LTC3561EDD#PBF

Active

Analog Devices Inc./Maxim Integrated

DC-DC SWITCHING SYNCHRONOUS BUCK REGULATOR, ADJUSTABLE, 2.63 TO 5.5V IN, 0.8 TO 5V/1A OUT, DFN-EP-8

Find alt

Alpha

LTC3561EDD#PBF

Active

Analog Devices Inc./Maxim Integrated

DC-DC SWITCHING SYNCHRONOUS BUCK REGULATOR, ADJUSTABLE, 2.63 TO 5.5V IN, 0.8 TO 5V/1A OUT, DFN-EP-8

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3561 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

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3561EDD#PBF

Current - Output	1 A
Frequency - Switching	1 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-WFDFN Exposed Pad
Package Length	3 mm
Package Name	8-DFN
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	5.5 V
Voltage - Input (Min)	2.625 V
Voltage - Output (Max)	5 V
Voltage - Output (Min/Fixed)	0.8 V

LTC3561 Series

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

Part	Voltage - Input (Min)	Output Type	Function	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Max)	Package Width	Package Name	Package Length	Frequency - Switching	Synchronous Rectifier	Mounting Type	Output Configuration	Number of Outputs	Topology	Voltage - Input (Max)	Package / Case	Current - Output	Voltage - Output (Min/Fixed)
Analog Devices Inc./Maxim Integrated LTC3561EDD#PBF	2.625 V	Adjustable	Step-Down	85 °C	-40 °C	5 V	3 mm	8-DFN	3 mm	1 MHz	Yes	Surface Mount	Positive	1	Buck	5.5 V	8-WFDFN Exposed Pad	1 A	0.8 V
Analog Devices Inc./Maxim Integrated LTC3561EDD#TRPBF	2.625 V	Adjustable	Step-Down	85 °C	-40 °C	5 V	3 mm	8-DFN	3 mm	1 MHz	Yes	Surface Mount	Positive	1	Buck	5.5 V	8-WFDFN Exposed Pad	1 A	0.8 V

Pricing

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

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R415 Reliability Data

Technical Data Sheet EN