uP1735中文资料3A High Voltage Synchronous Buck Converter数据手册uPI(UBIQ)规格书

描述 Description

The uP1735 is a high-efficiency synchronous-rectifiedbuck converter with internal power switch. With internallow RDS(ON) switches, the high-efficiency buck converter iscapable of delivering 3A output current over a wide inputvoltage range from 4.5V to 23V. The output voltage isadjustable from 0.8V to 20V by a voltage divider. Otherfeatures for the buck converter include adjust soft-start,chip enable, over-voltage, under-voltage, overtemperatureand over-current protections. It is availablein a space saving PSOP-8L package.

特性 Features

·4.5V to 23V Input Voltage Range.
·3A Output Current.
·Accurate Reference: 0.8V (+/- 1.5%).
·Up to 93% Conversion Efficiency.
·Integrated Low RDS(ON) Upper and Lower MOSFET Switches: 100mΩ.
·Current Mode PWM Operation.
·Constant Fixed-Frequency Operation:
·340kHz.
·650kHz.
·1.2MHz.

·Programmable Soft-Start.
·Integrated Boot Diode.
·Frequency Decay Mode During UVP.
·Over Voltage and Under Voltage Protection.
·Over Current and Over Temperature Protection.
·PSOP-8L Package.
·RoHS Compliant and Halogen Free.

应用 Application

·Battery-Powered Portable Devices·MP3 Players.
·Digital Still Cameras.
·Wireless and DSL Modems.
·Personal Information Appliances.

·802.11 WLAN Power Supplies.
·FPGA/ASIC Power Supplies.
·Laptop, Palmtops, Notebook Computers.
·Portable Information Appliances.