MIC2940A-3.3BU TR Micrel Inc, MIC2940A-3.3BU TR Datasheet - Page 5

• Manufacturer Part Number: MIC2940A-3.3BU TR
• Description: IC REG LDO 1.25A 3.3V TO-263
• Manufacturer: Micrel Inc

Specifications of MIC2940A-3.3BU TR

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 26V
• Voltage - Dropout (typical): 0.4V @ 1.25A
• Number Of Regulators: 1
• Current - Output: 1.25A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-3, D²Pak (3 leads + Tab), TO-263AA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Limit (min): -
• Other names: MIC2940A-3.3BUTR; MIC2940A-3.3BUTR

Typical Characteristics
Micrel, Inc.
July 2007
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
0.40
0.30
0.20
0.10
0.00
500
400
300
200
100
0.1
40
10
0.00
0
1
-60 -30
-60 -30
11
Fixed 3.3V Output Voltage
vs. Output Current
0.25
vs. Output Current
OUTPUT CURRENT (A)
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
TEMPERATURE (°C)
Ground Current
Dropout Voltage
vs. Temperature
vs. Temperature
Ground Current
0
0
0
0.50
I
LOAD
30
30
100
0.75
= 5mA
60
60
1000
90 120 150
90 120 150
1.00
10000
10A
1.25
1000
800
600
400
200
400
300
200
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
0
-60 -30
-60 -30
-60 -30
0
Short Circuit and Maximum
Current vs. Temperature
1
V
SUPPLY VOLTAGE (V)
vs. Supply Voltage
OUT
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
vs. Temperature
Dropout Voltage
vs. Temperature
Ground Current
Ground Current
2
0
0
0
= V
I
LOAD
3
I
LOAD
NOMINAL
3 SAMPLES
FIXED 5V
I
FIXED 3.3V
30
30
30
V
LOAD
VERSION
OUT
4
= 100mA
5
= 1.25A
60
60
60
= 5mA
= 0V
5
– 0.5V
90 120 150
90 120 150
90 120 150
6
7
8
1000
-200
800
600
400
200
50
40
30
20
10
50
40
30
20
10
6
5
4
3
2
1
0
0
0
0
-30
-60 -30
0
0
R
LOAD
-20
vs. Supply Voltage
1
I
LOAD
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
2
INPUT VOLTAGE (V)
TEMPERATURE (°C)
vs. Input Voltage
vs. Temperature
Characteristics
Ground Current
Ground Current
Ground Current
= 100
0
-10
FIXED 3.3V DEVICE
I
2
LOAD
= 5mA
Dropout
I
LOAD
4
30
I
I
LOAD
LOAD
MIC2940A/2941A
= 1.25A
0
3
= 100mA
60
= 1.25A
= 1.25A
6
M9999-071307
10
4
90 120 150
8
20
5
10
30
6