Steps a 3 to 17 V input down to a regulated rail at up to 3 A, with both MOSFETs integrated and a resistor divider at FB setting the output. The switching frequency is adjustable at FSW to trade efficiency against solution size, a DEF pin picks the light-load mode, soft-start is programmable at SS/TR, and a power-good flag reports regulation. Split analog and power supply and ground pins keep the reference quiet. A capable general-purpose buck for 5 V and 12 V rails.

Pinout

Pin	Name	Type	Function
1	SW	output	Switch node connected to the internal high-side/low-side MOSFETs. Tie pins 1, 2, 3 together and connect an inductor between SW and the output capacitor. Rated to VIN+0.3 V.
2	SW	output	Switch node (paralleled with pins 1 and 3) for the internal MOSFETs; connect the external inductor here.
3	SW	output	Switch node (paralleled with pins 1 and 2) for the internal MOSFETs; connect the external inductor here.
4	PG	output	Power Good open-drain output. High = VOUT within regulation, Low = VOUT below nominal. Requires an external pullup resistor; max sink current 10 mA. On TPS62130 this pin is high-impedance when EN = Low; on TPS62130A it is driven Low.
5	FB	input	Voltage feedback for the adjustable version (TPS62130/A). Connect a resistive divider from VOUT here (VFB = 0.8 V reference). On fixed-output versions (TPS62131/2/3) tie FB to AGND.
6	AGND	power_in	Analog ground. Must be connected directly to the exposed thermal pad and the common ground plane.
7	FSW	input	Switching Frequency Select. Low (tied to AGND) ~= 2.5 MHz; High (tied to VOUT or PG) ~= 1.25 MHz. Internal pulldown keeps the pin Low if floating. Max 7 V.
8	DEF	input	Output voltage scaling select. Low (AGND) = nominal VOUT, High (VOUT) = nominal +5%. Internal pulldown keeps it Low if floating. Max 7 V.
9	SS/TR	input	Soft-start / tracking pin. An external capacitor sets the internal reference rise time; source current 2.5 uA typ. Can be driven by an external ramp for output-voltage tracking or sequencing. Rated to VIN+0.3 V.
10	AVIN	power_in	Analog supply for the control circuitry. Must be tied to the same source as PVIN. Operating range 3 V to 17 V (abs-max 20 V).
11	PVIN	power_in	Power-stage supply input. Tie pins 11 and 12 together and to the same source as AVIN. Operating range 3 V to 17 V (abs-max 20 V). Bypass close to the pin.
12	PVIN	power_in	Power-stage supply input (paralleled with pin 11); tie to the same source as AVIN and bypass close to the pin.
13	EN	input	Enable input. High = enabled, Low = disabled (shutdown, IQ < 2 uA). VIH >= 0.9 V, VIL <= 0.3 V. Internal pulldown keeps device off if floating. Rated to VIN+0.3 V.
14	VOS	input	Output voltage sense pin for the control-loop feedback. Connect directly to VOUT at the output capacitor. Max 7 V.
15	PGND	power_in	Power ground return for the low-side MOSFET. Tie pins 15 and 16 together and to the exposed thermal pad and common ground plane.
16	PGND	power_in	Power ground return for the low-side MOSFET (paralleled with pin 15). Tie to the exposed thermal pad and common ground plane.
17	EP	power_in	Exposed thermal pad. Must be connected to AGND (pin 6), PGND (pins 15, 16) and the common ground plane, and soldered to the PCB for proper thermal dissipation and mechanical reliability.

Key specifications

Parameter	Value
Type	Synchronous step-down converter
Input	3-17 V
Output current	3 A
Switching freq	Adjustable (FSW pin)
Modes	Power-save or forced-PWM (DEF)
Extras	Power-good, adjustable soft-start
Package	VQFN-16

Ordering variants

Same part, different packaging or reel option.

TPS62130RGTR (VQFN-16)
TPS62130ARGTR (improved load transient)

CAD (KiCad official)

Symbol: Regulator_Switching:TPS62130 (KiCad official)
Footprint: Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias
3D model: VQFN-16 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (43 pp, sha256 8123e7da5ae64959, 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