ETA1459
ETA1459 is I2C Controlled Output Synchronous Step-Down Converter manufactured by ETA.
18V, 2.5A, I2C Controlled Output Synchronous Step-Down Converter
DESCRIPTION
The ETA1459 is a wide input range, high-efficiency, DC-to-DC step-down switching regulator, capable of delivering up to 2.5A of output current. Its output can be dynamically controlled by I2C interface. Current mode PWM control allows the use of small external ponents, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples. On top of the integrated internal synchronous rectifier that eliminates external Schottky diode, ETA1459 also employs a proprietary control scheme that switches the device into a power save mode during light load, thereby extending the range of high efficiency operation. Therefore, ETA1459 is a much superior solution in parison to other petitions in terms of efficiency and cost. Cycle-by-cycle current limit provides output short-circuit protection and an input OVP function guards ETA1459 against possible input voltage surge. Overall, ETA1459 is a highly efficient and robust solution for DC-DC step-down applications that requires wide input ranges. ETA1459 is housed in a ESOP8 Package.
Features
- I2C Dynamic Output Control
- Wide Input Operating Range from 4.2V to 18V
- High Efficiency:
Up to 90%at Light Load Up to 95% at Heavy Load
- Capable of Delivering 2.5A
- Input OVP at 20V
- No External Schottky Diode Needed
- Thermal shutdown and UVLO
APPLICATIONS
- Smart TVs, Smart Set Top Box
- Tablet puter, MID
ORDERING INFORMATION
PART
PACKAGE PIN TOP MARK
ETA1459E8A ESOP8
ETA1459-Product Number YWWPL-Date Code
TYPICAL APPLICATION
VIN DVCC 22μF
10n F
IN 5 EN
6 SCL 7 SDA
6.8μH
VOUT 1.1V/2A
5kΩ
22μF
X2...