LM317MDTX/NOPB Power Management ICs - PMIC by Texas Instruments

VOLTAGE REGULATOR ADJ 1.2-37V TO-252

Status: Unknown
Series: -
RoHS: Unknown
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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.

Prices starting from US$0.45


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Logo for Texas Instruments Texas Instruments US$0.45
3,475
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Logo for Chip One Stop Chip One Stop US$1.03
2,500
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Logo for Newark Electronics Newark Electronics US$1.67
-
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Logo for element14 element14 US$0.68
-
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Logo for Farnell Farnell US$0.66
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Specifications

Fixed Output Voltage Nom. -
Adjustable Output Voltage Min 1.2V
Adjustable Output Voltage Max 37V
Input Voltage Min 3V
Input Voltage Max 40V
Product Range -
Output Current 1.5A
Output Type Adjustable
Linear Regulator Case Style TO-252
No. of Pins 3Pins
Operating Temperature Min 0°C
Operating Temperature Max 125°C
Automotive Qualification Standard -
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
No. of Outputs 1Outputs
Output Voltage Max 37V
Output Voltage Min 1.2V
Primary Input Voltage 40V

Alternative Descriptions

LM317MDTX/NOPB, LDORegulatorPos | RS
1.5-A, 40-V, adjustable linear voltage regulator | Texas Instruments
Voltage Regulator, Adj, 1.2-37V, To-252 | Newark Electronics
VOLTAGE REGULATOR, ADJ, 1.2-37V, TO-252 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM317MDTX/NOPB?

Additional datasheets, footprints and schematics for LM317MDTX/NOPB are listed on our Part Details page. You can also find images and similar parts to LM317MDTX/NOPB on this page.

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What category does LM317MDTX/NOPB fall under?

The LM317MDTX/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 LM317MDTX/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 LM317MDTX/NOPB RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including RS, Texas Instruments, Chip One Stop, Newark Electronics and element14 have stock available or on a lead time for LM317MDTX/NOPB.

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