Datasheet
Reliability Data
cad_symbol
ltspice
Features
- Fixed Output Voltages: -3V, -5V or Low Noise VIN to -VIN Inverted Output
- ±4% Output Voltage Accuracy
- Low Quiesient 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
Typical Application
Description
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.
SOT-23
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC1983ES6-3#PBF | SOT | 6 | E | $2.13 | |
| LTC1983ES6-3#TRMPBF | SOT | 6 | E | $2.17 | $1.83 |
| LTC1983ES6-3#TRPBF | SOT | 6 | E | $2.17 | $1.81 |
| LTC1983ES6-5#PBF | SOT | 6 | E | $2.13 | |
| LTC1983ES6-5#TRMPBF | SOT | 6 | E | $2.17 | $1.83 |
| LTC1983ES6-5#TRPBF | SOT | 6 | E | $2.17 | $1.81 |
| LTC1983ES6-3 | SOT | 6 | E | $4.26 | |
| LTC1983ES6-3#TR | SOT | 6 | E | $4.34 | $3.62 |
| LTC1983ES6-5 | SOT | 6 | E | $4.26 | |
| LTC1983ES6-5#TR | SOT | 6 | E | $4.34 | $3.62 |
| LTC1983ES6-3#TRM | SOT | 6 | E | $4.34 | $3.66 |
| LTC1983ES6-5#TRM | SOT | 6 | E | $4.34 | $3.66 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC482A | LTC1983ES6-5 | 100mA Regulated Charge-Pump Inverter, 3V-5.5V Input, -5Vout, Iout up to 100mA Max. | $75.00 |