MCP1640_15 Datasheet, PDF (5/32 Pages) Microchip Technology – 0.65V Start-Up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option

MCP1640/B/C/D
2.0 TYPICAL PERFORMANCE CURVES
Note:
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.
Note: Unless otherwise indicated, V_IN = EN = 1.2V, C_OUT = C_IN = 10 µF, L = 4.7 µH, V_OUT = 3.3V, I_LOAD = 15 mA, T_A = +25°C.
27.5
25.0
V_IN = 1.2V
V_OUT = 5.0V
22.5
20.0
17.5
V_OUT = 3.3V
15.0
12.5
V_OUT = 2.0V
10.0
-40 -25 -10 5 20 35 50 65 80
Ambient Temperature (°C)
FIGURE 2-1:
V_OUT I_Q vs. Ambient
Temperature in PFM Mode.
100
90 ^{VOUT = 2.0V}
80
70
60
50
40
30
20
10
0
0.01
0.1
V_IN = 1.6V
V_IN = 0.8V
V_IN = 1.2V
1
10
I_OUT (mA)
PWM / PFM
PWM Only
100
1000
FIGURE 2-4:
2.0V V_OUT PFM/PWM Mode
Efficiency vs. I_OUT.
300
V_IN = 1.2V
275
V_OUT = 5.0V
250
225
V_OUT = 3.3V
200
175
150
-40 -25 -10 5 20 35 50 65 80
Ambient Temperature (°C)
FIGURE 2-2:
V_OUT I_Q vs. Ambient
Temperature in PWM Mode.
100
90 ^{VOUT = 3.3V}
80
70
60
50
40
30
20
10
0
0.01
0.1
V_IN = 2.5V
V_IN = 0.8V
V_IN = 1.2V
1
10
I_OUT (mA)
PWM / PFM
PWM Only
100
1000
FIGURE 2-5:
3.3V V_OUT PFM/PWM Mode
Efficiency vs. I_OUT.
600
500
400
300
V_OUT = 3.3V
V_OUT = 5.0V
V_OUT = 2.0V
200
100
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
V_IN (V)
FIGURE 2-3:
Maximum I_OUT vs. V_IN After
Start-Up, V_OUT 10% Below Regulation Point.
100
90
V_OUT = 5.0V
80
70
60
50
40
30
20
10
0
0.01
0.1
FIGURE 2-6:
Efficiency vs. I_OUT.
V_IN = 3.6V
V_IN = 1.2V VIN = 1.8V
PWM / PFM
PWM Only
1
10
I_OUT (mA)
100
1000
5.0V V_OUT PFM/PWM Mode
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DS20002234D-page 5