SY8284 Overview
Description
The SY8284 develops a high efficiency synchronous step-down DC/DC regulator capable of delivering 4A current over a wide input voltage range of 4V to 23V. Silergy’s proprietary Instant-PWM™ fast-response, constant-on-time (COT) PWM control method supports high input/output voltage ratios (low duty cycles), and fast transient response while maintaining a near constant operating frequency over line, load and output voltage ranges.
Key Features
- Low RDS(ON) for Internal Switches (Top/Bottom): 85/35mΩ
- Wide Input Voltage range: 4~23V
- Instant PWM Architecture to Achieve Fast Transient Responses
- Internal 600µs Soft-start Limits the Inrush Current
- Pseudo-constant Frequency: 500kHz
- 4A Output Current Capability
- ±1% Internal Reference Voltage
- Optional Bypass Input
- Power Good Indicator
- Output Discharge Function
