ISL97656

Integrated 4A Switch PWM Step-Up Regulator

OVERVIEW

The ISL97656 is a high frequency, high efficiency step-up voltage regulator operated at constant frequency PWM mode. With an internal 4.0A, 120mΩ MOSFET, it can deliver up to 2A output current at over 90% efficiency. The selectable 640kHz and 1.2MHz allows smaller inductors and faster transient response. An external compensation pin gives the user greater flexibility in setting frequency compensation allowing the use of low ESR Ceramic output capacitors.

When shut down, it draws <1µA of current and can operate down to 2.3V input supply. These features, along with 1.2MHz switching frequency, make it an ideal device for portable equipment and TFT-LCD displays.

The ISL97656 is available in a 10 Ld TDFN package with a maximum height of 1.1mm. The device is specified for operation over the full -40°C to +85°C temperature range.

KEY FEATURES

  • >90% Efficiency
  • 4.0A, 120mΩ Power MOSFET
  • 2.3V to 6.0V Input
  • 1.1*VIN to 25V Output
  • 640kHz/1.2MHz Switching Frequency Selection
  • Adjustable Soft-Start
  • Internal Thermal Protection
  • 0.8mm Max Height 10 Ld TDFN Package
  • Pb-Free (RoHS Compliant)
  • Halogen Free

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL97656
Basic Information
生产状态
Mass Production
iSim模型
YES
拓扑
Boost
输出数量
1
输入电压最小值 (V)
2.3
输入电压最大值 (V)
6
输出电压最小值 (V)
1.1
输出电压最大值 (V)
24
输出电流最大值 (A)
2
IQ
700 µA
开关频率 (最大值) (MHz)
1.2
开关频率 (最小值) (MHz)
0.64
最大占空比 (%)
-
资质级别
Standard
峰值效率 (%)
90
开关频率范围 (MHz)
640kHz/1.2MHz
CAN 采样
YES
温度范围
-40 to +85

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