+5V or +12V Single-Phase Synchronous Buck Converter PWM Controller - Renesas
Description
DATASHEET
ISL8105B
+5V or +12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers, Extended Soft-Start Time
FN6447 Rev 2.
00 April 15, 2010
The ISL8105B is a simple single-phase PWM controller for a synchronous buck converter.
It operates from +5V or +12V bias supply voltage.
With integrated linear regulator, boot diode, and N-Channel MOSFET gate drivers, the ISL8105B reduces external component count and board space requirements.
These make the IC suitable for a wide range of applications.
Utilizing voltage-mode control, the output voltage can be precisely regulated to as low as 0.
6V.
The 0.
6V internal reference features a maximum tolerance of ±1.
0% over the commercial temperature range, and ±1.
5% over the industrial temperature range.
The controller operates with a fixed switching frequency of 300kHz.
The ISL8105B features the capability of safe start-up with pre-biased load.
It also provides overcurrent protection by monitoring the ON-res...
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