tc7662a Microchip Technology Inc., tc7662a Datasheet - Page 9

• Manufacturer Part Number: tc7662a
• Description: Charge Pump Dc-to-dc Converter
• Manufacturer: Microchip Technology Inc.

5.0
Circuit of Figure 3-1, C
 2002 Microchip Technology Inc.
Note:
110
100
700
600
500
400
300
200
100
20
18
16
14
12
10
90
80
70
60
50
40
30
20
10
8
6
-60 -40 -20
0
0
-60 -40 -20
Power Conversion Efficiency vs. I
TYPICAL CHARACTERISTICS
Efficiency
8
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.
Supply Current vs. Temperature
16
Frequency vs. Temperature
24
LOAD CURRENT (mA)
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
32
P
20
20
= C
40
Supply
Current
R
40
40
48
= 10µF, C
60
60
56
T
80
A
80
64
= +25°C
V
LOAD
ESRCP
DD
100 120 140
100 120 140
72
V
DD
= 15V
= 5V
80
≈ C
165
150
135
120
105
90
75
60
45
30
15
0
ESRCR
≈ 1Ω, T
A
= 25°C unless otherwise noted.
160
140
120
100
80
60
40
20
110
100
10k
100
90
80
70
60
50
40
30
20
10
1k
10
-60 -40 -20
0
1
Output Resistance vs. Temperature
V
Output Resistance vs. Input Voltage
DD
2
= 5V, I
Oscillator Frequency vs. C
4
10
I
L
L
0
6
TEMPERATURE (°C)
= 20mA
INPUT VOLTAGE (V)
= 3mA
CAPACITANCE (pF)
20
8
100
40
10
TC7662A
V
60
DD
12
1000
= 15V, I
14
80
DS21468B-page 9
T = +25 ° C
T
T
A
A
100 120 140
16
OSC
L
= +25 ° C
= 20mA
10,000
18
20