KA278RA05CYDTU Fairchild Semiconductor, KA278RA05CYDTU Datasheet - Page 16

• Manufacturer Part Number: KA278RA05CYDTU
• Description: IC REG LDO 2A ADJ TO-220FL-4
• Manufacturer: Fairchild Semiconductor

Specifications of KA278RA05CYDTU

• Regulator Topology: Positive Adjustable
• Voltage - Output: 1.25 ~ 32 V
• Voltage - Input: Up to 35V
• Number Of Regulators: 1
• Current - Output: 2A (Max)
• Operating Temperature: -20°C ~ 80°C
• Mounting Type: Through Hole
• Package / Case: TO-220-4 Full Pack (Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -

KA278RXXC-SERIES
Typical Application
KA278R33/05/51/09/12C
• Ci is required if regulator is located at an appreciable distance from power supply filter.
• Co improves stability and transient response.(Co > 47 F)
KA278RA05
• Ci is required if regulator is located at an appreciable distance from power supply filter.
• Co improves stability and transient response.(C
16
Input
Input
Figure 3. Internal Resistor(R1,R2) Variation vs. Temperature(Tj)
Input
Input
Input
Figure 2. Application Circuit (Adjustable Mode)
Vo = 1.25 ( 1 +
Vo = 1.25 ( 1 +
Vo = 1.25 ( 1 +
Ci
Ci
Vin
Ci
Ci
Ci
-10
-10
20
20
15
15
10
10
-5
-5
25
25
0
0
5
5
1
-50
-50
Figure 4. Application Circuit (Fixed Mode)
Figure 1. Application Circuit
1
1
1
1
1
O
Vin
Vin
KA278RA05
KA278RA05
-25
-25
-25
Vin
Vin
Vin
KA278RA05
KA278RA05
KA278RA05
> 47 F)
Junction temperature Tj(℃)
Junction temperature Tj(℃)
R
R
R
R
R
R
Vdis
1
1
1
2
2
2
GND
GND
GND
GND
GND
//R
//R
//R
0
0
0
//R
//R
//R
3
3
3
3
3
4
3
3
3
4
4
4
Vadj
Vadj
Vadj
Vadj
Vadj
) R
) R
) R
25
25
25
Vo
Vo
Vo
Vo
Vo
4
4
4
2
2
2
2
2
4
4
1
1
1
= 1.8k
= 1.8k
= 1.8k
50
50
50
75
75
75
R3
R3
R3
R4
R4
R4
, R
, R
, R
2
3
100
100
100
GND
Co
Co
Disable Signal
2
2
2
Vo
= 0.6k
= 0.6k
= 0.6k
Co
Co
Co
125
125
125
R
R
L
L
R
R
R
Output = 5V
Output = 5V
L
L
L
Output
Output
Output