User guide

MAX1686/MAX1686H
3V to 5V Regulating
Charge Pumps for SIM Cards
_______________________________________________________________________________________
3
0
0.1 100101
EFFICIENCY vs. LOAD CURRENT
(5V MODE)
30
10
70
50
90
40
20
80
60
MAX1686-01
LOAD CURRENT (mA)
EFFICIENCY (%)
V
IN
= 3.6V
V
IN
= 2 .7V
V
IN
= 3.3V
0
0
EFFICIENCY vs. INPUT VOLTAGE
(5V MODE)
MAX1686-TOC2
INPUT VOLTAGE (V)
EFFICIENCY (%)
10
20
30
40
50
60
70
80
90
123456
I
LOAD
= 10mA
I
LOAD
= 1mA
1000
0.1
02146
NO-LOAD INPUT CURRENT
vs. INPUT VOLTAGE (3V MODE)
1
10
100
MAX1686-03
INPUT VOLTAGE (V)
INPUT CURRENT (µA)
35
10,000
1
02146
NO-LOAD INPUT CURRENT
vs. INPUT VOLTAGE (5V MODE)
10
100
1000
MAX1686-04
INPUT VOLTAGE (V)
INPUT CURRENT (µA)
35
0
2
1
4
3
5
6
0231 456
OUTPUT VOLTAGE
vs. INPUT VOLTAGE (3V MODE)
MAX1686-07
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
NO LOAD
3.20
3.24
3.22
3.28
3.26
3.30
3.34
3.32
0 5 10 15 20 25
OUTPUT VOLTAGE
vs. LOAD CURRENT (3V MODE)
MAX1686-05
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
4.70
0.1 100101
MAX1686 OUTPUT VOLTAGE
vs. LOAD CURRENT (5V MODE)
4.73
4.71
4.77
4.75
4.80
4.74
4.72
4.78
4.79
4.76
MAX1686-06
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
V
IN
= 2.7V
V
IN
= 3 .3V
V
IN
= 3.6V
0
2
1
4
3
5
6
0231 456
OUTPUT VOLTAGE
vs. INPUT VOLTAGE (5V MODE)
MAX1686-08
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
NO LOAD
MAX1686
MAX1686H
2.5µs/div
OUTPUT WAVEFORM
(I
LOAD
= 10mA)
MAX1686-09
V
OUT
(20mV/div)
5V MODE, AC COUPLED,
C
OUT
= 10µF  0.1µF
Typical Operating Characteristics
(See
Typical Operating Circuit
, C
IN
= 0.47µF, C
X
= 0.22µF, C
OUT
= 10µF, V
IN
= 3.3V, T
A
= +25°C, unless otherwise noted.)