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The CS8391 is a precision, dual 5V micropower linear voltage regulator. The switched primary output (VOUT1) supplies up to 250mA while the secondary (VOUT2) is capable of supplying 100mA. Both outputs have a maximum dropout voltage of 600mV and low reverse current. Quiescent current drain is typically 150µA when supplying 100µA from each output.
The ENABLE input provides logic level control of the primary output. With the primary output disabled, quiescent current drain is typically 100µA when supplying 100µA from the secondary output.
The CS8391 is extremely robust with protection provided for reverse battery, short circuit, and overtemperature on both outputs. The CS8391 is available in a 5-lead D2PAK.
CS8391 Maximum Ratings
Input Voltage..................................................................................-15V to 45V Power Dissipation.....................................................................Internally Limited Operating Temperature Range...................................................-40 to +125 Maximum Junction Temperature ...............................................-40 to +150 Storage Temperature Range .....................................................-55 to +150 Electrostatic Discharge (Human Body Model) ................................................4kV 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
CS8391 Features
· 5V, 250mA Primary Output · 5V, 100mA Secondary Output · 3% Tolerance, Both Outputs · ON/OFF Control for Primary Output · Low Quiescent Current Drain (100µA VOUT2) · Low Reverse Current · Protection Features Reverse Battery (-15V) Short Circuit Overtemperature