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MIC37100_07 Datasheet, PDF (4/15 Pages) Micrel Semiconductor – 1A Low-Voltage μCap LDO
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Micrel, Inc.
MIC37100/37101/37102
Absolute Maximum Ratings(1)
Supply Voltage (VIN) .......................................... 0V to +6.5V
Enable Voltage (VEN)...................................................+6.5V
Lead Temperature (soldering, 5 sec.)........................ 260°C
Storage Temperature (Ts) .........................–65°C to +150°C
ESD Rating(3)
Operating Ratings(2)
Supply Voltage (VIN)...................................... +2.25V to +6V
Enable Voltage (VEN)............................................ 0V to +6V
Maximum Power Dissipation (PD(max))(4)
Junction Temperature (TJ) ........................ –40°C to +125°C
Package Thermal Resistance
SOT-223 (θJC) ....................................................15°C/W
SOIC-8 (θJC).......................................................20°C/W
S-PAK-5 (θJC).......................................................2°C/W
Electrical Characteristics
VIN = VOUT + 1V; VEN = 2.25V; TJ = 25°C, bold values indicate –40°C< TJ < +125°C, unless noted.
Symbol Parameter
Condition
Min Typ
VOUT
Output Voltage
10mA
–1
10mA ≤ IOUT ≤ 1A, VOUT + 1V ≤ VIN ≤ 6V
–2
Line Regulation
IOUT = 10mA, VOUT + 1V ≤ VIN ≤ 6V
0.06
Load Regulation
VIN = VOUT + 1V, 10mA ≤ IOUT ≤ 1A
0.2
∆VOUT/∆T Output Voltage Temp. Coefficient(6)
40
VDO
Dropout Voltage(6)
IOUT = 100mA, ∆VOUT = –1%
125
IOUT = 500mA, ∆VOUT = –1%
210
IOUT = 750mA, ∆VOUT = –1%
250
IOUT = 1A, ∆VOUT = –1%
280
IGND
Ground Current(7)
IOUT = 100mA, VIN = VOUT + 1V
650
IOUT = 500mA, VIN = VOUT + 1V
3.5
IOUT = 750mA, VIN = VOUT + 1V
6.7
IOUT = 1A, VIN = VOUT + 1V
11
IOUT(lim)
Current Limit
VOUT = 0V, VIN = VOUT + 1V
1.6
Enable Input
VEN
Enable Input Voltage
logic low (off)
logic high (on)
2.25
IEN
Enable Input Current
VEN = 2.25V
VEN = 0.8V
1
10
Flag Output
IFLG(leak)
Output Leakage Current
VOH = 6V
0.01
VFLG(do)
VFLG
Output Low Voltage
Low Threshold
High Threshold
Hysteresis
MIC37102 Only
Reference Voltage
Adjust Pin Bias Current
VIN = 2.250V, IOL, = 250µA
% of VOUT
% of VOUT
210
93
1
1.228
1.215
1.240
40
Max
1
2
0.5
1
200
350
400
500
25
2.5
0.8
30
2
4
1
2
500
99.2
1.252
1.265
80
120
Units
%
%
%
%
pm/°C
mV
mV
mV
mV
µA
mA
mA
mA
A
V
V
µA
µA
µA
µA
µA
mV
%
%
%
V
V
nA
nA
September 2007
4
M9999-090607
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