LM317:3 端子 1.5A 可调节正电压稳压器
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?Single output LDO, 800mA internal current limit thermal overload protection

The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%. It includes current limiting, thermal overload protection, and safe operating area protection. Overload protection remains functional even if the ADJUST terminal is disconnected.
产品特性
- Output Voltage Range Adjustable From 1.25 V to 37 V
- Output Current Greater Than 1.5 A
- Internal Short-Circuit Current Limiting
- Thermal Overload Protection
- Output Safe-Area Compensation
参数parametrics
参数 | LM317 |
---|
Iout
(Max)
(A) | 1.5 |
Output Options | Adjustable Output Programmable Output |
Vin
(Min)
(V) | 3 |
Vin
(Max)
(V) | 40 |
Vout
(Min)
(V) | 1.25 |
Vout
(Max)
(V) | 37 |
Iq
(Typ)
(mA) | 3.5 |
Vdo
(Typ)
(mV) | 2000 |
Accuracy
(%) | 4 |
Noise
(uVrms) | 1110 |
PSRR @ 100KHz
(dB) | 38 |
Output Capacitor Type | Non-Ceramic |
Rating | Catalog |
Operating Temperature Range
(C) | 0 to 125 |
Pin/Package | 2PFM 3DDPAK/TO-263 3TO-220 4SOT-223 |
Approx. Price (US$) | 0.18 | 1ku |
数据表?(1)
应用手册?(24)
用户指南?(1)
选择与解决方案指南?(9)
模型?(3)
设计套件与评估板?(1)
开发工具?(1)
订购型号
型号 | 试生产 / 生产材料 | 状态 | 替换日期 | 温度(oC) | 价格(美金) | Quantity | 封装 | 引脚 | 器件标记 | 封装数量 | 载体 |
---|
LM317DCY | 生产 | ACTIVE | | 0 to 125 | 0.28 | 1ku | SOT-223?(DCY) | L3 | 80 | TUBE |
LM317DCYG3 | 生产 | ACTIVE | | 0 to 125 | 0.28 | 1ku | SOT-223?(DCY) | L3 | 80 | TUBE |
LM317DCYR | 生产 | ACTIVE | | 0 to 125 | 0.24 | 1ku | SOT-223?(DCY) | L3 | 2500 | LARGE T&R |
LM317DCYRG3 | 生产 | ACTIVE | | 0 to 125 | 0.24 | 1ku | SOT-223?(DCY) | L3 | 2500 | LARGE T&R |
LM317KC | 生产 | OBSOLETE | LM317KCS | 0 to 125 | 联系BDTIC | TO-220?(KC) | LM317 | |
LM317KCE3 | 生产 | OBSOLETE | | 0 to 125 | 联系BDTIC | TO-220?(KC) | LM317 | |
LM317KCS | 生产 | ACTIVE | | 0 to 125 | 0.24 | 1ku | TO-220?(KCS) | LM317 | 50 | TUBE |
LM317KCSE3 | 生产 | ACTIVE | | 0 to 125 | 0.24 | 1ku | TO-220?(KCS) | LM317 | 50 | TUBE |
LM317KCT | 生产 | ACTIVE | | 0 to 125 | 0.18 | 1ku | TO-220?(KCT) | LM317 | 50 | TUBE |
LM317KTER | 生产 | OBSOLETE | | 0 to 125 | 联系BDTIC | (KTE) | 3 | LM317 | |
LM317KTTR | 生产 | ACTIVE | | 0 to 125 | 0.28 | 1ku | DDPAK/TO-263?(KTT) | LM317 | 500 | LARGE T&R |
LM317KTTRG3 | 生产 | ACTIVE | | 0 to 125 | 0.28 | 1ku | DDPAK/TO-263?(KTT) | LM317 | 500 | LARGE T&R |