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参数资料
| 型号： | NCP1117DT18G |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1.0 A Low−Dropout Positive Fixed and Adjustable Voltage Regulators |
| 中文描述： | 1.8 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PSSO2 |
| 封装： | LEAD FREE, DPAK-3 |
| 文件页数： | 10/17页 |
| 文件大小： | 178K |
| 代理商： | NCP1117DT18G |
NCP1117, NCV1117
http://onsemi.com
10
Figure 24. Constant Current Regulator
Figure 25. Slow TurnOn Regulator
Figure 26. Regulator with Shutdown
Figure 27. Digitally Controlled Regulator
Figure 28. Battery BackedUp Power Supply
Figure 29. Adjusting Output of Fixed
Voltage Regulators
The 50 resistor that is in series with the ground pin of the
upper regulator level shifts its output 300 mV higher than the
lower regulator. This keeps the lower regulator off until the
input source is removed.
Resistor R2 sets the maximum output voltage. Each
transistor reduces the output voltage when turned on.
1
2
Constant Current
Output
3
Input
NCP1117
XTA
+
+
10
F
Iout
Vref
R
Iadj
10
F
R
1
2
Output
3
Input
NCP1117
XTA
+
+
10
F
10
F
1N4001
R2
R1
10
F
50 k
2N2907
1
2
Output
3
Input
NCP1117
XTA
+
+
10
F
10
F
120
2N2222
360
1.0 k
1.0 k
Output Control
On
Off
1
2
Output
3
Input
NCP1117
XTA
+
+
10
F
10
F
R1
2N2222
R2
1
50
2
Output
3
Input
NCP1117
XT50
+
+
10
F
10
F
+
R
CHG
1
NCP1117
XT50
+
10
F
6.6 V
5.3 V AC Line
5.0 V Battery
1
2
Output
3
Input
NCP1117
XT50
+
+
10
F
+
10
F
10
F
2.0 k
5.0 V to
12 V
Vout(Off)
Vref
Output Voltage Control
2
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1117DT18G | 制造商:ON Semiconductor 功能描述:VOLTAGE REG IC |
| NCP1117DT18RK | 功能描述:低压差稳压器 - LDO 1.8V 1A Positive RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP1117DT18RKG | 功能描述:低压差稳压器 - LDO 1.8V 1A Positive RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP1117DT18T5 | 功能描述:低压差稳压器 - LDO 1.8V 1A Positive RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP1117DT18T5G | 功能描述:低压差稳压器 - LDO 1.8V 1A Positive RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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