MIC37139 View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
MIC37139 Datasheet PDF : 10 Pages
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Micrel, Inc.
MIC37139
Absolute Maximum Ratings(1)
Supply Voltage (VIN) ......................................................6.5V
Enable Input Voltage (VEN)............................................6.5V
Power Dissipation .....................................Internally Limited
Junction Temperature (TJ) ..................–40°C ≤ TJ ≤ +125°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
Storage Temperature (Ts) ...................–65°C ≤ TJ ≤ +150°C
ESD Rating(3)
Operating Ratings(2)
Supply Voltage (VIN)....................................... 2.25V to 6.0V
Enable Input Voltage (VEN).................................. 0V to 6.0V
Junction Temperature (TJ) ..................–40°C ≤ TJ ≤ +125°C
Maximum Power Dissipation(4)
Package Thermal Resistance
SOT-223 (θJC) ....................................................50°C/W
Electrical Characteristics(5)
TA = 25°C with VIN = VOUT + 1V; VEN = VIN; bold values indicate –40°C< TJ < +125°C, unless noted.
Parameter
Condition
Min Typ Max Units
Output Voltage Accuracy
IL = 10mA
–1
+1
%
10mA < IOUT < IL(max), VOUT + 1 ≤ VIN ≤ 6V
–2
+2
%
Output Voltage Line Regulation
VIN = VOUT +1.0V to 6.0V
0.06 0.5
%
Output Voltage Load Regulation
VIN – VOUT; Dropout Voltage(6)
IL = 10mA to 1.5A
IL = 750mA
0.2
1
%
350
mV
Ground Pin Current(7)
IL = 1.5A
IL = 1.5A
500
mV
17
30
mA
Ground Pin Current in Shutdown VIL ≤ 0.5V, VIN = VOUT + 1V
1.0
µA
Current Limit
VOUT = 0
2.25
4
A
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended.
4. PD(max) = (TJ(max) – TA) ÷ θJA, where θJA, depends upon the printed circuit layout. See “Applications Information.â€
5. Specification for packaged product only.
6. VDO = VIN – VOUT when VOUT decreased to 98% of its nominal output voltage with VIN = VOUT +1V. For output voltages below 1.75V, dropout voltage
specification does not apply due to a minimum input operating voltage of 2.25V.
7. IGND is the quiescent current. IIN = IGND + IOUT.
November 2009
3
M9999-110209
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