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MIC39100/39101/39102
Micrel
MIC39100/39101/39102
1A Low-Voltage Low-Dropout Regulator
General Description
The MIC39100, MIC39101, and MIC39102 are 1A lowdropout linear voltage regulators that provide low-voltage, high-current output from an extremely small package. Utilizing Micrel's proprietary Super eta PNPTM pass element, the MIC39100/1/2 offers extremely low dropout (typically 410mV at 1A) and low ground current (typically 11mA at 1A). The MIC39100 is a fixed output regulator offered in the SOT-223 package. The MIC39101 and MIC39102 are fixed and adjustable regulators, respectively, in a thermally enhanced power 8-lead SOP (small outline package). The MIC39100/1/2 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V or 2.5V to 1.8V. A guaranteed maximum dropout voltage of 630mV over all operating conditions allows the MIC39100/1/2 to provide 2.5V from a supply as low as 3.13V and 1.8V from a supply as low as 2.43V. The MIC39100/1/2 is fully protected with overcurrent limiting, thermal shutdown, and reversed-battery protection. Fixed voltages of 5.0V, 3.3V, 2.5V, and 1.8V are available on MIC39100/1 with adjustable output voltages to 1.24V on MIC39102.
Features
* Fixed and adjustable output voltages to 1.24V * 410mV typical dropout at 1A Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V conversion * 1A minimum guaranteed output current * 1% initial accuracy * Low ground current * Current limiting and thermal shutdown * Reversed-battery protection * Reversed-leakage protection * Fast transient response * Low-profile SOT-223 package * Power SO-8 package
Applications
* * * * * * * LDO linear regulator for PC add-in cards PowerPCTM power supplies High-efficiency linear power supplies SMPS post regulator Multimedia and PC processor supplies Battery chargers Low-voltage microcontrollers and digital logic
For other voltages, contact Micrel.
Ordering Information
Part Number MIC39100-1.8BS MIC39100-2.5BS MIC39100-3.3BS MIC39100-5.0BS MIC39101-1.8BM MIC39101-2.5BM MIC39101-3.3BM MIC39101-5.0BM MIC39102BM Voltage 1.8V 2.5V 3.3V 5.0V 1.8V 2.5V 3.3V 5.0V Adj. Junction Temp. Range -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C Package SOT-223 SOT-223 SOT-223 SOT-223 SOP-8 SOP-8 SOP-8 SOP-8 SOP-8
Typical Applications
100k
VIN 3.3V
MIC39100 IN OUT GND
2.5V 10F tantalum
VIN 3.3V
ENABLE SHUTDOWN
MIC39101 IN OUT R1 EN FLG GND
Error Flag Output 2.5V 10F tantalum
VIN 2.5V
ENABLE SHUTDOWN
MIC39102 IN OUT R1 EN ADJ GND R2
1.5V 10F tantalum
2.5V/1A Regulator
Super eta PNP is a trademark of Micrel, Inc.
2.5V/1A Regulator with Error Flag
1.5V/1A Adjustable Regulator
Micrel, Inc. * 1849 Fortune Drive * San Jose, CA 95131 * USA * tel + 1 (408) 944-0800 * fax + 1 (408) 944-0970 * http://www.micrel.com
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MIC39100/39101/39102
MIC39100/39101/39102
Micrel
Pin Configuration
GND
TAB
1
2
3
IN
GND OUT
MIC39100-x.x Fixed SOT-223 (S)
EN 1 IN 2 OUT 3 FLG 4 8 GND 7 GND 6 GND 5 GND EN 1 IN 2 OUT 3 ADJ 4 8 GND 7 GND 6 GND 5 GND
MIC39101-x.x Fixed SOP-8 (M)
MIC39102 Adjustable SOP-8 (M)
Pin Description
Pin No. Pin No. Pin No. MIC39100 MIC39101 MIC39102 1 1 2 3 3 4 4 2, TAB 5-8 5-8 1 2 3 Pin Name EN IN OUT FLG ADJ GND Pin Function Enable (Input): CMOS-compatible control input. Logic high = enable, logic low or open = shutdown. Supply (Input) Regulator Output Flag (Output): Open-collector error flag output. Active low = output undervoltage. Adjustment Input: Feedback input. Connect to resitive voltage-divider network. Ground
