LTC3545IUD#PBF

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Analog Devices

TRIPLE 800MA SYNCHRONOUS STEP-DOWN REGULATOR - 2.25MHZ

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DocumentsR415 Reliability Data Datasheet

LTC3545IUD#PBF

Active

Analog Devices

TRIPLE 800MA SYNCHRONOUS STEP-DOWN REGULATOR - 2.25MHZ

Deep-Dive with AI

DocumentsR415 Reliability Data Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3545IUD#PBF

Current - Output	800 mA
Frequency - Switching	2.25 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	3
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	16-WFQFN Exposed Pad
Supplier Device Package	16-QFN (3x3)
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

LTC3545LTC3545-1 Series

Triple 800mA Synchronous Step-Down Regulator - 2.25MHz

Part	Voltage - Input (Max) [Max]	Function	Supplier Device Package	Package / Case	Mounting Type	Topology	Operating Temperature [Min]	Operating Temperature [Max]	Current - Output	Frequency - Switching	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Synchronous Rectifier	Number of Outputs	Voltage - Input (Min) [Min]	Output Type	Output Configuration
Analog Devices LTC3545EUD#TRPBF	5.5 V	Step-Down	16-QFN (3x3)	16-WFQFN Exposed Pad	Surface Mount	Buck	-40 °C	125 ¯C	800 mA	2.25 MHz	5.5 V	0.6 V		3	2.25 V	Adjustable	Positive
Analog Devices LTC3545IUD#PBF	5.5 V	Step-Down	16-QFN (3x3)	16-WFQFN Exposed Pad	Surface Mount	Buck	-40 °C	125 ¯C	800 mA	2.25 MHz	5.5 V	0.6 V		3	2.25 V	Adjustable	Positive

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	$ 11.81
		10	$ 8.29
		25	$ 7.39
		100	$ 6.38
		250	$ 5.89
		500	$ 5.59
		1000	$ 5.34

Description

General part information

LTC3545LTC3545-1 Series

The LTC3545/LTC3545-1 are triple, high efficiency, monolithic synchronous buck regulators using a constant frequency, current mode architecture. The regulators operate independently with separate run pins. The 2.25V to 5.5V input voltage range makes the LTC3545/LTC3545-1 well suited for single Li-Ion battery-powered applications. Low ripple pulse skip mode or high efficiency Burst Mode operation is externally selectable. PWM pulse skip mode operation provides very low output ripple voltage while Burst Mode operation increases efficiency at low output loads.Switching frequency is internally set to 2.25MHz, or the switching frequency can be synchronized to an external 1MHz to 3MHz clock. Power good indicators easily allow power on sequencing between the three regulators.The internal synchronous switches increase efficiency and eliminate external Schottky diodes. Low output voltages are supported with the 0.6V feedback reference voltage.The LTC3545-1 replaces the SYNC/MODE function with a third PGOOD pin and forces Burst Mode operation.ApplicationsSmart PhonesWireless and DSL ModemsDigital Still CamerasPortable InstrumentsPoint of Load Regulation