LT1308
PRODUCTIONSingle Cell High Current Micropower 600kHz Boost DC/DC Converter
- Part Models
- 4
- 1ku List Price
- Starting From $6.30
Overview
- 5V at 1A from a Single Li-Ion Cell
- 3.3V at 300mA from a Single NiCd Cell
- Low Quiescent Current: 100µA
- Operates with VIN as Low as 1V
- Fixed Frequency Operation: 600kHz
- Current Mode PWM Delivers Low Output Ripple
- Guaranteed Start-Up into Full Load
- Low Shutdown Current: 3µA
- Low-Battery Comparator
- Automatic Burst Mode™ Operation at Light Load
- Low VCESAT Switch: 300mV at 2A
The LT1308 is a micropower, fixed frequency boost DC/DC converter that operates from an input voltage as low as 1V. Capable of delivering 5V at load current of 1A from a single Li-Ion cell, the LT1308 also features power saving Burst Mode operation at light loads. High efficiency is maintained over a broad 1mA to 1A load range.
The device contains a low-battery detector with a 200mV reference and shuts down to less than 5µA quiescent current. No-load quiescent current is 100µA and the internal NPN power switch handles a 2A current with a voltage drop of just 300mV.
High frequency 600kHz switching allows the use of small, surface mount components. The LT1308's current mode architecture provides fast response to load and line variations. The device is available in an 8-lead SO package.
| Features | |
| LT1308 | Not Recommended For New Designs |
| LT1308A | Improved Transient Response, Burst Mode |
| LT1308B | Improved Transient Response, Burst Mode Disabled |
Applications
- GSM Terminals
- Digital Cameras
- Answer-Back Pagers
- Cordless Telephones
- DECT Phones
- GPS Receivers
- Battery Backup Supplies
Documentation
Data Sheet 1
Technical Articles 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 |
|---|---|---|---|
| LT1308CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1308CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1308IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1308IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LT1308CS8#PBF | PRODUCTION | |
| LT1308CS8#TRPBF | PRODUCTION | |
| LT1308IS8#PBF | PRODUCTION | |
| LT1308IS8#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2) |
||
| LT1308CS8#PBF | PRODUCTION | |
| LT1308CS8#TRPBF | PRODUCTION | |
| LT1308IS8#PBF | PRODUCTION | |
| LT1308IS8#TRPBF | PRODUCTION | |
|
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LT1308CS8#PBF | PRODUCTION | |
| LT1308CS8#TRPBF | PRODUCTION | |
| LT1308IS8#PBF | PRODUCTION | |
| LT1308IS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
|
LT1308A LT1308B |
Single Cell High Current Micropower 600kHz Boost DC/DC Converter |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LT1308A
- LT1308B
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.