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
優(yōu)勢替代
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 40?A 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
