TOP412集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

TOP412属于集成电路（IC）的稳压器-DC-DC开关稳压器。由荷兰帕沃英蒂格盛有限公司制造生产的TOP412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。

描述 Description

The TOPSwitchfamily implements, with only three terminals, all functions necessary for a DC to DC, converter: high voltage N-channel power MOSFET with controlled turn-on gate driver, voltage mode PWM controller with integrated 120 kHz oscillator, high voltage start-up bias circuit, bandgap derived reference, bias shunt regulator/error amplifier for loop compensation and fault protection circuitry.

Product Highlights

Low Cost Replacement for Discrete Switchers

• Up to 15 fewer components - cuts cost, increases reliability

• Allows for a smaller and lighter solution under 12 mm height, all surface mount components

Over 80 Efficiency in Flyback Topology

• Built-in start-up and current limit reduce DC losses

• Low capacitance MOSFET cuts switching losses

• CMOS controller/gate driver consumes only 7 mW

• 70 maximum duty cycle minimizes conduction losses

Simplifies Design - Reduces Time to Market

• Integrated PWM Controller and high power MOSFET

• Only one external capacitor needed for compensation, bypass and start-up/auto-restart functions

System Level Fault Protection Features

• Auto-restart and cycle by cycle current limiting functions handle both primary and secondary faults

• On-chip latching thermal shutdown protects the entire system against overload

Highly Versatile

• Implements Buck, Boost, Flyback or Forward topology

• Easily interfaces with both opto and primary feedback

• Supports continuous or discontinuous mode of operation

• Specified for operation down to 16 V DC input