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AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Features
* * * * * * * * * * * * * * Wide input voltage range from 2.5V to 5.5V 200mV low dropout voltage at 150mA output current Guaranteed 150mA output current. Low quiescent current 50A Output voltage from 1.0V to 3.5V 2% output voltage accuracy Low temperature drift at output voltage High PSRR Fast transient response Current limit protection Short circuit protection Thermal shutdown protection SOT25 and SOT353: Available in "Green" Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1)
General Description
The AP7115 is a 150mA, fixed output voltage, low dropout linear regulator. The device includes pass element, error amplifier, band gap reference, current-limit and thermal shutdown circuit. The characteristics of low dropout voltage and low quiescent current make it suitable for use in battery powered devices. The typical quiescent current is approximately 50A. Several fixed output voltages are available from 1.0V to 3.5V. Additional protection is provided with built-in current-limit and thermal-shutdown functions.
Applications
* * * * * * Wireless Communication GSM/GPRS Cellular Phones Handheld Mobile Devices Battery Powered Devices CD-ROM, DVD, and LAN Cards PC and Notebook Peripherals
Typical Application Circuit
ON
AP7115
IN VIN CIN 1F GND EN OUT BP C BP 0.1F
EN OFF VOUT C OUT 1F
AP7115 Rev. 10
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(c) Diodes Incorporated
AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Ordering Information
AP7115 - XX XX G - 7
Output voltage 10 : 1.0V 12 : 1.2V 15 : 1.5V 18 : 1.8V 25 : 2.5V 28 : 2.8V 29 : 2.85V 30 : 3.0V 33 : 3.3V 35 : 3.5V
Package
W : SOT25 SE : SOT353
Green
G : Green
Packing
7 : Tape & Reel
Device AP7115-XXWG-7 AP7115-XXSEG-7
Notes:
Package Code W SE
Packaging (Note 2) SOT25 SOT353
7" Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel -7 3000/Tape & Reel -7
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
Pin Assignments
( Top View ) IN 1 GND 2 EN 3 4 BP SOT25 / SOT353 5 OUT
Pin Descriptions
Pin Name IN GND EN BP OUT Pin NO. 1 2 3 4 5 Voltage Input Ground Chip Enable Control Band-Gap Bypass Voltage Output Description
AP7115 Rev. 10
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AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Block Diagram
IN Current Limit EN Enable Bandgap 0.8V Thermal Shutdown BP Error Amp
OUT
-
+
GND
Absolute Maximum Ratings
Symbol ESD MM VIN VCE VOUT VBP PD TJ TST Parameter Machine Model ESD Protection Input Voltage CE Pin Voltage Output Voltage Band Gap Bypass Pin Voltage Power Dissipation Operating Junction Temperature Range Storage Temperature Range Rating 3.5 400 -0.3~5.5 -0.3~5.5 -0.3~Vin+0.3 -0.3~5.5 500 -40 to +125 -65 to +150 Unit KV V V V V V mW
o o
ESD HBM Human Body Model ESD Protection
C C
Recommended Operating Conditions
Symbol VIN IOUT TA Parameter Input Voltage Output Current Operating Ambient Temperature Min 2.5 -40 Max 5.5 150 85 Unit V mA o C
AP7115 Rev. 10
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(c) Diodes Incorporated
AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Electrical Characteristics
Symbol Parameter System Supply Input VIN Operating input voltage VOUT/VOUT Output Voltage Accuracy VDO IOUT IQ Ishutdown Dropout Voltage Output Current Quiescent Current Shutdown Current
(VCC = 3.3V, IL = 30mA, CIN = 1F, COUT = 1F, TA = 25oC)
Conditions IL = 0 ~ 150mA VIN = VOUT + 1V where 1mA IOUT 50mA IL = 150mA VIN - VOUT = 1V VIN = VOUT + 1V where IOUT = 0 and VCE = VIN VIN = VOUT + 1V where IOUT = 0 and VCE = 0 IOUT = 30mA, f = 1kHz
Min 2.5 -2
Typ.
