View NCP1523_449205.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

NCP1523 3 MHz, 600 mA, High-Efficiency, Adjustable Output Voltage Stepdown Converter
The NCP1523 stepdown PWM DC-DC converter is optimized for portable applications powered from 1-cell Li-ion or 3-cell Alkaline/NiCd/NiMH batteries. The device is available in an adjustable output voltage from 0.9 V to 2.3 V. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built-in 3 MHz (nominal) oscillator which reduces component size by allowing a small inductor and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency. Finally, it includes an integrated soft-start, cycle-by-cycle current limiting, and thermal shutdown protection. The NCP1523 is available in a space saving, 8 pin chip scale package.
Features http://onsemi.com MARKING DIAGRAM
NCP1523G AYWW A1
A1 FLIP-CHIP-8 CASE 766AE A Y WW G A1 B1 C1 D1
* * * * * * * * * * * * * * *
Up to 93% Efficiency Sources up to 600 mA 3 MHz Switching Frequency Adjustable Output Voltage from 0.9 V to 2.3 V 60 mA Quiescent Current Synchronous Rectification for Higher Efficiency. 2.7 V to 5.5 V Input Voltage Range Thermal Limit Protection Shutdown Current Consumption of 0.3 mA This is a Pb-Free Device* Cellular Phones, Smart Phones and PDAs Digital Still Cameras MP3 Players and Portable Audio Systems Wireless and DSL Modems Portable Equipment
VIN CIN A2 C1 A1 OFF ON B2 VIN GND GND EN SW B1 VOUT D1 ADJ C2 R1 FB D2 R2 L
= Assembly Location = Year = Work Week = Pb-Free Package A2 PIN: B2 C3 D2 A1 - GND A2 - VIN B1 - SW B2 - EN C1 - GND C2 - ADJ D1 - VOUT D2 - FB
Top View (Bumps Below)
Typical Applications
ORDERING INFORMATION
Device Package Shipping 3000 / Tape * Reel NCP1523FCT2G FLIP-CHIP-8 (Pb-Free)
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications VOUT Brochure, BRD8011/D. COUT
Figure 1. NCP1523 Typical Applications
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
(c) Semiconductor Components Industries, LLC, 2006
August, 2006 - Rev. 0
1
Publication Order Number: NCP1523/D
NCP1523
100 90 EFFICIENCY (%) 80 70 60 50 40 30 1 10 100 IOUT, OUTPUT CURRENT (mA) 1000 VIN = 4.2 V VIN = 3.6 V VIN = 2.7 V
Figure 2. Efficiency vs. Output Current (VOUT = 2.0 V, Temperature = 25C)
TYPICAL APPLICATIONS
VIN VBATTERY A2 Q1 Q2 4.7 mF GND C1 PWM/PFM Control
SW B1 2.2 mH
4.7 mF VOUT D1
ILIMIT
GND A1
Comp
ADJ C2
R1 Reference Voltage Enable EN B2 Logic Control & Thermal Shutdown FB D2 R2
Figure 3. Simplified Block Diagram
http://onsemi.com
2
NCP1523
PIN FUNCTION DESCRIPTION
Pin A1 B2 B1 B2 C1 C2 D1 D2 Pin Name GND VIN SW EN GND ADJ VOUT FB Type Power Ground Power Input Analog Output Digital Input Power Ground Analog Input Analog Input Analog Input Description Ground connection for the NFET Power Stage and the analog sections. Power Supply Input for the PFET Power stage and the Analog Sections of the IC. Connection from Power MOSFETs to the Inductor. Enable for Switching Regulator. This pin is active high. This pin contains an internal pulldown resistor. Ground connection for the NFET Power Stage and the analog sections. This pin is the compensation input. R1 is connected to this pin. This pin is connected of the converter's output. This is the sense of the output voltage. Feedback voltage from the output of the power supply. This is the input to the error amplifier.
