LTM4639EY#PBF

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Analog Devices

LOW VIN20A DC/DC ΜMODULE (POWER MODULE) STEP-DOWN REGULATOR

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LTM4639EY#PBF

Active

Analog Devices

LOW VIN20A DC/DC ΜMODULE (POWER MODULE) STEP-DOWN REGULATOR

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DocumentsDatasheet R504 Reliability Data

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Technical Specifications

Parameters and characteristics for this part

Specification	LTM4639EY#PBF

Applications	ITE (Commercial)
Current - Output (Max) [Max]	20 A
Efficiency	88 %
Features	OVP, UVLO, OCP
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	133-BBGA Module
Size / Dimension [x]	0.59 in
Size / Dimension [x]	15 mm
Size / Dimension [y]	15 mm
Size / Dimension [y]	0.59 in
Size / Dimension [z]	4.9 mm
Size / Dimension [z]	0.19 in
Supplier Device Package	133-BGA (15x15)
Type	Non-Isolated PoL Module
Voltage - Input (Max) [Max]	7 V
Voltage - Input (Min) [Min]	2.375 V
Voltage - Output 1 [Max]	5.5 V
Voltage - Output 1 [Min]	0.6 V

LTM4639 Series

Low VIN20A DC/DC μModule (Power Module) Step-Down Regulator

Part	Package / Case	Features	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Number of Outputs	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Efficiency	Type	Size / Dimension [x]	Size / Dimension [z]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [y]	Size / Dimension [z]	Voltage - Output 1 [Max]	Voltage - Output 1 [Min]	Mounting Type	Applications	Current - Output (Max) [Max]
Analog Devices LTM4639IY	133-BBGA Module	OCP OVP UVLO	2.375 V	7 V	1	133-BGA (15x15)	125 °C	-40 °C	88 %	Non-Isolated PoL Module	0.59 in	4.9 mm	15 mm	15 mm	0.59 in	0.19 in	5.5 V	0.6 V	Surface Mount	ITE (Commercial)	20 A
Analog Devices LTM4639EY#PBF	133-BBGA Module	OCP OVP UVLO	2.375 V	7 V	1	133-BGA (15x15)	125 °C	-40 °C	88 %	Non-Isolated PoL Module	0.59 in	4.9 mm	15 mm	15 mm	0.59 in	0.19 in	5.5 V	0.6 V	Surface Mount	ITE (Commercial)	20 A
Analog Devices LTM4639IY#PBF	133-BBGA Module	OCP OVP UVLO	2.375 V	7 V	1	133-BGA (15x15)	125 °C	-40 °C	88 %	Non-Isolated PoL Module	0.59 in	4.9 mm	15 mm	15 mm	0.59 in	0.19 in	5.5 V	0.6 V	Surface Mount	ITE (Commercial)	20 A

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tray	1	$ 39.20
		5	$ 36.96
		10	$ 36.03
		25	$ 34.84
		40	$ 34.25
		80	$ 33.39
		230	$ 32.12
Newark	Each	1	$ 38.90
		5	$ 37.46
		10	$ 36.85
		25	$ 36.06
		50	$ 35.66
		100	$ 34.92
		250	$ 34.18

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