LTM4639EY#PBF

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Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS L VIN 20A DC/DC UMODULE BUCK REG

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LTM4639EY#PBF

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Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS L VIN 20A DC/DC UMODULE BUCK REG

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTM4639 Series

The LTM4639 is a complete 20A output high efficiency switch mode step-down DC/DC μModule (power module) regulator. Included in the package are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 2.375V to 7V, the LTM4639 supports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Only a few input and output capacitors are needed.Current mode operation allows precision current sharing of up to four LTM4639 regulators to obtain up to 80A output. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, multiphase/current sharing, Burst Mode operation and output voltage tracking for supply rail sequencing. A diode-connected PNP transistor is included for use as an internal temperature monitor. For up to 20V input operation, please see the LTM4637.The LTM4639 is offered in a 15mm × 15mm × 4.92mm BGA package. The LTM4639 is RoHS compliant.ApplicationsTelecom Servers and Networking EquipmentIndustrial EquipmentMedical SystemsHigh Ambient Temperature Systems3.3V Input Systems

Technical Specifications

Parameters and characteristics for this part

Specification	LTM4639EY#PBF

Applications	ITE (Commercial)
Current - Output (Max)	20 A
Efficiency	88 %
Features	UVLO, OVP, OCP
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package / Case	133-BBGA Module
Package Length	15 mm
Package Name	133-BGA
Package Width	15 mm
Size / Dimension Height	0.19 in
Size / Dimension Length	0.59 in
Size / Dimension Width	0.59 in
Type	Non-Isolated PoL Module
Voltage - Input (Max)	7 V
Voltage - Input (Min)	2.375 V
Voltage - Output 1 (Max)	5.5 V
Voltage - Output 1 (Min)	0.6 V

LTM4639 Series

Part	Number of Outputs	Applications	Voltage - Input (Min)	Features	Size / Dimension Width	Size / Dimension Length	Size / Dimension Height	Mounting Type	Efficiency	Package Name	Package Length	Package Width	Package / Case	Voltage - Input (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Type	Current - Output (Max)	Voltage - Output 1 (Max)	Voltage - Output 1 (Min)
Analog Devices Inc./Maxim Integrated LTM4639IY	1	ITE (Commercial)	2.375 V	OCP OVP UVLO	0.59 in	0.59 in	0.19 in	Surface Mount	88 %	133-BGA	15 mm	15 mm	133-BBGA Module	7 V	125 °C	-40 °C	Non-Isolated PoL Module	20 A	5.5 V	0.6 V
Analog Devices Inc./Maxim Integrated LTM4639EY#PBF	1	ITE (Commercial)	2.375 V	OCP OVP UVLO	0.59 in	0.59 in	0.19 in	Surface Mount	88 %	133-BGA	15 mm	15 mm	133-BBGA Module	7 V	125 °C	-40 °C	Non-Isolated PoL Module	20 A	5.5 V	0.6 V
Analog Devices Inc./Maxim Integrated LTM4639IY#PBF	1	ITE (Commercial)	2.375 V	OCP OVP UVLO	0.59 in	0.59 in	0.19 in	Surface Mount	88 %	133-BGA	15 mm	15 mm	133-BBGA Module	7 V	125 °C	-40 °C	Non-Isolated PoL Module	20 A	5.5 V	0.6 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R504 Reliability Data

LTM4639EY#PBF | Datasheet