MAXIMUM RATINGS
Rating Minimum Voltage All Pins Maximum Voltage All Pins (Note 1) Maximum Voltage Enable, FB, SW Thermal Resistance, Junction-to-Air (Note 2) Operating Ambient Temperature Range Storage Temperature Range Junction Operating Temperature Latchup Current maximum Rating TA = 85C (Note 4) ESD Withstand Voltage (Note 3) Human Body Model Machine Model Symbol VMIN VMAX VMAX RJA TA TSTG TJ LU VESD Value -0.3 7 VIN + 0.3 159 -40 to 85 -55 to 150 -40 to 125 "100 2.0 200 Unit V V V C/W C C C mA kV V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. According to JEDEC standard JESD22-A108B 2. For the 8-Pin Chip scale package, the RJA is highly dependent of the PCB heatsink area. RJA = 159C/W with 50 mm2 PCB heatsink area. 3. This device series contains ESD protection and exceeds the following tests: Human Body Model (HBM) $2.0 kV per JEDEC standard: JESD22-A114 Machine Model (MM) $200 V per JEDEC standard: JESD22-A115 4. Latchup current maximum rating per JEDEC standard: JESD78.
http://onsemi.com
3
NCP1523
ELECTRICAL CHARACTERISTICS
(Typical values are referenced to TA = +25C, Minimum and Maximum values are referenced -40C to +85C ambient temperature, unless otherwise noted, operating conditions VIN = 3.6 V, VOUT = 1.8 V unless otherwise noted) Symbol VIN VUVLO Iq ISTB FOSC ILIM VREF VFBtol DVFB VOUT VOUT VOUT DVOUT VLOADREG
Rating Input Voltage Range Under voltage Lockout (VIN Falling) Quiescent Current PFM no load Standby Current, EN Low Oscillator Frequency Peak Inductor Current Feedback Reference Voltage FB Pin Tolerance Overtemperature Reference Voltage Line Regulation Output Voltage Accuracy (Note 5) Minimum Output Voltage Maximum Output Voltage Output Voltage Line Regulation (VIN = 2.7 - 5.5) IO = 100 mA Voltage Load Regulation (IO = 150 mA to 300 mA) (IO = 150 mA to 600 mA) Duty Cycle
Min 2.7
Typ
Max 5.5
Unit V V
2.4 60 0.3 2.400 3 1200 0.6 -3 0.1 -3% Vnom 0.9 2.3 0.1 +3% 3 95 1.2 3.600
mA mA MHz mA V % % V V V %
0.0005 0.001 100 300 300 0.05 0.01 1.2 0.4 350 450
%/mA %/mA % mW mW mA mA V V ms
RSWH RSWL ILeakH ILeakL VENH VENL TSTART
P-Channel On-Resistance N-Channel On-Resistance P-Channel Leakage Current N-Channel Leakage Current Enable Pin High Enable Pin Low Soft-Start Time
5. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).
