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Contents

README

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LM5164DDAT

Texas Instruments · DC-DC Converters · SO-8

LM5164DDAT from Texas Instruments, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground connection for internal circuits.
2 VIN power_in Regulator power supply input (6V to 100V) for high-side MOSFET and internal bias regulator; connect via short low-impedance path to converter input.
3 EN/UVLO input Precision enable and undervoltage lockout input with 1.1V shutdown and 1.5V enable threshold for programmable input voltage lockout protection.
4 RON input On-time programming input; resistor between this pin and GND sets buck switch on-time from 50ns minimum to 10000ns maximum.
5 FB input Feedback input for output voltage regulation comparator; regulation reference voltage 1.181V to 1.218V.
6 PGOOD output Open-drain power good indicator output requiring external pull-up resistor (10kΩ to 100kΩ) to voltage ≤14V; asserts when output voltage in regulation.
7 BST output Bootstrap gate drive power output; requires 2.2nF 50V X7R ceramic capacitor connected between BST and SW to bias internal high-side MOSFET gate driver.
8 SW output Switch node output (maximum switching frequency 1MHz) connected to high-side NMOS buck switch source and low-side NMOS synchronous rectifier drain; connect to power inductor.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SO-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: LM5164DDAT
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SO-8 (KiCad packages3D, STEP)
  • 3D model files: lm5164ddat-etched.step / lm5164ddat-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm5164ddat.step / lm5164ddat.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 863a4e9bf023f018, retrieved 2026-09-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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