LTC3561AEDD#PBF

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Analog Devices

1A, 4MHZ, SYNCHRONOUS STEP-DOWN DC/DC CONVERTER

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DocumentsR415 Reliability Data Datasheet

LTC3561AEDD#PBF

Active

Analog Devices

1A, 4MHZ, SYNCHRONOUS STEP-DOWN DC/DC CONVERTER

Deep-Dive with AI

DocumentsR415 Reliability Data Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3561AEDD#PBF

Current - Output	1 A
Frequency - Switching	2.5 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-WFDFN Exposed Pad
Supplier Device Package	8-DFN (3x3)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.5 V
Voltage - Output (Max)	5 V
Voltage - Output (Min/Fixed)	0.8 V

LTC3561A Series

1A, 4MHz, Synchronous Step-Down DC/DC Converter

Part	Frequency - Switching	Voltage - Input (Max) [Max]	Output Configuration	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Supplier Device Package	Current - Output	Number of Outputs	Mounting Type	Synchronous Rectifier	Function	Voltage - Input (Min) [Min]	Voltage - Output (Max)	Package / Case	Topology	Output Type
Analog Devices LTC3561AEDD#PBF	2.5 MHz	5.5 V	Positive	-40 °C	125 ¯C	0.8 V	8-DFN (3x3)	1 A	1	Surface Mount		Step-Down	2.5 V	5 V	8-WFDFN Exposed Pad	Buck	Adjustable

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 6.94
		10	$ 4.71
		25	$ 4.14
		100	$ 3.49
		250	$ 3.18
		500	$ 2.99
		1000	$ 2.83
		2500	$ 2.66

Description

General part information

LTC3561A Series

The LTC3561 is a constant-frequency, synchronous, step-down DC/DC converter. Intended for medium power applications, it operates from a 2.63V to 5.5V input voltage range and has a user configurable operating frequency up to 4MHz, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height. The output voltage is adjustable from 0.8V to 5V. Internal synchronous 0.11Ω power switches with 1.4A peak current ratings provide high efficiency. The LTC3561’s current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors.To further maximize battery life, the P-channel MOSFET is turned on continuously in dropout (100% duty cycle). The no-load quiescent current is only 240µA. In shutdown, the device draws <1µA.ApplicationsWireless LAN PowerNotebook ComputersDigital CamerasCellular PhonesBoard Mounted Power Supplies