3.8V-28V Vin, 3A Asynchronous Step-down DCDC Converter, SCT9331C Replace TPS5402.
SCT9331C
SCT9331C.pdf
SCT9331C.pdfFEATURES
? EMI Reduction with Switching Node Ringing-free
? 400kHz Switching Frequency with ?6% Frequency
Spread Spectrum (FSS)
? Pulse Skipping Mode PSM with 25uA Quiescent
Current in Light Load Condition
? 3.8V-28V Wide Input Voltage Range
? Up to 3A Continuous Output Load Current
? 0.8V ±1% Feedback Reference Voltage
? Fully Integrated 115m? Rdson High Side MOSFET
? 1uA Shutdown Current
? 80ns Minimum On-time
? Precision Enable Threshold for Programmable
UVLO Threshold and Hysteresis
? 4ms Built-in Soft Start Time
? Output Over Voltage Protection
? Thermal Shutdown Protection at 160°C
? Available in SOP-8L Package
PIN CONFIGUTION
優勢替代
FEATURES
? 3.5-V to 28-V Wide Input Voltage Range
? Up to 1.7-A Maximum Continuous Output
Loading Current
? Pulse Skipping Mode to Achieve High Light
Load Efficiency
? High Light Load Efficiency
? Frequency Spread Spectrum to Reduce EMI
? Adjustable 50-kHz to 1.1-MHz Switching
Frequency Set by an External Resistor
(Leave pin ROSC floating. Set frequency to
120 kHz and ground connection to 70 kHz)
? Frequency Spread Spectrum to Ease EMI Issue
? Peak Current-Mode Control
? Cycle-by-Cycle Over Current Protection
? External Soft Start
? Available in SOIC8 Package
PIN CONFIGUTION