http://onsemi.com
4
NCP1523
100 80 70 60 50 40 30 20 10 0 2.5 3.0 3.5 4.0 4.5 EN = VIN IOUT = 0 mA 5.0 IQ, QUIESCENT CURRENT (mA) IQ, QUIESCENT CURRENT (mA) 90 100 90 80 70 60 50 40 30 20 10 0 -40 10 60 110 VIN = 5.5 V VIN = 2.7 V
5.5
VIN, INPUT VOLTAGE (V)
TEMPERATURE (C)
Figure 4. Quiescent Current vs. Supply Voltage
1.0 0.9 SHUTDOWN CURRENT (mA) 0.8 EFFICIENCY (%) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2.5 3.0 3.5 4.0 4.5 EN = GND IOUT = 0 mA 5.0 5.5 100 90 80 70 60 50 40 30 1
Figure 5. Quiescent Current vs. Temperature
-40C
105C
25C
10
100
1000
VIN, INPUT VOLTAGE (V)
IOUT, OUTPUT CURRENT (mA)
Figure 6. Shutdown Current vs. Supply Voltage
100 90 EFFICIENCY (%) 80 70 60 50 40 30 1 105C 25C -40C EFFICIENCY (%) 100 90 80 70 60 50 40 30 1
Figure 7. Efficiency vs. Output Current (VOUT = 1.8 V, VIN = 3.6 V)
-40C
25C 105C
10
100
1000
10
100
1000
IOUT, OUTPUT CURRENT (mA)
IOUT, OUTPUT CURRENT (mA)
Figure 8. Efficiency vs. Output Current (VOUT = 0.9 V, VIN = 3.6 V)
Figure 9. Efficiency vs. Output Current VOUT = 2.0 V, VIN = 3.6 V)
http://onsemi.com
5
NCP1523
3.6 3.4 FREQUENCY (MHz) 3.2 3.0 2.8 2.6 2.4 2.8 IOUT = 400 mA IOUT = 600 mA FREQUENCY (MHz) 3.6 3.4 IOUT = 400 mA 3.2 3.0 2.8 2.6 2.4 -40
IOUT = 600 mA
3.3
3.8 4.3 VIN, INPUT VOLTAGE (V)
4.8
5.3
-20
0 20 40 TEMPERATURE (C)
60
80
Figure 10. Frequency vs. Input Voltage
5.0 IOUT, OUTPUT CURRENT (mA) 3.0 1.0 -1.0 -3.0 -5.0 0 300 250 200 150 100 50 0 2.7
Figure 11. Frequency vs. Temperature
LOAD REGULATION (%)
VOUT = 0.9 V
VOUT = 2.0 V
100
200 300 400 500 VOUT, OUTPUT VOLTAGE (V)
600
3.2
3.7 4.2 VIN, INPUT VOLTAGE (V)
4.7
5.2
Figure 12. Load Regulation
Figure 13. PFM/PWM Threshold vs. Input Voltage
Figure 14. Stepdown Converter PFM Mode Operation
Figure 15. Stepdown Converter PWM Mode Operation
http://onsemi.com
6
NCP1523
Figure 16. Load Transient Response in PFM Operation (10 mA to 100 mA)
Figure 17. Load Transient Response Between PFM and PWM Operation (100 mA to 200 mA)
Figure 18. Soft-Start Time (VIN = 3.6 V)
http://onsemi.com
7
NCP1523
OPERATION DESCRIPTION
Overview
The NCP1523 uses a constant frequency, voltage mode stepdown architecture. Both the main (P-Channel MOSFET) and synchronous (N-Channel MOSFET) switches are internal. It delivers a constant voltage from either a single Li-Ion or three cell NiMH/NiCd battery to portable devices such as cell phones and PDA. The output voltage is sets by external resistor divider. The NCP1523 sources up to 600 mA depending on external components chosen. The NCP1523 works with two mode of operation PWM/PFM depending on the current required. The device operates in PWM mode at load currents of approximately 130 mA or higher, having voltage tolerance of 3% with 90% efficiency or better. Lighter load currents cause the device to automatically switch into PFM mode for reduced current consumption (IQ = 60 mA typ) and a longer battery life. Additional features include soft-start, under voltage protection, current overload protection, and thermal shutdown protection. As shown in Figure 1, only six external components are required for implementation. The part uses an internal reference voltage of 0.6 V. It is recommended to keep the part in shutdown until the input voltage is 2.7 V or higher.
PWM Operating Mode
Q1 remains ON until the peak inductor current reaches 200 mA (nom). Then ILIM comparator goes high to switch off Q1. After a short dead time delay, switch rectifier Q2 is turn ON. The Negative current detector (NCD) will detect when the inductor current drops below zero and send the signal to turn off Q2. The output voltage continues to decrease through discharging the output capacitor. When the output voltage falls below the threshold of the PFM comparator, a new cycle starts immediately.
