Datasheet

8
TC7662B
CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TC7662B-8 9/11/96
© 2001 Microchip Technology Inc. DS21469A
TYPICAL CHARACTERISTICS
Supply Current vs. Temperature
(with Boost Pin = V
IN
)
1000
0
200
400
600
800
-40 -20 0 20 40 10060 80
I
DD
(µA)
TEMPERATURE (°C)
V
IN
= 12V
Without Load
10K Load
Voltage Conversion
101.0
100.5
100.0
99.5
99.0
98.5
98.0
112111098756423
VOLTAGE CONVERSION EFFICIENCY (%)
INPUT VOLTAGE V
IN
(V)
Output Voltage vs. Output Current
0
-2
-4
-6
-8
-10
-12
OUTPUT VOLTAGE V
OUT
(V)
OUTPUT CURRENT (mA)
V
IN
= 5V
I
OUT
= 20mA
T
A
= 25°C
Supply Current vs. Temperature
200
150
125
175
100
75
50
25
0
SUPPLY CURRENT I
DD
(µA)
TEMPERATURE (°C)
0 1009080706040 503010 20
1.5 1211.510.59.58.57.55.5 6.54.52.5 3.5
Output Source Resistance vs. Supply Voltage
100
10
30
50
70
OUTPUT SOURCE RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
Output Source Resistance vs. Temperature
100
0
20
40
60
80
-40 -20 0 20 40 10060 80
OUTPUT SOURCE RESISTANCE (Ω)
TEMPERATURE (°C)
V
IN
= 2.5V
V
IN
= 5.5V
-40 -20 0 20 40 10060 80
V
IN
= 12.5V
V
IN
= 5.5V
T
A
= 25°C