CS8129集成电路（IC）的线性+开关稳压器规格书PDF中文资料

CS8129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CS8129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。

The CS8129 is a precision 5.0 V linear regulator capable of sourcing 750 mA. The RESET threshold voltage has been lowered to 4.2 V so that the regulator can be used with 4.0 V microprocessors. The lower RESET threshold also permits operation under low battery conditions (5.5 V plus a diode). The RESET’s delay time is externally programmed using a discrete RC network. During powerup, or when the output goes out of regulation, RESET remains in the low state for the duration of the delay. This function is independent of the input voltage and will function correctly as long as the output voltage remains at or above 1.0 V. Hysteresis is included in the Delay and the RESET comparators to improve noise immunity. A latching discharge circuit is used to discharge the delay capacitor when it is triggered by a brief fault condition.

特性 Features

• 5.0 V ±3.0 Regulated Output

• Low Dropout Voltage (0.6 V @ 0.5 A)

• 750 mA Output Current Capability

• Reduced RESET Threshold for Use with 4.0 V Microprocessors

• Externally Programmed RESET Delay

• Fault Protection

− Reverse Battery

− 60 V, −50 V Peak Transient Voltage

− Short Circuit

− Thermal Shutdown

• Pb−Free Packages are Available*