LTC3442EDE#PBF

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Analog Devices

CONV DC-DC 2.4V TO 5.5V SYNCHRONOUS NON-INVERTING/INVERTING/STEP UP/STEP DOWN SINGLE-OUT 2.4V TO 5.25V 1.2A 12-PIN DFN EP TUBE

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DocumentsDatasheet R415 Reliability Data

LTC3442EDE#PBF

Active

Analog Devices

CONV DC-DC 2.4V TO 5.5V SYNCHRONOUS NON-INVERTING/INVERTING/STEP UP/STEP DOWN SINGLE-OUT 2.4V TO 5.25V 1.2A 12-PIN DFN EP TUBE

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DocumentsDatasheet R415 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3442EDE#PBF

Current - Output	1.2 A
Frequency - Switching [Max]	2 MHz
Frequency - Switching [Min]	300 kHz
Function	Step-Up/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	12-WFDFN Exposed Pad
Supplier Device Package	12-DFN (4x3)
Synchronous Rectifier	True
Topology	Buck-Boost
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.4 V
Voltage - Output (Max) [Max]	5.25 V
Voltage - Output (Min/Fixed)	2.4 V

LTC3442 Series

Micropower Synchronous Buck-Boost DC/DC Converter with Automatic Burst Mode Operation

Part	Synchronous Rectifier	Voltage - Output (Max) [Max]	Number of Outputs	Mounting Type	Voltage - Input (Min) [Min]	Current - Output	Output Type	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Supplier Device Package	Package / Case	Function	Topology	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching [Max]	Frequency - Switching [Min]
Analog Devices LTC3442EDE#PBF		5.25 V	1	Surface Mount	2.4 V	1.2 A	Adjustable	5.5 V	2.4 V	12-DFN (4x3)	12-WFDFN Exposed Pad	Step-Up/Step-Down	Buck-Boost	Positive	85 °C	-40 °C	2 MHz	300 kHz
Analog Devices LTC3442EDE#PBF		5.25 V	1	Surface Mount	2.4 V	1.2 A	Adjustable	5.5 V	2.4 V	12-DFN (4x3)	12-WFDFN Exposed Pad	Step-Up/Step-Down	Buck-Boost	Positive	85 °C	-40 °C	2 MHz	300 kHz

Pricing

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

Distributor	Package	Quantity	$

Digikey	Bulk	40	$ 7.58
		40	$ 7.58
	Tube	1	$ 13.86
		1	$ 13.86
		10	$ 9.84
		10	$ 9.84
		25	$ 8.80
		25	$ 8.80
		100	$ 7.65
		100	$ 7.65
		250	$ 7.09
		250	$ 7.09
		500	$ 6.74
		500	$ 6.74
		1000	$ 6.56
		1000	$ 6.56
Newark	Each	1	$ 12.35
		10	$ 9.03
		25	$ 8.80
		50	$ 7.68
		182	$ 6.71

Description

General part information

LTC3442 Series

The LTC3442 is a highly efficient, fixed frequency, Buck-Boost DC/DC converter, which operates from input voltages above, below, and equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for a single Lithium-Ion or multicell alkaline applications where the output voltage is within the battery voltage range.The device includes two 0.10Ω N-channel MOSFET switches and two 0.10 Ohm P-channel switches. Operating frequency and average input current limit can each be programmed with an external resistor. Quiescent current is only 35µA in Burst Mode operation, maximizing battery life in portable applications. Automatic Burst Mode operation allows the user to program the load current for Burst Mode operation, or to control it manually.Other features include 1µA shutdown current, programmable soft-start, peak current limit and thermal shutdown. The LTC3442 is available in a low profile, thermally enhanced 12-lead (4mm × 3mm × 0.75mm) DFN package.ApplicationsPDA/'SMART' PhonesHandheld ComputersMP3 PlayersHandheld InstrumentsDigital CamerasWireless HandsetsUSB Peripherals