CS5208-1GT3 ON Semiconductor, CS5208-1GT3 Datasheet - Page 7

• Manufacturer Part Number: CS5208-1GT3
• Description: IC REG LDO ADJ 8A TO220-3
• Manufacturer: ON Semiconductor

Specifications of CS5208-1GT3

• Regulator Topology: Positive Adjustable
• Voltage - Output: 1.25 ~ 4.5 V
• Voltage - Input: Up to 6V
• Voltage - Dropout (typical): 0.96V @ 8A
• Number Of Regulators: 1
• Current - Output: 8A
• Current - Limit (min): 8.1A
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: TO-220-3 (Straight Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: CS5208-1GT3OS

dissipation are determined by the design while the
maximum junction temperature and the thermal resistance
depend on the manufacturer and the package type. The
maximum power dissipation for a regulator is:
package to improve the flow of heat away from the IC and
into the surrounding air. Each material in the heat flow path
between the IC and the outside environment has a thermal
resistance. Like series electrical resistances, these
resistances are summed to determine the total thermal
resistance between the die junction and the surrounding air,
R
components. These resistive terms are measured from
P D(max) + ( V IN(max) * V OUT(min) ) I OUT(max) ) V IN(max)
ΘJC
The maximum ambient temperature and the power
A heat sink effectively increases the surface area of the
. This total thermal resistance is comprised of three
I IN(max)
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junction to case (R
sink to ambient air (R
current regulator such as the CS5208−1 the majority of heat
is generated in the power transistor section. The value for
R
on factors such as package type, heat sink interface (is an
insulator and thermal grease used?), and the contact area
between the heat sink and the package. Once these
calculations are complete, the maximum permissible value
of R
For further discussion on heat sink selection, see application
note
AND8036/D, available through the Literature Distribution
Center or via our website at http://onsemi.com.
ΘSA
R
ΘJC
ΘJA
depends on the heat sink type, while the R
“Thermal
is rated @ 1.4°C/W for the CS5208−1. For a high
can be calculated and the proper heat sink selected.
R QJA + R QJC ) R QCS ) R QSA
ΘJC
Management,”
ΘSA
), case to heat sink (R
). The equation is:
document
ΘCS
ΘCS
), and heat
depends
number