ETA2847
ETA2847 is 2A Synchronous Step-Down Converter manufactured by ETA.
DESCRIPTION
ETA2847 is a wide input range, high-efficiency synchronous step-down switching regulator, capable of delivering up to 2A output current. It adopts an adaptive COT control scheme that enables very fast transient response and provides a very smooth transition when the output varies from light load to heavy load. During light load, ETA2847 goes into a PFM mode that saves switching loss achieving high efficiency. The adaptive COT control also maintains a constant switching frequency across line and load. An OVP function protects the IC itself and its downstream system against input voltage surges. ETA2847 is available in SOT23-6 Packages.
FEATURES
- Wide Input Operating Range: 4.5V to 28V
- 34V Input Standoff Voltage
- High Efficiency up to 90%
- PFM Mode at light load
- Capable of Delivering 2A
- No External pensation Needed
- COT Mode Control
- Logic Control Shutdown
- UVLO, OVP and Thermal shutdown
- Available in SOT23-6 Package
- Ro HS pliant
APPLICATIONS
- Smart Meters
- Industrial Applications
- Automotive Applications
TYPICAL APPLICATION
VIN 10u F
3 IN
BST 6
ETA2847 SW 2
5 EN FB 4
GND 1
100n F 10u H 100K
22K
VOUT=3.3V 22p F 22u F
ORDERING INFORMATION
PART No.
ETA2847S2G
PACKAGE
SOT23-6
TOP MARK Pcs/Reel
CHYW
.etasolution.
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