Power Supplies - Board Mount

LTM4643IV#PBF

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DC/DC POL CONVERTER, MODULE, BUCK, 4 V TO 20 V IN, 600 MV TO 3.3 V / 3 A OUT, LGA-77

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DocumentsLTM4643: Ultrathin Quad μModule Regulator with Configurable 3A Output Array Data Sheet (Rev.D)R504 Reliability Data

Power Supplies - Board Mount

LTM4643IV#PBF

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Analog Devices Inc./Maxim Integrated

DC/DC POL CONVERTER, MODULE, BUCK, 4 V TO 20 V IN, 600 MV TO 3.3 V / 3 A OUT, LGA-77

Deep-Dive with AI

DocumentsLTM4643: Ultrathin Quad μModule Regulator with Configurable 3A Output Array Data Sheet (Rev.D)R504 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTM4643IV#PBF

Applications	ITE (Commercial)
Current - Output (Max)	3 A
Features	UVLO, OVP, OTP, OCP
Mounting Type	Surface Mount
Number of Outputs	4
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Package / Case	77-LGA Module
Size / Dimension [x]	0.59 in
Size / Dimension [x]	15 mm
Size / Dimension [y]	0.35 in
Size / Dimension [y]	9 mm
Size / Dimension [z]	1.8 mm
Size / Dimension [z]	0.07 in
Supplier Device Package	77-LGA (15x9)
Type	Non-Isolated PoL Module
Voltage - Input (Max) [Max]	20 V
Voltage - Input (Min) [Min]	4 V
Voltage - Output 1 [Max]	3.3 V
Voltage - Output 1 [Min]	0.6 V
Voltage - Output 2 [Max]	3.3 V
Voltage - Output 2 [Min]	0.6 V
Voltage - Output 3 [Max]	3.3 V
Voltage - Output 3 [Min]	0.6 V

LTM4643 Series

Ultrathin Quad μModule Regulator with Configurable 3A Output Array

Part	Size / Dimension [x]	Size / Dimension [z]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [y]	Size / Dimension [z]	Package / Case	Current - Output (Max)	Voltage - Input (Min) [Min]	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output 2 [Min]	Voltage - Output 2 [Max]	Voltage - Output 3 [Max]	Voltage - Output 3 [Min]	Number of Outputs	Supplier Device Package	Voltage - Output 1 [Min]	Voltage - Output 1 [Max]	Voltage - Input (Max) [Max]	Type	Mounting Type	Features
Analog Devices Inc./Maxim Integrated LTM4643IY#PBF	0.59 in	1.8 mm	15 mm	0.35 in	9 mm	0.07 in	77-BBGA Module	3 A	4 V	ITE (Commercial)	125 °C	-40 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-BGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount
Analog Devices Inc./Maxim Integrated LTM4643IV#PBF	0.59 in	1.8 mm	15 mm	0.35 in	9 mm	0.07 in	77-LGA Module	3 A	4 V	ITE (Commercial)	125 °C	-40 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-LGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount	OCP OTP OVP UVLO
Analog Devices Inc./Maxim Integrated LTM4643MPY							77-BBGA Module	3 A	4 V	ITE (Commercial)	125 °C	-55 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-BGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount	OCP OTP OVP
Analog Devices Inc./Maxim Integrated LTM4643EY#PBF	0.59 in	1.8 mm	15 mm	0.35 in	9 mm	0.07 in	77-BBGA Module	3 A	4 V	ITE (Commercial)	125 °C	-40 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-BGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount
Analog Devices Inc./Maxim Integrated LTM4643MPV#PBF	0.59 in	1.8 mm	15 mm	0.35 in	9 mm	0.07 in	77-LGA Module	3 A	4 V	ITE (Commercial)	125 °C	-55 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-LGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount	OCP OTP OVP UVLO
Analog Devices Inc./Maxim Integrated LTM4643IY							77-BBGA Module	3 A	4 V	ITE (Commercial)	125 °C	-40 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-BGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount	OCP OTP OVP
Analog Devices Inc./Maxim Integrated LTM4643MPY#PBF	0.59 in	1.8 mm	15 mm	0.35 in	9 mm	0.07 in	77-BBGA Module	3 A	4 V	ITE (Commercial)	125 °C	-55 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-BGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount
Analog Devices Inc./Maxim Integrated LTM4643EV#PBF	0.59 in	1.8 mm	15 mm	0.35 in	9 mm	0.07 in	77-LGA Module	3 A	4 V	ITE (Commercial)	125 °C	-40 C	0.6 V	3.3 V	3.3 V	0.6 V	4	77-LGA (15x9)	0.6 V	3.3 V	20 V	Non-Isolated PoL Module	Surface Mount	OCP OTP OVP UVLO

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	589	$ 44.95	1m+
Mouser	N/A	1	$ 47.36	1m+
		10	$ 37.08
		25	$ 35.29
		50	$ 35.28
		100	$ 35.27
		170	$ 33.85
Newark	Each	1	$ 44.95	1m+
		5	$ 39.31
		10	$ 33.66
		25	$ 32.22

Description

General part information

LTM4643 Series

The LTM4643 is a quad DC/DC step-down µModule (power module) regulator with 3A per output. Outputs can be paralleled in an array for up to 12A capability. Included in the package are the switching controllers, power FETs, inductors and support components. Operating over an input voltage range of 4V to 20V or 2.375V to 20V with an external bias supply, the LTM4643 supports an output voltage range of 0.6V to 3.3V each set by a single external resistor. Its high efficiency design delivers 3A continuous output current per channel. Only bulk input and output capacitors are needed.Fault protection features include overvoltage, overcurrent and overtemperature protection. The LTM4643 is offered in a 9mm ×15mm × 1.82mm LGA and 9mm × 15mm × 2.42mm BGA packages with SnPb (BGA) or RoHS compliant terminal finish.ApplicationsFPGAs, GPUs and ASICs ApplicationsPCIe and Backside PCB Mounting

Documents

Technical documentation and resources

LTM4643: Ultrathin Quad μModule Regulator with Configurable 3A Output Array Data Sheet (Rev.D)

Data Sheet

R504 Reliability Data

Reliability Data