Max619 regulated 5v charge-pump dc-dc converter, Typical operating characteristics – Rainbow Electronics MAX619 User Manual
Page 3
MAX619
Regulated 5V Charge-Pump
DC-DC Converter
________________________________________________________________________________________
3
TOP TRACE: OUTPUT CURRENT, 0mA to 25mA, 10mA/div
BOTTOM TRACE: OUTPUT VOLTAGE, 5mV/div, AC-COUPLED
2ms/div
LOAD-TRANSIENT RESPONSE
R
LOAD
= 250
Ω
, V
OUT
= 5V, I
OUT
= 20mA
TOP TRACE: V
IN
= 2V to 3V, 1V/div
BOTTOM TRACE: OUTPUT VOLTAGE, 50mV/div, AC-COUPLED
2ms/div
LINE-TRANSIENT RESPONSE (I
OUT
= 20mA)
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
60
1
10
100
EFFICIENCY vs. OUTPUT CURRENT
AND INPUT VOLTAGE
I
OUT
(mA)
EFFICIENCY (%)
65
70
75
80
85
90
V
IN
= 1.8V
V
IN
= 3.0V
V
IN
= 2.0V
V
IN
= 3.3V
V
IN
= 3.6V
V
IN
= 2.4V
V
IN
= 2.7V
0
0
INPUT CURRENT vs. OUTPUT CURRENT
I
OUT
(mA)
I
IN
(mA)
10 20 30 40 50 60 70 80 90 100
20
40
60
80
100
120
140
160
180
200
V
IN
I
OUT
MAX
A
B
C
D
E
F
G
1.8
2.0
2.4
2.7
3.0
3.6
3.3
18
36
41
64
72
94
100
A
B
C
D
E
G
F
NO-LOAD INPUT CURRENT
vs. INPUT VOLTAGE
V
IN
(V)
I
IN
(
µ
A)
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.01
0.1
1.0
10
100
1000
SHDN = V
IN
SHDN = 0V
4.75
4.80
1
10
100
OUTPUT VOLTAGE vs. OUTPUT CURRENT
I
OUT
(mA)
V
OUT
(V)
4.85
4.90
4.95
5.00
5.05
V
IN
= 1.8V
V
IN
= 2.0V
V
IN
= 3.3V
V
IN
= 2.4V, 2.7V
= 3.6V
V
IN
= 3.6V
V
IN
= 3.0V
OUTPUT VOLTAGE vs. INPUT VOLTAGE
V
IN
(V)
V
OUT
(V)
2.0
1.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
4.94
4.96
4.98
5.00
5.02
5.04
5.06
I
OUT
= 20mA
EFFICIENCY vs. INPUT VOLTAGE
V
IN
(V)
EFFICIENCY (%)
1.5
60
65
70
75
80
85
90
I
OUT
= 10mA
2.0
2.5
3.0
3.5
4.0