RS53419
2.85V to 26V Input, 15A Sync Step-Down Converter with Programmable Switching Frequency and Over Current Limit
Features
- Constant-On-Time Control with fast transient response
- Input Voltage Range: 2.85V to 26V with external bias, or 4.2V to 26V with internal bias
- Output Voltage Range: 0.5V to 5.5V for RS53419L, 0.6V to 5.5V for RS53419H. 90% max duty cycle
- 15A continuous output current
- Excellent load and line regulations with 0.6% voltage accuracy
- Differential Remote Sensing
- Mode Selection Between Pulse Skip and CCM at Light Load
- Programmable soft-start time
- Programmable Switch Valley Current Limit
- Adjustable Switching Frequency: 300kHz, 500kHz, 800kHz and 1000kHz
- Non-latch OCP, UVP, UVLO and OTP. Latch-off OVP
- 3mm x 4mm 21-Pin QFN Package
- RoHS compliant and Green
Description
The RS53419 is a high-power density, fully integrated synchronous buck converter. It has a wide input voltage range, and can support up to 15A continuous output current at defined conditions. LDO is integrated internally, which is very suitable for single input supply conditions. External bias is optional for maximizing 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 line and load regulation.
Switching frequency can be easily adjusted from 300kHz, 500kHz, 800kHz, to 1000kHz. The RS53419 uses Constant-On-Time control scheme with fast transient response. Pure MLCC output capacitors can be used to save space and cost.
RS53419 has full protection features including OCP, NOCP, OVP, UVP and over temperature protection (OTP).
The RS53419 is available in a 3mm x 4mm 21-Pin QFN package.
Applications
- Laptop/desktop computer
- Industrial applications
- Networking system
- Gaming Consoles and Graphic Cards
- TV Power