Max 5.5 2
Unit V % mV mA A A dB mA
o
200 150 50 0.1 200 70 250 150 30 50 2.0 0.01 0.01 0.02 0.003 50 200 337 52 121
300 80 1
PSRR Power Supply Rejection Ratio Ilimit Current Limit Thermal Management Tshutdown Thermal Shutdown Reference Voltage VREF/T Tempco of Bandgap Reference IOUT = 30mA, -40 T 85 VOUT/T Tempco of Output Voltage Control and Protection VIH,CE VIL,CE VCE = VIN @VIN = 5.0V and VSS = 0V ICE CE Pin Leakage Current VCE = VSS @VIN = 5.0V and VSS = 0V Regulation VOUT + 0.5V VIN 5.5V where VO/VIN Line Regulation VOUT >2.0V, IOUT = 30mA 1mA IL 150mA where Load Regulation VLOAD VIN = VOUT + 1V Noise Output Noise BW = 10Hz ~ 100kHz en Thermal Resistance SOT25 (Note 3) Thermal Resistance JA Junction-to-Ambient SOT353 (Note 3) SOT25 (Note 3) Thermal Resistance JC Junction-to-Case SOT353 (Note 3)
Notes:
C
o
50 100
ppm/ C o ppm/ C V V A A %/V %/mA Vrms
0.7 0.1 0.1 0.1 0.006
-
o o
C/W C/W o C/W o C/W
3. Test condition for SOT25 and SOT353: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
AP7115 Rev. 10
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(c) Diodes Incorporated
AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Typical Operating Characteristics
Quiescent current vs. Vcc ( V IN =2.5~5.5V, I OUT=0mA )
80
Quiescent current vs. Temperature ( VIN=5V, IOUT=0mA )
80 Quiescent current (uA) 70 60 50 40 30 20
Quiescent current (uA)
70 60 50 40 30 20 2.5V 3.0V 3.5V 4.0V 4.5V 5.0V 5.5V
-40
-20
0
25
50
85
Vcc
Tem perature
270 250 Current limit (mA) 230 210 190 170 150
Current limit vs. Temperature ( VIN =2.5V, VOUT=1.0V )
Current limit vs. Temperature ( VIN=5V, VOUT=1.0V )
330 310 Current limit (mA) 290 270 250 230 210 190 170 150
-40
-20
0 25 Tem perature
50
85
-40
-20
0 25 Tem perature
50
85
250 Dropout voltage (mV) 200 150 100 50 0
0mA
Iout vs. Dropout voltage ( TA=25 )
370 Current limit (mA) 320 270 220 170 120
Current limit vs. Input voltage ( TA=25 )
20mA
40mA
60mA
80mA 100mA 120mA 150mA
2.5V
3.0V
Iout
3.5V 4.0V 4.5V Input voltage
5.0V
5.5V
AP7115 Rev. 10
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AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Typical Operating Characteristics
(Continued)
Short current vs. Temperature ( V IN =2.5V)
68
Short current vs. Temperature ( VIN =5V )
74 71 Short current (mA) 68 65 62 59 56 53 50
Short current (mA)
65 62 59 56 53 50 -40 -20 0 25 50 85
-40
-20
Temperature
0 25 Tem perature
50
85
Output Noise
Output Noise
Output Noise
AP7115 Rev. 10
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AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Typical Operating Characteristics
Load Transient Response
(Continued)
Load Transient Response
Start Up (EN vs. VOUT)
Start Up (EN vs. VOUT)
Start Up (EN vs. VOUT)
Start Up (EN vs. VOUT)
AP7115 Rev. 10
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AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Application Note
Input Capacitor An 1uF input capacitor is required between the AP7115 input pin and GND. There are no requirements for the ESR on input capacitor, but tolerance and temperature coefficient must be considered. Output Capacitor The AP7115 can work with very small ceramic output capacitors (1uF or greater). Higher capacitance values help to improve transient. The output capacitor's ESR is critical because it from a zero to provide phase lead which is required for loop stability. Figure below is Cout ESR vs. Load Current. PCB Layout Optimum performance can only be achieved when the device is mounted on a PC board according to the diagram below:
AP7115 Region of Stable Cout ESR vs. Load Current
100
Cout ESR ()
10
1
Stable
0.1
0.01 0 20 40 60 80 100 120 140 160
Load Current (mA)
Thermal Considerations Thermal Shutdown Protection limits power dissipation in AP7115. When the operation junction temperature exceeds 155C, the Over Temperature Protection circuit starts the thermal shutdown function and turns the pass element off. The pass element turn on again after the junction temperature cools by 30C. For continuous operation, do not exceed absolute maximum operation junction temperature 125C. The power dissipation definition in device is:
Band-Gap Bypass Capacitor 0.1uF bypass capacitor Between BP pin and GND can reduces output voltage noise. Shutdown Input Operation The AP7115 is shutdown by pulling the EN pin low, and turned on by driving the input high. If the shutdown feature is not required, the EN pin should be tied to VIN to keep the regulator on at all times. Dropout Voltage
PD = (VIN - VOUT) x IOUT + VIN x IQ
The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction to ambient. The maximum power dissipation can be calculated by the following formula:
PD(MAX) = ( TJ(MAX) - TA ) / JA
Where TJ(MAX) is the maximum operation junction temperature 125C, TA is the ambient temperature and the JA is the junction to ambient thermal resistance.
VDROPOUTVINVOUTRDS(ON)xIOUT
Current Limit The AP7115 monitors and controls the PMOS' gate voltage, limiting the output current to 250mA(typ.). The output can be shorted to ground for an indefinite period of time without damaging the part.
AP7115 Rev. 10
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AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Marking Information
( Top View )
5
4
7
XX Y W X 1 2 3
XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green
Part Number SOT25 AP7115-10W AP7115-12W AP7115-15W AP7115-18W AP7115-25W AP7115-28W AP7115-29W AP7115-30W AP7115-33W AP7115-35W
Identification Code FO FP FQ FR FS FT FU FV FW FX
Part Number SOT353 AP7115-10SE AP7115-12SE AP7115-15SE AP7115-18SE AP7115-25SE AP7115-28SE AP7115-29SE AP7115-30SE AP7115-33SE AP7115-35SE
Identification Code GO GP GQ GR GS GT GU GV GW GX
AP7115 Rev. 10
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AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
Package Information
(1) Package Type: SOT25
(All Dimensions in mm)
(2) Package Type: SOT353
0.10/0.30
1.15/1.35
2.0/2.2
C L
Gauge Plane
0.25/0.40 0.65Bsc. 1.8/2.2 1.10Max. 0.9/1.0 0.1/0.22 DETAIL"A"
C L
"A"
0/0.1
AP7115 Rev. 10
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(c) Diodes Incorporated
AP7115
150mA LOW DROPOUT LINEAR REGULATOR WITH SHUTDOWN
IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright (c) 2009, Diodes Incorporated www.diodes.com
AP7115 Rev. 10
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(c) Diodes Incorporated

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