PWM Buck DC-DC and Triple Linear Power Controller

The ISL6521 provides the power control and protection for four output voltages in low-voltage, high-performance applications. The IC integrates a voltage-mode PWM controller and three linear controllers, as well as monitoring and protection functions into a 16-lead SOIC package.

Features

• Provides 4 Regulated Voltages

- Switching Regulator 20A Capable

- Three Linear Regulators

- Capable of 120mA

- Capable of up to 3A with an External Transistor

• Externally Resistor-Adjustable Outputs

• Simple Single-Loop Control Design

- Voltage-Mode PWM Control

• Fast PWM Converter Transient Response

- High-Bandwidth Error Amplifier

- Full 0 to 100 Duty Ratio

• Excellent Output Voltage Regulation

- All Outputs: ±2 Over Temperature

• Overcurrent Fault Monitors

- Switching Regulator Does Not Require Extra Current

Sensing Element, Uses MOSFET’s rDS(ON)

• Small Converter Size

- 300kHz Constant Frequency Operation

- Small External Component Count

• Commercial and Industrial Temperature Range Support

• Pb-free Available (RoHS Compliant)

Applications

• FPGA and PowerPC™-based boards

• General purpose, low voltage power supplies

ISL6521CBZ-T属于集成电路（IC） > 线性稳压器控制器。瑞萨科技有限公司制造生产的ISL6521CBZ-T稳压器 - 线性 + 开关此产品族中的产品用于构建执行 DC-DC 转换或电压调节功能的电路，采用的是开关模式和线性稳压器功能的组合。虽然具体的拓扑各不相同，但此类产品的主要目的是将开关模式技术的效率优势与线性稳压技术的低噪声特性结合在一起。