The CS8122 is a precision 5.0 V linear regulator capable of sourcing in excess of 750 mA. The RESET’s delay time is externally programmed using a discrete RC network. During power up, or when the output goes out of regulation, the RESET lead 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.

The regulator is protected against a variety of fault conditions: i.e. reverse battery, overvoltage, short circuit and thermal runaway conditions. The regulator is protected against voltage transients ranging from −50 V to +40 V. Short circuit current is limited to 1.2 A (typ).

The CS8122 is an improved replacement for the CS8126 and features a tighter tolerance on its output voltage (2.0 vs. 4.0).

The CS8122 is packaged in a 5 lead TO−220 with copper tab. The copper tab can be connected to a heat sink if necessary.

Features

• 5.0 V ±2.0 Regulated Output

• Low Dropout Voltage (0.6 V @ 0.5 A)

• 750 mA Output Current Capability

• Externally Programmed RESET Delay

• Fault Protection

− Reverse Battery

− 60 V Load Dump

− −50 V Reverse Transient

− Short Circuit

− Thermal Shutdown

• Pb−Free Packages are Available*

CS8122属于集成电路（IC） > 线性 + 开关稳压器。安森美半导体公司制造生产的CS8122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。