RS53417
2.85V to 26V Input, 6A 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
- Reference voltage: 0.5V for RS53417L, and 0.6V for RS53417H
- 6A continuous output current
- Excellent load and line regulations with 0.6% voltage accuracy
- Stable with Zero ESR Output Capacitor
- Output Voltage Discharge
- Mode Selection Between Pulse Skip and CCM at Light Load
- PGOOD Active Clamped at Low Level during Power Failure
- Programmable Switch Valley Current Limit
- Adjustable Switching Frequency: 300kHz, 500kHz, 800kHz, 1100kHz
- OCP, NOCP, UVP, UVLO, OTP and OVP
- 2mm x 3mm 14-Pin QFN Package
- RoHS compliant and Green
Description
The RS53417 is a high-power density, fully integrated synchronous buck converter. It has a wide input voltage range and can support up to 6A 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 selected from 300kHz, 500kHz, 800kHz and 1100kHz. The RS53417 uses Constant-On-Time control scheme with fast transient response. Pure MLCC output capacitors can be used to save space and cost.
RS53417 has full protection features. OCP, UVP, UVLO and OTP are non-latch mode. OVP is latch-off mode.
The RS53417 is available in a 2mm x 3mm 14-Pin QFN package.
Applications
- Laptop and desktop computer
- Networking systems
- Industrial applications
