ISL95338

Bidirectional Buck-Boost Voltage Regulator

Product Status: 量産中

OVERVIEW

The ISL95338 is a bidirectional, buck-boost voltage regulator that provides buck-boost voltage regulation and protection features. The Renesas advanced R3™ Technology provides 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 (such as conventional AC/DC ADPs, USB PD ports, and travel ADPs) and safely converts it to a regulated voltage up to 20V. 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, and OTP.

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.

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

PARAMETRICS

Parameters
ISL95338
Basic Information
Production Status
量産中
入力電圧 (V) (min)
3.8
入力電圧 (V) (max)
24
バッテリ充電電圧 (V)
up to 20V
バッテリ充電電圧調整 (%)
12mV steps
DCアダプタ検出
Voltage sensing
トポロジ
R3 modulator
スイッチング周波数 (kHz) (Typ.)
620 to 1000
最大デューティサイクル (%)
100
可聴ノイズ
No
認定レベル
Standard
入力電圧範囲 (V)
3.8 to 24
CANサンプル
YES
温度範囲
-40 to +100

ブロック図

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