cs5203a-1 ON Semiconductor, cs5203a-1 Datasheet

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cs5203a-1

Manufacturer Part Number
cs5203a-1
Description
3.0 A Adjustable, And Fixed 1.5 V, 3.3 V And 5.0 V Linear Regulators
Manufacturer
ON Semiconductor
Datasheet

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CS5203A-1
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CS5203A-1
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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
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.
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.
1.0 V depending on the output current level. The maximum quiescent
current is only 10 mA at full load.
protection circuitry for Safe Operating Area (SOA), overcurrent and
thermal shutdown.
regulators but has lower dropout voltage.
D
Features
June, 2004 − Rev. 7
V
2
The CS5203A series of linear regulators provides 3.0 A at
The regulators are intended for use as post regulators and
The circuit is designed to operate with dropout voltages as low as
The regulators are fully protected against overload conditions with
The CS5203A is pin compatible with the LT1085 family of linear
The regulators are available in TO−220−3 and surface mount
IN
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
PAK−3 packages.
Semiconductor Components Industries, LLC, 2004
Thermal Shutdown
Overcurrent Protection
Safe Area Protection
Figure 1. Block Diagram − CS5203A−1
Shutdown
Bandgap
Thermal
+
Error
Amplifier
Current
Output
Limit
1
V
Adj
OUT
1 2
1 2
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
See general marking information in the device marking
section on page 8 of this data sheet.
1
3
3
2
3
DEVICE MARKING INFORMATION
ORDERING INFORMATION
http://onsemi.com
THREE LEAD
CASE 418AB
(Short Lead)
DPS SUFFIX
CASE 221A
CASE 418F
DP SUFFIX
T SUFFIX
D
D
TO−220
2
2
PAK−3
PAK−3
Publication Order Number:
Tab = V
Pin 1. Adj
Tab = V
Pin 1. GND
Adjustable
CS5203A/D
Output
Output
Fixed
2. V
3. V
2. V
3. V
OUT
OUT
OUT
IN
OUT
IN

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cs5203a-1 Summary of contents

Page 1

... 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 ...

Page 2

... CS5203A−1, CS5203A−2, CS5203A−3, CS5203A− Figure 2. Block Diagram − CS5203A−2, −3, −5 MAXIMUM RATINGS Supply Voltage Operating Temperature Range Junction Temperature Storage Temperature Range Lead Temperature Soldering: Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously ...

Page 3

... Thermal Shutdown Thermal Shutdown Hysteresis ELECTRICAL CHARACTERISTICS ( +150 C, unless otherwise specified Characteristic Fixed Output Voltage (CS5203A−2, CS5203A−3, CS5203A−5) Reference Voltage (Notes 6 and 7) CS5203A−5 V CS5203A−3 V CS5203A−2 V Line Regulation 1.5 V Load Regulation (Notes 6 and 7) ...

Page 4

... CS5203A−1, CS5203A−2, CS5203A−3, CS5203A−5 TYPICAL PERFORMANCE CHARACTERISTICS 1.15 1.10 1.05 T CASE 1.00 0.95 0. CASE 0.85 T 0.80 0.75 0. Output Current (A) Figure 3. Dropout Voltage vs. Output Current 0.100 0.075 0.050 CASE 0.025 0.000 0 1 Output Current (A) Figure 5. Load Regulation vs. Output Current ...

Page 5

... tantalum capacitor will work for most applications, but with high current regulators such as the CS5203A the transient response and stability improve with higher values of capacitor. The majority of applications for this regulator involve large changes in load current so the output capacitor must supply the instantaneous load current ...

Page 6

... Figure 12. Protection Diode Scheme for Fixed Output Regulators Output Voltage Sensing Since the CS5203A is a three terminal regulator not possible to provide true remote load sensing. Load regulation is limited by the resistance of the conductors connecting the regulator to the load. For best results the fixed regulators should be connected as shown in Figure 13 ...

Page 7

... The value for R for a given package type based on an average die size. For (1) a high current regulator such as the CS5203A the majority of the heat is generated in the power transistor section. The value for R depends on factors such as package type, Heatsink interface (is an insulator and thermal grease used?), and the contact area between the Heatsink and the package ...

Page 8

... CS5203A−1, CS5203A−2, CS5203A−3, CS5203A−5 ORDERING INFORMATION Device Type CS5203A−1GT3 3.0 A, Adj. Output CS5203A−1GDP3 3.0 A, Adj. Output CS5203A−1GDPR3 3.0 A, Adj. Output CS5203A−2GT3 3.0 A, 1.5 V Output CS5203A−2GDP3 3.0 A, 1.5 V Output CS5203A−2GDPR3 3.0 A, 1.5 V Output CS5203A−2GDPR3G 3.0 A, 1.5 V Output CS5203A−2GDPSR3 3.0 A, 1.5 V Output CS5203A− ...

Page 9

... CS5203A−1, CS5203A−2, CS5203A−3, CS5203A−5 F −B− −Y− 0.25 (0.010 For D Dimensions − Contact Factory PACKAGE DIMENSIONS TO−220−3 T SUFFIX CASE 221A−08 ISSUE AA SEATING −T− PLANE ...

Page 10

... CS5203A−1, CS5203A−2, CS5203A−3, CS5203A− 0.13 (0.005 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...

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