LTC2955CDDB-1#TRPBF from Analog Devices, in a DFN-10-EP(2x3). 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	INT	output	Open-drain interrupt output, pulled low on a turn-off command from the pushbutton or ON pin, with a minimum pulse width of 32ms extendable through TMR, and rated -0.3V to 6V.
2	PGD	output	ON status output that goes high (1.5V to 5.5V, 2µA pull-up) when the ON pin is above its 0.8V threshold, telling the system whether turn-on came from ON or PB; leave open if unused.
3	EN	output	Active-high enable output (LTC2955-1) asserted when the pushbutton is pressed or ON goes high, with a 2µA pull-up and a high level that follows the internal LDO (1.5V to 5.5V), for connection to a regulator RUN or SHUTDOWN pin.
4	VIN	power_in	Power supply input with a 1.5V to 36V operating range (40V absolute maximum); for >20V applications connect through a 1k resistor and bypass to GND with a 10nF low-ESR capacitor.
5	PB	input	Active-low pushbutton input with a 900k pull-up to an internal LDO, tolerant of ±36V, connected between the pushbutton and GND; may be left open if unused.
6	GND	power_in	Device ground.
7	SEL	input	Mode select input: GND blocks the ON falling edge from causing turn-off, VIN allows both ON rising and falling edges to turn the system on and off; do not leave open.
8	TMR	passive	Timer pin where a capacitor to ground adds 5.2 seconds/µF beyond the default 64ms turn-off debounce time; grounding the pin disables forced power-down by pushbutton press.
9	KILL	input	Kill input with a 0.8V threshold where a low releases the enable output; tie to the system supply or an external 1.2V to 5V if unused (absolute maximum 6V).
10	ON	input	Monitor input with a 0.8V rising threshold connected to a resistive divider for automatic system turn-on (and turn-off when SEL is high); tie to GND if unused.
11	EP	passive	Exposed pad (DFN only); leave open or connect to device ground.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	DFN-10-EP(2x3)
Category	Power Management ICs
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
VIN Supply Voltage Range	VIN	1.5		36	V		3
VIN Supply Current	IIN	0.5	1.2	3	µA		3
VIN Undervoltage Lockout	VUVL	1	1.15	1.3	V	VIN Rising	3
VIN Undervoltage Lockout Hysteresis	VUVL(HYST)	30	85	200	mV		3
PB Voltage Range	VPB(MIN(MAX))	-36		36	V		3
PB Input Threshold	VPB	0.6	0.8	1	V	PB Falling	3
PB Open Circuit Voltage	VPB(VOC)	3	4.3	5.5	V	I = -1µA	3
ON Threshold	VON	0.76	0.8	0.84	V	ON Rising	3
ON Input Leakage Current	ION	-10		10	nA	ON = 1V	3
ON Input Leakage Current	ION	-100		100	nA	ON = 36V	3
KILL Input Threshold Voltage	VKILL	0.76	0.8	0.84	V	KILL Falling	3
KILL Input Leakage Current	IKILL	-50		50	nA	KILL = 1V	3
SEL Input Threshold	VSEL	0.4	0.8	1.2	V		3
SEL Input Current	ISEL	-50		50	nA	SEL = 1V	3
SEL Input Current	ISEL	-100		100	nA	SEL = 36V	3
EN/EN Voltage Output Low	VEN/EN(VOL)		0.175	0.4	V	I = 1mA	3
EN Voltage Output High (LTC2955-1)	VEN(VOH)	1.5		5.5	V	I = 0µA, -0.5µA	3
EN Pull-Up Current (LTC2955-1)	IEN	-1.2	-2	-2.8	µA	EN = 0V	3
INT Voltage Output Low	VINT(VOL)			0.4	V	I = 3mA	3
INT Leakage Current	IINT	-50		50	nA	INT = 5V	3
PGD Voltage Output High	VPGD(VOH)	1.5		5.5	V	I = 0µA, -0.5µA	3
PGD Voltage Output Low	VPGD(VOL)			0.4	V	I = 3mA	3
PGD Pull-Up Current	IPGD	-1.2	-2	-2.8	µA	PGD = 0V	3
TMR Pull-Up Current	ITMR(PU)	-2	-3	-4	µA	TMR = 0V	3
TMR Pull-Down Current	ITMR(PD)	2	3	4	µA	TMR = 1.5V	3
PB, ON Turn-On Debounce Time	tDB(ON)	19	32	45	ms	PB Falling or ON Rising → Enable Asserted	4
PB Interrupt Debounce Time	tDB(OFF)	19	32	45	ms	PB Falling → INT Falling	4
Additional Turn-Off Debounce Time	tTMR	5.8	11.5	17.2	ms	CTMR = 2200pF	4
Minimum INT Pulse Width	tINT(MIN)	19	32	45	ms	INT Falling → TMR Rising	4
ON Interrupt Delay	tON(PD)			200	µs	ON Falling → INT Falling, VSEL > 0.8V	4
PGD Propagation Delay	tPGD(PD)			200	µs	ON Falling → PGD Falling	4
KILL Propagation Delay	tKILL(PD)			60	µs	KILL Falling → Enable Released	4
KILL Minimum Pulse Width	tKILL(PW)			60	µs		4
KILL Turn-On Blanking	tKILL(ON BLANK)	304	512	720	ms	KILL Low, Enable Asserted → Enable Released	4
EN/EN Lockout Time	tEN(LOCK OUT)	0.6	1	1.4	s	Enable Released → Enable Asserted	4
VIN Absolute Maximum Voltage	VIN	-0.3		40	V		2
PB Absolute Maximum Voltage	PB	-40		40	V		2
ON Absolute Maximum Voltage	ON	-0.3		40	V		2
SEL Absolute Maximum Voltage	SEL	-0.3		40	V		2
KILL Absolute Maximum Voltage	KILL	-0.3		6	V		2
EN/EN Absolute Maximum Voltage	EN/EN	-0.3		40	V		2
INT Absolute Maximum Voltage	INT	-0.3		6	V		2
PGD Absolute Maximum Voltage	PGD	-0.3		6	V		2
TMR Absolute Maximum Voltage	TMR	-0.3		2.7	V		2
Storage Temperature Range		-65		150	°C		2
Maximum Junction Temperature	TJMAX			125	°C	DDB package	2
Operating Temperature Range (LTC2955C)		0		70	°C	LTC2955C grade	2
Thermal Resistance, Junction to Ambient	θJA			55	°C/W	DDB package	2

CAD (KiCad official)

Symbol: LTC2955CDDB-1#TRPBF
Footprint: Package_DFN_QFN:DFN-10-1EP_2x3mm_P0.5mm_EP0.64x2.4mm
3D model: DFN-10-EP(2x3) (KiCad packages3D, STEP)
3D model files: ltc2955cddb-1-trpbf-etched.step / ltc2955cddb-1-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltc2955cddb-1-trpbf.step / ltc2955cddb-1-trpbf.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices datasheet (22 pp, sha256 808f40fbceb97024, 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

LTC2955CDDB-1#TRPBF

Verified LTC2955CDDB-1#TRPBF

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README