CS5203A-3 Просмотр технического описания (PDF) - Cherry semiconductor
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CS5203A-3 Datasheet PDF : 8 Pages
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CS5203A-1,-2,-3,-5
3A Adjustable, and Fixed 1.5V, 3.3V,
and 5V Linear Regulators
Description
Features
The CS5203A series of linear regu-
lators provides 3A at adjustable
and fixed voltages with an accura-
cy of ±1% and ±2% respectively.
The adjustable version uses two
external resistors to set the output
voltage within a 1.25V to 13V
range.
The regulators are intended for use
as post regulators and microproces-
sor supplies. The fast loop response
and low dropout voltage make
these regulators ideal for applica-
tions where low voltage operation
and good transient response are
important.
The circuit is designed to operate
with dropout voltages as low as 1V
depending on the output current
level. The maximum quiescent cur-
rent is only 10mA at full load.
The regulators are fully protected
against overload conditions with
protection circuitry for Safe
Operating Area (SOA), overcurrent
and thermal shutdown.
The CS5203A is pin compatible
with the LT1085 family of linear
regulators but has lower dropout
voltage.
The regulators are available in TO-
220 and surface mount D2 packages.
s Output Current to 3A
s Output Trimmed to +/- 1%
s Dropout Voltage
1.05 V @ 3A
s Fast Transient Response
s Fault Protection Circuitry
Thermal Shutdown
Overcurrent Protection
Safe Area Protection
Block Diagram
CS5203A-1
VIN
VOUT
Package Options
3L TO-220
Tab (VOUT)
3L D2PAK
Output
Current
Limit
Thermal
Shutdown
- + Error
1
Amplifier
Bandgap
Adj
CS5203A-2, -3, -5
VIN
Thermal
Shutdown
Bandgap
Output
Current
Limit
- + Error
Amplifier
VOUT
Gnd
June, 1999 - Rev. 2
1
1
CS5203A-1
1 Adj
2 VOUT
3 VIN
CS5203A-2, -3, -5
1 Gnd
2 VOUT
3 VIN
ON Semiconductor
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885–3600 Fax: (401)885–5786
N. American Technical Support: 800-282-9855
Web Site: www.cherry–semi.com
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