Typical operating characteristics – Rainbow Electronics MAX8569B User Manual
Page 4
OUTPUT VOLTAGE AND INPUT CURRENT
vs. INPUT VOLTAGE (SHUTDOWN, NO LOAD)
MAX8569 toc06
BATTERY VOLTAGE (V)
OUTPUT VOLTAGE (V)
BATTERY CURRENT (
µ
A)
5
4
3
2
1
1
2
3
4
5
6
0
1
2
3
4
5
6
0
0
6
V
OUT
I
BATT
Typical Operating Characteristics
(Circuit of Figure 2, V
OUT
= 3.3V, V
BATT
= +2V, T
A
= +25°C, circuit of Figure 1, T
A
= +25°C, unless otherwise noted.)
MAX8569A/MAX8569B
200mA Step-Up Converters in 6-Pin
SOT23 and TDFN
4
_______________________________________________________________________________________
MAXIMUM OUTPUT CURRENT
vs. BATTERY VOLTAGE
MAX8569 toc04
BATTERY VOLTAGE (V)
MAXIMUM OUTPUT CURRENT (mA)
5.5
4.5
3.5
2.5
100
200
300
400
500
600
0
1.5
V
OUT
= 2.5V
V
OUT
= 5V
V
OUT
= 3.3V
100
1
100
1000
V
IN
= 4.2V
V
IN
= 3.3V
V
IN
= 2.5V
EFFICIENCY vs. LOAD CURRENT
V
OUT
= 5V
70
65
75
80
85
90
95
MAX8569 toc01
LOAD CURRENT (mA)
EFFICIENCY (%)
10
1
100
1000
EFFICIENCY vs. LOAD CURRENT
V
OUT
= 3.3V
70
65
75
80
85
90
95
MAX8569 toc02
LOAD CURRENT (mA)
EFFICIENCY (%)
10
V
IN
= 2V
V
IN
= 1.5V
V
IN
= 2.5V
10
1k
10k
STARTUP VOLTAGE vs. LOAD RESISTANCE
MAX8569 toc05
R
LOAD
(
Ω)
STARTUP VOLTAGE (V)
100
1.34
1.20
1.22
1.24
1.26
1.28
1.32
1.30
100
60
1
100
1000
EFFICIENCY vs. LOAD CURRENT
V
OUT
= 2.5V
70
65
75
80
85
90
95
MAX8569 toc03
LOAD CURRENT (mA)
EFFICIENCY (%)
10
V
IN
= 2V
V
IN
= 1.5V