component

UCC28950TPWRQ1

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)ucc28950tpwrq1factory-2.0.0extractor-text
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UCC28950TPWRQ1

Texas Instruments · DC-DC Converters · TSSOP-24

UCC28950TPWRQ1 from Texas Instruments, in a TSSOP-24. 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 VREF power_out Provides a 5 V reference output with ±1.5% accuracy and up to 20 mA of output current.
2 EA+ input Non-inverting input of the error amplifier.
3 EA- input Inverting input of the error amplifier.
4 COMP bidirectional Error amplifier output and input to the PWM comparator.
5 SS/EN input Sets soft-start timing, enables the device, and configures hiccup-mode protection.
6 DELAB input Programs the dead-time delay between OUTA and OUTB.
7 DELCD input Programs the dead-time delay between OUTC and OUTD.
8 DELEF input Programs the delay time between OUTA and OUTF, and between OUTB and OUTE, with a range of 30 ns to 1400 ns.
9 TMIN input Programs the minimum duty cycle in burst mode, with a range of 100 ns to 800 ns.
10 RT input Sets the oscillator frequency and selects leader or follower mode.
11 RSUM input Programs slope compensation and selects voltage-mode or peak-current-mode control.
12 DCM input Sets the discontinuous conduction mode (DCM) threshold, programmable from 5% to 30% of the CS voltage.
13 ADELEF input Programs the delay time between primary-side and secondary-side switches (tAFSET and tBESET).
14 ADEL input Programs the primary-switch dead time over the CS voltage range (tABSET and tCDSET).
15 CS input Senses current for cycle-by-cycle overcurrent protection and the adaptive delay functions.
16 SYNC bidirectional Passes the synchronization signal from the leader controller to the input of the follower controller.
17 OUTF output Primary switching output with 0.2 A sink and source capability.
18 OUTE output Primary switching output with 0.2 A sink and source capability.
19 OUTD output Primary switching output with 0.2 A sink and source capability.
20 OUTC output Primary switching output with 0.2 A sink and source capability.
21 OUTB output Primary switching output with 0.2 A sink and source capability.
22 OUTA output Primary switching output with 0.2 A sink and source capability.
23 VDD power_in Bias supply input; the recommended supply range is 8 V to 17 V, with an absolute maximum of 20 V.
24 GND power_in Ground reference; all signals are referenced to this node.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-24
Category Power Management (PMIC)
Pins 24

CAD (KiCad official)

  • Symbol: UCC28950TPWRQ1
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: ucc28950tpwrq1-etched.step / ucc28950tpwrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc28950tpwrq1.step / ucc28950tpwrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (81 pp, sha256 f87284109bd08aff, retrieved 2026-10-08, 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