DC/DC Step-up Converter， 0.9V Startup, 1MHz, 300mA Iout, Low Iq, Synchronous Boost Converter

Introduction

The BL8536 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 0.9V, and only consumes 15uA at standby, 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.
BL8536 is available in SOT23-3、SOT23-5 and SOT89-3 Packages.

 

Advantage

1、Efficiency up to 95%@Vin=2.7V, Vout=3.3V

2、Typical 15uA standby current

3、1MHz Switching Frequency allows small inductor and output cap

4、Input boost-strapping allows using small or no input cap

5、Low Vin Start-up Voltage down to 0.9V Ideal for Single Alkaline Cell operations

6、Maximum Output Current up to 300mA

7、Low Noise PWM control

8、Internally Compensated Current Mode Control

9、Internal Synchronous Rectifier

10、Available in SOT23-3、SOT23-5 and SOT89-3

 

Applications

1、One to Three Cell Battery Operated Devices

2、Medical Instruments

3、Bluetooth Headsets

4、Flash-Based MP3 Players

5、Noise Canceling Headphones

 

Product Manuals

Download product datasheet