參數(shù)資料
型號(hào): MAX861
廠商: Maxim Integrated Products, Inc.
英文描述: 50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters(50mA,高達(dá)250KHz的振蕩頻率,電荷泵電壓轉(zhuǎn)換器)
中文描述: 50mA、頻率可選的開(kāi)關(guān)電容電壓變換器
文件頁(yè)數(shù): 4/12頁(yè)
文件大?。?/td> 116K
代理商: MAX861
M
50mA, Frequenc y-S elec table,
S witc hed-Capac itor Voltage Converters
4
_______________________________________________________________________________________
__________________________________________Typic al Operating Charac teristic s
(All curves generated using the inverter circuit shown in the Typical Operating Circuits with LV = GND and T
A
= +25°C, unless other-
wise noted. Test results also valid for doubler mode with LV = OUT and T
A
= +25°C, unless otherwise noted. All capacitor values
used are those recommended in Table 3. All capacitors are low-ESR Sanyo OS-CONs. The output resistance curves represent the
resistance of the device itself, which is R
O
in the equation for R
OUT
shown in the Capacitor Selection section.)
0.7
0
0
OUTPUT VOLTAGE DROP FROM
SUPPLY VOLTAGE vs. LOAD CURRENT
0.8
M
LOAD CURRENT (mA)
V
O
30
0.4
0.2
10
20
50
0.6
40
0.1
0.3
0.5
V
DD
= +1.5V
V
DD
= +2.5V
V
DD
= +3.5V
V
DD
= +4.5V, +5.0V
V
DD
= +5.5V
ALL FREQUENCIES
2
-14
1.5 2.0
3.0
4.0
OSCILLATOR FREQUENCY vs.
SUPPLY VOLTAGE
-6
0
M
SUPPLY VOLTAGE (V)
P
%
)
(
D
2.5
3.5
-2
-4
4.5 5.0 5.5
-8
-10
-12
ALL FREQUENCIES,
LV FLOATING (V
> 3V),
OR LV CONNECTED TO GND
(INVERTER) OR OUT (DOUBLER)
1.0
20
0
0
1
3
5
OUTPUT SOURCE RESISTANCE (R
O
) vs.
SUPPLY VOLTAGE
4
16
M
SUPPLY VOLTAGE (V)
O
)
2
4
12
8
2
6
10
14
18
ALL FREQUENCIES
32
0
-60
-20
40
140
OUTPUT SOURCE RESISTANCE (R
O
) vs.
TEMPERATURE
8
28
M
TEMPERATURE (°C)
O
)
20
100
24
16
-40
0
60 80
120
20
12
4
V
DD
= +3V
V
DD
= +5V
V
DD
= +1.5V
ALL FREQUENCIES
0
0
MAX861 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
S
μ
A
100
200
300
500
1
2
3
4
5
6
400
DOUBLER, LV = OUT
INVERTER, LV = GND
OR LV = FLOAT (V
DD
> 3V)
FC = V
DD
100
0
0.01
1
100
MAX860
EFFICIENCY vs. LOAD CURRENT
20
M
LOAD CURRENT (mA)
E
40
60
80
10
30
50
70
90
0.1
10
INVERTER
FC = V
DD
V
DD
= 1.5V
V
DD
= 3V
V
DD
= 5V
0
0
MAX860 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
S
μ
A
100
200
300
500
1
2
3
4
5
6
400
DOUBLER, LV = OUT
INVERTER, LV = GND
OR LV = FLOAT (V
DD
> 3V)
FC = V
DD
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