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Details for LM317SX/NOPB by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
REGULATOR LDO ADJ 1.5A TO-263-3 REEL
LM317SX/NOPB image

LM317SX/NOPB by Texas Instruments

REGULATOR LDO ADJ 1.5A TO-263-3 REEL
Features
1.5-A Output Current
80-dB Ripple Rejection
Adjustable Output Down to 1.25 V
Current Limit Constant With Temperature
Short-Circuit Protected Output
Typ. 0.01%/V Line Regulation
Typ. 0.1% Load Regulation
u221255u00b0C to 150u00b0C Operating Temperature Range
Part Information
LM317SX/NOPB image
RoHS Compliant
Description
The LM117 and LM317-N series of adjustable 3-pin positive voltage regulators are capable of supplying in excess of 1.5 A over a 1.25-V to 37-V output range and a wide temperature range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. The LM117 and LM317-N offer full overload protection such as current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios that are difficult to achieve with standard 3-terminal regulators. Because the regulator is floating and detects only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not exceeded. That is, avoid short-circuiting the output. By connecting a fixed resistor between the adjustment pin and output, the LM117 and LM317-N can be also used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground, which programs the output to 1.25 V where most loads draw little current. For applications requiring greater output current, see data sheets for LM150 series (3 A), SNVS772, and LM138 series (5 A), SNVS771. For the negative complement, see LM137 (SNVS778) series data sheet.
Specifications
Output Type:
Adjustable
Input Voltage Min:
4.2V
Input Voltage Max:
40V
Fixed Output Voltage Nom.:
-
Adjustable Output Voltage Min:
1.2V
Adjustable Output Voltage Max:
37V
Output Current:
1.5A
Linear Regulator Case Style:
TO-263
No. of Pins:
3Pins
Operating Temperature Min:
0°C
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (27-Jun-2018)
RoHS Phthalates Compliant:
Yes
Output Voltage Max:
37V
Output Voltage Min:
1.2V
Primary Input Voltage:
40V
Alternate Descriptions
REGULATOR, LDO, ADJ, 1.5A, TO-263-3,REEL; Fixed Output Voltage Nom.:-; Adjustable Output Voltage Min:1.2V; Adjustable Output Voltage Max:37V; Input Voltage Min:4.2V; Input Voltage Max:40V; Product Range:-; Output Current:1.5A; OutputRoHS Compliant: Yes Newark Electronics
Standard Regulator Pos 1.2V to 37V 1.5A 4-Pin(3+Tab) TO-263 T/R Avnet America
Standard Regulator Pos 1.2V to 37V 1.5A 4-Pin(3+Tab) TO-263 T/R Avnet Europe