NCP5422A

Features:

• V² Control Topology
• Hiccup Mode Overcurrent Protection
• 150 ns 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


Pinout




Specifications

Rating	Value	Unit
Operating Junction Temperature, TJ	150	°C
Storage Temperature Range, TS	−65 to +150	°C
ESD Susceptibility (Human Body Model)	20	KV
Package Thermal Resistance, SO−16:    Junction−to−Case, R JC    Junction−to−Ambient, R JA	28 115	°C/W °C/W
Lead Temperature Soldering:	230 peak	°C

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 V2E 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.