Datasheet4U Logo Datasheet4U.com

ISL81401A Datasheet 40V 4-Switch Synchronous Buck-Boost Controller

Manufacturer: Renesas

Overview: DATASHEET ISL81401, ISL81401A 40V 4-Switch Synchronous Buck-Boost Controller FN9310 Rev.1.01 Jan 27, 2022 The ISL81401 and ISL81401A are 4-switch synchronous buck-boost controller with peak and average current sensing and monitoring at both ends. The ISL81401 is a bidirectional device that can conduct current in both directions while the ISL81401A is an unidirectional device. The ISL81401 and ISL81401A use the proprietary buck-boost control algorithm with valley current modulation for Boost mode and peak current modulation for Buck mode control. The ISL81401 and ISL81401A have four independent control loops for input and output voltages and currents. Inherent peak current sensing at both ends and cycle-by-cycle current limit of this family of products ensures high operational reliability by providing instant current limit in fast transient conditions at either ends and in both directions. It also has two current monitoring pins at both input and output to facilitate Constant Current (CC) limit and other system management functions. CC operation down to low voltages avoids any runaway condition at over load or short-circuit conditions.

Download the ISL81401A datasheet PDF. This datasheet also includes the ISL81401 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Key Features

  • such as OVP, UVP, OTP, and average and peak current limit on both input and output to ensure high reliability in both unidirectional and bidirectional operation. The IC is packaged in a space conscious 32 Ld 5mmx5mm QFN package to improve thermal dissipation and noise immunity. The unique DE/Burst mode at light-load dramatically lowers standby power consumption with consistent output ripple over different load levels. VIN Rs_in Rs_out VOUT UG1 Q1 PH1 Q4 L UG2 PH2 LG1 Q2 Q3 LG2 Figu.

More Datasheets from Renesas

Part Number Description
ISL81401 40V 4-Switch Synchronous Buck-Boost Controller
ISL81483 RS-485/RS-422 Transceivers
ISL81485 RS-485/RS-422 Transceiver
ISL81486 RS-485/RS-422 Transceivers
ISL81487 RS-485/RS-422 Transceivers
ISL81487E High Speed or Slew Rate Limited RS-485/RS-422 Transceivers
ISL81487L High Speed or Slew Rate Limited RS-485/RS-422 Transceivers
ISL8101 Two-Phase Multiphase Buck PWM Controller
ISL8102 Two-Phase Buck PWM Controller
ISL8103 Three-Phase Buck PWM Controller