LTC3612IFE#TRPBF

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Analog Devices

3A, 4MHZ MONOLITHIC SYNCHRONOUS STEP-DOWN DC/DC CONVERTER

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LTC3612IFE#TRPBF

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Analog Devices

3A, 4MHZ MONOLITHIC SYNCHRONOUS STEP-DOWN DC/DC CONVERTER

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DocumentsTape and Reel Packaging LTpowerPlanner III Quick Start Guide +3

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC3612IFE#TRPBF

Current - Output	3 A
Frequency - Switching [Max]	4 MHz
Frequency - Switching [Min]	300 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-55 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case [custom]	4.4 mm, 0.173 in
Package / Case [custom]	Exposed Pad
Package / Case [custom]	20-TSSOP
Supplier Device Package	20-TSSOP-EP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.25 V
Voltage - Output (Max) [Max]	5.5 V
Voltage - Output (Min/Fixed)	0.6 V

LTC3612 Series

3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

Part	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Supplier Device Package	Mounting Type	Topology	Output Type	Output Configuration	Number of Outputs	Function	Current - Output	Package / Case [custom]	Package / Case [custom]	Package / Case [custom]	Package / Case
Analog Devices LTC3612EFE#PBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-TSSOP-EP	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3612MPUDC#TRPBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-QFN (3x4)	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A				20-WFQFN Exposed Pad
Analog Devices LTC3612MPFE#PBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-TSSOP-EP	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3612HUDC	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-QFN (3x3)	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A				20-WFQFN Exposed Pad
Analog Devices LTC3612IFE#TRPBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-TSSOP-EP	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3612HUDC#TRPBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-QFN (3x4)	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A				20-WFQFN Exposed Pad
Analog Devices LTC3612HFE#PBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-TSSOP-EP	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3612MPFE#TRPBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-TSSOP-EP	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3612EUDC#PBF	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-QFN (3x4)	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A				20-WFQFN Exposed Pad
Analog Devices LTC3612EUDC	0.6 V	5.5 V	4 MHz	300 kHz	-55 °C	150 °C	2.25 V	5.5 V	20-QFN (3x3)	Surface Mount	Buck	Adjustable	Positive	1	Step-Down	3 A				20-WFQFN Exposed Pad

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 5.71

Description

General part information

LTC3612 Series

The LTC3612 is a low quiescent current monolithic synchronous buck regulator using a current mode, constant frequency architecture. The no-load DC supply current in sleep mode is only 70μA while maintaining the output voltage (Burst Mode operation) at no load, dropping to zero current in shutdown. The 2.25V to 5.5V input supply voltage range makes the LTC3612 ideally suited for single Li-Ion as well as fixed low voltage input applications. 100% duty cycle capability provides low dropout operation, extending the operating time in battery-powered systems.The operating frequency is externally programmable up to 4MHz, allowing the use of small surface mount inductors. For switching noise-sensitive applications, the LTC3612 can be synchronized to an external clock at up to 4MHz.Forced continuous mode operation in the LTC3612 reduces noise and RF interference. Adjustable compensation allows the transient response to be optimized over a wide range of loads and output capacitors.The internal synchronous switch increases efficiency and eliminates the need for an external catch diode, saving external components and board space. The LTC3612 is offered in a leadless 20-pin 3mm × 4mm QFN or a thermally enhanced 20-pin TSSOP package.APPLICATIONSPoint-of-Load SuppliesDistributed Power SuppliesPortable Computer SystemsDDR Memory TerminationHandheld Devices

Documents

Technical documentation and resources

Tape and Reel Packaging

LTpowerPlanner III Quick Start Guide

Datasheet

LTC3612: 3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter Data Sheet (Rev.D)

Data Sheet

R457 Reliability Data

Reliability Data