LT1524中文资料Regulating Pulse Width Modulator数据手册ADI规格书

描述 Description

OBSOLETE: For Information Purposes Only. Contact Analog Devices for Potential Replacement.

The LT1524 PWM switching regulator control circuit contains all the essential circuitry to implement single-ended or push-pull switching regulators. Included on the circuit are oscillator, voltage reference, a pulse width modulator, error amplifier, overload protection circuitry and output drivers.

Although pin-for-pin and functionally compatible with industry standard 1524 and 3524 devices, we have incorporated several improvements in the design of the LT1524. A subsurface zener reference has been used to provide excellent stability with time and the reference is trimmed at the wafer level to provide an initial accuracy of 2%. Additionally, the oscillator is trimmed to provide a maximum tolerance of 6%.

Our advanced processing, design and passivation techniques make the LT1524 and LT3524 a superior and more reliable choice over previous devices.

Applications

• Switching Power Supplies

• Motor Speed Control

• Off-Line Power Converters

特性 Features

• OBSOLETE: For Information Purposes Only. Contact Analog Devices for Potential Replacement.

• Guaranteed ±2% Reference Tolerance

• Guaranteed ±6% Oscillator Tolerance

• Guaranteed 10mV/1000 Hrs Long Term Stability

• Interchangeable with all SG1524 or LM1524 Devices

• Operates Above 100kHz

简介

LT1524属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的LT1524DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。