LTC1514
LTC1514
PRODUCTIONStep-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator
- Part Models
- 8
- 1ku List Price
- Starting From $6.38
Viewing:
Overview
- 3.3V or 5V Output Voltages
- 2V to 10V Input Voltage Range
- Up to 50mA Output Current
- Only Three External Capacitors Required
- Soft Start Limits Inrush Current at Turn-On
- Low Operating Current: 60µA
- Low Shutdown Current: 10µA
- Shutdown Disconnects Load from VIN
- Short-Circuit and Overtemperature Protected
- 650kHz Switching Frequency
- Low-Battery Comparator Active in Shutdown
- Available in SO-8 Package
The LTC1514-3.3/LTC1514-5 are micropower switched capacitor DC/DC converters that produce a regulated output voltage by either stepping up or stepping down the input voltage. Output voltage is fixed at either 3.3V (LTC1514-3.3) or 5V (LTC1514-5) by an internal resistor divider.
A unique architecture allows the parts to accommodate a wide input voltage range (2V to 10V) while maintaining +4% regulation. Additional circuitry prevents excessive inrush current and output voltage ripple when large VIN to VOUT differentials are present.
An internal uncommitted comparator is kept active in shutdown. The comparator has an open-drain output for flexible interfacing.
The parts are short-circuit and overtemperature protected. Battery life is maximized by very low operating currents (ICC= 60µA typ, 10µA in shutdown). Both parts are available in an SO-8 package.
Applications
- Battery Operated Equipment
- Smart Card Readers
- Local Power Supplies
- Handheld Instruments
- Battery Backup Supplies
Documentation
Data Sheet 1
Application Note 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 |
|---|---|---|---|
| LTC1514CS8-3.3#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514CS8-3.3#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514CS8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514CS8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-3.3#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-3.3#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LTC1514CS8-3.3#PBF | PRODUCTION | |
| LTC1514CS8-3.3#TRPBF | PRODUCTION | |
| LTC1514CS8-5#PBF | PRODUCTION | |
| LTC1514CS8-5#TRPBF | PRODUCTION | |
| LTC1514IS8-3.3#PBF | PRODUCTION | |
| LTC1514IS8-3.3#TRPBF | PRODUCTION | |
| LTC1514IS8-5#PBF | PRODUCTION | |
| LTC1514IS8-5#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1514CS8-3.3#PBF | PRODUCTION | |
| LTC1514CS8-3.3#TRPBF | PRODUCTION | |
| LTC1514CS8-5#PBF | PRODUCTION | |
| LTC1514CS8-5#TRPBF | PRODUCTION | |
| LTC1514IS8-3.3#PBF | PRODUCTION | |
| LTC1514IS8-3.3#TRPBF | PRODUCTION | |
| LTC1514IS8-5#PBF | PRODUCTION | |
| LTC1514IS8-5#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1514CS8-3.3#PBF | PRODUCTION | |
| LTC1514CS8-3.3#TRPBF | PRODUCTION | |
| LTC1514CS8-5#PBF | PRODUCTION | |
| LTC1514CS8-5#TRPBF | PRODUCTION | |
| LTC1514IS8-3.3#PBF | PRODUCTION | |
| LTC1514IS8-3.3#TRPBF | PRODUCTION | |
| LTC1514IS8-5#PBF | PRODUCTION | |
| LTC1514IS8-5#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC1514-3.3
- LTC1514-5
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
No discussions on LTC1514 yet. Have something to say?
Start a Discussion on EngineerZone®