CAT3200数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The CAT3200 and CAT3200-5 are switched capacitor boost converters that deliver a low noise, regulated output voltage. The CAT3200-5 gives a fixed regulated 5.0 V output. The CAT3200 has an adjustable output using external resistors. The constant frequency 2.0 MHz charge pump allows small 1.0 µF ceramic capacitors to be used.Maximum output loads of up to 100 mA can be supported over a wide range of input supply voltages (2.7 V to 4.5 V), making the device ideal for battery-powered applications.A shutdown control input allows the device to be placed in power-down mode, reducing the supply current to less than 1.0 µA.In the event of short circuit or overload conditions, the device is fully protected by both foldback current limiting and thermal overload detection. In addition, a soft start, slew rate control circuit limits inrush current during power up.

特性 Features

• Constant high frequency (2.0 MHz) operation
• 100 mA output current
• Regulated output voltage (5.0 V fixed CAT3200-5, Adjustable CAT3200)
• Low quiescent current (1.7 mA typ.)
• Input voltage operation down to 2.7 V
• Soft start, slew rate control
• Thermal overload shutdown protection
• Low value external capacitors (1.0 µF)
• Foldback current overload protection
• Shutdown current less than 1.0 µA

应用 Application

• 3.0 V to 5.0 V boost conversion •White LED driver
• USB On-The-Go 5.0 V supply
• Local 5.0 V supply from lower rail
• Battery backup systems
• Handheld portable devices

简介

CAT3200属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的CAT3200稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。