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Absolute Maximum Ratings (Note 1)
Supply Voltage (VIN) ..................................... -20V to +20V Enable Voltage (VEN) .................................................. +20V Storage Temperature (TS) ....................... -65C to +150C Lead Temperature (soldering, 5 sec.) ....................... 260C ESD, Note 3
Operating Ratings (Note 2)
Supply Voltage (VIN) .................................. +2.25V to +16V Enable Voltage (VEN) .................................................. +16V Maximum Power Dissipation (PD(max))..................... Note 4 Junction Temperature (TJ) ....................... -40C to +125C Package Thermal Resistance SOT-223 (JC) ..................................................... 15C/W SOP-8 (JC) ......................................................... 20C/W
Electrical Characteristics
VIN = VOUT + 1V; VEN = 2.25V; TJ = 25C, bold values indicate -40C TJ +125C; unless noted Symbol VOUT Parameter Output Voltage Line Regulation Load Regulation VOUT/T VDO Output Voltage Temp. Coefficient, Note 5 Dropout Voltage, Note 6 IOUT = 100mA, VOUT = -1% IOUT = 500mA, VOUT = -1% IOUT = 750mA, VOUT = -1% IOUT = 1A, VOUT = -1% IGND Ground Current, Note 7 IOUT = 100mA, VIN = VOUT + 1V IOUT = 500mA, VIN = VOUT + 1V IOUT = 750mA, VIN = VOUT + 1V IOUT = 1A, VIN = VOUT + 1V IOUT(lim) Enable Input VEN IEN Enable Input Voltage logic low (off) logic high (on) Enable Input Current VEN = 2.25V VEN = 0.8V Flag Output IFLG(leak) VFLG(do) VFLG Output Leakage Current Output Low Voltage Low Threshold High Threshold Hysteresis VOH = 16V VIN = 2.250V, IOL, = 250A, Note 9 % of VOUT % of VOUT 1 93 99.2 0.01 210 1 2 300 400 A A mV mV % % % 2.25 1 15 30 75 2 4 0.8 V V A A A A Current Limit VOUT = 0V, VIN = VOUT + 1V Condition 10mA 10mA IOUT 1A, VOUT + 1V VIN 8V IOUT = 10mA, VOUT + 1V VIN 16V VIN = VOUT + 1V, 10mA IOUT 1A, Min -1 -2 0.06 0.2 40 140 275 330 410 400 4 6.5 11 1.8 20 2.5 500 550 630 Typ Max 1 2 0.5 1 100 200 250 Units % % % % ppm/C mV mV mV mV mV mV A mA mA mA A
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MIC39100/39101/39102
MIC39100/39101/39102
Symbol Parameter Condition Min Typ Max
Micrel
Units
MIC39102 Only Reference Voltage Note 10 Adjust Pin Bias Current Reference Voltage Temp. Coefficient Adjust Pin Bias Current Temp. Coefficient
Note 1. Note 2. Note 3. Note 4. Note 5. Note 6. Note 7. Note 8. Note 9. Exceeding the absolute maximum ratings may damage the device. The device is not guaranteed to function outside its operating rating. Devices are ESD sensitive. Handling precautions recommended. PD(max) = (TJ(max) - TA) / JA, where JA depends upon the printed circuit layout. See "Applications Information." Output voltage temperature coefficient is VOUT(worst case) / (TJ(max) - TJ(min)) where TJ(max) is +125C and TJ(min) is -40C. VDO = VIN - VOUT when VOUT decreases to 98% of its nominal output voltage with VIN = VOUT + 1V. For output voltages below 2.25V, dropout voltage is the input-to-output voltage differential with the minimum input voltage being 2.25V. Minimum input operating voltage is 2.25V. IGND is the quiescent current. IIN = IGND + IOUT. VEN 0.8V, VIN 8V, and VOUT = 0V. For a 2.5V device, VIN = 2.250V (device is in dropout).
1.228 1.215 1.203
1.240
1.252 1.265 1.277 80 120
V V V nA nA ppm/C nA/C
40 Note 7 20 0.1
Note 10. VREF VOUT (VIN - 1V), 2.25V VIN 16V, 10mA IL 1A, TJ = TMAX. Note 11. Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 200mA load pulse at VIN = 16V for t = 10ms.
