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278R33

2 A Output Low Dropout Voltage Regulators

Fairchild Semiconductor 

July 2013

KA278RXXC-Series

2 A Output Low Dropout Voltage Regulators

Features

KA278RXXC-Series (33 / 05 / 12)

• 3.3 V, 5 V, 12 V Output Low-Dropout Voltage Regulator

• TO-220 Full-Mold Package (4 Pin)

• Over-Current Protection, Thermal Shutdown

• Over-Voltage Protection, Short-Circuit Protection

• Output Disable Function

KA278RA05C

• Nominal 5 V Output without Adjusting

• Output Adjustable between 1.27 V and 32 V

• 2 A Output Low-Dropout Voltage Regulator

• TO-220 Full-Mold Package (4 Pin)

• Over-Current Protection, Thermal Shutdown

• Over-Voltage Protection, Short-Circuit Protection

Description

The KA278RXXC is a low-dropout voltage regulator suit-

able for various electronic equipment. It provides a con-

stant voltage power source in a TO-220 4-lead full-mold

package. The dropout voltage is below 0.5 V in full-rated

current (2 A). This regulator has peak current protection,

thermal shutdown, and over-voltage protection.

TO-220F 4L

1

1. VIN 2. VO 3. GND 4. Vdis - KA278RXXC (33 / 05 / 12)

1.VIN 2. VO 3. GND 4. Vadj - KA278RA05C

Ordering Information

Part Number

KA278R33CTU

KA278R05CTU

KA278R12CTU

KA278RA05CTU

KA278R12CYDTU

Operating

Temperature

Range

-20 to 80°C

Top Mark

278R33

278R05

278R12

278RA05

278R12

Package

Packing Method

TO-220F 4L

Rail

TO-220F 4L (Forming)

© 2004 Fairchild Semiconductor Corporation

KA278RXXC-Series Rev. 1.1.0

1

www.fairchildsemi.com

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