LM317L-N
- Adjustable Output Down to 1.2 V
- 100-mA Output Current
- Capable of Handling up to 40V VIN
- Line Regulation Typically 0.01% /V
- Load Regulation Typically 0.1% /A
- No Output Capacitor Required (†)
- Current Limit Constant With Temperature
- Eliminates the Need to Stock Many Voltages
- Standard 3-Lead Transistor Package
- 80-dB Ripple Rejection
- Available in 3-Pin TO-92, 8-Pin SOIC, or 6-pin DSBGA Packages
- Output is Short-Circuit Protected
- See AN-1112 (SNVA009) for DSBGA Considerations
The LM317L-N is an adjustable positive voltage regulator capable of supplying 100 mA over a 1.2-V to 37-V output range. The LM317L-N is easy to use and requires only two external resistors to set the output voltage. Both line and load regulation are better than standard fixed regulators. The LM317L-N is available packaged in a standard, easy-to-use
TO-92 transistor package.
The LM317L-N offers full overload protection. Included on the chip are current limit, thermal overload protection, and safe area protection. Normally, no capacitors are required unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is required.
The LM317L-N uses floating topology and sees only the input-to-output differential voltage, therefore supplies of several hundred volts can be regulated, provided the maximum input-to-output differential is not exceeded. The device makes a simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM317L-N can be used as a precision current regulator.
The LM317L-N is available in a standard 3-pin TO-92 transistor package, the 8-pin SOIC package, and 6-pin DSBGA package. The LM317L-N is rated for operation over a −40°C to 125°C range.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM317L-N Wide VIN 100-mA Adjustable Voltage Regulator datasheet (Rev. L) | PDF | HTML | 2018年 1月 19日 |
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9日 | |
| Application note | Linear power for automated industrial systems | 2015年 1月 9日 | ||
| Application note | AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) | 2013年 5月 6日 | ||
| Application note | AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) | 2013年 5月 5日 | ||
| More literature | Die D/S LM317L MDA 3-Terminal Adj Regulator | 2012年 9月 20日 | ||
| Application note | TO-92 Packing Options / Ordering Instructions (Rev. A) | 2010年 6月 23日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| DSBGA (YPB) | 6 | 檢視選項 |
| SOIC (D) | 8 | 檢視選項 |
| TO-92 (LP) | 3 | 檢視選項 |
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