TPS74801RGWR from Texas Instruments, in a VQFN-20-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	OUT	power_out	Regulated output voltage. A small capacitor (total typical capacitance >= 2.2 uF, ceramic) is needed from this pin to ground to assure stability. One of four OUT pins tied together internally.
2	NC	unconnected	No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane.
3	NC	unconnected	No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane.
4	NC	unconnected	No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane.
5	IN	power_in	Input to the device (0.8 V to 5.5 V). A 1-uF or larger input capacitor is recommended for optimal performance. One of four IN pins tied together internally.
6	IN	power_in	Input to the device (0.8 V to 5.5 V). A 1-uF or larger input capacitor is recommended for optimal performance. One of four IN pins tied together internally.
7	IN	power_in	Input to the device (0.8 V to 5.5 V). A 1-uF or larger input capacitor is recommended for optimal performance. One of four IN pins tied together internally.
8	IN	power_in	Input to the device (0.8 V to 5.5 V). A 1-uF or larger input capacitor is recommended for optimal performance. One of four IN pins tied together internally.
9	PG	output	Power Good pin. Open-drain, active-high output that indicates the status of VOUT. When VOUT exceeds the PG trip threshold, PG goes high-impedance; when below the threshold, it is driven low. Requires a pull-up resistor from 10 kOhm to 1 MOhm to a supply of up to 5.5 V (may be higher than the input voltage). May be left unconnected if not used.
10	BIAS	power_in	Bias input voltage (2.7 V to 5.5 V) for error amplifier, reference, and internal control circuits. A 1-uF or larger capacitor is recommended for optimal performance. If IN is connected to BIAS, a 4.7-uF or larger capacitor must be used.
11	EN	input	Enable pin. Driving this pin high enables the regulator; driving low puts the regulator into shutdown mode. This pin must not be left unconnected.
12	GND	power_in	Ground reference for the device.
13	NC	unconnected	No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane.
14	NC	unconnected	No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane.
15	SS	passive	Soft-Start pin. A capacitor connected from this pin to ground sets the start-up time. If left unconnected, the regulator output soft-start ramp time is typically 200 us.
16	FB	input	Feedback pin. Connect to the center tap of an external resistor divider network that sets the output voltage. This pin must not be left floating.
17	NC	unconnected	No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane.
18	OUT	power_out	Regulated output voltage. A small capacitor (total typical capacitance >= 2.2 uF, ceramic) is needed from this pin to ground to assure stability. One of four OUT pins tied together internally.
19	OUT	power_out	Regulated output voltage. A small capacitor (total typical capacitance >= 2.2 uF, ceramic) is needed from this pin to ground to assure stability. One of four OUT pins tied together internally.
20	OUT	power_out	Regulated output voltage. A small capacitor (total typical capacitance >= 2.2 uF, ceramic) is needed from this pin to ground to assure stability. One of four OUT pins tied together internally.
21	GND	power_in	Thermal pad. Must be soldered to the ground plane for increased thermal performance. Internally connected to ground.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	VQFN-20-EP(5x5)
Category	PMIC
Pins	21

Ordering variants

Same part, different packaging or reel option.

TPS74801RGWR
TPS74801RGWRRGWT
TPS74801RGWRDRCR
TPS74801RGWRDRCT

CAD (KiCad official)

Symbol: TPS74801RGWR
Footprint: Package_DFN_QFN:QFN-20-1EP_5x5mm_P0.65mm_EP3.35x3.35mm
3D model: VQFN-20-EP(5x5) (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (39 pp, sha256 975b8797c5c5fd9e, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF