MIC2176-1 MICREL [Micrel Semiconductor], MIC2176-1 Datasheet - Page 8

• Manufacturer Part Number: MIC2176-1
• Description: Wide Input Voltage, Synchronous Buck Controllers Featuring Adaptive On-Time Control
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Typical Characteristics (Continued)
Case Temperature* : The temperature measurement was taken at the hottest point on the MIC2176 case mounted on a 5 square inch PCB, see
Thermal Measurement section. Actual results will depend upon the size of the PCB, ambient temperature and proximity to other heat emitting
components.
November 2010
95
90
85
80
75
70
65
60
55
50
45
40
-0.2%
80
60
40
20
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
0
0
0
IC Case Temperature* (V
0
1
1
28V
OUTPUT CURRENT (A)
vs. Output Current
1
OUTPUT CURRENT (A)
48V
vs. Output Current
IN
OUTPUT CURRENT (A)
vs. Output Current
IN
Line Regulation
60V
Efficiency
2
2
IN
2
MIC2176-2
V
V
OUT
DD
V
V
V
3
IN
OUT
DD
3
= 5V LINEAR
3
= 3.3V
= 6V to 70V
= 5V
= 3.3V
MIC2176-2
V
V
V
IN
OUT
DD
IN
= 5V
= 48V
= 3.3V
= 48V)
4
4
4
5
5
5
100
0.808
0.806
0.804
0.802
0.800
0.798
0.796
0.794
0.792
80
60
40
20
240
220
200
180
160
0
0
IC Case Temperature* (V
0
0
Switching Frequency
1
1
vs. Output Current
1
vs. Output Current
OUTPUT CURRENT (A)
vs. Output Current
Feedback Voltage
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
2
2
2
8
3
3
3
V
V
V
IN
OUT
DD
MIC2176-2
V
V
V
IN
OUT
DD
MIC2176-2
V
V
V
= 48V
= 5V
IN
IN
OUT
DD
= 60V
= 3.3V
= 5V
= 3.3V
= 48V
= 5V
= 60V)
= 3.3V
4
4
4
5
5
5
60
40
20
3.333
3.322
3.311
3.300
3.289
3.278
3.267
0
0
IC Case Temperature* (V
0
1
vs. Output Current
1
OUTPUT CURRENT (A)
vs. Output Current
OUTPUT CURRENT (A)
Output Voltage
2
2
M9999-111710-A
3
V
V
V
3
MIC2176-2
V
V
V
IN
OUT
DD
IN
OUT
DD
= 48V
= 5V
= 28V
= 5V
= 3.3V
IN
= 3.3V
= 28V)
4
4
MIC2176
5
5