LM317: 100-mA Adjustable Voltage Regulator

LM317: 100-mA Adjustable Voltage Regulator

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.

Features

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

Applications

Automotive LED Lighting
Battery Chargers
Post Regulation for Switching Supplies
Constant-Current Regulators
Microprocessor Supplies

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	FXO-LC735RGB-156.25	IDT, Integrated Device Technology Inc	XTAL OSC XO 156.2500MHZ LVDS SMD	56305 Min : 1	-	Detail
	DSC1101NI5-100.0000	Microchip Technology	MEMS OSC XO 100.0000MHZ CMOS SMD	72651 Min : 1	-	Detail
	DSC1033DI1-050.0000T	Microchip Technology	MEMS OSC XO 50.0000MHZ CMOS SMD	50899 Min : 1	-	Detail
	AMPMDGB-4.0000T3	Abracon Corporation	MEMS OSC XO 4.0000MHZ CMOS SMD	76001 Min : 1	-	Detail
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