Cycle-by-Cycle Current Limitation
From the block diagram (Figure 3), an ILIM comparator is used to realize cycle-by-cycle current limit protection. The comparator compares the SW pin voltage with the reference voltage, which is biased by a constant current. If the inductor current reaches the limit, the ILIM comparator detects the SW voltage falling below the reference voltage and releases the signal to turn off the switch Q1. The cycle-by-cycle current limit is set at 1200 mA (nom).
Soft-Start
In this mode, the output voltage of the NCP1523 is regulated by modulating the on-time pulse width of the main switch Q1 at a fixed frequency of 3 MHz. The switching of the PMOS Q1 is controlled by a flip-flop driven by the internal oscillator and a comparator that compares the error signal from an error amplifier with the PWM ramp. At the beginning of each cycle, the main switch Q1 is turned ON by the rising edge of the internal oscillator clock. The inductor current ramps up until the sum of the current sense signal and compensation ramp becomes higher than the error voltage amplifier. Once this has occurred, the PWM comparator resets the flip-flop, Q1 is turned OFF and the synchronous switch Q2 is turned ON. Q2 replaces the external Schottky diode to reduce the conduction loss and improve the efficiency. To avoid overall power loss, a certain amount of dead time is introduced to ensure Q1 is completely turned OFF before Q2 is being turned ON.
PFM Operating Mode
The NCP1523 uses soft-start to limit the inrush current when the device is initially powered up or enabled. Soft-start is implemented by gradually increasing the reference voltage until it reaches the full reference voltage. During startup, a pulsed current source charges the internal soft-start capacitor to provide gradually increasing reference voltage. When the voltage across the capacitor ramps up to the nominal reference voltage, the pulsed current source will be switched off and the reference voltage will switch to the regular reference voltage.
Shutdown Mode
When the EN pin has a voltage applied of less than 0.4 V, the NCP1523 will be disabled. In shutdown mode, the internal reference, oscillator and most of the control circuitries are turned off. Therefore, the typical current consumption will be 0.3 mA (typical value). Applying a voltage above 1.2 V to EN pin will enable the device for normal operation. The device will go through soft-start to normal operation. EN pin should be activated after the input voltage is applied.
Thermal Shutdown
Under light load conditions, The NCP1523 enters in low current PFM mode operation to reduce power consumption. The output regulation is implemented by pulse frequency modulation. If the output voltage drops below the threshold of PM comparator (typically Vnom - 2%), a new cycle will be initiated by the PM comparator to turn on the switch Q1.
circuitry is provided to protect the integrated circuit in the event that the maximum junction Temperature is exceeded. If the junction temperature exceeds 160C, the device shuts down. In this mode switch Q1 and Q2 and the control circuits are all turned off. The device restarts in soft start after the temperature drops below 135C. This feature is provided to prevent catastrophic failures from accidental device overheating and it is not intended as a substitute for proper heatsinking.
http://onsemi.com
8
NCP1523
APPLICATION INFORMATION
Output Voltage Selection
The output voltage is programmed through an external resistor divider connected from ADJ to FB then to GND. For low power consumption and noise immunity, the resistor from FB to GND (R2) should be in the [100 kW - 600 kW] range. If R2 is 200 kW given the VFB is 0.6 V, the current through the divider will be 3 mA. The formula below gives the value of VOUT, given the desired R1 and the R1 value,
VOUT + VFB 1) R1 R2
(eq. 1)
The device operates with inductance value between 1 mH and maximum of 4.7 mH. If the corner frequency is moved, it is recommended to check the loop stability depending of the output ripple voltage accepted and output current required. For lower frequency, the stability will be increase; a larger output capacitor value could be chosen without critical effect on the system. On the other hand, a smaller capacitor value increases the corner frequency and it should be critical for the system stability. Take care to check the loop stability. The phase margin is usually higher than 45.
