component

LM53602AMPWPR

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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LM53602AMPWPR

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

LM53602AMPWPR 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 SW output Regulator switch node driven by internal high-side and low-side MOSFETs; connect to power inductor and directly to pin 2 at PCB.
2 SW output Regulator switch node driven by internal high-side and low-side MOSFETs; connect to power inductor and directly to pin 1 at PCB.
3 CBOOT power_out Bootstrap supply input for high-side gate drivers; connect 470-nF capacitor between this pin and SW node.
4 VCC power_out Internal 3.15-V regulated output for control circuits; bypass with 3.3-µF capacitor to GND; do not connect to external loads.
5 BIAS input Input to internal voltage regulator; connect to output voltage point with 0.1-µF bypass capacitor to GND; do not ground directly.
6 SYNC input Synchronization input for regulator switching frequency in range 1.9 to 2.3 MHz; connect to GND when unused; do not float.
7 FPWM input Mode control input for PWM/PFM operation; high forces PWM mode, low enables auto mode with transitions between PFM and PWM; do not float.
8 RESET output Open-drain reset output; high indicates power OK, low indicates fault or EN low; connect to external voltage supply through current-limiting resistor.
9 FB input Feedback input to output voltage regulator; connect to sense point for fixed options or divider tap for adjustable; nominal reference 1.0 V; do not float or ground.
10 AGND power_in Analog ground reference for regulator circuits; all electrical parameters measured with respect to this pin; connect to EP and PGND on PCB.
11 EN input Enable input to regulator; high enables operation, low disables; rising threshold 1.7 V, falling threshold 0.8 V; can connect directly to VIN; do not float.
12 VIN power_in Power supply input from 3.5 V to 36 V with transient capability to 42 V; bypass with high-quality capacitor to PGND; connect directly to pin 13 at PCB.
13 VIN power_in Power supply input from 3.5 V to 36 V with transient capability to 42 V; bypass with high-quality capacitor to PGND; connect directly to pin 12 at PCB.
14 N/C unconnected No connection to device.
15 PGND power_in Power ground to internal low-side MOSFET; connect to AGND and system ground; connect directly to pin 16 at PCB.
16 PGND power_in Power ground to internal low-side MOSFET; connect to AGND and system ground; connect directly to pin 15 at PCB.
17 EP power_in Exposed die attach paddle thermal pad; connect to ground plane for adequate heat sinking and EMI noise reduction.

Key specifications

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

CAD (KiCad official)

  • Symbol: LM53602AMPWPR
  • Footprint: Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm
  • 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
  • 3D model files: lm53602ampwpr-etched.step / lm53602ampwpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm53602ampwpr.step / lm53602ampwpr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 590d70f52aa0f37f, retrieved 2026-10-07, 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-4-5-20251001 (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