CS5203A-1 Datasheet, PDF (1/10 Pages) ON Semiconductor – 3.0 A Adjustable, and Fixed 1.5 V, 3.3 V and 5.0 V Linear Regulators

CS5203A−1, CS5203A−2,
CS5203A−3, CS5203A−5
3.0 A Adjustable, and
Fixed 1.5 V, 3.3 V and 5.0 V
Linear Regulators
The CS5203A series of linear regulators provides 3.0 A at
adjustable and fixed voltages with an accuracy of ±1.0% and ±2.0%
respectively. The adjustable version uses two external resistors to set
the output voltage within a 1.25 V to 13 V range.
The regulators are intended for use as post regulators and
microprocessor supplies. The fast loop response and low dropout
voltage make these regulators ideal for applications where low voltage
operation and good transient response are important.
The circuit is designed to operate with dropout voltages as low as
1.0 V depending on the output current level. The maximum quiescent
current is only 10 mA 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−220−3 and surface mount
D²PAK−3 packages.
Features
• Pb−Free Package is Available
• Output Current to 3.0 A
• Output Trimmed to ±1.0%
• Dropout Voltage 1.05 V @ 3.0 A
• Fast Transient Response
• Fault Protection Circuitry
♦ Thermal Shutdown
♦ Overcurrent Protection
♦ Safe Area Protection
http://onsemi.com
12 ₃
123
123
TO−220
THREE LEAD
T SUFFIX
CASE 221A
D²PAK−3
DP SUFFIX
CASE 418AB
D²PAK−3
(Short Lead)
DPS SUFFIX
CASE 418F
Adjustable
Output
Tab = V_OUT
Pin 1. Adj
2. V_OUT
3. V_IN
Fixed
Output
Tab = V_OUT
Pin 1. GND
2. V_OUT
3. V_IN
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.
V_OUT
V_IN
Thermal
Shutdown
Bandgap
Output
Current
Limit
− + _Error
Amplifier
Adj
Figure 1. Block Diagram − CS5203A−1
© Semiconductor Components Industries, LLC, 2004
1
June, 2004 − Rev. 7
Publication Order Number:
CS5203A/D