LTM4638IY

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Analog Devices Inc./Maxim Integrated

20VIN, 15A STEP-DOWN DC/DC ΜMODULE REGULATOR

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LTM4638IY

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Analog Devices Inc./Maxim Integrated

20VIN, 15A STEP-DOWN DC/DC ΜMODULE REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTM4638 Series

The LTM4638 is a complete 15A step-down switching mode µModule (power module) regulator in a tiny 6.25mm × 6.25mm × 5.02mm BGA package. Included in the package are the switching controller, power FETs, inductor and support components. Operating over an input voltage range of 3.1V to 20V, the LTM4638 supports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Its high efficiency design delivers up to 15A continuous output current. Only bulk input and output capacitors are needed.The LTM4638 supports selectable discontinuous mode operation and output voltage tracking for supply rail sequencing. Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.Fault protection features include overvoltage, overcurrent and overtemperature protection.The LTM4638 is available with SnPb or RoHS compliant terminal finish.ApplicationsTelecom, Datacom, Networking and Industrial EquipmentMedical Diagnostic EquipmentData Storage Rack Units and CardsTest and Debug Systems

Technical Specifications

Parameters and characteristics for this part

Specification	LTM4638IY

Applications	ITE (Commercial)
Current - Output (Max)	15 A
Features	Remote On/Off, Load Sharing, Remote Sense, Adjustable Output
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package / Case	49-BFBGA Module
Package Length	6.25 mm
Package Name	49-BGA
Package Width	6.25 mm
Size / Dimension Height	0.2 in
Size / Dimension Length	0.25 in
Size / Dimension Width	0.25 in
Type	Non-Isolated PoL Module
Voltage - Input (Max)	20 V
Voltage - Input (Min)	3.1 V
Voltage - Output 1 (Max)	5.5 V
Voltage - Output 1 (Min)	0.6 V

LTM4638 Series

Part	Board Type	Total Output Count	Output Type	Non-Isolated Output Count	Supplied Contents	Voltage - Output	Utilized IC / Part	Current - Output	Regulator Topology	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Frequency - Switching	Contents	Main Purpose	Voltage - Input (Max)	Voltage - Output 1 (Max)	Voltage - Output 1 (Min)	Type	Operating Temperature (Max)	Operating Temperature (Min)	Package Name	Package Width	Package Length	Mounting Type	Features	Applications	Size / Dimension Width	Size / Dimension Height	Size / Dimension Length	Voltage - Input (Min)	Current - Output (Max)	Number of Outputs	Package / Case
Analog Devices Inc./Maxim Integrated DC2665B-B	Fully Populated	1	Non-Isolated	1 count	Board(s)	1 V	LTM4638	15 A	Buck	3.1 V	20 V	600 kHz	Board	DC/DC Step Down
Analog Devices Inc./Maxim Integrated LTM4638EY#PBF															20 V	5.5 V	0.6 V	Non-Isolated PoL Module	125 °C	-40 °C	49-BGA	6.25 mm	6.25 mm	Surface Mount	OCP OTP OVP UVLO	ITE (Commercial)	0.25 in	0.21 in	0.25 in	3.1 V	15 A	1	49-BFBGA Module
Analog Devices Inc./Maxim Integrated LTM4638IY															20 V	5.5 V	0.6 V	Non-Isolated PoL Module	125 °C	-40 °C	49-BGA	6.25 mm	6.25 mm	Surface Mount	Adjustable Output Load Sharing Remote On/Off Remote Sense	ITE (Commercial)	0.25 in	0.2 in	0.25 in	3.1 V	15 A	1	49-BFBGA Module
Analog Devices Inc./Maxim Integrated LTM4638IY#PBF															20 V	5.5 V	0.6 V	Non-Isolated PoL Module	125 °C	-40 °C	49-BGA	6.25 mm	6.25 mm	Surface Mount	OCP OTP OVP UVLO	ITE (Commercial)	0.25 in	0.21 in	0.25 in	3.1 V	15 A	1	49-BFBGA Module

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTM4638IY | Datasheet

DC2665B-B - Demo Manual (Rev.0)

Package Drawing - 49-Lead BGA (6.25mm x 6.25mm x 5.02mm)

R583 Reliability Data