LT3380
RECOMMENDED FOR NEW DESIGNSMultioutput Power Management Solution with 4 Buck Switching and 3 LDO Linear Regulators with I2C
- Part Models
- 10
- 1ku List Price
- Starting From $6.71
Overview
- Quad I2C Adjustable High Efficiency Step-Down DC/DC Converters: 2.5A, 2.5A, 1.5A, 1.5A
- Three 300mA LDO Regulators (Two Adjustable)
- Independent Enable Pin-Strap or I2C Sequencing
- Programmable Autonomous Power-Down Control
- Warnings and Faults
- IRQ Pin and IRQ Status Register
- Power Good Pin and Status Register
- 150°C TJ Operation (LT3380H)
- Dynamic Voltage Scaling
- Selectable 2.25MHz or 1.12MHz Switching Frequency
- 12µA Standby Current
- Side Wettable 40-Lead 6mm × 6mm QFN Package
- AEC-Q100 Qualified for Automotive Applications
The LT3380 is a complete power management solution for advanced portable application processor-based systems. The device contains four synchronous step-down DC/DC converters for core, memory, I/O, and system onchip (SoC) rails and three 300mA LDO regulators for low noise analog supplies. An I2C serial port may be used to control regulator enables, power-down sequencing, output voltage levels, dynamic voltage scaling, operating modes, and status reporting.
Regulator start-up is sequenced by connecting outputs to enable pins in the desired order or via the I2C port. The LT3380 outputs may be sequenced off in one of four time slots selected using I2C command registers.
The device is available in a 40-lead 6mm × 6mm QFN with wettable flanks for optical inspection.
APPLICATIONS
- Automotive
- Industrial
- Communications
- General Purpose Multichannel Power Supplies
Documentation
Data Sheet 1
User Guide 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 |
|---|---|---|---|
| LT3380EUJM#PBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380EUJM#TRPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380HUJM#PBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380HUJM#TRPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380HUJM#WPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380HUJM#WTRPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380IUJM#PBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380IUJM#TRPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380IUJM#WPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) | ||
| LT3380IUJM#WTRPBF | 40-Lead QFN (6mm x 6mm, Plastic Side Wettable) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- LT3380
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
LT3380 Demo Board | Multi-Output Power Management Solution with 4 Buck Switching and 3 LDO Linear Regulators with I2C