CS5253-1集成电路（IC）的线性+开关稳压器规格书PDF中文资料

CS5253-1属于集成电路（IC）的线性+开关稳压器。由安森美半导体公司制造生产的CS5253-1稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

3.0 A LDO 5−Pin Adjustable Linear Regulator

This new very low dropout linear regulator reduces total power dissipation in the application. To achieve very low dropout, the internal pass transistor is powered separately from the control circuitry. Furthermore, with the control and power inputs tied together, this device can be used in single supply configuration and still offer a better dropout voltage than conventional PNP − NPN based LDO regulators. In this mode the dropout is determined by the minimum control voltage. 2

特性 Features

• VOUT Range Is 1.25 V to 5.0 V @ 3.0 A

• VPOWER Dropout < 0.40 V @ 3.0 A

• VCONTROL Dropout < 1.05 V @ 3.0 A

• 1.0 Trimmed Reference

• Fast Transient Response

• Remote Voltage Sensing

• Thermal Shutdown

• Current Limit

• Short Circuit Protection

• Drop−In Replacement for EZ1582

• Backwards Compatible with 3−Pin Regulators

• Very Low Dropout Reduces Total Power Consumption

• Pb−Free Package is Available*