CS8129 Datasheet, PDF (1/11 Pages) Cherry Semiconductor Corporation – 5V, 750mA Low Dropout Linear Regulator with Lower RESET Threshold

CS8129
5.0 V, 750 mA Low Dropout
Linear Regulator with
Lower RESET Threshold
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.
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 CS8129 is packaged in a 5 lead TO−220 and a 16 lead surface
mount package.
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*
http://onsemi.com
1
5
1
TO−220
FIVE LEAD
T SUFFIX
CASE 314D
TO−220
FIVE LEAD
TVA SUFFIX
CASE 314K
1
5
TO−220
FIVE LEAD
THA SUFFIX
CASE 314A
16
1
SO−16WB
DW SUFFIX
CASE 751G
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 8 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
1
June, 2006 − Rev. 8
Publication Order Number:
CS8129/D