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Typical Characteristics
Power Supply Rejection Ratio
80 VIN = 5V VOUT = 3.3V 60 PSRR (dB) PSRR (dB) 60 PSRR (dB) 80 VIN = 5V VOUT = 3.3V 60
Power Supply Rejection Ratio
80
Power Supply Rejection Ratio
VIN = 3.3V VOUT = 2.5V
40 20 IOUT = 1A COUT = 10F CIN = 0 0 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1k 10k 100k 1M 10 100 FREQUENCY (Hz)
40 IOUT = 1A COUT = 47F CIN = 0
40 20 IOUT = 1A COUT = 10F CIN = 0 0 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1k 10k 100k 1M 10 100 FREQUENCY (Hz)
20
0 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1k 10k 100k 1M 10 100 FREQUENCY (Hz)
Power Supply Rejection Ratio
80 DROPOUT VOLTAGE (mV) VIN = 3.3V VOUT = 2.5V 60 PSRR (dB) 500 450 400 350 300 250 200 150 100 50 0 0
Dropout Voltage vs. Output Current
DROPOUT VOLTAGE (mV) 2.5V 3.3V 1.8V TA = 25C
600 550 500
Dropout Voltage vs. Temperature
ILOAD = 1A 1.8V 3.3V
40 20 IOUT = 1A COUT = 47F CIN = 0 0 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1k 10k 100k 1M 10 100 FREQUENCY (Hz)
450 400 350 300 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) 2.5V
250 500 750 1000 1250 OUTPUT CURRENT (mA)
2.8 OUTPUT VOLTAGE (V) 2.6 2.4 2.2 2.0 1.8 1.6 1.4 2
Dropout Characteristics (2.5V)
OUTPUT VOLTAGE (V) ILOAD =100mA
3.6 3.4 3.2 3.0
Dropout Characteristics (3.3V)
14 GROUND CURRENT (mA)
Ground Current vs. Output Current
12 10 8 6 4 2 0 0 200 400 600 800 1000 OUTPUT CURRENT (mA) 1.8V 2.5V 3.3V
ILOAD =100mA
ILOAD =750mA ILOAD =1A
ILOAD =750mA 2.8 ILOAD =1A 2.6 2.4 2.8
2.3 2.6 2.9 3.2 SUPPLY VOLTAGE (V)
3.5
3.2 3.6 4.0 SUPPLY VOLTAGE (V)
4.4
Ground Current vs. Supply Voltage (2.5V)
2.0
Ground Current vs. Supply Voltage (2.5V)
35
1.4 GROUND CURRENT (mA) 1.2 1.0 0.8 0.6 0.4 0.2 0 0
Ground Current vs. Supply Voltage (3.3V)
GROUND CURRENT (mA)
GROUND CURRENT (mA)
1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 2 4 6 SUPPLY VOLTAGE (V) 8 ILOAD =10mA ILOAD =100mA
30 25 20 15 10 5 0 0 2 4 6 SUPPLY VOLTAGE (V) 8 ILOAD =1A
ILOAD =100mA
ILOAD =10mA
2 4 6 SUPPLY VOLTAGE (V)
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Micrel
Ground Current vs. Supply Voltage (3.3V)
50
1.0 GROUND CURRENT (mA) 0.8 0.6
Ground Current vs. Temperature
GROUND CURRENT (mA)
5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5
Ground Current vs. Temperature
2.5V 3.3V
GROUND CURRENT (mA)
40 30 20 10 0 0 2 4 6 SUPPLY VOLTAGE (V) 8 ILOAD =1A
ILOAD =10mA
3.3V 0.4 0.2 2.5V
1.8V
1.8V
ILOAD = 500mA
0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C)
0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C)
GROUND CURRENT (mA)
OUTPUT VOLTAGE (V)
ILOAD = 1A 15 2.5V 1.8V
SHORT CIRCUIT CURRENT (A)
20
Ground Current vs. Temperature
Output Voltage vs. Temperature
3.40 Typical 3.3V Device 2.5 2.0 1.5
Short Circuit vs. Temperature
3.3V
3.35
10
3.3V
3.30
2.5V 1.0 0.5
1.8V
5
3.25
0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C)
3.20 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C)
0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (C)
Error Flag Pull-Up Resistor
6
ENABLE CURRENT A)
12 10 8 6 4 2
Enable Current vs. Temperature
FLAG VOLTAGE (mV) VIN = VOUT + 1V VEN = 2.4V
250 200 150 100 50
Flag-Low Voltage vs. Temperature
FLAG-LOW VOLTAGE
VIN = 5V FLAG VOLTAGE (V) 5 4 3 2 1 FLAG LOW (FAULT) 1 10 100 100010000 RESISTANCE (k) FLAG HIGH (OK)
VIN = 2.25V RPULL-UP = 22k
0 0.01 0.1
0 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (C)
0 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (C)
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Functional Characteristics
Load Transient Response
OUTPUT VOLTAGE (200mV/div.)
