100V Input, 0.5A Synchronous Buck DC/DC Converter With Ultra-low IQ, SCT2A12 Replace LM5163.
SCT2A12
SCT2A12.pdf
SCT2A12.pdfFEATURES
• Wide Input Range: 5.5V-100V
• Maximum Output Voltage: 30V
• 1A Continuous Output Current
• 1.8A Peak Current Limit when VIN <60V
• Integrated 970mΩ High-Side Power MOSFET
• 49uA Quiescent Current
• 1.2V Feedback Reference Voltage
• 3.5ms Internal Soft-start Time
• Fixed Switching Frequency at 390KHz
• COT Control Mode with Integrated Loop
Compensation
• Precision Enable Threshold for Programmable
Input Voltage Under-Voltage Lock Out Protection
(UVLO) Threshold and Hysteresis
• Cycle-by-Cycle Current Limiting
• Over-Voltage Protection
• Over-Temperature Protection
• Available in an ESOP-8 Package
PIN CONFIGUTION
优势替代
FEATURES
• Designed for reliable and rugged applications
– Wide input voltage range of 6V to 100V
– Junction temperature range: –40°C to +150°C
– Fixed 3ms internal soft-start timer
– Peak and valley current-limit protection
– Input UVLO and thermal shutdown protection
• Optimized for ultra-low EMI requirements
– Meets CISPR 25 class 5 standard
• Suited for scalable Industrial power supplies and
battery packs
– Low minimum on- and off-times of 50ns
– Adjustable switching frequency up to 1MHz
– Diode emulation for high light-load efficiency
– 10.5µA no-load input quiescent current
– 3µA shutdown quiescent current
• Integration reduces design size and cost
– COT mode control architecture
– Integrated 0.725Ω NFET buck switch
– Integrated 0.34Ω NFET synchronous rectifier
eliminates external Schottky diode
– 1.2V internal voltage reference
– No loop compensation components
– Internal VCC bias regulator and boot diode
– Open-drain power good indicator
– 8-pin SOIC package with PowerPAD™
• Create a custom regulator design using
WEBENCH® power designer
PIN CONFIGUTION
