MIC2937 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – 750mA Low-Dropout Voltage Regulator

MIC2937A/29371/29372
Absolute Maximum Ratings
Power Dissipation (Note 1)...............................................Internally Limited
Lead Temperature (Soldering, 5 seconds).........................................260°C
Storage Temperature Range.............................................–65°C to +150°C
Operating Junction Temperature Range ..........................–40°C to +125°C
TO-220 θ_JC .....................................................................................2.5°C/W
TO-263 θ_JC .....................................................................................2.5°C/W
Input Supply Voltage..............................................................–20V to +60V
Micrel, Inc.
Operating Input Supply Voltage..................................................2V^† to 26V
Adjust Input Voltage (Notes 9 and 10).................................–1.5V to +26V
Shutdown Input Voltage .......................................................–0.3V to +30V
Error Comparator Output Voltage.........................................–0.3V to +30V
† _{Across the full operating temperature, the minimum input voltage range for}
full output current is 4.3V to 26V. Output will remain in-regulation at lower
output voltages and low current loads down to an input of 2V at 25°C.
Electrical Characteristics
Limits in standard typeface are for T_J = 25°C and limits in boldface apply over the full operating temperature range. Unless other-
wise specified, V_IN = V_OUT + 1V, I_L = 5mA, C_L = 10µF. The MIC29372 are programmed for a 5V output voltage, and V_SHUTDOWN ≤ 0.6V
(MIC29371-xx and MIC29372 only).
Symbol
V_O
ΔV_O
ΔT
ΔV_O
V_O
ΔV_O
V_O
V_IN – V_O
I_GND
I_GNDDO
I_LIMIT
ΔV_O
ΔP_D
e_n
Parameter
Output Voltage
Accuracy
Output Voltage
Temperature Coef.
Line Regulation
Load Regulation
Dropout Voltage
(Note 4)
Ground Pin Current
(Note 5)
Ground Pin
Current at Dropout
(Note 5)
Current Limit
Thermal Regulation
Conditions
Variation from factory trimmed V_OUT
5mA ≤ I_L ≤ 500mA
MIC2937A-12 and 29371-12 only:
5mA ≤ I_L ≤ 500mA
(Note 2)
Output voltage > 10V
V_IN = V_OUT + 1V to 26V
I_L = 5 to 500mA
(Note 3)
I_L = 5mA
I_L = 100mA
I_L = 500mA
I_L = 750mA
Output voltage > 10V
Output voltage > 10V
I_L = 5mA
I_L = 100mA
I_L = 500mA
I_L = 750mA
V_IN = 0.5V less than designed V_OUT
(V_OUT ≥ 3.3V)
I_O = 5mA
V_OUT = 0V
(Note 6)
(Note 7)
Output Noise
Voltage
(10Hz to 100kHz)
I_L = 100mA
C_L = 10µF
C_L = 100µF
Min
Typical
–1
–2
–2.5
–1.5
–3
–4
20
80
0.03
0.04
80
200
240
300
420
370
160
1
8
15
200
Max
Units
1
%
2
2.5
1.5
3
4
100 ppm/°C
350
0.10
%
0.40
0.16
%
0.30
150
mV
180
600
750
250
µA
300
2.5
mA
3
13
16
25
500
µA
1.1
1.5
A
2
0.05
0.2
%/W
400
µV RMS
260
May 2006
3
MIC2937A/29371/29372