MCP1640 Microchip Technology Inc., MCP1640 Datasheet - Page 7

• Manufacturer Part Number: MCP1640
• Description: 0.65v Start-up Synchronous Boost Regulator With True Output Disconnect Or Input/output Bypass Option
• Manufacturer: Microchip Technology Inc.

Note: Unless otherwise indicated,
FIGURE 2-13:
V
FIGURE 2-14:
R
FIGURE 2-15:
Current vs. V
 2010 Microchip Technology Inc.
IN
DSON
.
16
14
12
10
8
6
4
2
0
5
4
3
2
1
0
10000
0
1000
100
1
vs. > of V
10
0.8
0.5
P - Channel
1.5
N - Channel
1.1
IN
.
V
1
OUT
2
1.4
IN
V
OUT
= 2.0V
or V
= 2.0V
Input No Load Current vs.
N-Channel and P-Channel
PFM / PWM Threshold
1.7
1.5
2.5
V
OUT
> V
OUT
= 2.0V
IN
V
2
V
IN
V
or V
OUT
3
2
IN
(V)
.
V
2.3
(V)
= 3.3V
OUT
OUT
3.5
= 3.3V
2.5
V
V
2.6
IN
OUT
PWM / PFM
PWM ONLY
= EN = 1.2V, C
= 3.3V
4
2.9
3
V
V
OUT
V
OUT
OUT
3.2
= 5.0V
4.5
= 5.0V
= 5.0V
3.5
3.5
5
OUT
4
= C
IN
= 10 µF, L = 4.7 µH, V
FIGURE 2-16:
Mode Waveforms.
FIGURE 2-17:
PWM Mode Waveforms.
FIGURE 2-18:
Waveforms.
MCP1640/B/C/D
OUT
= 3.3V, I
MCP1640 3.3V V
MCP1640B 3.3V V
MCP1640/B High Load
LOAD
= 15 mA, T
DS22234A-page 7
OUT
A
OUT
= +25°C.
PFM