LT7930

推荐用于新设计

72V, Parallelable, 4-Switch Buck-Boost Controller for GaN FETs and Si MOSFETs

数据手册 (Rev. 0) 产品选型表

产品模型: 3

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概述

Wide V_IN Voltage Range: 5V to 72V
Single Inductor Architecture Allows V_IN Above, Below, or Equal to the Regulated V_OUT
Synchronous Rectification: Up to 99% Efficiency
Compatible with GaN FETs and Si MOSFETs
±1% Output Voltage Accuracy: 1V ≤ V_OUT ≤ 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
V_IN 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

产品模型: 3

参考资料

数据手册 1

LT7930: 72V, Parallelable, 4-Switch Buck-Boost Controller for GaN FETs and Si MOSFETs Data Sheet (Rev.0) 07/24/2026

用户手册 1

EVAL-LT7930 User Guide: -AZ 72V, Parallelable, Dual -Phase, 4-Switch Buck -Boost Controller with GaN FETs (Rev.0) 07/24/2026

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产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
LT7930AUK#PBF	LFCSP	Material Declaration Reliability Report 资料包	Ultra Librarian SamacSys
LT7930AUK#PBF-ES	LFCSP	Material Declaration Reliability Report 资料包	Ultra Librarian SamacSys
LT7930AUK#TRPBF	LFCSP	Material Declaration Reliability Report 资料包	Ultra Librarian SamacSys

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LTspice

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LT7930

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评估套件

72V, Parallelable, Dual -Phase, 4-Switch Buck -Boost Controller with GaN FETs

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产品详情

The EVAL-LT7930-AZ evaluation circuit features the LT7930 72V parallelable 4-switch buck-boost controller for gallium nitride (GaN) and silicon MOSFETs. The LT7930 is a four-switch buck-boost switching regulator designed to safely and easily operate above, below, or equal to the output voltage. The constant-frequency, peak-current mode architecture allows a phase-lockable switching frequency up to 1MHz. A programmable input or output current loop regulates the average input or output current, making it suitable for battery charging applications. Additionally, with a wide 5V to 72V input and output range and seamless, low-noise transition between operating regions, the LT7930 is ideal for industrial and telecom systems.

The EVAL-LT7930-AZ operates from a 36V to 65V input voltage range and generates an output of 48V and up to 4kW of output power. The board features two LT7930s in parallel to achieve very high power. The parallel operation is set to a switching frequency of 150kHz, which results in an efficient circuit. The adjacent outputs are phase-shifted by 180° offset to interleave the switching while still providing optimal current sharing.

The LT7930 has a precision voltage reference that can generate an output voltage with a 1% tolerance over the full operating conditions. The LT7930 includes 5V optimized gate drivers to drive GaN FETs or Si NMOS FETs. The controller offers a resistor-programmable dead-time control feature to set short dead times for GaN FETs and longer dead times for Si MOSFETs to maximize efficiency. The converter achieves over 98% efficiency at 3kW output power over the full operating VIN range.

This board can be easily modified to regulate output voltages from 1V to 70V. Its multiphase/multi-ICs parallel operation feature allows for simple alterations for higher power.

The EVAL-LT7930-AZ provides a high-performance, cost-effective solution for generating a 48V output. The LT7930 data sheet gives a complete description of this part, its operation, and applications information. The data sheet must be read in conjunction with this user guide for the EVAL-LT7930-AZ.