LTC3525L-3 Series

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

Catalog

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

Part	Current - Output	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Voltage - Output (Min/Fixed)	Output Type	Topology	Output Configuration	Package / Case	Supplier Device Package	Number of Outputs	Voltage - Input (Max) [Max]	Function
Analog Devices LTC3525ISC6-3.3#TRPBF	140 mA	1 V	-40 °C	125 ¯C	Surface Mount	3.3 V	1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525DISC6-3.3	140 mA	0.5 V	-40 °C	125 ¯C	Surface Mount	3.3 V	1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525LESC6-3#TRMPBF		0.5 V	-40 °C	85 °C	Surface Mount		1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525ESC6-5#TRPBF	175 mA	1 V	-40 °C	85 °C	Surface Mount	5 V	1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525ESC6-3#TRPBF	65 mA	1 V	-40 °C	85 °C	Surface Mount		1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525ESC6-3	65 mA	1 V	-40 °C	85 °C	Surface Mount		1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525ISC6-5#TRMPBF	175 mA	1 V	-40 °C	125 ¯C	Surface Mount	5 V	1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525ISC6-3.3#TRMPBF	140 mA	1 V	-40 °C	125 ¯C	Surface Mount	3.3 V	1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525ISC6-3#TRMPBF	65 mA	1 V	-40 °C	125 ¯C	Surface Mount		1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up
Analog Devices LTC3525ISC6-5#TRPBF	175 mA	1 V	-40 °C	125 ¯C	Surface Mount	5 V	1.81 mOhm	Boost	Positive	6-TSSOP SC-88 SOT-363	SC-70-6	1	4.5 V	Step-Up

Catalog

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

Key Features

• Up to 95% Efficiency

• Output Disconnect and Inrush Current Limit

• Fixed Output Voltages of 3V, 3.3V or 5V

• Delivers 65mA at 3V from a 1V Input

• Delivers 60mA at 3.3V from a 1V Input, or 140mA at 3.3V from a 1.8V Input

• Delivers 175mA at 5V from a 3V Input

• Burst Mode®Operation: IQ= 7μA

• Only Three External Components

• VIN> VOUTOperation

• <1μA Shutdown Current

• Antiringing Control

• Short-Circuit and Overtemperature Protection

• Very Low Profile of 1mm

• Tiny 6-Lead SC70 Package

Description

The LTC3525-3/LTC3525-3.3/LTC3525-5 are high efficiency synchronous step-up DC/DC converters with output disconnect that can start up with an input as low as 0.85V. They offer a compact, high efficiency alternative to charge pumps in single cell or dual cell alkaline or Li-Ion applications. Only three small external components are required. The LTC3525 is offered in fixed output voltages of 3V, 3.3V or 5V.The device includes a 0.5Ω N-channel MOSFET switch and a 0.8Ω P-channel synchronous rectifier. Peak switch current ranges from 150mA to 400mA, depending on load, providing enhanced efficiency. Quiescent current is an ultralow 7μA, maximizing battery life in portable applications.Other features include <1μA shutdown current, antiringing control and thermal shutdown. The LTC3525 is available in a tiny 6-Lead SC70 package.List of LTC3525 OptionsPART NAMEINPUT START-UP VOLTAGEOUTPUT VOLTAGEVOUTSTATUS IN SHUTDOWN MODELTC3525-30.85V3VOutput DisconnectLTC3525-3.30.85V3.3VOutput DisconnectLTC3525-50.85V5VOutput DisconnectLTC3525D-3.30.85V3.3VPass Through ModeLTC3525L-30.7V3VOutput DisconnectApplicationsMP3 PlayersPortable InstrumentsGlucose MetersDigital Cameras