LTC3546EFE

Obsolete

Analog Devices

IC REG BUCK ADJ 1A/2A DL 28TSSOP

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LTC3546EFE

Obsolete

Analog Devices

IC REG BUCK ADJ 1A/2A DL 28TSSOP

Deep-Dive with AI

DocumentsDatasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3546EFE

Current - Output	1 A, 2 A
Frequency - Switching	2.25 MHz
Frequency - Switching [Max]	4 MHz
Frequency - Switching [Min]	750 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	Exposed Pad, 28-TSSOP
Package / Case [custom]	4.4 mm
Package / Case [x]	0.173 in
Supplier Device Package	28-TSSOP-EP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.3 V
Voltage - Output (Max)	5 V
Voltage - Output (Min/Fixed)	0.6 V

LTC3546 Series

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator

Part	Output Configuration	Output Type	Operating Temperature [Min]	Operating Temperature [Max]	Function	Topology	Voltage - Input (Max) [Max]	Number of Outputs	Voltage - Input (Min) [Min]	Voltage - Output (Max)	Package / Case	Package / Case [custom]	Package / Case [x]	Voltage - Output (Min/Fixed)	Current - Output	Mounting Type	Supplier Device Package	Frequency - Switching [Min]	Frequency - Switching [Max]	Frequency - Switching
Analog Devices LTC3546EFE	Positive	Adjustable	-40 °C	125 ¯C	Step-Down	Buck	5.5 V	2	2.3 V	5 V	28-TSSOP Exposed Pad	4.4 mm	0.173 in	0.6 V	1 A 2 A	Surface Mount	28-TSSOP-EP	750 kHz	4 MHz	2.25 MHz
Analog Devices LTC3546IUFD#PBF	Positive	Adjustable	-40 °C	125 ¯C	Step-Down	Buck	5.5 V	2	2.3 V	5 V	28-WFQFN Exposed Pad			0.6 V	1 A 2 A	Surface Mount	28-QFN (4x5)	750 kHz	4 MHz	2.25 MHz
Analog Devices LTC3546EUFD#PBF	Positive	Adjustable	-40 °C	125 ¯C	Step-Down	Buck	5.5 V	2	2.3 V	5 V	28-WFQFN Exposed Pad			0.6 V	1 A 2 A	Surface Mount	28-QFN (4x5)	750 kHz	4 MHz	2.25 MHz
Analog Devices LTC3546IFE#TRPBF	Positive	Adjustable	-40 °C	125 ¯C	Step-Down	Buck	5.5 V	2	2.3 V	5 V	28-TSSOP Exposed Pad	4.4 mm	0.173 in	0.6 V	1 A 2 A	Surface Mount	28-TSSOP-EP	750 kHz	4 MHz	2.25 MHz
Analog Devices LTC3546EUFD#TRPBF	Positive	Adjustable	-40 °C	125 ¯C	Step-Down	Buck	5.5 V	2	2.3 V	5 V	28-WFQFN Exposed Pad			0.6 V	1 A 2 A	Surface Mount	28-QFN (4x5)	750 kHz	4 MHz	2.25 MHz
Analog Devices LTC3546EFE#PBF	Positive	Adjustable	-40 °C	125 ¯C	Step-Down	Buck	5.5 V	2	2.3 V	5 V	28-TSSOP Exposed Pad	4.4 mm	0.173 in	0.6 V	1 A 2 A	Surface Mount	28-TSSOP-EP	750 kHz	4 MHz	2.25 MHz

Pricing

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

Distributor	Package	Quantity	$

Description

General part information

LTC3546 Series

The LTC3546 is a dual, constant-frequency, synchronous step down DC/DC converter for medium power applications. The design consists of 2A and 1A primary output switches. In addition to the 2A/1A capability, a 1A dependant output switch can be externally connected to either of the primary outputs to produce 3A/1A dual regulator or 2A/2A dual regulator configurations.Supply operation is from 2.25V to 5.5V. The switching frequency can be set to 2.25MHz, adjustable from 0.75MHz to 4MHz, or synchronized to an external clock. Each output is adjustable from 0.6V to 5V and has output tracking on power-up. Internal synchronous low RDS(ON)power switches provide high efficiency without external Schottky diodes.User-selectable modes (Burst Mode®operation, pulse skipping and forced continuous) allow a trade-off between ripple noise and power efficiency. Burst Mode operation provides high efficiency at light loads. Pulse-skipping mode provides low ripple noise at light loads.The device is capable of low dropout configurations and both channels can operate at 100% duty cycle. In shutdown, the device draws <1μA.ApplicationsNetbooks/Ultra-Mobile PCsPC CardsWireless and DSL ModemsPoint of Load DC/DC Conversion

Documents

Technical documentation and resources