component

TPS7A8901RTJT

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tps7a8901rtjtfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
tps7a8901rtjt / README.md
History Download
Ray Initial commit: component/tps7a8901rtjt 42e5c1b 22h ago

TPS7A8901RTJT

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · QFN-20-EP(4x4)

TPS7A8901RTJT from Texas Instruments, in a QFN-20-EP(4x4). 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 IN1 power_in Input supply pin for LDO 1; a 10 µF or greater input capacitor is required, placed as close to the input as possible.
2 IN1 power_in Input supply pin for LDO 1; a 10 µF or greater input capacitor is required, placed as close to the input as possible.
3 GND power_in Ground pin that must be connected to the thermal pad, to the other GND pins, and to ground with a low-impedance connection.
4 IN2 power_in Input supply pin for LDO 2; a 10 µF or greater input capacitor is required, placed as close to the input as possible.
5 IN2 power_in Input supply pin for LDO 2; a 10 µF or greater input capacitor is required, placed as close to the input as possible.
6 EN2 input Enable pin for channel 2; VEN2 ≥ VIH(EN2) enables the regulator and VEN2 ≤ VIL(EN2) disables it, and it must be connected to IN2 if the enable function is not used.
7 NR/SS2 passive Noise-reduction and soft-start capacitor connection for channel 2; a 10 nF or larger capacitor to GND is recommended, placed as close to the pin as possible.
8 SS_CTRL2 input Soft-start control for channel 2; connect to GND or IN2 to select normal or fast charging of the NR/SS2 capacitor, and to GND if no capacitor is used to avoid output overshoot.
9 PG2 output Open-drain power-good indicator for LDO 2; requires a 10-kΩ to 100-kΩ external pullup resistor and may be left floating or tied to GND if not used.
10 FB2 input Feedback input to the channel 2 error amplifier; a 10 nF feed-forward capacitor to OUT2 is recommended but not required, and it can disrupt PG2 operation.
11 OUT2 power_out Regulated output for LDO 2; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible.
12 OUT2 power_out Regulated output for LDO 2; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible.
13 GND power_in Ground pin that must be connected to the thermal pad, to the other GND pins, and to ground with a low-impedance connection.
14 OUT1 power_out Regulated output for LDO 1; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible.
15 OUT1 power_out Regulated output for LDO 1; requires a 22 µF or larger ceramic capacitor (10 µF or greater effective) to ground placed as close to the output as possible.
16 FB1 input Feedback input to the channel 1 error amplifier; a 10 nF feed-forward capacitor to OUT1 is recommended but not required, and it can disrupt PG1 operation.
17 PG1 output Open-drain power-good indicator for LDO 1; requires a 10-kΩ to 100-kΩ external pullup resistor and may be left floating or tied to GND if not used.
18 SS_CTRL1 input Soft-start control for channel 1; connect to GND or IN1 to select normal or fast charging of the NR/SS1 capacitor, and to GND if no capacitor is used to avoid output overshoot.
19 NR/SS1 passive Noise-reduction and soft-start capacitor connection for channel 1; a 10 nF or larger capacitor to GND is recommended, placed as close to the pin as possible.
20 EN1 input Enable pin for channel 1; VEN1 ≥ VIH(EN1) enables the regulator and VEN1 ≤ VIL(EN1) disables it, and it must be connected to IN1 if the enable function is not used.
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package QFN-20-EP(4x4)
Category Power Management (PMIC)
Pins 21

CAD (KiCad official)

  • Symbol: TPS7A8901RTJT
  • Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • 3D model: QFN-20-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: tps7a8901rtjt-etched.step / tps7a8901rtjt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps7a8901rtjt.step / tps7a8901rtjt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (50 pp, sha256 0597c8be312f6b57, 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