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Contents

README

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LM2853MHX-1.2

Texas Instruments · DC-DC Converters · HTSSOP-14-EP

LM2853MHX-1.2 from Texas Instruments, in a HTSSOP-14-EP. 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 AVIN power_in Input voltage supply for control circuitry operating from 3V to 5.5V
2 EN input Enable control input, internally pulled up to AVIN voltage
3 SGND power_in Low noise ground for signal circuits
4 SS input Soft-start capacitor node, 1nF to 50nF capacitor range
5 NC unconnected No connect pin, must be tied to ground
6 PVIN power_in Input voltage supply for power FETs operating from 1.5V to 5.5V
7 PVIN power_in Input voltage supply for power FETs operating from 1.5V to 5.5V
8 SW output Switch node output to inductor and output filter capacitor
9 SW output Switch node output to inductor and output filter capacitor
10 PGND power_in Power ground, low impedance connection to ground plane
11 PGND power_in Power ground, low impedance connection to ground plane
12 NC unconnected No connect pin, must be tied to ground
13 NC unconnected No connect pin, must be tied to ground
14 SNS input Output voltage sense input for feedback control from 200kΩ divider network
15 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-14-EP
Category Power Supply Chip
Pins 15

CAD (KiCad official)

  • Symbol: LM2853MHX-1.2
  • Footprint: Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm
  • 3D model: HTSSOP-14-EP (KiCad packages3D, STEP)
  • 3D model files: lm2853mhx-1-2-etched.step / lm2853mhx-1-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2853mhx-1-2.step / lm2853mhx-1-2.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 df92f91bdfe52be8, retrieved 2026-09-26, 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-4-6 (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