CS8129

Features:

·5V +/- 3% Regulated Output
·Low Dropout Voltage (0.6V @ 0.5A)
·750mA Output Current Capability
·Reduced Threshold for use with 4V Micro- processors
·Externally RESET Programmed RESET Delay
·Fault Protection Reverse Battery 60V, -50V Peak Transient Voltage Short Circuit Thermal Shutdown


Pinout




Specifications

Input Operating Range.....................................................................................................-0.5 to 26V
Power Dissipation...................................................................................................Internally Limited
Peak Transient Voltage (46V Load Dump @ 14V V_IN) ........................................................-50V, 60V
Output Current .......................................................................................................Internally Limited
ESD Susceptibility (Human Body Model)........................................................................................4kV
Junction Temperature...................................................................................................-55 to 150
Storage Temperature...................................................................................................-55 to 150
Lead Temperature Soldering
          Wave Solder (through hole styles only) ............................................10 sec. max, 260 peak
          Reflow (SMD styles only) ...............................................60 sec. max above 183, 230 peak 


Description

The CS8129 is a precision 5V linear reg- ulator capable of sourcing 750mA. The RESET threshold voltage has been lowered to 4.2V so that the regulator can be used with 4V microprocessors.

The lower RESET threshold also per- mits operation under low battery condi- tions (5.5V plus a diode). The RESET's delay time is externally programmed using a discrete RC network. During power up, 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 correct- ly as long as the output voltage remains at or above 1V. Hysteresis is included in the Delay and the RESET comparators to improve noise immunity. A latching discharge circuit CS8129 is used to discharge the delay capacitor when it is triggered by a brief fault condition.

The regulator CS8129 is protected against a variety of fault conditions: i.e. reverse battery, overvoltage, short circuit and thermal runaway conditions. The regu- lator is protected against voltage tran- sients ranging from -50V to +40V. Short circuit current is limited to 1.2A (typ).
The CS8129 is packaged in a 5 lead TO-220 and a 16 lead surface mount package.