AT1529

Global Mixed-mode Technology Inc. AT1529 1MHz, All-Ceramic, 3.2A PWM Buck DC/DC Converter Features „ Ceramic Input and Output Capacitors „ Efficiency Up to 94% „ Operate from 2.5V to 6V supply „ Adjustable Output from 0.8V to VIN „ Internal Soft-Start „ Short-Circuit and Thermal-Overload Protection „ Input Over Voltage Protection „ RoHS Compliant Applications „ ASIC/DSP/µP/FPGA Core and I/O Voltages „ Set-Top Boxes „ Cellular Base Stations „ Networking and Telecommunications General Description The AT1529 high-efficiency, DC/DC buck converter delivers up to 3.2A of output current. The device operates from an input voltage of 2.5V to 6V and provides an output voltage from 0.8V to VIN, making the AT1529 ideal for on-board post-regulation applications. The AT1529 operate at a fixed frequency of 1MHz with an efficiency of up to 94%. The high operating frequency minimizes the size of external components. Internal soft-start control circuitry reduces inrush current. Short-circuit and thermal-overload protections improve design reliability. The AT1529 are available in a space-saving SOP-8 and TDFN3X3-8 package. Ordering Information ORDER NUMBER MARKING AT1529F11U A1529 AT1529RD1U A1529 Note: F1:SOP-8 (FD) RD: TDFN3X3-8 1: Bonding Code U: Tape & Reel TEMP. RANGE -40°C to +85°C -40°C to +85°C PACKAGE (Green) SOP-8 (FD) TDFN3X3-8 Pin Configuration Typical Application Circuit VCC 1 REF 2 GND 3 FB 4 AT1529 Thermal Pad 8 VIN 7 LX 6 PGND 5 EN VCC 1 REF GND FB 2 3 4 ...