LTC3614HUDD#TRPBF

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Analog Devices Inc./Maxim Integrated

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

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LTC3614HUDD#TRPBF

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Analog Devices Inc./Maxim Integrated

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

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3614 Series

The LTC3614 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 75μA 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 LTC3614 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 LTC3614 can be synchronized to an external clock at up to 4MHz.Forced continuous mode operation in the LTC3614 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 LTC3614 is offered in a leadless 24-pin 3mm × 5mm thermally enhanced QFN package.ApplicationsPoint-of-Load SuppliesDistributed Power SuppliesPortable Computer SystemsDDR Memory TerminationHandheld Devices

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3614HUDD#TRPBF

Current - Output	4 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	24-WFQFN Exposed Pad
Package Length	3 mm
Package Name	24-QFN
Package Width	5 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	5.5 V
Voltage - Input (Min)	2.25 V
Voltage - Output (Max)	5.5 V
Voltage - Output (Min/Fixed)	0.6 V

LTC3614 Series

Part	Current - Output	Output Type	Frequency - Switching (Min)	Frequency - Switching (Max)	Output Configuration	Voltage - Input (Max)	Mounting Type	Voltage - Output (Min/Fixed)	Function	Synchronous Rectifier	Voltage - Input (Min)	Package / Case	Package Length	Package Name	Package Width	Topology	Operating Temperature (Min)	Operating Temperature (Max)	Number of Outputs	Voltage - Output (Max)
Analog Devices Inc./Maxim Integrated LTC3614EUDD	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614EUDD#TRPBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614HUDD#PBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614EUDD#PBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614MPUDD#PBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614MPUDD#TRPBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614IUDD#PBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614HUDD#TRPBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V
Analog Devices Inc./Maxim Integrated LTC3614IUDD#TRPBF	4 A	Adjustable	300 kHz	4 MHz	Positive	5.5 V	Surface Mount	0.6 V	Step-Down	Yes	2.25 V	24-WFQFN Exposed Pad	3 mm	24-QFN	5 mm	Buck	-55 °C	150 °C	1	5.5 V

Pricing

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CAD

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Documents

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R457 Reliability Data

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LTC3614HUDD#TRPBF | Datasheet