LM317AMDT/NOPB Power Management ICs - PMIC by Texas Instruments

ADJUSTABLE LINEAR REGULATOR 1.2V TO 37V

Status: Unknown
Series: -
RoHS: Unknown
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The LM317A adjustable 3-terminal, positive-voltage regulators are capable of supplying current in excess of 1.5 A over a 1.25-V to 37-V output range and provide 1% output-voltage accuracy. The LM317A device is available in an SOT-223 package, which makes it ideal for space-constrained applications that require high-performance regulation. The device is exceptionally easy to use and requires only two external resistors to set the output voltage. Both line regulation and load regulation are better achieved with the LM317A device than with standard fixed regulators. The LM317A offers full overload protection such as current limit, thermal-overload protection, and safearea 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 LM317A 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. Exceeding the maximum input-to-output deferential will result in short-circuiting the output. By connecting a fixed resistor between the adjustment pin and output, the LM317A 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 (3A), SNVS772, and LM138 series (5A), SNVS771. For the negative complement, see LM137 (SNVS778) series data sheet.

Prices starting from US$0.93


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Logo for Texas Instruments Texas Instruments US$0.93
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Logo for Transfer Multisort Elektronik Transfer Multisort Elektronik US$1.70
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Logo for Newark Electronics Newark Electronics US$3.06
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Logo for element14 element14 US$1.22
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Logo for Farnell Farnell US$2.71
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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

Alternative Descriptions

1.5-A, 40-V, adjustable linear voltage regulator with high-accuracy | Texas Instruments
LM317A adjustable 0.5A regulator TO-252 | RS
IC: voltage regulator | Transfer Multisort Elektronik
Adjustable Linear Regulator, 1.2V To 37V | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM317AMDT/NOPB?

Additional datasheets, footprints and schematics for LM317AMDT/NOPB are listed on our Part Details page. You can also find images and similar parts to LM317AMDT/NOPB on this page.

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What category does LM317AMDT/NOPB fall under?

The LM317AMDT/NOPB is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators.

Can I view similar or alternative parts?

You can view similar parts to LM317AMDT/NOPB when available in the Voltage Regulators range under the specifications section at the bottom of the details page.

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Is the LM317AMDT/NOPB RoHS compliant?

This part has not been flagged as RoHS Compliant.

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