Semtech Corporation SC493
The SC493 is a synchronous EcoSpeedTM buck power supply controller. It features an I2C interface and a bootstrap switch in a space-saving MLPQ 3X3-20 pin package. The SC493 uses Semtech’s advanced patented adaptive on-time control architecture to provide excellent light load efficiency and fast transient response with small external components.| Part No. | SC493 |
|---|---|
| Datasheet | SC493 Download |
| Manufacturer |  Semtech Corporation |
| Description | EcoSpeed Step-down Controller |
| Buy | Stock & Price |
FEATURES
● Input supply voltage range — 3.0V to 28V● Controller supply voltage range — 3.0V to 5.5V
● All ceramic solution enabled
● I2C interface
● Output voltage fine adjust control
● Output voltage margining
● Supports dynamic voltage transitions via the I2C interface
● Programmable power-on delay time and soft-start time
● EcoSpeedTM architecture with pseudo fixed-frequency adaptive on-time control
● Switching frequency programmable up to 1MHz
● Selectable power save, including ultrasonic
● Non-synchronous start-up into pre-biased loads
● Over-voltage/under-voltage fault protection
● Smart power save
● Power good Output
● Smart driveTM
● Status register monitoring device operation
● Ultra-thin package — 3 x 3 x 0.6 (mm), 20 pin MLPQ-UT
● Lead-free and halogen-free
● WEEE and RoHS compliant
DESCRIPTION
The I2C interface is used to program the output voltage offset, the power-on delay time, the soft-start time, the power save operating mode, and it can enable/disable the controller. Additionally, a status register provides information on device state and faults.
