4.4V-80V Vin, 2A, High Efficiency Synchronous Step-down DCDC Converter, SCT2820Q Replace LMR38020-Q1.
SCT2820Q
SCT2820Q.pdf
SCT2820Q.pdfFEATURES
• Qualified for Automotive Applications
• AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: -40°C to 125°C
Ambient Operating Temperature Range
• Wide Input Voltage Range: 4.4V-80V
• Continuous Output Current: 2A
• 1V±1% Feedback Reference Voltage at 25°C
• Integrated MOSFETs 320mΩ / 160mΩ Rdson
• Low shutdown current: 0.6uA
• Low Quiescent Current: 42uA
• Pulse Skipping Mode (PSM) in Light-Load
• Adjustable Frequency 200kHz to 1MHz
• External Clock Synchronization
• 3ms Internal Soft-start Time
• Power Good Indicator
• Random Spread Spectrum option for reduced EMI
• 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
• AEC-Q100 qualified for automotive applications
– Temperature grade 1: –40°C to +125°C, TA
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• Configured for rugged automotive applications
– 4.2V to 80V input voltage range
– 2A continuous output current
– Ultra-low 40µA operating quiescent current
– > 1.5mm distance between VIN and GND pin
– 200kHz to 2.2MHz adjustable switching frequency
– Frequency synchronization to external clock
– Spread spectrum for reduced EMI
– 97% maximum duty cycle
– Support start-up with prebiased 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 1A, LMR38010-Q1
• Create a custom design using the LMR38020-Q1
with the WEBENCH® Power Designer
PIN CONFIGUTION
