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Texas Instruments LM317LILPE3 — Power Management (PMIC / Gate Driver)

LM317LILPE3 Adjustable Linear Regulator, 100 mA, TO-92-3

MPNLM317LILPE3
Obsolete

Texas Instruments LM317LILPE3, adjustable positive voltage regulator, 100 mA output, 38 V input max, 32 V output max, PSRR 80dB ~ 65dB at 120Hz, TO-92-3 through-hole package, -40°C to 125°C operating temperature.

Texas Instruments LM317LILPE3 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM317LILPE3 specifications
ParameterValue
Output typeAdjustable
MountingThrough Hole
Voltage - input38V
Voltage - output32V
Voltage - output (Min (Fixed))1.2V
Output current100mA
Current - quiescent2.5 mA
Operating temperature-40°C~125°C
PSRR80dB ~ 65dB (120Hz)
PackageBulk
CaseTO-226-3, TO-92-3 (TO-226AA)
Protection featuresOver Current, Over Temperature, Short Circuit
Number of regulators1
Output configurationPositive

Product details

100 mA adjustable regulator — the low-current LM317 tier

The LM317LILPE3 is a positive adjustable linear voltage regulator from the LM317 family, rated for 100 mA output current. The 2.5 mA quiescent current is typical for a three-terminal adjustable regulator at this current level.

PSRR and protection — why it still matters for legacy boards

Power-supply rejection ratio runs 80 dB at 120 Hz, dropping to 65 dB at the same frequency — that is the ripple rejection a designer gets on a full-wave rectified rail. Built-in over-current, over-temperature, and short-circuit protection mean the regulator handles fault conditions without external clamp diodes or crowbar circuits — a practical advantage in a repair or retrofit scenario where board space is already fixed.

Package and temperature grade — TO-92-3 in industrial environments

Housed in a TO-226-3 / TO-92-3 through-hole package, the LM317LILPE3 is a three-lead device with a plastic body.

Frequently asked questions

What is a replacement for LM317LILPE3?

No official successor or cross-reference is listed for the LM317LILPE3. A common field alternative is the LM317LZ, which is the same LM317L low-current family in a TO-92 package, but verify pin compatibility and output current rating against your specific load. The LM317LILPE3 is pin-compatible with other TO-92 LM317L variants, but without a manufacturer-issued cross-reference, any substitution should be validated against the original design's thermal and load requirements.