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LM2854MH-500

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM2854MH-500

Texas Instruments · DC-DC Converters · HTSSOP-16-EP

LM2854MH-500 from Texas Instruments, in a HTSSOP-16-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 NC unconnected Reserved for factory use; this pin should be connected to GND to ensure proper operation.
2 PGND power_in Power ground for the internal power switches; connect together locally at the device and to the PC board ground plane.
3 PGND power_in Power ground for the internal power switches; connect together locally at the device and to the PC board ground plane.
4 PGND power_in Power ground for the internal power switches; connect together locally at the device and to the PC board ground plane.
5 PVIN power_in Input voltage to the internal power switches, specified from 2.95 V to 5.5 V to GND; place a low-ESR input capacitor as close as possible to these pins.
6 PVIN power_in Input voltage to the internal power switches, specified from 2.95 V to 5.5 V to GND; connect together at the device with pins 5 and 7.
7 PVIN power_in Input voltage to the internal power switches, specified from 2.95 V to 5.5 V to GND; connect together at the device with pins 5 and 6.
8 NC unconnected Reserved for factory use; this pin should be connected to GND to ensure proper operation.
9 NC unconnected Reserved for factory use; this pin should be connected to GND to ensure proper operation.
10 AVIN power_in Analog input supply that generates the internal bias and feeds the UVLO circuit; if it falls below the UVLO threshold both internal FETs turn off, and TI recommends a 1 Ω series RC filter from PVIN with a 0.1 µF to 1 µF X7R bypass capacitor.
11 EN input Active-high enable input with typical turn-on threshold of 1.23 V and 0.15 V hysteresis; connect to PVIN if not used.
12 SW output Switch node, the PWM output of the internal MOSFET power switches; tie together locally with pin 13 and connect to the filter inductor.
13 SW output Switch node, the PWM output of the internal MOSFET power switches; tie together locally with pin 12 and connect to the filter inductor.
14 SS bidirectional Soft-start control; an internal 2 µA current source charges an external capacitor to AGND to set the start-up ramp rate, and the pin can also configure the tracking feature.
15 AGND power_in Quiet analog ground for the internal bias circuitry.
16 FB input Feedback input to the inverting input of the voltage-loop error amplifier, which compares against the 0.8 V bandgap reference on its non-inverting input.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-16-EP
Category Power Supply Chip
Pins 17

CAD (KiCad official)

  • Symbol: LM2854MH-500
  • Footprint: Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm
  • 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
  • 3D model files: lm2854mh-500-etched.step / lm2854mh-500-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2854mh-500.step / lm2854mh-500.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (36 pp, sha256 c4a92a4d02e35926, retrieved 2026-10-12, 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 0.3, primary claude-haiku-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