LTC1754
LTC1754
PRODUCTIONMicropower, Regulated 3.3V/5V Charge Pump with Shutdown in SOT-23
- Part Models
- 4
- 1ku List Price
- Starting From $2.72
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Overview
- Ultralow Power: IIN = 13µA
- Regulated Output Voltage: 3.3V ±4%, 5V ±4%
- 5V Output Current: 50mA (VIN ≥ 3.0V)
- 3.3V Output Current: 40mA (VIN ≥ 2.5V)
- No Inductors Needed
- Very Low Shutdown Current: <1µA
- Shutdown Disconnects Load from VIN
- 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 VIN and VOUT) 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 VOUT 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
Documentation
Data Sheet 1
Design Note 1
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 | ||
| LTC1754ES6-3.3#TRPBF | 6-Lead TSOT-23 | ||
| LTC1754ES6-5#TRMPBF | 6-Lead TSOT-23 | ||
| LTC1754ES6-5#TRPBF | 6-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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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.