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TP3603A,5V输入电压转换成12V电压输出可选择工作频率的PWM升压转换器

TP3603A】5V输入电压转换成12V电压输出可选择工作频率的PWM升压转换器

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TP3603A 详细介绍

TP3603A概述:可选择工作频率的PWM升压转换器。TP3603A具有1.9A,200mΩ的内部功率开关管,可以将5V输入电压转换成12V电压输出(LED driver 12V boost),并且输出电流达到500mA。750KHz和1.2MHz的可选频率允许选择较小的电感、更快的瞬态回应。5V转12V 
The TP3603A is a high performance current mode, PWM step-up converter with pin selectable operating frequency. With an internal 1.9A, 200mΩ MOSFET, it can generate 12V at up to 500mA output current from a 5V supply. The selectable 750kHz and 1.2MHz allows smaller inductors and faster transient response. An external compensation pin gives the user greater flexibility in setting loop compensation allowing the use of low ESR Ceramic output capacitors. Soft-start is controlled with an external capacitor, which determines the input current ramp rate during start-up. When shut down, it draws<10μA of current and can operate down to 2.5V input supply. These features along with 1.25MHz switching frequency makes it an ideal device for portable equipment and TFT-LCD displays.
The TP3603A is available in an 8-pin MSOP package. The device is specified for operation over the full -40°C to +85°C temperature range.


TP3603A技术特性
•  90% Efficiency
•  1.9A, 200mΩ Power MOSFET
•  2.5V to 5.5V Input Range
•  Adjustable Output Voltage up to 12V
•  750kHz/1.20MHz Switching Frequency Selection
•  Adjustable Soft-Start
•  Internal Thermal Protection
•  Small MSOP-8 package
•  RoHS Compliant and 100% Lead (Pb)-Free


TP3603A应用领域
•  TFT-LCD Displays
•  DSL Modems
•  Set-Top Boxes
•  PCMCIA Cards
•  Portable Equipment
•  Handheld Devices