LTC1754

PRODUCTION

Micropower, Regulated 3.3V/5V Charge Pump with Shutdown in SOT-23

Part Models: 4
1ku List Price: Starting From $2.15

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Overview

Ultralow Power: I_IN = 13µA
Regulated Output Voltage: 3.3V ±4%, 5V ±4%
5V Output Current: 50mA (V_IN ≥ 3.0V)
3.3V Output Current: 40mA (V_IN ≥ 2.5V)
No Inductors Needed
Very Low Shutdown Current: <1µA
Shutdown Disconnects Load from V_IN
Internal Oscillator: 600kHz
Short-Circuit and Overtemperature Protected
Ultrasmall Application Circuit: (0.052 Inch²)
6-Pin SOT-23 Package

The LTC1754 is a micropower charge pump DC/DC converter that produces a regulated output. The input voltage range is 2V to 4.4V for 3.3V output and 2.7V to 5.5V for 5V output. Extremely low operating current and a low external parts count (one flying capacitor and two small bypass capacitors at V_IN and V_OUT) make the LTC1754 ideally suited for small, battery-powered applications. The total component area of the application circuit shown below is only 0.052 inch².

The LTC1754 operates as a Burst Mode^™ switched capacitor voltage doubler to produce a regulated output. It has thermal shutdown capability and can survive a continuous short circuit from V_OUT to GND.

The LTC1754 is available in a 6-pin SOT-23 package.

Applications

SIM Interface Supplies for GSM Cellular Telephones
White LED Power Supplies
Li-Ion Battery Backup Supplies
Handheld Computers
Smart Card Readers
PCMCIA Local 5V Supplies

Part Models: 4
1ku List Price: Starting From $2.15

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC1754ES6-3.3#TRMPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1754ES6-3.3#TRPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1754ES6-5#TRMPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1754ES6-5#TRPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC1754-3.3
LTC1754-5

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Latest Discussions

2 Years Ago

Overview

Documentation

Data Sheet 1

Reliability Data 1

Design Note 1