LTC1983
LTC1983
PRODUCTION100mA Regulated Charge-Pump Inverters in ThinSOT
- Part Models
- 4
- 1ku List Price
- Starting From $2.72
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Overview
- Fixed Output Voltages: –3V, –5V or Low Noise VIN to –VIN Inverted Output
- ±4% Output Voltage Accuracy
- Low Quiescent Current: 25µA
- 100mA Output Current Capability
- 2.3V to 5.5V Operating Voltage Range
- Internal 900kHz Oscillator
- "Zero Current" Shutdown
- Short-Circuit and Over-Temperature Protected
- Low Profile (1mm) ThinSOT™ Package
The LTC1983-3 and LTC1983-5 are inverting charge pump DC/DC converters that produce negative regulated outputs. The parts require only three tiny external capacitors and can provide up to 100mA of output current. The devices can operate in open loop mode (creating a –VIN supply) or regulated output mode depending on the input supply voltage and the output current.
The LTC1983-3/LTC1983-5 have many useful features for portable applications including very low quiescent current (25µA typical) and a zero current shutdown mode programmed through the SHDN pin.
The LTC1983-3/LTC1983-5 are over-temperature and short-circuit protected. The parts are available in a 6-pin low profile (1mm) ThinSOT package.
Applications
- –3V Generation in Single-Supply Systems
- Portable Equipment
- LCD Bias Supplies
- GaAs FET Bias Supplies
Documentation
Data Sheet 1
User Guide 1
Technical Articles 3
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 |
|---|---|---|---|
| LTC1983ES6-3#TRMPBF | 6-Lead TSOT-23 | ||
| LTC1983ES6-3#TRPBF | 6-Lead TSOT-23 | ||
| LTC1983ES6-5#TRMPBF | 6-Lead TSOT-23 | ||
| LTC1983ES6-5#TRPBF | 6-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC1983-3
- LTC1983-5
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.
Evaluation Kits
LTC1983ES6-5 | 100mA Regulated Charge-Pump Inverter, 3V to 5.5V Input, –5VOUT, IOUT up to 100mA Max.
Resources
Reference Designs
75 Watt, Single-Output Benchtop Power Supply