MCP1827S-1802E/AB Microchip Technology, MCP1827S-1802E/AB Datasheet - Page 21

• Manufacturer Part Number: MCP1827S-1802E/AB
• Description: IC REG LDO 1.5A 1.8V TO-220-3
• Manufacturer: Microchip Technology

Specifications of MCP1827S-1802E/AB

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: 2.3 ~ 6 V
• Voltage - Dropout (typical): 0.33V @ 1.5A
• Number Of Regulators: 1
• Current - Output: 1.5A (Min)
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-3
• Primary Input Voltage: 2.4V
• Output Voltage Fixed: 1.8V
• Dropout Voltage Vdo: 330mV
• No. Of Pins: 3
• Output Current: 1.5A
• Operating Temperature Range: -40°C To +125°C
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 6 V
• Output Voltage: 1.8 V
• Output Type: Fixed
• Dropout Voltage (max): 0.6 V at 1.5 A
• Line Regulation: 0.05 % / V
• Load Regulation: 0.5 %
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Details

5.3.1.2
To estimate the internal junction temperature, the
calculated temperature rise is added to the ambient or
offset temperature. For this example, the worst-case
junction temperature is estimated below:
As you can see from the result, this application will be
operating within the maximum operating junction
temperature of 125°C.
5.3.1.3
From this table you can see the difference in maximum
allowable power dissipation between the TO-220-5
package and the DDPAK-5 package.
©
TO-220-5 (29.3° C/W Rθ
DDPAK-5 (31.2°C/Watt Rθ
2007 Microchip Technology Inc.
P
P
P
P
D(MAX)
D(MAX)
D(MAX)
D(MAX)
T
T
T
J
J
J
Junction Temperature Estimate
Maximum Package Power
Dissipation at 60°C Ambient
Temperature
= T
= 45.12°C + 60.0°C
= 105.12°C
= (125°C – 60°C) / 29.3° C/W
= 2.218W
= (125°C – 60°C)/ 31.2° C/W
= 2.083W
JRISE
+ T
JA
A(MAX)
JA
):
):
MCP1827/MCP1827S
DS22001C-page 21