LT7930
RECOMMENDED FOR NEW DESIGNS72V, Parallelable, 4-Switch Buck-Boost Controller for GaN FETs and Si MOSFETs
- Part Models
- 2
- 1ku List Price
- Starting From $4.95
Overview
- Wide VIN Voltage Range: 5V to 72V
- Single Inductor Architecture Allows VIN Above, Below, or Equal to the Regulated VOUT
- Synchronous Rectification: Up to 99% Efficiency
- Compatible with GaN FETs and Si MOSFETs
- ±1% Output Voltage Accuracy: 1V ≤ VOUT ≤ 70V
- DCR or RSENSE Current Sensing
- Peak Current-Mode Control in Buck/Boost/Buck- Boost Mode
- Programmable Input or Output Current Regulation
- Continuously Programmable Dead Time (0ns to 100ns)
- Phase-Lockable Frequency (150kHz to 1MHz)
- Multiphase/Multi-IC Parallel Operation
- VIN Overvoltage Protection
- Selectable Continuous or Pulse-Skipping Mode Operation and Inductor Peak Current Limits
- 48-Lead, 7mm × 7mm LFCSP with Exposed Pad Package, IPC-9592 High-Voltage Spacing Compliant
The LT7930 is a high-performance, buck-boost switching regulator controller that operates from an input voltage above, below, or equal to the output voltage. The constant-frequency, peak current mode architecture allows a phase-lockable switching frequency of up to 1MHz, while a programmable input or output current loop regulates the average input or output current for accurately supporting battery charging applications. With a wide 5V to 72V input and output range and seamless, low-noise transitions between operating regions, the LT7930 is ideal for 48V input systems.
The LT7930 features forced continuous mode (FCM)/ pulse-skipping mode operation. It supports multiphase/ multi-IC parallel operation for high-power applications. The LT7930 includes 5V optimized N-channel gate drivers to drive GaN FETs or NMOS FETs. Its dead time can be continuously programmed with an external resistor, allowing short dead time for GaN FETs or longer dead time for Si MOSFETs in order to maximize efficiency. The LT7930 also provides VIN overvoltage protection, smart EXTVCC auxiliary supply, and programmable inductor peak current limit. A PGOOD pin indicates when the output is within 10% of its designed set point.
The LT7930 is packaged in a low-profile, 48-lead LFCSP that is compliant with the IPC-9592 high-voltage pin spacing standard.
APPLICATIONS
- Industrial and Telecom Systems
- Distributed DC Power or Battery Backup Systems
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 |
|---|---|---|---|
| LT7930AUK#PBF | LFCSP | ||
| LT7930AUK#TRPBF | LFCSP |
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:
- LT7930
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
72V, Parallelable, Dual -Phase, 4-Switch Buck -Boost Controller with GaN FETs