LT1965EMS8E-3.3#TRPBF from Analog Devices, in a MSOP-8-EP. 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	OUT	power_out	Output pin that supplies power to the load and needs a minimum 10µF output capacitor to prevent oscillations.
2	OUT	power_out	Output pin that supplies power to the load and needs a minimum 10µF output capacitor to prevent oscillations.
3	SENSE/ADJ	input	On the fixed 3.3V version this is SENSE, the error amplifier input that should connect to OUT for optimum regulation, with a bias current of 100µA at the nominal output voltage.
4	GND	power_in	Ground pin that should be tied directly to pin 5, pin 9 and the PCB ground.
5	GND	power_in	Ground pin that should be tied directly to pin 4, pin 9 and the PCB ground.
6	SHDN	input	Shutdown pin that turns the output off when pulled low, with SHDN pin current typically less than 5.5µA, and should connect to IN if unused.
7	IN	power_in	Input pin that supplies power to the device and should have a 1µF to 10µF bypass capacitor if more than six inches from the main input filter capacitor.
8	IN	power_in	Input pin that supplies power to the device and should have a 1µF to 10µF bypass capacitor if more than six inches from the main input filter capacitor.
9	EP (GND)	power_in	Exposed pad that must be tied directly to pins 4 and 5 and the PCB ground to provide enhanced thermal performance.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	MSOP-8-EP
Category	Power Management ICs
Pins	9

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
IN Pin Voltage		-22		22	V		2
OUT Pin Voltage		-22		22	V		2
Input to Output Differential Voltage		-22		22	V	Note 2	2
SENSE Pin Voltage		-22		22	V		2
SHDN Pin Voltage		-22		22	V		2
Storage Temperature Range		-65		150	°C		2
Operating Junction Temperature Range (E-Grade)		-40		125	°C	E-grade	2
Maximum Junction Temperature (MSOP)	TJMAX			125	°C	MS8E MSOP package, E-grade	2
Thermal Resistance Junction-to-Ambient (MSOP)	θJA		60		°C/W	MS8E MSOP package	2
Thermal Resistance Junction-to-Case (MSOP)	θJC		10		°C/W	MS8E MSOP package	2
Measured Thermal Resistance Junction-to-Ambient (MSOP, board copper area range)	θJA	55		68	°C/W	Table 2, 2-layer FR-4 board, still air, copper area 50mm2 to 2500mm2 topside	15
Regulated Output Voltage	VOUT	3.25	3.3	3.35	V	LT1965-3.3, VIN = 3.8V, ILOAD = 1mA	4
Regulated Output Voltage	VOUT	3.201	3.3	3.399	V	LT1965-3.3, 4.3V < VIN < 20V, 1mA < ILOAD < 1.1A	4
Line Regulation				5.5	mV	LT1965-3.3, ΔVIN = 3.8V to 20V, ILOAD = 1mA	4
Load Regulation			11.5	22	mV	LT1965-3.3, VIN = 4.3V, ΔILOAD = 1mA to 1.1A	4
Load Regulation				44	mV	LT1965-3.3, VIN = 4.3V, ΔILOAD = 1mA to 1.1A, full operating temperature range	4
Dropout Voltage			0.055	0.08	V	VIN = VOUT(NOMINAL), ILOAD = 1mA	4
Dropout Voltage				0.14	V	VIN = VOUT(NOMINAL), ILOAD = 1mA, full operating temperature range	4
Dropout Voltage			0.12	0.175	V	VIN = VOUT(NOMINAL), ILOAD = 100mA	4
Dropout Voltage				0.28	V	VIN = VOUT(NOMINAL), ILOAD = 100mA, full operating temperature range	4
Dropout Voltage			0.21	0.25	V	VIN = VOUT(NOMINAL), ILOAD = 500mA	4
Dropout Voltage				0.36	V	VIN = VOUT(NOMINAL), ILOAD = 500mA, full operating temperature range	4
Dropout Voltage			0.31	0.36	V	VIN = VOUT(NOMINAL), ILOAD = 1.1A	4
Dropout Voltage				0.49	V	VIN = VOUT(NOMINAL), ILOAD = 1.1A (TJ < 125°C)	4
GND Pin Current			0.5	1.1	mA	VIN = VOUT(NOMINAL) + 1V, ILOAD = 0mA	4
GND Pin Current			0.6	1.5	mA	VIN = VOUT(NOMINAL) + 1V, ILOAD = 1mA	4
GND Pin Current			2.2	5.5	mA	VIN = VOUT(NOMINAL) + 1V, ILOAD = 100mA	4
GND Pin Current			8.2	20	mA	VIN = VOUT(NOMINAL) + 1V, ILOAD = 500mA	4
GND Pin Current			21	40	mA	VIN = VOUT(NOMINAL) + 1V, ILOAD = 1.1A (TJ < 125°C)	4
GND Pin Current				40	mA	VIN = VOUT(NOMINAL) + 1V, ILOAD = 1A (H-Grade, TJ > 125°C)	4
Output Voltage Noise			40		µVRMS	COUT = 10µF, ILOAD = 1.1A, BW = 10Hz to 100kHz	4
Shutdown Threshold (Off to On)		0.85		2	V	VOUT = Off to On	4
Shutdown Threshold (On to Off)		0.2		0.45	V	VOUT = On to Off	4
SHDN Pin Current			0.01	1	µA	VSHDN = 0V	5
SHDN Pin Current			5.5	10	µA	VSHDN = 20V	5
Quiescent Current in Shutdown			0.01	1	µA	VIN = 6V, VSHDN = 0V	5
Ripple Rejection		57	75		dB	VIN, VOUT = 1.5V (AVG), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 0.75A	5
Current Limit		1.2		2.4	A	VIN = 7V, VOUT = 0	5
Current Limit		1.1			A	VIN = VOUT(NOMINAL) + 1V, ΔVOUT = -0.1V (TJ < 125°C)	5
Input Reverse-Leakage Current				1	mA	VIN = -20V, VOUT = 0	5
Reverse-Output Current			275	525	µA	LT1965-3.3, VOUT = 3.3V, VIN = 0	5
Quiescent Current (fixed voltage versions)	IQ		600		µA	Fixed voltage versions, operating quiescent current (Applications Information text)	12

CAD (KiCad official)

Symbol: LT1965EMS8E-3.3#TRPBF
Footprint: Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm
3D model: MSOP-8-EP (KiCad packages3D, STEP)
3D model files: lt1965ems8e-3-3-trpbf-etched.step / lt1965ems8e-3-3-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt1965ems8e-3-3-trpbf.step / lt1965ems8e-3-3-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 070eb5a9c32d091a, 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).

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LT1965EMS8E-3.3#TRPBF

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3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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