NCP5422A Series

Dual Out-of-Phase Synchronous Buck Controller

Catalog

Dual Out-of-Phase Synchronous Buck Controller

Part	Supplier Device Package	Output Type	Clock Sync	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Duty Cycle (Max) [Max]	Package / Case	Package / Case [x]	Package / Case [y]	Output Configuration	Output Phases	Synchronous Rectifier	Mounting Type	Topology	Function	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Frequency - Switching [Min]	Frequency - Switching [Max]	Control Features
ON Semiconductor NCP5422ADR2G	16-SOIC	Transistor Driver		70 °C	0 °C	1	100 %	16-SOIC	0.154 in	3.9 mm	Positive	1		Surface Mount	Buck	Step-Down	7.8 V	16 V	150 kHz	600 kHz	Frequency Control

Catalog

Dual Out-of-Phase Synchronous Buck Controller

Key Features

• V2 Control Topology

• Hiccup Mode Overcurrent Protection

• 150ns Transient Response

• Programmable Soft Start

• 100% Duty Cycle for Enhanced Transient Response

• 150 kHz to 600 kHz Programmable Frequency Operation

• Switching Frequency Set by Single Resistor

• Out-Of-Phase Synchronization Between Channels

• Undervoltage Lockout

• Both Gate Drive Outputs Held Low During Fault Condition

• Pb free package available

Description

The NCP5422A is a dual N-channel synchronous buck regulator controller. It contains all the circuitry required for two independent buck regulators and utilizes the V2 control method to achieve the fastest possible transient response and best overall regulation, while using the least number of external components. The NCP5422A features out-of-phase synchronization between the channels, reducing the input filter requirement. The NCP5422A also provides undervoltage lockout, Soft Start, built in adaptive non-overlap time and hiccup mode overcurrent protection.