LTC1517-5 - Micropower, Regulated 5V Charge Pump in a 5-Pin SOT-23 Package
Datasheet 
DocumentationDatasheet
Spec Notice
Reliability Data
cad_symbol
Features
- Ultralow Power: ICC = 6µA Typ
- Short-Circuit/Thermal Protected
- 5V ±4% Regulated Output
- VIN Range: 2.7V to 5V
- Output Current:
10mA (VIN >/= 2.7V)
20mA (VIN >/= 3V) - No Inductors
- Ultrasmall Application Circuit (0.045in²)
- 800kHz Switching Frequency
- Available in 5-Pin SOT-23
Typical Application
Description
The LTC1517-5 is a micropower charge pump DC/DC converter that produces a regulated 5V output. The input voltage range is 2.7V to 5V. Extremely low operating current (typically 6µA with no load) and low external parts count (one 0.1µF flying capacitor and two small bypass capacitors at VIN and VOUT) make the part ideally suited for small, light load battery-powered applications. The total printed circuit board area of the application circuit shown below is only 0.045in2.The part operates as a Burst Mode’ switched-capacitor voltage doubler to produce a regulated output. The part has thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. The device is available in a 5-pin SOT-23 package.SOT-23
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC1517CS5-3.3#PBF | SOT | 5 | C | $2.57 | |
| LTC1517CS5-3.3#TRMPBF | SOT | 5 | C | $2.57 | $2.02 |
| LTC1517CS5-3.3#TRPBF | SOT | 5 | C | $2.57 | $2.00 |
| LTC1517CS5-5#PBF | SOT | 5 | C | $2.57 | |
| LTC1517CS5-5#TRMPBF | SOT | 5 | C | $2.57 | $2.02 |
| LTC1517CS5-5#TRPBF | SOT | 5 | C | $2.57 | $2.00 |
| LTC1517ES5-3.3#PBF | SOT | 5 | E | $2.31 | |
| LTC1517ES5-3.3#TRMPBF | SOT | 5 | E | $2.31 | $2.13 |
| LTC1517ES5-3.3#TRPBF | SOT | 5 | E | $2.31 | $2.11 |
| LTC1517ES5-5#PBF | SOT | 5 | E | $2.31 | |
| LTC1517ES5-5#TRMPBF | SOT | 5 | E | $2.31 | $2.13 |
| LTC1517ES5-5#TRPBF | SOT | 5 | E | $2.31 | $2.11 |
| LTC1517CS5-3.3 | SOT | 5 | C | $5.14 | |
| LTC1517CS5-3.3#TR | SOT | 5 | C | $5.14 | $4.00 |
| LTC1517CS5-5 | SOT | 5 | C | $5.14 | |
| LTC1517CS5-5#TR | SOT | 5 | C | $5.14 | $4.00 |
| LTC1517ES5-3.3 | SOT | 5 | E | $4.62 | |
| LTC1517ES5-3.3#TR | SOT | 5 | E | $4.62 | $4.22 |
| LTC1517ES5-5 | SOT | 5 | E | $4.62 | |
| LTC1517ES5-5#TR | SOT | 5 | E | $4.62 | $4.22 |
| LTC1517CS5-3.3#TRM | SOT | 5 | C | $5.14 | $4.04 |
| LTC1517CS5-5#TRM | SOT | 5 | C | $5.14 | $4.04 |
| LTC1517ES5-3.3#TRM | SOT | 5 | E | $4.62 | $4.26 |
| LTC1517ES5-5#TRM | SOT | 5 | E | $4.62 | $4.26 |
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 |
|---|---|---|---|
| DC174A-A | LTC1517CS5-5 Demo Board | MICROPOWER REGULATED 5V CHARGE PUMP DC/DC CONVERTER | Contact Factory | |
| DC174A-B | LTC1517CS5-3.3 Demo Board | MICROPOWER REGULATED 5V CHARGE PUMP DC/DC CONVERTER | $75.00 |