CS5253-1GDPR5G ONSEMI [ON Semiconductor], CS5253-1GDPR5G Datasheet

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CS5253-1GDPR5G

Manufacturer Part Number
CS5253-1GDPR5G
Description
3.0 A LDO 5−Pin Adjustable Linear Regulator
Manufacturer
ONSEMI [ON Semiconductor]
Datasheets
CS5253−1
3.0 A LDO 5−Pin Adjustable
Linear Regulator
dissipation in the application. To achieve very low dropout, the
internal pass transistor is powered separately from the control
circuitry. Furthermore, with the control and power inputs tied together,
this device can be used in single supply configuration and still offer a
better dropout voltage than conventional PNP − NPN based LDO
regulators. In this mode the dropout is determined by the minimum
control voltage.
which allows for the implementation of a remote−sense pin permitting
very accurate regulation of output voltage directly at the load, where it
counts, rather than at the regulator. This remote sensing feature
virtually eliminates output voltage variations due to load changes and
resistive voltage drops. Typical load regulation measured at the sense
pin is less than 1.0 mV for an output voltage of 2.5 V with a load step
of 10 mA to 3.0 A.
adjusted using a small capacitor on the Adjust pin.
similar to three−terminal regulators. This circuitry, which includes
overcurrent, short circuit, and over−temperature protection will self
protect the regulator under all fault conditions.
graphics controllers used on VGA cards.
Features
*For additional information on our Pb−Free strategy and soldering details, please
© Semiconductor Components Industries, LLC, 2006
September, 2006− Rev. 11
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
This new very low dropout linear regulator reduces total power
The CS5253−1 is offered in a five−terminal D
The CS5253−1 has a very fast transient loop response which can be
Internal protection circuitry provides for “bust−proof” operation,
The CS5253−1 is ideal for generating a 2.5 V supply to power
V
V
V
1.0% Trimmed Reference
Fast Transient Response
Remote Voltage Sensing
Thermal Shutdown
Current Limit
Short Circuit Protection
Drop−In Replacement for EZ1582
Backwards Compatible with 3−Pin Regulators
Very Low Dropout Reduces Total Power Consumption
Pb−Free Package is Available*
OUT
POWER
CONTROL
Range Is 1.25 V to 5.0 V @ 3.0 A
Dropout < 0.40 V @ 3.0 A
Dropout < 1.05 V @ 3.0 A
2
PAK−5 package,
1
†For information on tape and reel specifications,
CS5253−1GDP5
CS5253−1GDPR5
CS5253−1GDPR5G
1
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Device
5
CS5253−1
A
WL
Y
WW
G
ORDERING INFORMATION
CASE 936AC
DP SUFFIX
D
MARKING DIAGRAM
http://onsemi.com
2
PAK−5
1
AWLYWWG
= Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Pb−Free)
Package
D
D
D
5253−1
2
2
2
PAK−5
PAK−5
PAK−5
Publication Order Number:
CS
Tab = V
Pin
1. V
2. Adjust
3. V
4. V
5. V
750/Tape & Reel
750/Tape & Reel
OUT
50 Units/Rail
Shipping
SENSE
OUT
CONTROL
POWER
CS5253−1/D

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CS5253-1GDPR5G Summary of contents

Page 1

... Internal protection circuitry provides for “bust−proof” operation, similar to three−terminal regulators. This circuitry, which includes overcurrent, short circuit, and over−temperature protection will self protect the regulator under all fault conditions. The CS5253−1 is ideal for generating a 2.5 V supply to power graphics controllers used on VGA cards. Features • ...

Page 2

... The V pin current is the drive current required for the output transistor. This current will track output current with roughly a 1:100 CONTROL ratio. The minimum value is equal to the quiescent current of the device CONTROL OUT CS5253− POWER SENSE Adjust 100 mF 5.0 V Figure 1 ...

Page 3

... ELECTRICAL CHARACTERISTICS Characteristic CS5253−1 Ripple Rejection (Note 4) Thermal Regulation V Dropout Voltage CONTROL (Minimum V − CONTROL OUT (Note 5) V Dropout Voltage POWER (Minimum V − POWER OUT (Note 5) RMS Output Noise Temperature Stability Thermal Shutdown (Note 6) Thermal Shutdown Hysteresis V Supply Only Output Current ...

Page 4

V POWER V CONTROL BIAS and TSD TYPICAL PERFORMANCE CHARACTERISTICS 1.253 1.252 1.251 1.250 1.249 1.248 1.247 Junction Temperature (°C) Figure 3. Reference Voltage vs Junction Temperature V = 5.0 V CONTROL V = 3.3 V ...

Page 5

Junction Temperature (°C) Figure 7. Adjust Pin Current vs Junction Temperature 3 2.75 V CONTROL 3 2.05 V POWER 3.7 3.6 3.5 3.4 3.3 0 ...

Page 6

T = 120°C J 350 300 250 200 T 150 100 0.5 1.0 1.5 Output Current (A) Figure 13. V Dropout Voltage vs Output POWER Current 6.0 V POWER 25 V ...

Page 7

... The output can never come up unregulated. The CS5253−1 can also be used as a single supply device with the control and power inputs tied together. In this mode, the dropout will be determined by the minimum control voltage. ...

Page 8

... where T is the time for the regulation loop to begin to respond. The very fast transient response time of the CS5253−1 allows the ESR effect to dominate. For microprocessor applications customary to use an output capacitor network consisting of several tantalum and ceramic capacitors in parallel. This reduces the overall ESR and reduces the instantaneous output voltage drop under transient load conditions ...

Page 9

... The value for PAK−5 package. For a high current regulator such as the on the CS5253−1 the majority of heat is generated in the power OUT transistor section. The value for R sink type, while the R package type, heat sink interface (is an insulator and thermal grease used?), and the contact area between the heat sink and the package ...

Page 10

... P 0.090 0.110 2. 0.095 0.105 2.41 U 0.30 REF 7.62 REF V 0.305 REF 7.75 REF W 0.010 2 PAK−5 Unit 2.5 °C/W 10−50* °C/W ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative CS5253−1/D MAX 10.31 8.64 4.57 0.91 1.40 15.75 1.68 0.25 2.74 0.58 2. 2.67 0.25 ...

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