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Contents

README

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LM25037QMTX

Texas Instruments · AC-DC Controllers And Regulators · TSSOP-16

LM25037QMTX from Texas Instruments, in a TSSOP-16. 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 RAMP input Modulation ramp input to PWM comparator, reset to ground at end of each cycle by internal FET.
2 UVLO input Line undervoltage lockout input with 0.45V shutdown and 1.25V standby thresholds.
3 COMP bidirectional Error amplifier output and PWM comparator input with internal 1.25V reference on noninverting input.
4 FB input Feedback input to error amplifier inverting input; connect to AGND for isolated applications.
5 RT2 input Oscillator dead-time control resistor to AGND; sets forced dead-time between alternating output switching periods.
6 AGND power_in Analog ground reference; must connect directly to Power Ground.
7 RT1 input Oscillator maximum on-time control resistor to AGND; sum with RT2-set dead-time determines oscillator period.
8 CS input Current sense input; 250mV cycle-by-cycle current limit threshold with 65ns leading edge blanking.
9 RES bidirectional Restart timer; sources 18µA when cycle-by-cycle limit reached; 2V threshold fully discharges soft-start capacitor.
10 SS input Soft-start capacitor charge control; 100µA internal current source reduced to 1µA after restart event.
11 PGND power_in Power ground reference; must connect directly to Analog Ground.
12 OUTB output Alternating gate drive output capable of 1.2A peak source and sink current.
13 OUTA output Alternating gate drive output capable of 1.2A peak source and sink current.
14 VCC power_in Voltage supply input/output; internally regulated to 7.7V with 0.47µF minimum decoupling capacitor.
15 REF output 5V reference output with 10mA typical maximum output current.
16 VIN power_in Input voltage source; operates from 5.5V to 75V supply range.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Power Management (PMIC)
Pins 16

CAD (KiCad official)

  • Symbol: LM25037QMTX
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: lm25037qmtx-etched.step / lm25037qmtx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm25037qmtx.step / lm25037qmtx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 d21d69eae4ebea14, retrieved 2026-10-07, tier: lcsc)
  • 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