Load Transient Response
OUTPUT VOLTAGE (200mV/div.)
VOUT = 2.5V COUT = 10F
VOUT = 2.5V COUT = 47F
1A
LOAD CURRENT (500mA/div.) LOAD CURRENT (500mA/div.)
1A
100mA
10mA
TIME (250s/div.)
TIME (500s/div.)
Line Transient Response
OUTPUT VOLTAGE (50mV/div.)
VOUT = 2.5V COUT = 10F
INPUT VOLTAGE (2V/div.)
TIME (25s/div.)
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MIC39100/39101/39102
Micrel
Functional Diagrams
IN OV ILIMIT Ref. 1.240V 18V
OUT
Thermal Shutdown
MIC39100 GND
MIC39100 Fixed Regulator Block Diagram
IN O.V. ILIMIT 1.180V FLAG 1.240V 18V
OUT
Ref.
EN Thermal Shutdown
GND MIC39101
MIC39101 Fixed Regulator with Flag and Enable Block Diagram
IN O.V. ILIMIT 1.240V 18V
OUT
Ref.
ADJ EN Thermal Shutdown GND MIC39102
MIC39102 Adjustable Regulator Block Diagram
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Micrel
Input Capacitor An input capacitor of 1F or greater is recommended when the device is more than 4 inches away from the bulk ac supply capacitance or when the supply is a battery. Small, surface mount, ceramic chip capacitors can be used for bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator, further improving the integrity of the output voltage. Error Flag The MIC39101 features an error flag (FLG), which monitors the output voltage and signals an error condition when this voltage drops 5% below its expected value. The error flag is an open-collector output that pulls low under fault conditions and may sink up to 10mA. Low output voltage signifies a number of possible problems, including an overcurrent fault (the device is in current limit) or low input voltage. The flag output is inoperative during overtemperature conditions. A pull-up resistor from FLG to either VIN or VOUT is required for proper operation. For information regarding the minimum and maximum values of pull-up resistance, refer to the graph in the typical characteristics section of the data sheet. Enable Input The MIC39101 and MIC39102 versions feature an activehigh enable input (EN) that allows on-off control of the regulator. Current drain reduces to "zero" when the device is shutdown, with only microamperes of leakage current. The EN input has TTL/CMOS compatible thresholds for simple logic interfacing. EN may be directly tied to VIN and pulled up to the maximum supply voltage Transient Response and 3.3V to 2.5V or 2.5V to 1.8V Conversion The MIC39100/1/2 has excellent transient response to variations in input voltage and load current. The device has been designed to respond quickly to load current variations and input voltage variations. Large output capacitors are not required to obtain this performance. A standard 10F output capacitor, preferably tantalum, is all that is required. Larger values help to improve performance even further. By virtue of its low-dropout voltage, this device does not saturate into dropout as readily as similar NPN-based designs. When converting from 3.3V to 2.5V or 2.5V to 1.8V, the NPN based regulators are already operating in dropout, with typical dropout requirements of 1.2V or greater. To convert down to 2.5V or 1.8V without operating in dropout, NPNbased regulators require an input voltage of 3.7V at the very least. The MIC39100 regulator will provide excellent performance with an input as low as 3.0V or 2.5V respectively. This gives the PNP based regulators a distinct advantage over older, NPN based linear regulators. Minimum Load Current The MIC39100/1/2 regulator is specified between finite loads. If the output current is too small, leakage currents dominate and the output voltage rises. A 10mA minimum load current is necessary for proper regulation.
