Fairchild Manuals

FAN4603 is a fully integrated synchronous DC/DC buck converter that provides up to 600mA of output current over an input voltage ranging from 2.3V to 5.5V. It provides a fixed output voltage level ranging from 1.0V to 1.8V. Other voltage options are available on request.

The FAN21SV06 is a highly efficient, small-footprint, programmable-frequency, 6A integrated synchronous buck regulator.

The FAN21SV04 is a highly efficient, small-footprint, programmable-frequency, 4A, integrated synchronous buck regulator.

FAN2110 is a high-efficiency, small-footprint, constant-frequency, 10A integrated synchronous Buck regulator from Fairchild Semiconductor.

The FAN2108 is a highly efficient, small footprint, 8A synchronous buck regulator with features such as wide input voltage range, programmable frequency operation, and integrated Schottky diode.

The FAN2106 is a high-efficiency, small-footprint, constant-frequency, 6A, integrated synchronous buck regulator from FAIRCHILD.

FAN2103 is a 3A synchronous buck regulator from Fairchild Semiconductor. It has an output current of 3A, efficiency of 95% or more, support for external compensation, programmable switching frequency, low input voltage lockout, programmable over-current limit and other features.

FAN2013B is a 2A low-voltage, current-mode synchronous PWM buck regulator produced by Fairchild Semiconductor Corporation.

The FAN2001/FAN2002 is a high-efficiency, low-noise synchronous PWM current mode and Pulse Skip (Power Save) mode DC-DC converter. It features 96% efficiency, adjustable output voltage options, 2.5V to 5.5V input voltage range, and up to 1A output current.

The FAN1577A is a high-efficiency, voltage-mode, dual-channel, synchronous DC/DC PWM controller for two independent outputs. The two channels are operated out of phase. The internal reference voltage is trimmed to 0.7V±1.0%. It is connected to the error amplifier's positive terminal for voltage feedback regulation. A soft-start circuit ensures the output voltage can be gradually and smoothly increased from zero to its final regulated value. The soft-start pin can also be used for chip-enable function. When two soft-start pins are grounded, the chip is disabled, and the total operation current can be reduced to under 0.7mA. The fixed-frequency is programmable from 61kHz to 340kHz. It also includes features such as programmable over-current protection (OCP) and output over-voltage protection (OVP).

This document is about synchronous buck MOSFET loss calculations, and provides an excel calculation model.

This document describes the “shoot-through” phenomenon in synchronous buck converters and provides two solutions to mitigate it.

This article presents some design guidelines for the RCD snubber of flyback converters. When the MOSFET turns off, a high-voltage spike occurs on the drain pin because of a resonance between the leakage inductor (Llk) of the main transformer and the output capacitor (COSS) of the MOSFET. The excessive voltage on the drain pin may lead to an avalanche breakdown and eventually damage the MOSFET. Therefore, it is necessary to add an additional circuit to clamp the voltage.

This application note focuses on the soldering and back end processing of the 8x8 MLP