Converter optimises TV & monitor transient response
Designed to optimise transient response in low-voltage TV and monitor applications, the AP65550 synchronous buck converter has been launched by Diodes Inc. Based on an adaptive constant on-time control algorithm, the 5A-rated AP65550 quickly reacts to rapid changes in load conditions, guaranteeing a minimal drop in output voltage.
Handling wide variations in input/output voltage ratios, the device control algorithm also helps minimize external component count and enables the use of both low and ultra-low equivalent series resistance capacitors. The converter is available in the SO-8EP package and suitable for 5V, 9V and 12V bus systems, due to its stable 4.5V to 18V operating voltage range.
The buck converter’s automatic light-load, efficiency-improvement feature ensures seamless transition between continuous conduction mode at higher loads and discontinuous conduction mode at lighter loads. This helps designers comply with low power consumption regulations and achieves operating efficiencies as high as 92%.
To protect downstream components from damage and premature aging, the converter integrates a complete suite of protection features, including under-voltage lockout, thermal shutdown, over-current protection and programmable soft-start.
The AP65550 synchronous buck converter from Diodes Incorporated is priced at $0.78 USD each in 10k quantities.
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