Applications Information
The MIC39100/1/2 is a high-performance low-dropout voltage regulator suitable for moderate to high-current voltage regulator applications. Its 630mV dropout voltage at full load and overtemperature makes it especially valuable in batterypowered systems and as high-efficiency noise filters in postregulator applications. Unlike older NPN-pass transistor designs, where the minimum dropout voltage is limited by the base-to-emitter voltage drop and collector-to-emitter saturation voltage, dropout performance of the PNP output of these devices is limited only by the low VCE saturation voltage. A trade-off for the low dropout voltage is a varying base drive requirement. Micrel's Super eta PNPTM process reduces this drive requirement to only 2% of the load current. The MIC39100/1/2 regulator is fully protected from damage due to fault conditions. Linear current limiting is provided. Output current during overload conditions is constant. Thermal shutdown disables the device when the die temperature exceeds the maximum safe operating temperature. Transient protection allows device (and load) survival even when the input voltage spikes above and below nominal. The output structure of these regulators allows voltages in excess of the desired output voltage to be applied without reverse current flow.
VIN MIC39100-x.x IN CIN OUT GND COUT VOUT
Figure 1. Capacitor Requirements Output Capacitor The MIC39100/1/2 requires an output capacitor to maintain stability and improve transient response. Proper capacitor selection is important to ensure proper operation. The MIC39100/1/2 output capacitor selection is dependent upon the ESR (equivalent series resistance) of the output capacitor to maintain stability. When the output capacitor is 10F or greater, the output capacitor should have an ESR less than 2. This will improve transient response as well as promote stability. Ultra-low-ESR capacitors (<100m), such as ceramic chip capacitors, may promote instability. These very low ESR levels may cause an oscillation and/or underdamped transient response. A low-ESR solid tantalum capacitor works extremely well and provides good transient response and stability over temperature. Aluminum electrolytics can also be used, as long as the ESR of the capacitor is <2. The value of the output capacitor can be increased without limit. Higher capacitance values help to improve transient response and ripple rejection and reduce output noise.
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MIC39100/39101/39102
MIC39100/39101/39102
Adjustable Regulator Design
MIC39102 OUT R1
ENABLE SHUTDOWN
Micrel
sink thermal resistance) and SA (sink-to-ambient thermal resistance). Using the power SOP-8 reduces the JC dramatically and allows the user to reduce CA. The total thermal resistance, JA (junction-to-ambient thermal resistance) is the limiting factor in calculating the maximum power dissipation capability of the device. Typically, the power SOP-8 has a JC of 20C/W, this is significantly lower than the standard SOP-8 which is typically 75C/W. CA is reduced because pins 5 through 8 can now be soldered directly to a ground plane which significantly reduces the case-to-sink thermal resistance and sink to ambient thermal resistance. Low-dropout linear regulators from Micrel are rated to a maximum junction temperature of 125C. It is important not to exceed this maximum junction temperature during operation of the device. To prevent this maximum junction temperature from being exceeded, the appropriate ground plane heat sink must be used.
VIN
IN
VOUT COUT
EN
ADJ GND
R2
R1 VOUT = 1.240V 1 + R2
Figure 2. Adjustable Regulator with Resistors The MIC39102 allows programming the output voltage anywhere between 1.24V and the 16V maximum operating rating of the family. Two resistors are used. Resistors can be quite large, up to 1M, because of the very high input impedance and low bias current of the sense comparator: The resistor values are calculated by:
V R1 = R2 OUT - 1 1.240
Where VO is the desired output voltage. Figure 2 shows component definition. Applications with widely varying load currents may scale the resistors to draw the minimum load current required for proper operation (see above). Power SOP-8 Thermal Characteristics One of the secrets of the MIC39101/2's performance is its power SO-8 package featuring half the thermal resistance of a standard SO-8 package. Lower thermal resistance means more output current or higher input voltage for a given package size. Lower thermal resistance is achieved by joining the four ground leads with the die attach paddle to create a singlepiece electrical and thermal conductor. This concept has been used by MOSFET manufacturers for years, proving very reliable and cost effective for the user. Thermal resistance consists of two main elements, JC (junction-to-case thermal resistance) and CA (case-to-ambient thermal resistance). See Figure 3. JC is the resistance from the die to the leads of the package. CA is the resistance from the leads to the ambient air and it includes CS (case-to-
SOP-8
JA JC CA
AMBIENT
ground plane heat sink area
printed circuit board
Figure 3. Thermal Resistance Figure 4 shows copper area versus power dissipation with each trace corresponding to a different temperature rise above ambient. From these curves, the minimum area of copper necessary for the part to operate safely can be determined. The maximum allowable temperature rise must be calculated to determine operation along which curve.
