Datasheet

MAX1852/MAX1853
SC70 Inverting Charge Pumps
with Shutdown
_______________________________________________________________________________________ 3
12
14
16
18
20
22
24
26
28
-40 -15 10 35 60 85
MAX1853
OUTPUT RESISTANCE vs. TEMPERATURE
MAX1852/3 toc09
TEMPERATURE (°C)
OUTPUT RESISTANCE (Ω)
V
IN
= +3.3V
V
IN
= +5V
V
IN
= +2.5V
12
14
16
18
20
22
24
26
28
-40 -15 10 35 60 85
MAX1852
OUTPUT RESISTANCE vs. TEMPERATURE
MAX1852/3 toc08
TEMPERATURE (°C)
OUTPUT RESISTANCE (Ω)
V
IN
= +2.5V
V
IN
= +5V
V
IN
= +3.3V
0
1
2
3
4
5
6
7
8
-40 -15 10 35 60 85
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX1852/3 toc07
TEMPERATURE (°C)
SUPPLY CURRENT (nA)
-5.5
-4.5
-5.0
-3.5
-4.0
-2.5
-3.0
-2.0
010155 202530
MAX1852
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX1852/3 toc01
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
V
IN
= +3.3V
V
IN
= +5V
0
30
20
10
40
50
60
70
80
90
100
0105 15202530
MAX1853
EFFICIENCY vs. LOAD CURRENT
MAX1852/3 toc04
LOAD CURRENT (mA)
EFFICIENCY (%)
V
IN
= +3.3V
V
IN
= +2.5V
V
IN
= +5V
-5.5
-4.5
-5.0
-3.5
-4.0
-2.5
-3.0
-2.0
010155 202530
MAX1853
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX1852/3 toc02
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
V
IN
= +3.3V
V
IN
= +5V
0
30
20
10
40
50
60
70
80
90
100
0105 15202530
MAX1852
EFFICIENCY vs. LOAD CURRENT
MAX1852/3 toc03
LOAD CURRENT (mA)
EFFICIENCY (%)
V
IN
= +5V
V
IN
= +2.5V
V
IN
= +3.3V
13
16
15
14
17
18
19
20
21
22
23
2.5 3.53.0 4.0 4.5 5.0 5.5
OUTPUT RESISTANCE vs. INPUT VOLTAGE
MAX1852/3 toc05
INPUT VOLTAGE (V)
OUTPUT RESISTANCE (Ω)
MAX1852
MAX1853
0
40
20
100
80
60
120
140
180
160
200
012345
NO-LOAD SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1852/3 toc06
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
MAX1853
MAX1852
Typical Operating Characteristics
(Circuit of Figure 1, capacitors from Table 2, V
IN
= +5V, SHDN = IN, T
A
= +25°C, unless otherwise noted.)