BL8542C中文资料升压型DC/DC转换器：低启动电压，1MHz，500mA同步升压数据手册Belling规格书

描述 Description

The BL8542C is a step-up converter that provides a boosted output voltage from a low voltage source.Because of its proprietary design, it starts up at a very low input voltage down to 850mV, making it an ideal choice for single cell alkaline/NiMH battery operations.A switching frequency of 1MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count.BL8542C is housed in a tiny SOT23-5 package

特性 Features

·Low Vin Start-up Voltage down to 850mV Ideal for Single Alkaline Cell operations
·Capable of delivering 500mA output current at Vin=3.0V, V out=3.3V
·1MHz Switching Frequency allows small inductor and output cap
·Input boost-strapping allows using small or no input cap
·Low Noise PWM control
·Internally Compensated Current Mode Control
·Internal Synchronous Rectifier
·Logic Control Shutdown (IQ
·Available in SOT23-5