描述 Description

SY8205 develops a high efficiency synchronous stepdown DC-DC converter capable of delivering 5A output current. SY8205 operates over a wide input voltage range from 4.5V to 30V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
SY8205 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500kHz under continous conduction mode to minimize the size of inductor and capacitor.

特性 Features

? Low RDS(ON) for internal switches (top/bottom):70/40 m?
? 4.5-30V input voltage range
? Instant PWM architecture to achieve fast transient responses
? External softstart limits the inrush current
? Pseudo-constant frequency: 500kHz at heavy loads
? 5A continuous, 6A peak load current capability
? 1.5% 0.6V reference
? Output over current limit
? Output short circuit protection with current fold back
? Thermal shutdown and auto recovery
? RoHS Compliant and Halogen Free
? Compact package: DFN3x4-12/SO8E

應(yīng)用 Application

? LCD-TV
? SetTop Box
? Notebook
? Storage
? High power AP router
? Networking