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TPS7A9001DSKT

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · WSON-10-EP(2.5x2.5)

TPS7A9001DSKT from Texas Instruments, in a WSON-10-EP(2.5x2.5). 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 OUT power_out Regulated output; a 10 µF or larger capacitor must be connected between this pin and GND for stability, and the output is adjustable from 0.8 V to 5.7 V.
2 OUT power_out Regulated output (second OUT pin, tied to pin 1 internally); a 10 µF or larger capacitor must be connected between this pin and GND for stability.
3 FB input Feedback input to the control-loop error amplifier that sets the output voltage through the external R1/R2 divider, referenced to the 0.8 V internal reference.
4 GND power_in Device ground, to be connected directly to the thermal pad and not to any external plane.
5 PG output Open-drain power-good output that requires an external 10 kΩ to 100 kΩ pull-up resistor; it may be left floating or tied to GND when unused.
6 SS_CTRL input Soft-start control that sets the NR/SS charging current when tied to GND (≈6.2 µA typ.) or IN (≈100 µA typ.); it must be tied to GND if no NR/SS capacitor is used to avoid output overshoot.
7 EN input Enable input: the regulator is enabled when VEN ≥ VIH(EN) (1.1 V min.) and disabled when VEN ≤ VIL(EN) (0.4 V max.); if enable control is not used, connect it to IN.
8 NR/SS passive Noise-reduction and soft-start pin where an external capacitor (0 to 10 µF recommended range) is connected to filter reference noise and set the output start-up ramp.
9 IN power_in Input supply pin (1.4 V to 6.5 V recommended range) that requires a 10 µF or larger input capacitor.
10 IN power_in Input supply pin (1.4 V to 6.5 V recommended range), paralleled with pin 9, that requires a 10 µF or larger input capacitor.
11 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WSON-10-EP(2.5x2.5)
Category Power Management (PMIC)
Pins 11

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
IN, PG, EN voltage -0.3 7 V 4
IN, PG, EN voltage (pulse) -0.3 7.5 V 5% duty cycle, pulse duration ≤200µs 4
OUT voltage -0.3 V Printed maximum is VIN + 0.3 V (not numeric) 4
SS_CTRL voltage -0.3 V Printed maximum is VIN + 0.3 V (not numeric) 4
NR/SS, FB voltage -0.3 3.6 V 4
PG sink current 5 mA Current sunk into device 4
Operating junction temperature TJ -55 150 °C 4
Storage temperature Tstg -55 150 °C 4
ESD human body model V(ESD) -2000 2000 V HBM per ANSI/ESDA/JEDEC JS-001 4
ESD charged device model V(ESD) -500 500 V CDM per JEDEC JESD22-C101 4
Input supply voltage range VIN 1.4 6.5 V 4
Output voltage range VOUT 0.8 5.7 V 4
Output current IOUT 0 0.5 A 4
Input capacitor CIN 10 µF 4
Output capacitor COUT 10 µF 4
Noise-reduction capacitor CNR/SS 0 10 µF 4
Feedforward capacitor CFF 0 100 nF 4
Power-good pull-up resistor RPG 10 100 kΩ 4
Junction temperature TJ -40 125 °C 4
Input supply voltage range VIN 1.4 6.5 V 5
Input supply UVLO threshold, VIN rising VUVLO 1.31 1.39 V VIN rising 5
Output voltage range VOUT 0.8 5.7 V 5
Output voltage accuracy -1 1 % 1.4V ≤ VIN ≤ 6.5V, 5mA ≤ IOUT ≤ 0.5A 5
Dropout voltage, VIN 1.4V to 5.0V VDO 100 mV 1.4V ≤ VIN ≤ 5.0V, IOUT = 0.5A, VFB = 0.8V, 3% 5
Dropout voltage, VIN 5.0V to 5.7V VDO 200 mV 5.0V < VIN ≤ 5.7V, IOUT = 0.5A, VFB = 0.8V, 3% 5
Output current limit ILIM 0.8 1.1 1.5 A VOUT forced to 0.9 x VOUT(nom), VIN = VOUT(NOM) + 300mV 5
GND pin current IGND 2.1 3.5 mA VIN = 6.5V, IOUT = 5mA 5
Shutdown GND pin current ISDN 0.1 15 µA PG = open, VIN = 6.5V, VEN = 0.4V 5
EN pin current IEN -0.2 0.2 µA VIN = 6.5V, 0V ≤ VEN ≤ 6.5V 5
EN pin low-level input voltage (device disabled) VIL(EN) 0 0.4 V Device disabled 5
EN pin high-level input voltage (device enabled) VIH(EN) 1.1 6.5 V Device enabled 5
SS_CTRL pin current ISS_CTRL -0.2 0.2 µA VIN = 6.5V, 0V ≤ VSS_CTRL ≤ 6.5V 5
PG rising threshold VIT(PG+) 84 90.9 95 % PG going low as VOUT rises, percent of VOUT(NOM) 5
PG falling threshold VIT(PG-) 82 88.9 93 % PG going low as VOUT falls, percent of VOUT(NOM) 5
NR/SS charge current INR/SS 4 6.2 9 µA VNR/SS = GND, VSS_CTRL = GND 5
NR/SS charge current INR/SS 65 100 150 µA VNR/SS = GND, VSS_CTRL = VIN 5
FB pin leakage current IFB -100 100 nA VIN = 6.5V, VFB = 0.8V 6
Junction-to-ambient thermal resistance RθJA 62.5 °C/W 4
Junction-to-case (top) thermal resistance RθJC(top) 59.7 °C/W 4
Junction-to-board thermal resistance RθJB 30.6 °C/W 4
Junction-to-top characterization parameter ψJT 1.7 °C/W 5
Junction-to-board characterization parameter ψJB 30.7 °C/W 5
Junction-to-case (bottom) thermal resistance RθJC(bot) 7.8 °C/W 5

CAD (KiCad official)

  • Symbol: TPS7A9001DSKT
  • Footprint: Package_SON:WSON-10-1EP_2.5x2.5mm_P0.5mm_EP1.2x2mm
  • 3D model: WSON-10-EP(2.5x2.5) (KiCad packages3D, STEP)
  • 3D model files: tps7a9001dskt-etched.step / tps7a9001dskt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps7a9001dskt.step / tps7a9001dskt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (33 pp, sha256 a1a1adaf3549db90, retrieved 2026-10-18, 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