Table 2. L-C FILTER EXAMPLE
Inductance (L) 1 mH 2.2 mH 4.7 mH Output Capacitor (COUT) 10 mF 4.7 mF 2.2 mF
* * * *
VOUT: output voltage (volts) VFB: feedback voltage = 0.6 V R1: feedback resistor from VOUT to FB R2: feedback resistor from FB to GND
Input Capacitor Selection
In PWM operating mode, the input current is pulsating with large switching noise. Using an input bypass capacitor can reduce the peak current transients drawn from the input supply source, thereby reducing switching noise significantly. The capacitance needed for the input bypass capacitor depends on the source impedance of the input supply. The maximum RMS current occurs at 50% duty cycle with maximum output current, which is IO, max/2. For NCP1523, a low profile ceramic capacitor of 4.7 mF should be used for most of the cases. For effective bypass results, the input capacitor should be placed as close as possible to the VIN Pin.
Table 1. LIST OF INPUT CAPACITOR
Murata GRM188R60J475KE GRM21BR71C475KA Taiyo Yuden TDK JMK212BY475MG C2012X5ROJ475KB C1632X5ROJ475KT
Inductor Selection
The inductor parameters directly related to device performances are saturation current and DC resistance and inductance value. The inductor ripple current (DIL) decreases with higher inductance:
DIL + VOUT L V 1 * OUT VIN fSW
(eq. 3)
DIL peak to peak inductor ripple current L inductor value fSW Switching frequency The Saturation current of the inductor should be rated higher than the maximum load current plus half the ripple current:
IL(MAX) + IO(MAX) ) DIL 2
(eq. 4)
Output L-C Filter Design Considerations:
IL(MAX) Maximum Inductor Current IO(MAX) Maximum Output Current The inductor's resistance will factor into the overall efficiency of the converter. For best performances, the DC resistance should be less than 0.3 W for good efficiency.
Table 3. LIST OF INDUCTOR
FDK TDK Taiyo Yuden Coil Craft MIPW3226 Series VLF3010AT Series LQ CBL2012 DO1605-T Series LPO3010
The NCP1523 is built in 3 MHz frequency and uses voltage mode architecture. The correct selection of the output filter ensures good stability and fast transient response. Due to the nature of the buck converter, the output L-C filter must be selected to work with internal compensation. For NCP1523, the internal compensation is internally fixed and it is optimized for an output filter of L = 2.2 mH and COUT = 4.7 mF The corner frequency is given by:
fc + 1 2p L Cout + 1 2p 2.2 mH 4.7 mF + 49.5 kHz
(eq. 2)
http://onsemi.com
9
NCP1523
Output Capacitor Selection
Selecting the proper output capacitor is based on the desired output ripple voltage. Ceramic capacitors with low ESR values will have the lowest output ripple voltage and are strongly recommended. The output capacitor requires either an X7R or X5R dielectric. The output ripple voltage in PWM mode is given by:
DVOUT + DIL 1 4 fSW COUT ) ESR
(eq. 5)
Table 4. LIST OF OUTPUT CAPACITOR ROHS
Murata GRM188R60J475KE GRM21BR71C475KA GRM188R60OJ106ME Taiyo Yuden JMK212BY475MG JMK212BJ106MG TDK C2012X5ROJ475KB C1632X5ROJ475KT C2012X5ROJ106K 10 mF 10 mF 4.7 mF 10 mF 4.7 mF 4.7 mF
In PFM mode (at light load), the output voltage is regulated by pulse frequency modulation. The output voltage ripple is independent of the output capacitor value. It is set by the threshold of PM comparator. APPLICATION BOARD
PCB Layout Recommendations
