RS53355
2.85V to 16V Input, 30A Sync Step-Down Converter with Light Load Mode, Programmable Switching Frequency and Over Current Limit
Features
- Adaptive Constant-On Time Control with Fast Transient Response.
- Input Voltage Range: 2.85V to 16V with External Bias, or 4.2V to 16V with Internal bias.
- Output Voltage Range: 0.6V to 5.5V. 90% max duty cycle
- 40A Continuous Output Current.
- Excellent Load and Line Regulations with 0.5% Voltage Accuracy.
- Differential Remote Sensing
- Mode Selection Between Pulse Skip and CCM at Light Load
- Programmable Soft-start Time
- 1.0µA Current into VIN Pin During Shutdown
- Programmable Switch Valley Current Limit
- Adjustable Switching Frequency: 400kHz, 600kHz, 800kHz and 1MHz
- Hiccup OCP, UVLO and OTP. Latch-off OVP
- 4mm x 5mm, 25-Pin QFN Package
- RoHS compliant and Green
Description
The RS53355 is a high-power density, fully integrated synchronous buck converter. It has wide input voltage range and can support up to 30A continuous output current at defined conditions. LDO is integrated internally, which is very suitable for single input supply condition. External bias is optional for maximizing the efficiency. A differential sensing scheme and an internal feedback reference voltage achieve ±1% tolerance over full temperature range and, in conjunction, they perform an excellent good line and load regulation.
Switching frequency can be easily adjusted from 400kHz, 600kHz, 800kHz, to 1MHz. The RS53355 uses Constant-On Time control with fast transient response. Pure MLCC output capacitors can be used to save space and cost.
RS53355 has full protection features including OCP, NOCP, OVP, UVP and over temperature protection (OTP).
The RS53355 is available in a 4mm x 5mm 25-Pin QFN package.
Applications
- Computing, Data Center and Servers
- Switches, Routers and Networking
- Base Station
- 12V Distribution Power Systems
