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参数资料
| 型号： | MIC2937A-12BT |
| 厂商： | Micrel Inc |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 12V .75A TO-220-3 |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 12V |
| 输入电压： | 最高 26V |
| 电压 - 压降（标准）： | 0.37V @ 750mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 750mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-3 |
| 供应商设备封装： | TO-220-3 |
| 包装： | 管件 |
Across the full operating temperature, the minimum input voltage range for
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
?
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 speci?ed, 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
Parameter
Output Voltage
Accuracy
Output Voltage
Temperature Coef.
Line Regulation
Load Regulation
Dropout Voltage
( Note 4 )
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
Min
–1
–2
–2.5
–1.5
–3
–4
Typical
20
80
0.03
0.04
80
Max
1
2
2.5
1.5
3
4
100
350
0.10
0.40
0.16
0.30
150
180
Units
%
ppm/°C
%
%
mV
I L = 100mA
I L = 500mA
Output voltage > 10V
Output voltage > 10V
200
240
300
420
I L = 750mA
370
600
750
I GND
Ground Pin Current
( Note 5 )
I L = 5mA
I L = 100mA
160
1
250
300
2.5
3
μA
mA
I L = 500mA
8
13
16
I GNDDO
I LIMIT
ΔV O
ΔP D
e n
Ground Pin
Current at Dropout
( Note 5 )
Current Limit
Thermal Regulation
Output Noise
Voltage
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 )
C L = 10μF
15
200
1.1
0.05
400
25
500
1.5
2
0.2
μA
A
%/W
μV RMS
May 2006
(10Hz to 100kHz)
I L = 100mA
C L = 100μF
3
260
MIC2937A/29371/29372
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