MIC49500WU Micrel Inc, MIC49500WU Datasheet - Page 5

• Manufacturer Part Number: MIC49500WU
• Description: 5A LDO, Low Vin, Low Vout, Fast Transient Response, Cap Stable ( )
• Manufacturer: Micrel Inc

Specifications of MIC49500WU

• Regulator Topology: Positive Adjustable
• Voltage - Output: 0.7 ~ 6 V
• Voltage - Input: 1.4 ~ 6 V
• Voltage - Dropout (typical): 0.29V @ 5A
• Number Of Regulators: 1
• Current - Output: 5A
• Current - Limit (min): 5.5A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-7, D²Pak (7 leads + Tab), TO-263CA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-2350; MIC49500WU

July 2007
Typical Characteristics
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
1.0
60
55
50
45
40
35
30
25
20
80
70
60
50
40
30
20
10
60
50
40
30
20
10
0
0
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
0
0
0
V
100µA
BIAS
vs. Output Current
vs. Output Current
OUTPUT CURRENT (A)
1
1
vs. Load Current
OUTPUT CURRENT (A)
LOAD CURRENT (A)
TEMPERATURE (°C)
vs. Temperature
Ground Current
Bias Current
Bias Current
Dropout Voltage
V
V
V
C
20 40 60 80
1A
IN
OUT
BIAS
OUT
2
2
500mA
= V
V
V
V
V
C
V
V
V
C
= 1.8V
IN
OUT
EN
BIAS
= 3.3V
= C
OUT
IN
OUT
BIAS
OUT
OUT
2.5A
3
V
V
C
3
= V
= V
= V
BIAS
IN
OUT
OUT
= 1.2V
= 10µF
= 3.3V
= 1.5V
= 10µF
= 3.3V
+ 1V
OUT
= 4V
OUT
IN
= 10µF
= 3V
= 10µF
4
4
5A
+ 1V
+ 1V
5
5
2.5
2.0
1.5
1.0
0.5
800
780
760
740
720
700
680
660
640
620
600
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
60
50
40
30
20
10
0
0
0
0
500mA
50mA
0.5
Enable Threshold
ENABLE VOLTAGE (V)
Room
1A
1
Hot
vs. Input Voltage
INPUT VOLTAGE (V)
2.5A
vs. Temperature
TEMPERATURE (°C)
vs. Temperature
TEMPERATURE (°C)
Ground Current
Output Voltage
Output Voltage
1
20 40 60 80
20 40 60 80
2
5A
1.5
2.5A
5
V
V
C
V
V
V
C
I
OUT
5A
3
IN
OUT
OUT
IN
OUT
BIAS
OUT
Cold
V
V
C
= V
= V
2
OUT
BIAS
OUT
= 100µA
0
= 3V
= 10µF
= 1.5V
= 10µF
= 3.3V
OUT
OUT
4
2.5
= 1.5V
= 10µF
= 3.3V
100µA
+ 1V
+ 1V
5
3
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.30
350
300
250
200
150
100
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
50
10
0
0
9
8
7
6
5
4
3
2
1
0
2.5
0
0
vs. Output Current
3
1
vs. Input Voltage
1
OUTPUT CURRENT (I)
Dropout Voltage
TEMPERATURE (°C)
INPUT VOLTAGE (V)
vs. Temperature
vs. Bias Voltage
BIAS VOLTAGE (V)
Output Voltage
Output Voltage
Current Limit
3.5
50mA
20 40 60 80
2
2
V
V
C
IN
OUT
OUT
4
V
V
C
V
V
V
C
5A
= V
3
IN
OUT
IN
OUT
BIAS
OUT
OUT
V
V
V
C
3
2.5A
= 1.5V
= C
= V
= V
4.5
M9999-071307
IN
OUT
BIAS
OUT
OUT
= 1.5V
= 10µF
= 1.5V
= 10µF
= 3.3V
= 2.5V
IN
OUT
OUT
4
= 0V
= 10µF
+ 1V
= 3.3V
= 10µF
4
5
= 1V
+ 1V
5
5.5
5