参数资料
| 型号： | LP2951CMX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .1A 8-SOP |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.26 V ~ 28 V |
| 输入电压： | 最高 30V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 100mA |
| 电流 - 限制（最小）： | 110mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1221 (CN2011-ZH PDF) |
| 其它名称： | LP2951CMXFSDKR |
LP2951
Electrical Characteristics
(Refer to the test circuit, Ta = 25 ° C, unless otherwise specified, )
Parameter
Symbol
Conditions
Min.
Typ. Max.
Unit
ALL VOLTAGE OPTIONS
Output Voltage Temperature Coefficient
Line Regulation (Note2)
Load Regulation (Note2)
Dropout Voltage
Ground Current
Current Limit
Δ V / Δ T
Δ V
Δ V
V D
I G
I CL
(Note1)
(Vo + 1)V ≤ V IN ≤ 28V
I L = 50mA
100uA ≤ I L ≤ 100mA
I L = 100uA
I L = 100mA
I L = 100uA
I L = 100mA
V O = 0V
-
-
-
-
-
-
-
110
50
-
-
-
-
-
-
165
-
0.4
0.3
150
600
140
7
220
ppm/ ° C
%
%
mV
mV
uA
mA
mA
8-PIN VERSIONS ONLY
Reference Voltage
V REF
V REF
V IN = (Vo + 1)V, I L = 100uA
(Note3)
1.235 1.26 1.285
1.225 1.26 1.295
V
V
ERROR COMPARATOR
Output Low Voltage
High Threshold Voltage
Low Threshold Voltage
Hysteresis
V OL
V TH
V TL
V HYS
V IN = (Vo - 0.5)V, I OL =400uA
(Note4)
(Note4)
(Note4)
-
25
-
-
150
60
75
15
400
-
140
-
mV
mV
mV
mV
SHUTDOWN INPUT
Shutdown Threshold Range
Shutdown Input Current
V SD
I SD
(Note5)
V SD = 2.4V
V SD = 28V
0.6
-
-
1.3
30
450
2.0
100
750
V
uA
uA
Note :
1. Output or reference voltage temperature coefficient is defined as the worst case voltage change divided by the total
temperature range.
2. Regulation is measured at constant junction temperature , using pulse testing with a low duty cycle.
3. V ref ≤ V out ≤ (V in - 1V), 2.5V ≤ V in ≤ 28V, 100uA ≤ I L ≤ 100mA, T A ≤ T AMAX .
4. Threshold and hysteresis are expressed in terms of voltage differential at the Feedback terminal below the normal
reference . To express these thresholds in terms of output voltage change , multiply by the error amplifier gain
= VO / VREF = (R1 + R2) / R2 .
5. Vshutdown ≤ 0.6 V , V OUT =ON , Vshutdown ≥ 2.0 V, V OUT = OFF.
3
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