ETA ETA2237
ETA2237 is a wide input range, high efficiency and high frequency DC to DC step-down switching regulator, capable of delivering up to 6A 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. ETA2237 is available in FCTSOT23-8 and DFN3× 3-10 Package.DESCRIPTION
FEATURES
An OVP function protects the IC itself and its downstream system against input voltage surges.● Wide Input Range: 4.5V-17V
● Adaptive COT Control
● Ultra-fast Load Transient Response
● Forced PWM Mode
● Low RDS(ON) Internal Power FETs
● Capable of Delivering Up to 6A
● No External Compensation Needed
● Thermal Shutdown and UVLO
● Output Auto-discharge Function
● Available in FCTSOT23-8 and DFN3× 3-10 Package
● RoHS Compliant
APPLICATIONS
● LCD TV● Set Top Box
● DSL Modem TYPICAL APPLICATION 10ohm 100nF INPUT 10uF 100nF EN BST IN SW ETA2237 EN FB GND 2.2uH R1 22pF R2 OUTPUT 2x22uF Figure 1: Typical Application Circuit *R2 has to be set between 1KΩ to 20KΩ ORDERING INFORMATION PART No. PACKAGE ETA2237D3K DFN3× 3-10 TOP MARK ETA2237 YWWXL Pcs/Reel 5000 ETA2237FT2I FCTSOT23-8 M3YW 3000 ETA2237 Rev 1.0 Empower, Transcend, Achieve! 1 ETA2237 PIN CONFIGURATION GND 1 IN 2 SW 3 GND 4 GND 1 GND 2 SW 3 SW 4 GND 5 8 FB ETA2237 7 NC 6 EN 5 BST FCTSOT23-8 Top View ETA2237 GND 10 FB 9 IN 8 IN 7 EN 6 BST DFN3x3-10 ABSOLUTEMAXIMUM RATINGS (Note: Exceeding these limits may damage the device.