CS5253B-1GDP5 ON Semiconductor, CS5253B-1GDP5 Datasheet

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CS5253B-1GDP5

Manufacturer Part Number
CS5253B-1GDP5
Description
IC REG LDO LIN 3A ADJ D2PAK-5
Manufacturer
ON Semiconductor
Datasheet

Specifications of CS5253B-1GDP5

Regulator Topology
Positive Adjustable
Voltage - Output
1.25 ~ 5 V
Voltage - Input
Up to 13V
Voltage - Dropout (typical)
1.05V @ 3A
Number Of Regulators
1
Current - Output
3A
Current - Limit (min)
3.1A
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
TO-263-5, D²Pak (5 leads + Tab), TO-263BA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
CS5253B-1GDP5OS

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CS5253B-1GDP5
Manufacturer:
ON Semiconductor
Quantity:
5
CS5253B-1
3.0 A LDO 5-Pin Adjustable
Linear Regulator with
Remote Sense Applications
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.
be adjusted using a small capacitor on the Adjust pin.
similar to three−terminal regulators. This circuitry, which includes
overcurrent, short circuit, and overtemperature protection will
self protect the regulator under all fault conditions.
graphics controllers used on VGA cards. Its remote sense and low
value capacitance requirements make this a low cost, high
performance solution. The CS5253B−1 is optimized from the
CS5253−1 to allow a lower value of output capacitor to be used at the
expense of a slower transient response.
Features
*For additional information on our Pb−Free strategy and soldering details, please
© Semiconductor Components Industries, LLC, 2009
October, 2009 − Rev. 6
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
This new very low dropout linear regulator reduces total power
The CS5253B−1 is offered in a five−terminal D
The CS5253B−1 has a very fast transient loop response which can
Internal protection circuitry provides for “bust−proof” operation,
The CS5253B−1 is ideal for generating a 2.5 V supply to power
Pb−Free Package is Available*
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
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,
CS5253B−1GDP5
CS5253B−1GDPR5
CS5253B−1GDPR5G
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
1
Device
CASE 936AC
ORDERING INFORMATION
DP SUFFIX
A
WL
Y
WW
5
D
2
MARKING DIAGRAM
PAK−5
http://onsemi.com
= Assembly Location
= Wafer Lot
= Year
= Work Week
1
AWLYWW
(Pb−Free)
5253B−1
D
D
D
Package
Publication Order Number:
2
2
2
PAK−5
PAK−5 750 Tape & Reel
PAK−5
Tab = V
Pin 1. V
CS
2. Adjust
3. V
4. V
5. V
750 Tape & Reel
OUT
50 Units/Rail
CS5253B−1/D
SENSE
OUT
CONTROL
POWER
Shipping

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CS5253B-1GDP5 Summary of contents

Page 1

... The CS5253B−1 is ideal for generating a 2.5 V supply to power graphics controllers used on VGA cards. Its remote sense and low value capacitance requirements make this a low cost, high performance solution. The CS5253B− ...

Page 2

... 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. 4. This parameter is guaranteed by design and is not 100% production tested CONTROL OUT CS5253B− POWER SENSE 124 Adjust 100 mF 124 5 ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) erwise specified.) Characteristic V Dropout Voltage V CONTROL (Minimum V − CONTROL OUT (Note Dropout Voltage V POWER (Minimum V − POWER OUT (Note 5) V RMS Output ...

Page 4

... Junction Temperature (°C) Figure 3. Reference Voltage vs Junction Temperature V CONTROL V POWER V = 2.5 V OUT C CONTROL C = 0.1 mF ADJ 15 A/ms 80 A/ms Figure 5. Transient Response Comparison between CS5253−1 and CS5253B− Junction Temperature (°C) Figure 7. Adjust Pin Current vs Junction Temperature 0.12 0.10 0.08 0.06 0.04 ...

Page 5

V = 5.0 V CONTROL 3 3.3 V POWER 3.7 3.6 3.5 3.4 3 Junction Temperature (°C) Figure 9. Short Circuit Output Current vs Junction Temperature CONTROL ...

Page 6

... The output can never come up unregulated. The CS5253B−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 7

... DESIGN GUIDELINES Remote Sense Remote sense operation can be easily obtained with the CS5253B−1 but some care must be paid to the layout and positioning of the filter capacitors around the part. The ground side of the input capacitors on the +5.0 V and +3.3 V lines and the local V − ...

Page 8

... The discharge current depends on the value of the capacitor, the output voltage, and the rate at which V the CS5253B−1 regulator, the discharge path is through a large junction and protection diodes are not usually needed. If the regulator is used with large values of output http://onsemi ...

Page 9

... The value for R 2 the D PAK−5 package. For a high current regulator such as the CS5253B−1 the majority of heat is generated in the power transistor section. The value for R heatsink type, while the R package type, heatsink interface (is an insulator and thermal grease used?), and the contact area between the heatsink and the package ...

Page 10

... RECOMMENDED SOLDERING FOOTPRINT* 0.424 0.584 0.040 5X DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE THERMAL DATA R qJC R qJA *Depending on thermal properties of substrate. RqJA = RqJC + RqCA. PACKAGE DIMENSIONS ...

Page 11

... USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5773−3850 http://onsemi.com 11 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative CS5253B−1/D ...

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