ISL85412

Wide V<sub>IN</sub> 150mA Synchronous Buck Regulator

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

PARAMETRICS

Parameters
ISL85412
Basic Information
Production Status
量産中
トポロジ
Buck
出力数
1
入力電圧 (V) (min)
3.5
入力電圧 (V) (max)
40
出力電圧 (V) (min)
0.6
出力電圧 (V) (max)
34
出力電流 (A) (max)
0.15
IQ
50 µA
スイッチング周波数 (max) (MHz)
0.784
スイッチング周波数 (min) (MHz)
0.6
最大デューティサイクル (%)
See Datasheet
認定レベル
Standard
ピーク効率 (%)
92
POR
Yes
SYNCH機能
No
制御タイプ
Current Mode
スイッチング周波数範囲 (MHz)
0.6 to 0.784
CANサンプル
YES
温度範囲
-40 to +125

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