General Description

The RT9287 integrates a boost converter for OLED power and a Dual LDO for camera image sensor power. To achieve high efficiency, the boost converter optimizes its operating frequency for small LC filters value and reduces the operating current. Moreover, the internal soft-start function reduces the inrush current.

特性 Features

? Boost Converter

? VIN Operating Range : 2.7V to 5.5V

? Maximum Output Voltage Up to 20V

? Output Current up to 100mA at VOUT = 12V.

? Low Shutdown Supply Current

? Minimize the External Component

? Small LC Filter

? Internal Soft Start

? Dual LDO

? Wide Operating Voltage Ranges : 2.7V to 5.5V

? Low-Noise for RF Application

? No Noise Bypass Capacitor Required

? Fast Response in Line/Load Transient

? TTL-Logic-Controlled Shutdown Input

? Low Temperature Coefficient

? Dual LDO Outputs (300mA/300mA)

? Ultra-low Quiescent Current 27μA/LDO

? High Output Accuracy 2

? Short Circuit Protection

? Thermal Shutdown Protection

? Current Limit Protection

? Short Circuit Thermal Folded Back Protection

? RoHS Compliant and 100 Lead (Pb)-Free

Applications

? Camera Phone

? OLED Power