4.4V-80V Vin, 2A, High Efficiency Synchronous Step-down DCDC Converter, SCT2820 Replace LMR38020.
SCT2820
SCT2820.pdf
SCT2820.pdfFEATURES
• Wide Input Voltage Range: 4.4V-80V
• Continuous Output Current: 2A
• 1V±1% Feedback Reference Voltage at room
temperature
• Integrated MOSFETs 320mΩ / 160mΩ Rdson
• Low shutdown current: 0.6uA
• Low Quiescent Current: 42uA
• Pulse Skipping Mode (PSM) for Light-Load
Efficiency
• Adjustable Frequency 200kHz to 1MHz
• External Clock Synchronization
• 3ms Internal Soft-start Time
• Power Good Indicator
• Random Spread Spectrum option for reduced EMI
• 97% maximum duty cycle
• Low Dropout Function and Minimum On Time
Function
• Precision Enable Threshold for adjustable Input
Voltage Under-Voltage Lock Out Protection
(UVLO) Threshold and Hysteresis
• Support start-up with pre-biased output
• Over-voltage and Over-Temperature Protection
• ESOP-8L Package
PIN CONFIGUTION
优势替代
FEATURES
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• Configured for rugged industrial applications
– 4.2-V to 80-V input voltage range
– 2-A continuous output current
– Ultra-low 40-µA operating quiescent current
– > 1.5-mm distance between VIN and GND pin
– 200-kHz to 2.2-MHz adjustable switching frequency
– Frequency synchronization to external clock
– Spread spectrum option for reduced EMI
– 97% maximum duty cycle
– Support start-up with pre-biased output
– ±1.0% tolerance voltage reference at room
temperature
– Precision enable
– Easy to use device with integrated compensation
network enabling low BOM count
– Integrated synchronous rectification
– 8-pin HSOIC with PowerPAD™ integrated circuit
package
– PFM and forced PWM (FPWM) options
– Available in 1-A, LMR38010
• Create a custom design using the LMR38020 with
the WEBENCH® Power Designer
PIN CONFIGUTION
