BL8528
BL8528 is 1.4MHz 3A Synchronous Buck Converte manufactured by SHANGHAI BELLING.
DESCRIPTION
The BL8528 is a synchronous, 1.4MHz, fix frequency PWM Buck converter. It is ideal for powering portable equipment that powered by a single cell Lithium-ion batter, or USB port.
The BL8528 can provide up to 3A of load current with output voltage as low as 0.8V. It can operate at 100% duty cycle for low dropout application.
With its peak current mode control and outside pensation, the BL8528 is stable with ceramic capacitors and small inductors.
BL8528 prises a cycle-by-cycle current limit and thermal shutdown to protect itself from fault application.
BL8528 is available in DFN 3x3 -10 package.
FEATURES
- Adjustable Output Voltage, 0.8
- Vin
- High efficiency, up to 96%
- Output voltage accuracy 2%
- 0.1ohm Rdson of internal MOSFET
- 3A maximum output current
- Up to 1.5MHz fix switching frequency
- 5.5V maximum operation voltage
- Short circuit protection
- Thermal shutdown protection
- 10m V Load regulation at 3A load
- patible with ceramic output capacitor
- Excellent load transient performance
- In-rush current suppression
- Reverse current suppression for light load
- Available in DFN3x3-10 package
APPLICATIONS
- 3G network modem
- Smart phone, PDA
- Digital camera
- LCDTV
- Portable devices
TYPICAL APPLICATION
REV2.0
Page1
BLOCK DIAGRAM
5.5V, 1.4MHz, 3A Synchronous Buck Converter
PIN CONFIGURATION
DFN3x3-10
PIN NO.
3,4 5 6,7...
