
MAX16023/MAX16024
Battery-Backup Circuits with
Regulated Output Voltage
_______________________________________________________________________________________ 5
V
CC
SUPPLY CURRENT
vs. V
CC
SUPPLY VOLTAGE
MAX16023 toc01
V
CC
SUPPLY VOLTAGE (V)
V
CC
SUPPLY CURRENT (μA)
3.02.5 4.52.0 3.5 5.04.0
5
10
15
20
25
0
1.5 5.5
MAX16024PTBS25+
V
OUT
= 2.5V
V
TH
= 2.93V
V
CC
SUPPLY CURRENT
vs. TEMPERATURE
MAX16023 toc02
TEMPERATURE (°C)
V
CC
SUPPLY CURRENT (μA)
6010 35-15
2
4
6
8
10
1
3
5
7
9
0
-40 85
MAX16024PTBS25+
V
OUT
= 2.5V
V
TH
= 2.93V
BATT SUPPLY CURRENT
vs. V
CC
SUPPLY VOLTAGE
MAX16023 toc03
V
CC
SUPPLY VOLTAGE (V)
BATT SUPPLY CURRENT (μA)
1.0 3.00.5 2.52.01.5
2
4
6
1
3
5
0
0 3.5
MAX16024PTBS25+
V
OUT
= 2.5V
V
TH
= 2.93V
V
BATT
= 3.0V
V
BATT
= 2.8V
BATTERY SUPPLY CURRENT
vs. TEMPERATURE
MAX16023 toc04
TEMPERATURE (°C)
BATTERY SUPPLY CURRENT (μA)
6010 35-15
1
2
3
4
5
0
-40 85
MAX16024PTBS25+
V
BATT
= +3.0V
V
CC
= 0
BATT STANDBY CURRENT
vs. TEMPERATURE
MAX16023 toc05
TEMPERATURE (°C)
BATT STANDBY CURRENT (nA)
6010 35-15
-6
-2
2
6
10
-8
-4
0
4
8
-10
-40 85
V
CC
= 3.3V
V
BATT
= 3.0V
RESET OUTPUT VOLTAGE LOW
vs. SINK CURRENT
MAX16023 toc06
SINK CURRENT (mA)
OUTPUT VOLTAGE LOW (V)
168124
0.2
0.4
0.6
0.8
1.0
0
02014610218
MAX16024PTBS25+
Typical Operating Characteristics
(V
CC
= 5V, V
BATT
= 0, I
OUT
= 0, T
A
= +25°C, unless otherwise noted.)
Table 1. Reset Threshold Ranges Table 2. Fixed Output Voltage
RESET THRESHOLD RANGES (V)
SUFFIX
MIN TYP MAX
L 4.508 4.63 4.906
M 4.264 4.38 4.635
T 2.991 3.08 3.239
S 2.845 2.93 3.080
R 2.549 2.63 2.755
Z 2.243 2.32 2.425
Y 2.117 2.19 2.288
W 1.603 1.67 1.733
V 1.514 1.575 1.639
SUFFIX
NOMINAL OUTPUT
VOLTAGE (V)
33 3.3
30 3.0
25 2.5
18 1.8
12 1.2
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