Products
LT1339
PRODUCTIONHigh Power Synchronous DC/DC Controller
- Part Models
- 6
- 1ku List Price
- Starting From $7.90
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Overview
- High Voltage: Operation Up to 60V
- High Current: Dual N-Channel Synchronous Drive Handles Up to 10,000pF Gate Capacitance
- Programmable Average Load Current Limiting
- 5V Reference Output with 10mA External Loading Capability
- Programmable Fixed Frequency Synchronizable Current Mode Operation Up to 150kHz
- Undervoltage Lockout with Hysteresis
- Programmable Start Inhibit for Power Supply Sequencing and Protection
- Adaptive Nonoverlapping Gate Drive Prevents Shoot-Through
The LT1339 is a high power synchronous current mode switching regulator controller. The IC drives dual N-channel MOSFETs to create a single IC solution for high power DC/DC converters in applications up to 60V.
The LT1339 incorporates programmable average current limiting, allowing accurate limiting of DC load current independent of inductor ripple current. The IC also incorporates user-adjustable slope compensation for minimization of magnetics at duty cycles up to 90%.
The LT1339 timing oscillator operating frequency is programmable and can be synchronized up to 150kHz. Minimum off-time operation provides main switch protection. The IC also incorporates a soft start feature that is gated by both shutdown and undervoltage lockout conditions.
An output phase reversal pin allows flexibility in configuration of converter types, including inverting and negative topologies.
Applications
- 48V Telecom Power Supplies
- Personal Computers and Peripherals
- Distributed Power Converters
- Industrial Control Systems
- Lead-Acid Battery Backup Systems
- Automotive and Heavy Equipment
Documentation
Data Sheet 1
User Guide 3
Application Note 2
Design Note 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 |
|---|---|---|---|
| LT1339CN#PBF | 20-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1339CSW#PBF | 20-Lead SOIC (Wide 0.3 Inch) | ||
| LT1339CSW#TRPBF | 20-Lead SOIC (Wide 0.3 Inch) | ||
| LT1339IN#PBF | 20-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1339ISW#PBF | 20-Lead SOIC (Wide 0.3 Inch) | ||
| LT1339ISW#TRPBF | 20-Lead SOIC (Wide 0.3 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 7, 2019 - 19_0046 Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek |
||
| LT1339CN#PBF | PRODUCTION | |
| LT1339IN#PBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0176 Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL |
||
| LT1339CSW#PBF | PRODUCTION | |
| LT1339CSW#TRPBF | PRODUCTION | |
| LT1339ISW#PBF | PRODUCTION | |
| LT1339ISW#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LT1339
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
LT1339CN | Synchronous DC/DC High Power Controller, 28VIN to 5VOUT @ 50A
Resources
LT1339CN Demo Board | Synchronous Buck, 48VIN to 12VOUT @ 50A
Resources
LT1339CN | High Power Synchronous DC/DC Converter 48VIN to 12VOUT @ 20A
Resources
LT1339, LTC1693, LT1431 Isolated Demo Board | Telecom Module, 36 to 72VIN, 5V or 3.3VOUT @ 10A
Resources
LT1339, LT1373, LT1431 | 32VIN to 12VOUT @ 15A, -5VOUT @ 100mA
Resources
LT1339CSW/LT1082CQ | Buck Controller, 4.5V to 60VIN, 3.3V/5V/7V/ 12VOUT @ 3Amp (thru-hole caps)
Resources
LT1339CN | High Power Synchronous DC/DC Converter 48VIN to 5VOUT @ 20A