MAX769 データシートの表示（PDF） - Maxim Integrated
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MAX769 Datasheet PDF : 16 Pages
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2 or 3-Cell, Step-Up/Down,
Two-Way Pager System IC
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
NO-LOAD BATTERY CURRENT
vs. BATTERY VOLTAGE
100
VOUT = 3.0V
COAST MODE
10
1
2
3
4
5
6
BATTERY VOLTAGE (V)
MAXIMUM LOAD CURRENT
vs. BATTERY VOLTAGE
160
VOUT = 3.0V
140
120
RUN MODE
100
80
60
COAST MODE
40
20
0
1
2
3
4
5
6
BATTERY VOLTAGE (V)
START-UP BATTERY VOLTAGE
vs. LOAD CURRENT
6
VOUT = 3.0V
COAST MODE
5
4
3
2
1
1
10
100
LOAD CURRENT (mA)
NICD CHARGING CURRENT vs.
NICD VOLTAGE
25
DR1 OR DR2 ON-RESISTANCE vs. VOUT
3
20
2
15
10
5
15mA MODE
VOUT = 4.9V
0
0
1
2
3
4
5
6
NICD VOLTAGE (V)
LX NOISE SPECTRUM
(RUN MODE, SYNC OPERATION)
20
1
0
0
1
2
3
4
5
VOUT VOLTAGE (V)
REG2 NOISE SPECTRUM
(RUN MODE)
100
0
80
-20
60
-40
40
-60
20
-80
100 200 300 400 500 600
FREQUENCY (kHz)
0
0.1
1
10 100 1000 10,000
FREQUENCY (kHz)
6 _______________________________________________________________________________________
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