1A Standard Buck PWM Regulator

The ISL85001 is a high-performance, simple output controller that provides a single, high frequency power solution for a variety of point-of-load applications. The ISL85001 integrates a 1A standard buck PWM controller and switching MOSFET.

Features

• Standard buck controller with integrated switching power MOSFET

• Integrated boot diode

• Input voltage range

- Fixed 5V ±10

- Variable 5.5V to 25V

• PWM output voltage adjustable from 0.6V to 19V with continuous output current up to 1A

• ±1 VFB tolerance

• Voltage mode control with voltage feed-forward

• Fixed 500kHz switching frequency

• Externally adjustable soft-start time

• Output undervoltage protection

• Enable inputs

• PGOOD output

• Overcurrent protection

• Thermal overload protection

• Internal 5V LDO regulator

• Pb-free (RoHS compliant)

Applications

• General purpose

• WLAN Cards-PCMCIA, Cardbus32, MiniPCI cards-compact flash cards

• Hand-held instruments

• LCD panel

• Set-top box