3.8~40V Input,5A Synchronous Step-down DC/DC with PSM Mode, SCT2450 Replace AP64500.
SCT2450
SCT2450.pdf
SCT2450.pdfFEATURES
• Wide Input Range: 3.8V-36V
• Up to 5A Continuous Output Current
• 0.8V ±1% Feedback Reference Voltage
• Integrated 45mΩ High-Side and 20mΩ Low-Side
Power MOSFETs
• Pulse Skipping Mode (PSM) with 25uA Quiescent
Current in Sleep Mode
• 100ns Minimum On-time
• 4ms Internal Soft-start Time
• Adjustable Frequency 100KHz to 1.1MHz
• Low Dropout Mode Operation
• Derivable Inverting Voltage Regulator
• Over-voltage and Over-Temperature Protection
• Available in an ESOP-8 Package
PIN CONFIGUTION
优势替代
FEATURES
• VIN 3.8V to 40V
• 5A Continuous Output Current
• 0.8V ± 1% Reference Voltage
• 25µA Low Quiescent Current (Pulse Frequency Modulation)
• Programmable Switching Frequency: 100kHz to 2.2MHz
• External Clock Synchronization: 100kHz to 2.2MHz
• Up to 85% Efficiency at 5mA Light Load
• Low-Dropout (LDO) Mode
• Precision Enable Threshold to Adjust UVLO
• Protection Circuitry
- Undervoltage Lockout (UVLO)
- Output Overvoltage Protection (OVP)
- Cycle-by-Cycle Peak Current Limit
- Thermal Shutdown
PIN CONFIGUTION