Good PCB layout plays an important role in switching mode power conversion. Careful PCB layout can help to minimize ground bounce, EMI noise and unwanted feedback that can affect the performance of the converter. Hints suggested below can be used as a guideline in most situations. 1. Use star-ground connection to connect the IC ground nodes and capacitor GND nodes together at one point. Keep them as close as possible, and then connect this to the ground plane through several vias. This will reduce noise in the ground plane by preventing the switching currents from flowing through the ground plane. 2. Place the power components (i.e., input capacitor, inductor and output capacitor) as close together as
VBATTERY
possible for best performance. All connecting traces must be short, direct, and wide to reduce voltage errors caused by resistive losses through the traces. 3. Separate the feedback path of the output voltage from the power path. Keep this path close to the NCP1523 circuit. And also route it away from noisy components. This will prevent noise from coupling into the voltage feedback trace. 4. Place the DC-DC converter away from noise sensitive circuitry, such as RF circuits. The following shows the NCP1523 demo board schematic and layout and bill of materials:
U2 A2 B2 C2 R1 D2 VIN EN ADJ FB
NCP1523 GND A1 L1
OFF C1
ON
SW D1 GND1 C1 D1
VOUT
R2
C2
Figure 19. NCP1523 Board Schematic
http://onsemi.com
10
NCP1523
Figure 20. NCP1523 Board Layout
U1 VIN EN ADJ R1 220k FB R2 220k A2 B2 C2 D2 VIN EN ADJ FB
NCP1523 GND A1 SW L1 2.2 mH GND C1 D1 TP3 VOUT C2 4.7 mF VOUT B2 VOUT
SW D1
VOUT
B1 VIN 1 2
TP1 VIN VIN C1 4.7 mF
J1 S1
TP2 EN 1 2 3 VIN EN G1 EN
1 JMP1 JMP 2
1 JMP2 JMP 2
Figure 21. NCP1523 Board Schematic
http://onsemi.com
11
NCP1523
Figure 22. NCP1523 Assembly Layer
Figure 23. NCP1523 Top Layer Routing
http://onsemi.com
12
NCP1523
Figure 24. NCP1523 Bottom Layer Routing
BILL OF MATERIALS
Designator U1 C1, C2 R1, R2 L1 B1, B2 Qty 1 2 2 1 2 Description IC, Converter, DC/DC Ceramic Capacitor SMD resistor Inductor Male SL5.08/2/90B + Female BLZ5.08/2/90B Connector I/O 3 Pin Jumper Header Jumper for GND Test point SMB Connector 88.9 x 61.1 x 1.6 mm 4 Layers Value NA 4.7 mF, 10 V, X5R 220k 2.2 mH NA Tolerance NA 0,1 0.05 0.2 NA Footprint 8-Pin Flip Chip 0805 0805 1605 NA Manufacturer ON Semiconductor Murata Standard Coilcraft Weidmuller Manufacturer Part Number NCP1523 GRM219R61A475 KE19D Standard DO1605T-222MLB 1510360000 + 1555060000
J1 JMP1, JMP2 TP1, TP2, TP3 G1 PCB
1 2 3 0* 1
NA NA NA NA NA
NA NA NA NA NA
2.54 mm 10.16 mm NA NA NA
TYCO/AMP Harwin Standard Radiall Any
5-826629-0 D3082-01 Standard R114665000 TLS-P-001-A-050 6-DA
http://onsemi.com
13
NCP1523
PACKAGE DIMENSIONS
FLIP-CHIP-8 CASE 766AE-01 ISSUE A
D AB E
NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. COPLANARITY APPLIES TO SPHERICAL CROWNS OF SOLDER BALLS. MILLIMETERS DIM MIN MAX A --- 0.655 A1 0.210 0.270 A2 0.335 0.385 b 0.290 0.340 D 2.050 BSC D1 1.500 BSC E 1.050 BSC e 0.500 BSC
TERMINAL A1 LOCATOR 2X
0.10 C TOP VIEW A2 A1 0.10 C A C
SEATING PLANE
8X
0.05 C
NOTE 3
b 0.05 C A B
8X
0.03 C
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative
E E
2 1
2X
0.10 C
SIDE VIEW
D1 e/2 e
A
B
C
D
e
BOTTOM VIEW
http://onsemi.com
14
NCP1523/D

▲Up To Search▲

Price & Availability of NCP1523

	To Download NCP1523 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .