BL8022 Datasheet, PDF (1/7 Pages) SHANGHAI BELLING CO., LTD. – 800mA 1.5MHz 7V Synchronous Buck Converter

BL8022
800mA 1.5MHz 7V Synchronous Buck Converter
DESCRIPTION
The BL8022 is a high-efficiency, DC-to-DC step-
down switching regulators, capable of delivering up
to 800mA of output current. The device operates
from an input voltage range of 2.6V to 7.0V and
provides an output voltage from 0.6V to VIN,
making the BL8022 ideal for low voltage power
conversions. Running at a fixed frequency of
1.5MHz allows the use of small external
components, such as ceramic input and output caps,
as well as small inductors, while still providing low
output ripples. This low noise output along with its
excellent efficiency achieved by the internal
synchronous rectifier, making BL8022 an ideal
green replacement for large power consuming
linear regulators. Internal soft-start control circuitry
reduces inrush current. Short-circuit and thermal-
overload protection improves design reliability.
BL8022 is housed in a SOT23-5 Package
FEATURES
 High Efficiency: Up to 96%
 Capable of Delivering 800mA
 1.5MHz Switching Frequency
 No External Schottky Diode Needed
 Low dropout 100% Duty operation
 Internal Compensation and Soft-Start
 Current Mode control
 0.6V Reference for Low Output voltages
 Logic Control Shutdown (IQ<1uA)
 Thermal shutdown and UVLO
 Available in SOT23-5
APPLICATIONS
 Cellular phones
 Digital Cameras
 MP3 and MP4 players
 Set top boxes
 Wireless and DSL Modems
 USB supplied Devices in Notebooks
 Portable Devices
TYPICAL APPLICATION
V_IN
2.6V to 7V
10uF
IN
SW
B^LL^C8³0⁴2⁰2⁶
EN
FB
GND
2.2uH
V_OUT
1.8¹V^.8/^V80^/10^AmA
240K
10uF
120K
PIN OUT & MARKING
1.81V/.88V00/1mAA Step-Down Converter
GG: Product Code
YW: Date code (Year & Week)
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