Micrel, Inc.
MIC37300/01/02/03
Absolute Maximum Ratings(2)
Supply Voltage (VIN) ...................................................... 6.5V
Enable Input Voltage (VEN)(4) ......................................... 6.5V
Power Dissipation (PD)(4) ........................... Internally Limited
Junction Temperature (TJ) ..................–40°C ≤ TJ ≤ +125°C
Storage Temperature (TS)...................–65°C ≤ TJ ≤ +150°C
Lead Temperature (soldering, 10s)............................ 260°C
ESD Rating(5).................................................................. 2kV
Operating Ratings(3)
Supply Voltage (VIN) ................................ 2.25V to 6.0V
Enable Input Voltage (VEN) ........................... 0V to 6.0V
Junction Temperature (TJ) ........... –40°C ≤ TJ ≤ +125°C
Package Thermal Resistance
S-Pak (θJC)................................................5.5°C/W
TO-263-5 (θJC) ..........................................6.3°C/W
ePad SOIC-8 (θJC) .....................................16°C/W
3mm × 3mm DFN (θJC) ..............................29°C/W
Electrical Characteristics(6)
TA = 25°C with VIN = VOUT + 1V; VEN = VIN; IL = 10mA; bold values indicate –40°C < TJ < +125°C, unless noted.
Parameter
Condition
Min.
Typ.
Max.
Units
Output Voltage Accuracy
Output Voltage Line Regulation
Output Voltage Load Regulation
VIN – VOUT Dropout Voltage(7)
IL = 10mA
10mA < IOUT < IL(max), VOUT + 1 ≤ VIN ≤ 6V
VIN = VOUT + 1.0V to 6.0V; IL = 10mA
IL = 10mA to 3A
IL = 1.5A
(ePad SOIC-8, DFN)
IL = 3A
(ePad SOIC-8, DFN)
-1
+1
%
-2
+2
%
0.02
0.5
%
0.2
1
%
175
350
mV
400
300
500
mV
550
Ground Pin Current(8)
IL = 3A
27
40
mA
50
mA
Ground Pin Current in Shutdown VIL ≤ 0.5V, VIN = VOUT +1V
1.0
5
µA
Current Limit
VOUT = 0V
4.75
6.5
A
Start-Up Time
VEN = VIN, IOUT = 10mA, COUT = 47µF
170
500
µs
Notes:
2. Exceeding the absolute maximum rating may damage the device.
3. The device is not guaranteed to function outside its operating rating.
4. PD(max) = (TJ(max) – TA)/θJA, where θJA, depends upon the printed circuit layout. See “Application Information.”
5. Devices are ESD sensitive. Handling precautions recommended.
6. Specification for packaged product only.
7. VDO = VIN – VOUT when VOUT decreases to 98% of its nominal output voltage with VIN = VOUT + 1V. For output voltages below 1.75, dropout voltage
specification does not apply due to a minimum input operating voltage of 2.25V.
8. IGND is the quiescent current. IIN = IGND + IOUT.
February 24, 2015
4
Revision 2.0