A8480

www.DataSheet4U.com A8480 Boost Regulator for Display Bias or LED Driver Features and Benefits ▪ Output disconnect during shutdown ▫ 1 μA shutdown current ▪ 2.7 to 9 V input ▫ Operate with 1 or 2 Li+ battery input supply ▪ Output voltage up to 23 V ▪ 1.2 MHz switching frequency ▪ 1.5 A switch current limit ▪ Internal overvoltage and overtemperature protection, and soft start Description The A8480 is a 1.2 MHz optimized boost converter with internal soft-start and compensation to support WLED, flash/torch, and display bias applications. The input voltage range of 2.7 to 9 V supports either 1 or 2 Li-ion battery applications. The high voltage integrated double-diffused MOSFET (DMOS) allows output voltages as high as 23 V with a switch current limit of 1.5 A, this increases the maximum quantity of LEDs that can be used in series. To maximize battery life in the application, the output can be completely disconnected from the battery voltage to virtually eliminate leakage current in the system. For system protection, the A8480 has internal overtemperature and overvoltage protection. The A8480 is available in both 1.6 mm × 1.6 mm, 0.5 mm nominal height CSP, and 3 mm × 3 mm, 0.75 mm nominal height MLP/DFN packages. Applications include: ▪ WLED flash/torch ▪ WLED backlight ▪ OLED bias supplies ▪ LCD bias supplies ▪ General purpose boost converter Package: 9-pin CSP (suffix CG) 10-pin MLP/DFN (suffix EJ) with exposed thermal pad Approximate Scale 1:1 Typical Applications L1 22 μ...