MAX1776 查看數據表（PDF） - Maxim Integrated
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MAX1776 Datasheet PDF : 13 Pages
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24V, 600mA Internal Switch, 100% Duty Cycle,
Step-Down Converter
Typical Operating Characteristics (continued)
(Circuit of Figure 1, components from Table 3, VIN = +12V, SHDN = IN, TA = +25°C.)
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
18.0
17.5
17.0
16.5
16.0
15.5
15.0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
PEAK SWITCH CURRENT
vs. INPUT VOLTAGE, CIRCUIT 3, 0.3A
0.8
0.7
L = 10µH
0.6
L = 22µH
0.5
0.4
L = 47µH
0.3
L = 100µH
0.2
0.1
0
0
5
10
15
20
25
VIN (V)
14.20
14.15
14.10
14.05
14.00
13.95
13.90
13.85
13.80
13.75
13.70
5
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
7 9 11 13 15 17 19 21 23 25
SUPPLY VOLTAGE (V)
LOAD-TRANSIENT RESPONSE,
CIRCUIT 5
MAX1776 toc19
IL
VLX
VOUT
ILOAD
1A
0
10V
0
AC COUPLED
50mV/div
500mA
10mA
10µs/div
LINE-TRANSIENT RESPONSE,
CIRCUIT 5, ILOAD = 500mA
MAX1776 toc20
AC-COUPLED VOUT
VOUT
200mv/div
LINE-TRANSIENT RESPONSE,
CIRCUIT 5, ILOAD = 50mA
MAX1776 toc21
AC-COUPLED
200mv/div
VIN
VLX
200µs/div
15V
VIN
10V
10V
5V
10V
5V
VLX
5V
0
0
200µs/div
6 _______________________________________________________________________________________
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