CS51414中文资料Buck Regulator, Low Voltage, 1.5 A, 520 kHz, with External Bias数据手册ONSEMI规格书

描述 Description

The CS5141X products are 1.5A buck regulator ICs. These devices are fixed- frequency operating at 260kHz and 520kHz. The regulators use the V2 control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation for today's high- speed logic. These products accommodate input voltages from 4.5V to 40V. The CS51411 and CS51413 contain synchronization circuitry. The CS51412 and CS51414 have the option of powering the controller from an external 3.3V to 6V supply in order to improve efficiency, especially in high input voltage, light load conditions. The on-chip NPN transistor is capable of providing a minimum of 1.5A of output current, and is biased by an external \"boost\" capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by- cycle current limiting and frequency foldback. The CS51411 and CS51413 are functionally pin-compatible with the LT1375. The CS51412 and CS51414 are functionally pin-compatible with the LT1376.

特性 Features

• V2 Architecture Provides Ultra-Fast Transient Response, Improved Regulation and Simplified Design
• Reduced output capacitance
• 2.0% Error Amp Reference Voltage Tolerance
• Accurate Output Voltage
• Switch Frequency Decrease of 4:1 in Short Circuit Conditions
• Reduces Short Circuit PowerDissipation
• BOOST pin for Bootstrapped Operation
• Maximized Efficiency
• Synchronization Function
• Parallel Supply Operation or Noise Minimization
• Shutdown Lead Provides Power-Down Option
• Increased system flexibility
• 85uA Quiescent Current During Power-Down
• Low power dissipation in stand-by mode
• Thermal Shutdown
• Circuit Protection
• Soft Start
• Increased system flexibility
• Pin-Compatible with LT1375 and LT1376
• Easy drop in replacement
• Pb-Free Packages are Available

应用 Application

• Distributed Power
• Battery Charger

简介

CS51414属于集成电路（IC）的稳压器-DC-DC开关稳压器。由ONSEMI制造生产的CS51414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。