CS8120 Datasheet, PDF (1/14 Pages) Cherry Semiconductor Corporation – 5V, 300mA Linear Regulator with and ENABLE RESET

CS8120
5.0 V, 300 mA Linear
Regulator with RESET
and ENABLE
The CS8120 is a 5.0 V, 300 mA precision linear regulator with two
microprocessor compatible control functions and protection circuitry
included on chip. The composite NPN−PNP output pass transistor
assures a lower dropout voltage (1.0 V @ 200 mA) without requiring
excessive supply current (2.5 mA).
The CS8120’s two logic control functions make this regulator well
suited to applications requiring microprocessor−based control at the
board or module level. ENABLE controls the output stage. A high
voltage (> 2.9 V) on the ENABLE lead turns off the regulator’s pass
transistor and sends the IC into Sleep mode where it draws only 250 mA.
The RESET function sends a RESET signal when the IC is powering up
or whenever the output voltage moves out of regulation. The RESET
signal is valid down to V_OUT = 1.0 V.
The CS8120 design optimizes supply rejection by switching the
internal bandgap reference from the supply input to the regulator
output as soon as the nominal output voltage is achieved. Additional
on chip filtering enhances rejection of high frequency transients on all
external leads.
The CS8120 is fault protected against short circuit, over voltage and
thermal runaway conditions.
Features
• 5.0 V ±4.0% Output Voltage 300 mA
• Low Dropout Voltage (1.0 V @ 150 mA)
• Low Quiescent Current (2.5 mA @ I_OUT = 150 mA)
• mP Compatible Control Functions
− RESET
− ENABLE
• Low Current Sleep Mode
− I_Q = 250 mA
• Fault Protection
− Thermal Shutdown
− Short Circuit
− 60 V Load Dump
http://onsemi.com
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TO−220−5
T SUFFIX
CASE 314D
TO−220−5
TVA SUFFIX
CASE 314K
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CASE 314A
D²PAK−5
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CASE 936AC
DIP−8
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CASE 626
SO−14
D SUFFIX
CASE 751A
© Semiconductor Components Industries, LLC, 2004
January, 2004 − Rev. 8
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 10 of this data sheet.
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Publication Order Number:
CS8120/D