RT4823中文资料Wide Input and Ultra-Low Quiescent Current Boost Converter with High Efficiency数据手册Richtek规格书

描述 Description

The RT4823 allows systems to take advantage of new battery chemistries that can supply significant energy when the battery voltage is lower than the required voltage for system power ICs. By combining built-in power transistors, synchronous rectification, and low supply current; this IC provides a compact solution for systems using advanced Li-Ion battery chemistries.

The RT4823 is a boost regulator designed to provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum. In boost mode, output voltage regulation is guaranteed to a maximum load current of 1500mA. Quiescent current in shutdown mode is less than 1μA, which maximizes battery life. The regulator transitions smoothly between bypass and normal boost mode. The device can be forced into bypass mode to reduce quiescent current.

The RT4823 is available in the WL-CSP-9B 1.3x1.2 (BSC) package.

特性 Features

• Ultra-Low Operating Quiescent Current
• 3 Few External Components : 1μH Inductor, 0402 Case Size Input and 0603 Case Size Output Case Size Capacitors
• Support VIN > VOUT Operation
• Maximum Continuous Load Current : 1.3A at VIN > 3.6V Boosting VOUT to 5V
• EN(H) : Boost Mode
• EN(L), BP(L) : Shutdown Mode
• Over-Current Protection
• Over-Voltage Protection
• Over-Temperature Protection
• Small WL-CSP-9B 1.3x1.2 (BSC) Package

应用 Application

• NFC Device Power Supply
• PC Accessory Application (Keyboard, Mouse...etc.)
• Gaming Device Sensor