MAX866 查看數據表（PDF） - Maxim Integrated
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MAX866 Datasheet PDF : 12 Pages
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3.3V/5V or Adjustable-Output,
Single-Cell DC-DC Converters
____________________________Typical Operating Characteristics (continued)
(Circuits of Figure 2, TA = +25°C, unless otherwise noted.)
START-UP INPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 3.3V)
1.5
1.4
1.3
47µH
1.2
100µH
1.1
1.0
0.9
0.8
0.7
220µH
330µH
0.6 1mH
0.5
0.1
1
10
100
LOAD CURRENT (mA)
START-UP INPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 5V)
1.5
1.4
1.3
1.2
47µH
1.1
1.0
0.9
0.8
100µH
0.7
330µH 220µH
0.6
0.5
0.1
1
10
100
LOAD CURRENT (mA)
INPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 3.3V)
3.0
100µH
47µH
2.5
1mH
330µH
2.0
1.5
22µH
1.0
0.5
0
1
10
100
LOAD CURRENT (mA)
1000
INPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 5V)
3.0
2.5
100µH
2.0
330µH
1.5
47µH
1.0
22µH
0.5
0
1
10
100
LOAD CURRENT (mA)
1000
MAX866 LINE-TRANSIENT RESPONSE
(3.3V MODE)
10
9
8
7
6
5
4
3
2
1
0
0
REFERENCE VOLTAGE
vs. REFERENCE CURRENT
50 100 150 200 250
REFERENCE LOAD CURRENT (µA)
MAX866 LINE-TRANSIENT RESPONSE
(5V MODE)
A
A
B
B
1ms/div
A: 3.3V OUTPUT VOLTAGE, AC COUPLED 20mV/div
B: INPUT VOLTAGE (0.9V AND 1.4V) 500mV/div
ILOAD = 10mA, COUT = 47µF
1ms/div
A: 5.0V OUTPUT VOLTAGE, AC COUPLED 20mV/div
B: INPUT VOLTAGE (0.9V AND 1.4V) 500mV/div
ILOAD = 10mA, COUT = 47µF
4 _______________________________________________________________________________________
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