On-Bright Electronics OB2105
OB2105 is a wide input voltage, high-efficiency, high performance synchronous-rectified buck converter. The built-in multi-stage detection scheme effectively protects the device and system when the output hard short to ground. OB2105 is available in SOP-8 and SOT23-5 packages and required very few external components for operation.GENERAL DESCRIPTION
OB2105 utilizes soft driving technology to achieve good EMI performance. OB2105 also provide soft-start, VIN/VOUT over voltage protection, over temperature protection, and output short circuit protection with hiccup mode.FEATURES
● Wide 6V to 35V Operating Input Range● Synchronous Operating without External Schottky Diode.
● Simplified External Device Requirement.
● 90.5% efficiency at VOUT 5.0V 1A, VIN 12V.
● Fixed 160KHz Frequency.
● Multi-Stage Short Circuit Protection and Hiccup Mode.
● VIN/VOUT Over Voltage Protection and Over Temperature Protection.
● Good EMI Performance.
APPLICATIONS
● Home Appliances● White Goods
● Stand-By Power Supply TYPICAL APPLICATION VIN=6V~35V C1 C2 VIN SW GND SW L1 VOUT=5V R1 C4 OB2105 GND NC C3 Vo BST ©On-Bright Electronics Confidential -1- Preliminary Datasheet OB_DOC_DS_210503 OB2105 High Performance Synchronous Buck Converter GENERAL INFORMATION Pin Configuration SOP8 VIN 1 GND 2 GND 3 VOUT 4 OB2105 8 SW 7 SW 6 NC 5 BST SOT23...