MIC37112 데이터 시트보기 (PDF) - Micrel
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MIC37112 Datasheet PDF : 20 Pages
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Micrel, Inc.
MIC37110/MIC37112
MIC37120/MIC37122
Absolute Maximum Ratings(1)
Supply Voltage (VIN) ......................................... -0.3V to +6V
Enable Voltage (VEN)........................................-0.3V to +VIN
Adjust Pin Voltage (VADJ)..................................-0.3V to +VIN
Lead Temperature (soldering, 5s).............................. 260°C
Storage Temperature (Ts) ......................... –65°C to +150°C
ESD Rating(3)
HBM ......................................................................... 3kV
Operating Ratings(2)
Supply Voltage (VIN) ................................. +2.375V to +5.5V
Enable Voltage (VEN).............................................. 0V to VIN
Power Dissipation (PD(max))………………Internally Limited(4)
Junction Temperature (TJ) ........................ –40°C to +125°C
Package Thermal Resistance
SOT-223 (θJA) .................................................... 40°C/W
SOIC-8 (θJA) ....................................................... 63°C/W
Thin MLF-6 (θJA) .............................................. 100°C/W
Electrical Characteristics(5)
VIN = VEN = VOUT + 1V; IOUT = 10mA; CIN = 1.0 µF; COUT = 2.2µF; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Condition
Min. Typ. Max. Units
Power Supply Input
Input Voltage Range (VIN)
Input Supply UVLO
2.375
5.5
V
2.2
V
Input Supply UVLO Hysteresis
Ground Pin Current (6)
Ground Current in Shutdown
Reference
10mA ≤ IOUT ≤ 1.0A
VEN = VOUT = 0V
100
mV
250 500
µA
0.1
5
µA
Adjust Pin Voltage
Adjustable Option
0.975
1 1.025
V
Output Voltage Accuracy
Fixed Option
-2
+2
%
-2.5
+2.5
Load Regulation
IOUT = 10mA to 1A
-1.0
+1.0
%
Line Regulation
ADJ Pin Current
Current Limit
VIN = (VOUT + 1V) to 5.5V
VADJ = 1.0V
0.05 0.5
%
0.01
1
µA
Current Limit
Dropout Voltage
VOUT = 0V
1.2
2.3
4.0
A
Dropout Voltage (VIN − VOUT) (7)
IOUT = 1A
230 400
mV
Load Discharge Resistance (MIC37120/MIC37122)
Load Discharge Resistance
Enable Input
VEN = 0V; VIN = 3.6V; IOUT = 3mA
30
Ω
Enable Logic Level High
1.2
0.75
V
Enable Logic Level Low
0.65 0.25
V
EN Hysteresis
EN Pin Current
VEN = 0.2V (Regulator Shutdown)
VIN = VEN = 3.6V (Regulator Enabled)
100
mV
0.1
1
µA
0.1
1
December 2012
4
M9999-121312-A
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