OVERVIEW

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/I2 C 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.

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

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL95338
Input Voltage Min (V)
3.8
Max Duty Cycle (%)
100
Input Voltage Max (V)
24
Audible Noise
No
Battery Charge Voltage (V)
up to 20V
Qualification Level
Standard
Battery Charge Voltage Adjust (%)
12mV steps
Input Voltage Range (V)
3.8 to 24
DC Adapter Detection
Voltage sensing
Can Sample
YES
Topology
R3 modulator
Temperature Range
-40 to +100
Switching Frequency Typ (kHz)
620 to 1000

Confirm below disclaimers

Input Renesas account name and password