- 您现在的位置：买卖IC网 > PDF目录179184 > LP2951 (ON SEMICONDUCTOR) 100 mA, Low Power Low Dropout Voltage Regulator(100mA,低功耗，低压差稳压器) PDF资料下载
参数资料
| 型号： | LP2951 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 线性稳压 |
| 英文描述： | 100 mA, Low Power Low Dropout Voltage Regulator(100mA,低功耗，低压差稳压器) |
| 中文描述： | 100毫安，低功耗，低压差稳压器（100mA的，低功耗，低压差稳压器） |
| 文件页数： | 4/24页 |
| 文件大小： | 244K |
| 代理商： | LP2951 |
LP2950, LP2951, NCV2951
http://onsemi.com
12
330 k
Figure 25. Regulator with Early Warning and Auxiliary Output
+Vin
Memory
V+
1.0
mF
20
5
3
Error
SD
GND
FB
47
6
VO T
SNS
2
Vout
Vin
8
1
LP2951CN
#1
1.0
mF
5
3
Error
SD
GND
FB
47
6
VO T
SNS
2
Vout
Vin
8
1
LP2951CN
#2
NC
Reset
VDD
mP
Early Warning
All diodes are 1N4148.
Early Warning flag on low input voltage.
Main output latches off at lower input voltages.
Battery backup on auxiliary output.
Operation: Regulator #1's Vout is programmed one
diode drop above 5.0 V. Its error flag becomes active
when Vin < 5.7 V. When Vin drops below 5.3 V, the
error flag of regulator #2 becomes active and via Q1
latches the main output “off”. When Vin again exceeds
5.7 V, regulator #1 is back in regulation and the early
warning signal rises, unlatching regulator #2 via D3.
D4
2.7 M
Q1
2N3906
D2
D1
D3
27 k
3.6 V
NiCad
Main
Output
Figure 26. 2.0 A Low Dropout Regulator
+Vin
Vout @ 2.0 A
100
mF
NC
R2
R1
470
5
3
Error
SD
GND FB
47
6
VO T
SNS
2
Vout
Vin
8
1
LP2951CN
MJE2955
4.7 M
Error
Flag
Vout = 1.25V (1.0 + R1/R2)
For 5.0 V output, use internal resistors. Wire Pin 6 to 7,
and wire Pin 2 to +Vout Bus.
20 k
47
4.7
mF
Tant
0.05
680
0.033
mF
2N3906
10 k
Current Limit
Section
220
1000
mF
.33
mF
.01
mF
2N3906
相关PDF资料 |
PDF描述 |
|---|---|
| LP2S3TBNN | PUSHBUTTON SWITCH, SPST, MOMENTARY, 0.005A, 5VDC, THROUGH HOLE-STRAIGHT |
| LP2S2GRYREDN | PUSHBUTTON SWITCH, SPST, MOMENTARY, 0.005A, 5VDC, THROUGH HOLE-STRAIGHT |
| LP2S3WHTNN | PUSHBUTTON SWITCH, SPST, MOMENTARY, 0.005A, 5VDC, THROUGH HOLE-STRAIGHT |
| LP2S1BLKNN | PUSHBUTTON SWITCH, SPST, MOMENTARY, 0.005A, 5VDC, THROUGH HOLE-STRAIGHT |
| LP2S1TBNN | PUSHBUTTON SWITCH, SPST, MOMENTARY, 0.005A, 5VDC, THROUGH HOLE-STRAIGHT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LP2951-01AJ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Fixed & Adjustable Voltage Regulator |
| LP2951-02BJ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Fixed & Adjustable Voltage Regulator |
| LP295102BM | 制造商:Micrel Inc 功能描述: |
| LP2951-02BM | 功能描述:IC REG LDO ADJ .1A 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.8V 输入电压:最高 16V 电压 - 压降（标准）:0.3V @ 80mA 稳压器数量:1 电流 - 输出:80mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| LP2951-02BM TR | 功能描述:IC REG LDO ADJ .1A 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.8V 输入电压:最高 16V 电压 - 压降（标准）:0.3V @ 80mA 稳压器数量:1 电流 - 输出:80mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
发布紧急采购，3分钟左右您将得到回复。