MCP1612 Microchip Technology, MCP1612 Datasheet - Page 6

• Manufacturer Part Number: MCP1612
• Description: 1.4 MHz Synchronous Buck Regulator
• Manufacturer: Microchip Technology

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MCP1612
2.0
Note: Unless otherwise indicated, V
T
FIGURE 2-1:
V
FIGURE 2-2:
V
FIGURE 2-3:
Load Current.
DS21921B-page 6
A
IN
IN
Note:
= +25°C. Boldface specifications apply over the T
= 3.3V.
= 5.0V.
100
90
80
70
60
50
40
30
20
10
100
0
90
80
70
60
50
40
30
20
10
-0.2
-0.4
-0.6
-0.8
-1.2
-1.4
10
0
TYPICAL PERFORMANCE CURVES
-1
10
0
V
OUT
V
0
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
OUT
= 3.3V
V
= 2.5V
OUT
V
OUT
= 1.8V
200
= 2.5V
V
OUT
Load Current (mA)
Load Current (mA)
Efficiency vs. Load Current,
Efficiency vs. Load Current,
Output Voltage vs.
Load Current (mA)
= 1.2V
400
100
100
600
V
V
V
OUT
OUT
OUT
= 3.3V, V
IN
= 1.8V, V
= 1.2V V
= V
800
V
V
IN
IN
IN
IN
IN
= 3.3V
CC
= 5.0V
= 5.0V
= 3.3V
= 3.3V
1000
1000
1000
= V
SHDN
A
range of -40°C to +85°C.
= 3.3V, C
FIGURE 2-4:
Load Current.
FIGURE 2-5:
Input Voltage.
FIGURE 2-6:
Input Voltage.
OUT
0.50
0.40
0.30
0.20
0.10
0.00
6.5
6.0
5.5
5.0
4.5
4.0
3.5
1.42
1.41
1.40
1.39
1.38
1.37
1.36
= C
2.5
2.5
0
T
A
T
IN
= +85
A
= +85
T
T
= 10 µF, L = 3.3 µH, I
A
A
3
o
= -40
= -40
C
3
200
o
C
o
C
o
C
3.5
Load Current (mA)
Dropout Voltage vs.
T
Input Quiescent Current vs.
Oscillator Frequency vs.
Input Voltage (V)
3.5
A
Input Voltage (V)
© 2005 Microchip Technology Inc.
= +25
400
T
A
= +25
o
C
4
4
o
600
C
4.5
4.5
LOAD
800
V
V
V
OUT
OUT
OUT
5
5
= 100 mA,
= 2.7V
= 3.3V
= 1.8V
1000
5.5
5.5