参数资料
型号: DS2282
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Digital Transmission Controller
英文描述: DATACOM, FRAMER, SMA30
文件页数: 14/16页
文件大小: 312K
代理商: DS2282
MAX774/MAX775/MAX776
-5V/-12V/-15V or Adjustable, High-Efficiency,
Low IQ Inverting DC-to-DC Controllers
_______________________________________________________________________________________
7
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
CIRCUIT OF FIGURE 2
V+ = 6.5V, ILOAD = 1A, VOUT = -5V
A: OUTPUT RIPPLE, 200mV/div
B: EXT WAVEFORM, 10V/div
C: INDUCTOR CURRENT, 2A/div
OPERATING WAVEFORMS
10
s/div
A
B
C
CIRCUIT OF FIGURE 2
VOUT = -5V, V+ = 4.7V
ILOAD = 1.05A (1A/div)
INDUCTOR CURRENT NEAR FULL LOAD
20
s/div
1A/div
0A
CIRCUIT OF FIGURE 2
ILOAD = 300mA, VOUT = -5V
V+ = 8V, L = 22
H
CONTINUOUS CONDUCTION
AT ONE-HALF CURRENT LIMIT
20
s/div
1A/div
0A
CIRCUIT OF FIGURE 2
V+ = 6V, ILOAD = 1A, VOUT = -5V
A: SHUTDOWN PULSE, 0V TO V+, 5V/div
B: VOUT, 2V/div
ENTRY/EXIT FROM SHUTDOWN
2ms/div
A
B
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