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降低电压开关3A调节器--AT2576

产品分类: 稳压管 LDO
    The AT2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator,functions for a step-down (buck) switching regulator,load regulation. These devices are available in fixed output voltages of 3.3V, 5V and an adjustable Requiring a minimum number of external components, these regulators are simple to use and include i
    订购热线:400-788-7770
    150mA Low Noise / High PSRR Dual LDO Regulators--AT2261
    150mA Low Noise / High PSRR Dual LDO Regulators--AT2261
    The AT2261 series are dual voltage regulator ICs with high output voltage accuracy, low supply current, low dropout, and high ripple rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, short circuit protection and a chip enable circuit.These ICs perform with low dropo
    3.0A Ultra Low Dropout Regulator--AT818
    3.0A Ultra Low Dropout Regulator--AT818
    The AT818 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at up to 3A amps. It operates with a VIN as low as 1.8V,with output voltage programmable as low as 0.8V.
    600mA Ultra Low Dropout Regulator--AT805
    600mA Ultra Low Dropout Regulator--AT805
    The AT805 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at 600mA amps. It operates with a VIN as low as 1.8V, with output voltage programmable as low as 0.8V. The AT805 features ultra low dropout, ideal for applications where VOUT is very close to VIN. Additionally, the AT805 has an enable pin to furt

                降低电压开关3A调节器--AT2576

      一 概述

      The AT2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator,functions for a step-down (buck) switching regulator,load regulation. These devices are available in fixed output voltages of 3.3V, 5V and an adjustable Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.A standard series of inductors are available from several different manufacturers optimized for use with the AT2576 series. This feature greatly simplifies the design of switch-mode power supplies.The output voltage is guaranteed to ±3% tolerance under specified input voltage and output load conditions. The oscillator frequency is guaranteed to±10%. External shutdown is included, featuring typically 50μA standby current. Self-features include a two stage frequency current limit for the output switch and an temperature shutdown for complete protection under fault conditions.

       

      二 特性

      Standard TO-220-5L, TO-263-5L, PSOP-8 Package
      3.3V, 5V, and Adjustable Output Versions
      Adjustable Version Output Voltage Range 1.23V to 37V
      VOUT Accuracy is to ±3% Under Specified Input output voltages of 3.3V, 5V and an adjustable output
      Voltage the Output Load Conditions
      Input Voltage Range Up to 40V
      Requires Only 4 External Components with High Efficiency
      TTL Shutdown Capability, Low Power Standby Mode
      Built-in Thermal Shutdown, Current Limit Protection
      Uses Standard Inductors
      52 KHz Fixed Frequency Internal Oscillator

       

      三 应用

      Pre-Regulator for Linear Regulators protection
      High-Efficiency Step-Down Buck Regulator reducing
      On-Card/ Board Switching Regulators over
      Positive to Negative Converter(Buck)

       

      四 封装

       

      五 应用电路图

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      验证码: 验证码
      150mA Low Noise / High PSRR Dual LDO Regulators--AT2261
      150mA Low Noise / High PSRR Dual LDO Regulators--AT2261
      The AT2261 series are dual voltage regulator ICs with high output voltage accuracy, low supply current, low dropout, and high ripple rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, short circuit protection and a chip enable circuit.These ICs perform with low dropo
      3.0A Ultra Low Dropout Regulator--AT818
      3.0A Ultra Low Dropout Regulator--AT818
      The AT818 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at up to 3A amps. It operates with a VIN as low as 1.8V,with output voltage programmable as low as 0.8V.
      600mA Ultra Low Dropout Regulator--AT805
      600mA Ultra Low Dropout Regulator--AT805
      The AT805 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very low dropout voltage at 600mA amps. It operates with a VIN as low as 1.8V, with output voltage programmable as low as 0.8V. The AT805 features ultra low dropout, ideal for applications where VOUT is very close to VIN. Additionally, the AT805 has an enable pin to furt
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