AP1184K5-25L-U Diodes Inc, AP1184K5-25L-U Datasheet - Page 7

• Manufacturer Part Number: AP1184K5-25L-U
• Description: IC REG LDO 4A 2.5V TO263-5
• Manufacturer: Diodes Inc

Specifications of AP1184K5-25L-U

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.5V
• Voltage - Input: Up to 16V
• Voltage - Dropout (typical): 0.7V @ 4A
• Number Of Regulators: 1
• Current - Output: 4A
• Current - Limit (min): 4.2A
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-5, D²Pak (5 leads + Tab), TO-263BA
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 16 V
• Output Voltage: 2.5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.38 V at 1500 mA
• Output Current: 4 A
• Line Regulation: 0.2 %
• Load Regulation: 25 mV
• Maximum Power Dissipation: 4.4 W
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Functional Descriptions
Notes:
AP1184 Rev. 5
TO263-5L
Package
Assuming, the following conditions:
V
V
V
I
Calculate the maximum power dissipation using the following equation:
P
P
Using table below select the proper package and the amount of copper board needed.
out
out
in
ctrl
d
d
= I
= 2 * (3.3-2.5) + (2/60) * (5-2.5) = 1.68W
= 3.3V
= 2A DC Avg.
6. Above table is based on the maximum junction temperature of 135
= 2.5V
= 5V
out
As shown in the above table, any of the two packages will do the job.
* ( V
in
- V
Pad Size-1.4”X1.4”
out
) + ( I
Copper Area
out
/60) * ( V
ctrl
4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR
- V
(Continued)
out
)
www.diodes.com
θ
JA
25-45
(
o
C/W)
7 of 12
o
C.
Max Pd (T
2.4W-4.4W
A
= 25
FIXED-MODE REGULATOR
o
C)
Max Pd (T
SEPTEMBER 2008
2.0W-3.6W
©
AP1184
Diodes Incorporated
A
= 45
o
C)