ISL95338

Key Features

• Bidirectional buck, boost, and buck-boost operation
• Input voltage range 3.8V to 24V (no dead zone)
• Output voltage up to 20V
• Up to 1MHz switching frequency
• Programmable soft-start time
• LDO output for VDD and VDDP
• System status alert function
• Bidirectional internal discharge function
• Active switching for negative voltage transitions
• Bypass mode in both directions
• Forward mode enable, Reverse mode enable
• OCP, OVP, UVP, and OTP protection
• SMBus and auto-increment I²C compatible
• Pb-free (RoHS compliant)
• 32 Ld 4x4 TQFN Package

Description

The ISL95338 is a bidirectional, buck-boost voltage regulator that provides buck-boost voltage regulation and protection features. Intersil’s advanced R3™ Technology is used to provide high light-load efficiency, fast transient response, and seamless DCM/CCM transitions.

The ISL95338 takes input power from a wide range of DC power sources (conventional AC/DC ADPs, USB PD ports, travel ADPs, etc.) and safely converts it to a regulated voltage up to 24V. The ISL95338 can also convert a wide range DC power source connected at its output (system side) to a regulated voltage to its input (ADP side). This bidirectional buck-boost regulation feature makes its application very flexible.

The ISL95338 includes various system operation functions such as Forward mode enable, Reverse mode enable, programmable soft-start time, and adjustable VOUT in both the forward direction and reverse direction. The protection functionalities include OCP, OVP, UVP, OTP, etc.

The ISL95338 has serial communication through SMBus/I²C that allows programming of many critical parameters to deliver a customized solution. These programming parameters include, but are not limited to: output current limit, input current limit, and output voltage setting.

Applications

• Tablet, ultrabook, power bank, mobile devices, and USB-C