ETA355E Datasheet | ETA

DESCRIPTION FEATURES The ETA355E is a high-efficiency, DC-to-DC step-down switching regulator, capable of delivering 5A load, up to 6.5A of pulse load. It integrates an I2C interface that dynamically scales the output voltages on demand. The DCDC control block belongs to a new breed of high frequency synchronous Step-Down converter that bines the advantages of voltage mode control and Constant-On-Time control. Its adaptive Constant-On Time control dynamically changes switch on time to achieve a constant switching frequency. It does not have the minimum on-time constrain normally a fixedfrequency current mode Step-down requires, allowing it to go down to very low duty ratio without affecting loop stability. The voltage mode nature also provides a more superior load transient response and a seamless transition from PFM to PWM modes. Cycle-by-cycle current limit provides output short-circuit protection and an input OVP function guards ETA355E against possible input voltage surge. ETA355E is housed in a 2mm x 1.6mm CSP-20 Package. - I2C Dynamic Output Control - Synchronous High Efficiency up to 95% - Fast load transient response - Capable of Delivering 5A - Pulse Current capability 6.5A - Input OVP at 6.2V - No External Schottky Diode Needed - Thermal shutdown and UVLO - CSP-20 (4x5) package APPLICATIONS - ARM based CPUs - Smart Phone - Tablet, MID - Smart Set-Top Box, OTT TYPICAL APPLICATION VIN 2.6V to 5.5V AVIN/PVIN 10u F 10n F VSEL I2C SCL AGND/ PGND 0.33u H VOUT 22u F x2 Typical Application Circuit ORDERING INFORMATION PART No. PACKAGE ETA355ECSU CSP-20 (4x5) TOP MARK Pcs/Reel 355E YWWL(Date Code) .etasolution. Empower Thinkers PIN...