component

HT317LRHZ

Public Made by Adom

by adom

HTCSEMI Linear Voltage Regulators (LDO), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HT317LRHZ

HTCSEMI · Linear Voltage Regulators (LDO) · SOT-89

HT317LRHZ from HTCSEMI, in a SOT-89. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Adjust passive Adjustment terminal where the R1/R2 divider sets the output (Vout = 1.25 V (1 + R2/R1) + IAdj·R2), with IAdj controlled to less than 100 µA.
2 Vout power_out Regulated output, adjustable from 1.2 V to 37 V at over 100 mA, with a 1.25 V reference held between Vout and Adjust.
3 Vin power_in Unregulated input, with a maximum input-output voltage differential of 40 Vdc and a recommended 0.1 µF bypass capacitor.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOT-89
Category Power Supply Chip
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input-Output Voltage Differential VI-VO 40 Vdc 2
Operating Junction Temperature Range TJ -40 150 C 2
Storage Temperature Range Tstg -65 150 C 2

CAD (KiCad official)

  • Symbol: HT317LRHZ
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: ht317lrhz-etched.step / ht317lrhz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht317lrhz.step / ht317lrhz.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HTCSEMI datasheet (12 pp, sha256 5731553e5e180dd3, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF