LTC3375
RECOMMENDED FOR NEW DESIGNS8-Channel Programmable, Parallelable 1A Buck DC/DCs
- Part Models
- 6
- 1ku List Price
- Starting From $8.20
Overview
- 8-Channel Independent Step-Down DC/DCs
- Master-Slave Configurable for Up to 4A Per Output Channel with a Single Inductor
- Independent VIN Supply for Each DC/DC (2.25V to 5.5V)
- All DC/DCs Have 0.425V to VIN Output Voltage Range
- Precision Enable Pin Thresholds for Autonomous Sequencing (or I2C Control)
- 1MHz to 3MHz Programmable/Synchronizable Oscillator Frequency (2MHz Default)
- I2C Selectable Phasing (90° Steps) Per Channel
- Programmable Power-On Reset/Watch Dog/Pushbutton Timing
- Die Temperature Monitor Output
- 48-Lead (7mm × 7mm) QFN Package
The LTC3375 is a digitally programmable high efficiency multioutput power supply IC. The DC/DCs consist of eight synchronous buck converters (IOUT up to 1A each) all powered from independent 2.25V to 5.5V input supplies.
DC/DC enables, output voltages, operating modes, and phasing may all be independently programmed over I2C or used in standalone mode via simple I/O with power-up defaults. The DC/DCs may be used independently or in parallel to achieve higher output currents of up to 4A per output with a shared inductor. Alarm levels for high die temperature may also be programmed via I2C with a maskable IRQ output for monitoring DC/DC and system faults.
Pushbutton ON/OFF/RESET control, power-on reset, and a watchdog timer provide flexible and reliable power-up sequencing and system monitoring. The LTC3375 is available in a low profile 48-lead 7mm × 7mm QFN package.
Applications
- General Purpose Multichannel Power Supplies
- Industrial/Automotive/Communications
Documentation
Data Sheet 1
User Guide 1
Design Note 1
Technical Articles 2
Video 1
Brochure 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 |
|---|---|---|---|
| LTC3375EUK#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3375EUK#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3375HUK#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3375HUK#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3375IUK#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3375IUK#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC3375
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
LTC3375EUK Demo Board 8-Channel Programmable, Parallelable, 1A Buck DC/DCs (DC590 Companion board)
Resources
Reference Designs
NXP iMX6 Platform EVK Hardware Verified Design for IO and Robust Power Supply