LTC3426ES6#TRMPBF from Analog Devices, in a TSOT-23-6. 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	SW	output	Switch pin connects the inductor between SW and VIN and drives the internal 2A, 100mΩ NMOS switch; the absolute maximum SW voltage is -0.3V to 6V.
2	GND	power_in	Signal and power ground that requires a short direct PCB path to the (-) side of the output capacitor(s).
3	FB	input	Feedback input to the gm error amplifier, connected to the resistor divider tap so VOUT = 1.22 • (1 + R1/R2) over 2.5V to 5V, with an absolute maximum of -0.3V to 6V.
4	SHDN	input	Logic-controlled shutdown input where high gives normal operation and low gives shutdown with quiescent current below 1µA, typically tied to VIN through a 1MΩ pull-up resistor.
5	VOUT	input	Output voltage sense input from which the NMOS switch gate drive is derived as the greater of VOUT and VIN, with an absolute maximum of -0.3V to 6V.
6	VIN	power_in	Input supply pin that must be locally bypassed, with the input voltage range starting at 1.6V and an absolute maximum of -0.3V to 6V.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	TSOT-23-6
Category	Power Management ICs
Pins	6

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Input Voltage Range		1.6			V	SHDN = VIN	2
Output Voltage Adjust Range		2.25		5	V		2
Feedback Voltage		1.173	1.22	1.247	V		2
Quiescent Current (Shutdown)				1	µA	VSHDN = 0V, Not Including Switch Leakage	2
Quiescent Current			600	1000	µA	SHDN = VIN, Not Switching	2
Switch Leakage			0.2	10	µA	VSW = 5V	2
Current Limit		2		2.3	A		2
Maximum Duty Cycle		80		85	%	VFB = 1.15V	2
Switching Frequency		0.85	1.2	1.5	MHz		2
SHDN Input High		1			V		2
SHDN Input Low				0.4	V		2
SHDN Input Current				1	µA	SHDN = 5.5V	2
Feedback Input Current				0.1	µA	VFB = 1.23V	2
Switch On Resistance	RDS(ON)		0.11		Ω	VOUT = 3.3V	2
Switch On Resistance	RDS(ON)		0.1		Ω	VOUT = 5V	2
VIN Voltage	VIN	-0.3		6	V		2
SW Voltage	SW	-0.3		6	V		2
SHDN, FB Voltage	SHDN, FB	-0.3		6	V		2
VOUT Voltage	VOUT	-0.3		6	V		2
Operating Temperature Range		-40		85	°C	Note 2	2
Storage Temperature Range		-65		125	°C		2
Lead Temperature (Soldering)				300	°C	10 sec	2
Maximum Junction Temperature	TJMAX			125	°C		2
Thermal Resistance, Junction-to-Ambient	θJA		165		°C/W		2
Thermal Resistance, Junction-to-Case	θJC		102		°C/W		2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part	Material	Colour / plating	Datasheet says	Page
contacts	copper		recommended component placement. A large ground pin copper area will help to lower the chip temperature.	6

CAD (KiCad official)

Symbol: LTC3426ES6#TRMPBF
Footprint: Package_TO_SOT_SMD:TSOT-23-6
3D model: TSOT-23-6 (KiCad packages3D, STEP)
3D model files: ltc3426es6-trmpbf-etched.step / ltc3426es6-trmpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltc3426es6-trmpbf.step / ltc3426es6-trmpbf.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices datasheet (12 pp, sha256 8e7b1c33f0a90677, retrieved 2026-10-30, tier: manufacturer)
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

LTC3426ES6#TRMPBF

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3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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