ISL85412

Wide VIN 150mA Synchronous Buck Regulator

Product Status: Mass Production

OVERVIEW

The ISL85412 is a 150mA synchronous buck regulator with an input range of 3.5V to 40V. It provides an easy to use, high efficiency low BOM count solution for a variety of applications.

The ISL85412 integrates both high-side and low-side NMOS FETs and features a PFM mode for improved efficiency at light loads. This feature can be disabled if forced PWM mode is desired. The part switches at a default frequency of 700kHz. By integrating both NMOS devices and providing internal configuration, minimal external components are required, reducing BOM count and complexity of design.

With the wide VIN range and reduced BOM, the part provides an easy to implement design solution for a variety of applications while giving superior performance. It will provide a very robust design for high voltage industrial applications as well as an efficient solution for battery powered applications.

The part is available in a small Pb-free 3mmx3mm TDFN plastic package with an operation junction temperature range of -40°C to +125°C.

KEY FEATURES

  • Wide input voltage range of 3.5V to 40V
  • Synchronous operation for high efficiency
  • No compensation required
  • Integrated high-side and low-side NMOS devices
  • Selectable PFM or forced PWM mode at light loads
  • Internal switching frequency 700kHz
  • Continuous output current up to 150mA
  • Internal soft-start
  • Minimal external components required
  • Power-good and enable functions available

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL85412
Basic Information
生产状态
Mass Production
输出数量
1
拓扑 [Rail 1]
Buck
输入电压最小值 (V) [Rail 1]
3.5
输入电压最大值 (V) [Rail 1]
40
输出电压最小值 (V) [Rail 1]
0.6
输出电压最大值 (V) [Rail 1]
34
输出电流最大值 (A) [Rail 1]
0.15
IQ [Rail 1]
50 µA
开关频率 (最大值) (MHz)
0.784
开关频率 (最小值) (MHz)
0.6
最大占空比 (%)
See Datasheet
资质级别
Standard
峰值效率 (%)
92
POR
Yes
SYNCH功能
No
控制类型
Current Mode
开关频率范围 (MHz)
0.6 to 0.784
CAN 采样
YES
温度范围
-40 to +125

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