NCP5424 Series

Dual Synchronous Buck Controller with Input Current Sharing

Catalog

Dual Synchronous Buck Controller with Input Current Sharing

Part	Operating Temperature [Max]	Operating Temperature [Min]	Function	Output Phases	Synchronous Rectifier	Package / Case	Package / Case [x]	Package / Case [y]	Frequency - Switching [Min]	Frequency - Switching [Max]	Mounting Type	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Topology	Number of Outputs	Supplier Device Package	Control Features	Duty Cycle (Max) [Max]	Clock Sync	Output Configuration	Output Type
ON Semiconductor NCP5424DG	70 °C	0 °C	Step-Down	2		16-SOIC	0.154 in	3.9 mm	150 kHz	600 kHz	Surface Mount	7.8 V	16 V	Buck	2	16-SOIC	Frequency Control	100 %		Positive	Transistor Driver

Catalog

Dual Synchronous Buck Controller with Input Current Sharing

Key Features

• Cycle-to-Cycle Current Limit (Controller 2)

• Programmable Soft Start

• 100% Duty Cycle for Enhanced Transient Response

• 150kHZ to 600kHZ Programmable Frequency Operation

• Switching Frequency Set by Single Resistor

• Out-Of-Phase Synchronization Between the Channels Reduces the Input Filter Requirement

• Undervoltage Lockout

• Pb-Free Packages are Available*

• Hiccup Mode Current Limit (Controller 1)

Description

The NCP5424 is a flexible dual N-channel synchronous buck controller utilizing V2 control for fast transient response and excellent line and load regulation. This highly versatile controller can be configured as a single two phase output converter that draws programmable amounts of current from two different input voltages or all current from one supply. The NCP5424 can also be configured as two independent out-of-phase controllers.