LTC7880
RECOMMENDED FOR NEW DESIGNS60V Dual Output Step-Up Controller with Digital Power System Management
- Part Models
- 4
- 1ku List Price
- Starting From $11.37
Overview
- PMBus/I2C Compliant Serial Interface
- Telemetry Read-Back Includes Input and Output Voltage and Current, Temperature and Faults
- Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV/OC, Frequency, and Control Loop Compensation
- Output Error Less Than ±0.5% Over Temperature
- Integrated 16-Bit ADC and 12-Bit DAC
- Internal EEPROM with ECC and Fault Logging
- Integrated N-Channel MOSFET Gate Drivers
- Wide Input Voltage Range: 5V to 40V
- Operates Down to 2.5V After Start-Up
- VOUT0, VOUT1 Range: Up to 60V
- Analog Current Mode Control
- Accurate PolyPhase® Current Sharing for Up to 6 Phases (50kHz to 500kHz)
- Available in a 52-Lead (7mm × 8mm) QFN Package
The LTC7880 is a dual PolyPhase® DC/DC synchronous step-up switching regulator controller with I2C-based PMBus compliant serial interface. This controller employs a constant-frequency, current-mode architecture, with high voltage input and output capability along with programmable loop compensation. The LTC7880 is supported by the LTpowerPlay™ software development tool with graphical user interface (GUI).
Switching frequency, output voltage, and device address can be programmed both by digital interface as well as external configuration resistors. Parameters can be set via the digital interface or stored in EEPROM. The gate drive for the LTC7880 can be programmed from 6.3V to 9V to maximize efficiency. Both outputs have an independent power good indicator and FAULT function.
The LTC7880 can be configured for discontinuous (pulse-skipping) mode or continuous inductor current mode.
Applications
- Automotive Always-On and Start-Stop Systems
- Industrial and Point of Load Applications
All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. patents, including 5481178, 5705919, 5929620, 6100678, 6144194, 6177787, 5408150, 6580258, 6304066, 7420359, 8786268 Patent Pending. Licensed under U.S. Patent 7000125 and other related patents worldwide.
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Device Drivers 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 |
|---|---|---|---|
| LTC7880EUKG#PBF | 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP) | ||
| LTC7880EUKG#TRPBF | 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP) | ||
| LTC7880IUKG#PBF | 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP) | ||
| LTC7880IUKG#TRPBF | 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC7880
LTpowerPlay®
LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.
Open ToolLTspice® 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
LTC7880 Demo Board | High Voltage Dual Step-up DC/DC Converter with Digital Power System Management