900
900
COPPER AREA (mm2)
700 600 500 400 300 200 100 0 0
COPPER AREA (mm2)
TJA =
40C 50C 55C 65C 75C 85C
800
100C
800 700 600 500 400 300 200 100 0 0
T = 125C J TA = 85C 50C 25C
0.25 0.50 0.75 1.00 1.25 1.50 POWER DISSIPATION (W)
0.25 0.50 0.75 1.00 1.25 1.50 POWER DISSIPATION (W)
Figure 4. Copper Area vs. Power-SOP Power Dissipation
Figure 5. Copper Area vs. Power-SOP Power Dissipation
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T = TJ(max) - TA(max) TJ(max) = 125C TA(max) = maximum ambient operating temperature For example, the maximum ambient temperature is 50C, the T is determined as follows: T = 125C - 50C T = 75C Using Figure 4, the minimum amount of required copper can be determined based on the required power dissipation. Power dissipation in a linear regulator is calculated as follows: PD = (VIN - VOUT) IOUT + VIN * IGND If we use a 2.5V output device and a 3.3V input at an output current of 1A, then our power dissipation is as follows: PD = (3.3V - 2.5V) x 1A + 3.3V x 11mA PD = 800mW + 36mW PD = 836mW From Figure 4, the minimum amount of copper required to operate this application at a T of 75C is 160mm2.
Quick Method
Micrel
Determine the power dissipation requirements for the design along with the maximum ambient temperature at which the device will be operated. Refer to Figure 5, which shows safe operating curves for three different ambient temperatures: 25C, 50C and 85C. From these curves, the minimum amount of copper can be determined by knowing the maximum power dissipation required. If the maximum ambient temperature is 50C and the power dissipation is as above, 836mW, the curve in Figure 5 shows that the required area of copper is 160mm2. The JA of this package is ideally 63C/W, but it will vary depending upon the availability of copper ground plane to which it is attached.
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MIC39100/39101/39102
MIC39100/39101/39102
Micrel
Package Information
3.15 (0.124) 2.90 (0.114)
C L
C L
3.71 (0.146) 7.49 (0.295) 3.30 (0.130) 6.71 (0.264)
2.41 (0.095) 2.21 (0.087) 4.7 (0.185) 4.5 (0.177) 6.70 (0.264) 6.30 (0.248)
1.04 (0.041) 0.85 (0.033) DIMENSIONS: MM (INCH) 1.70 (0.067) 16 1.52 (0.060) 10 10 MAX
0.10 (0.004) 0.02 (0.0008)
0.38 (0.015) 0.25 (0.010)
0.84 (0.033) 0.64 (0.025) 0.91 (0.036) MIN
SOT-223 (S)
0.026 (0.65) MAX)
PIN 1
0.157 (3.99) 0.150 (3.81)
DIMENSIONS: INCHES (MM)
0.050 (1.27) TYP
0.020 (0.51) 0.013 (0.33) 0.0098 (0.249) 0.0040 (0.102) 0-8 SEATING PLANE 45 0.010 (0.25) 0.007 (0.18)
0.064 (1.63) 0.045 (1.14)
0.197 (5.0) 0.189 (4.8)
0.050 (1.27) 0.016 (0.40) 0.244 (6.20) 0.228 (5.79)
8-Lead SOP (M)
MICREL INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 944-0970
WEB
http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. (c) 2000 Micrel Incorporated
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