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Contents

Pinout
Key specifications
CAD (KiCad official)
Provenance

README

markdown

TPS54318RTET

Texas Instruments · DC-DC Converters · WQFN-16-EP(3x3)

TPS54318RTET from Texas Instruments, in a WQFN-16-EP(3x3). 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	VIN	power_in	Input supply voltage range is 2.95 V to 6 V.
2	VIN	power_in	Input supply voltage range is 2.95 V to 6 V.
3	GND	power_in	Power ground; should be electrically connected directly to the power pad under the device.
4	GND	power_in	Power ground; should be electrically connected directly to the power pad under the device.
5	AGND	power_in	Analog ground; should be electrically connected to GND close to the device.
6	VSENSE	input	Inverting node of the transconductance error amplifier.
7	COMP	output	Error amplifier output and input to the output switch current comparator; connect frequency compensation components to this pin.
8	RT/CLK	bidirectional	Resistor timing or external clock input pin.
9	SS	bidirectional	Slow-start pin; an external capacitor connected to this pin sets the output voltage rise time.
10	PH	output	Source of the internal high-side power MOSFET and drain of the internal low-side synchronous rectifier MOSFET.
11	PH	output	Source of the internal high-side power MOSFET and drain of the internal low-side synchronous rectifier MOSFET.
12	PH	output	Source of the internal high-side power MOSFET and drain of the internal low-side synchronous rectifier MOSFET.
13	BOOT	input	Bootstrap capacitor input; if voltage is below the minimum required by BOOT UVLO, the output is forced to switch off until the capacitor is refreshed.
14	PWRGD	output	Open drain power good output; asserts low if output voltage is low due to thermal shutdown, overcurrent, over/under-voltage or EN shutdown.
15	EN	input	Enable input with internal pull-up current source; pull below 1.2 V to disable or float to enable.
16	VIN	power_in	Input supply voltage range is 2.95 V to 6 V.
17	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	WQFN-16-EP(3x3)
Category	Power Management (PMIC)
Pins	17

CAD (KiCad official)

Symbol: TPS54318RTET
Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)
3D model files: tps54318rtet-etched.step / tps54318rtet-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps54318rtet.step / tps54318rtet.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (41 pp, sha256 1f9f20765ddc24aa, retrieved 2026-10-06, 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-4-5-20251001 (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