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参数资料
| 型号： | MAX1708 |
| 厂商： | Maxim Integrated Products, Inc. |
| 元件分类： | DC/DC变换器 |
| 英文描述： | High-Frequency, High-Power, Low-Noise, Step-Up DC-DC Converter |
| 中文描述： | 高频、大功率、低噪声、升压型DC-DC转换器 |
| 文件页数： | 3/13页 |
| 文件大小： | 332K |
| 代理商： | MAX1708 |
M
High-Frequency, High-Power, Low-Noise,
Step-Up DC-DC Converter
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
OUT
= V
CLK
= +3.6V, ONA =
ONB
= FB = GND,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
ELECTRICAL CHARACTERISTICS
(V
OUT
= V
CLK
= +3.6V, ONA =
ONB
= FB = GND,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 9)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ONA,
ONB
,
3.3
/5, 1.2V < V
OUT
<5.5V
CLK, 2.7 V< V
OUT
< 5.5V
ONA,
ONB
, CLK,
3.3
/5 = 0, 5.5V
0.8
V
OUT
0.8
V
OUT
-1
520
82
Input High Level
V
Logic Input Current
Internal Oscillator Frequency
Maximum Duty Cycle
External Clock Frequency
Range
CLK Pulse Width
CLK Rise/Fall Time
1
μA
kHz
%
600
88
680
94
350
1000
kHz
(Note 8)
(Note 8)
100
ns
ns
50
PARAMETER
CONDITIONS
MIN
3.24
4.90
1.20
MAX
3.45
5.22
1.28
200
-0.60
5.2
UNITS
3.3
/5 = GND, I
SW
= 0.5A
3.3
/5 = OUT, I
SW
= 0.5A
Output Voltage
V
FB
< 0.1V, V
IN
= +2.4V
(Note 1)
V
FB Regulation Voltage
FB Input Current (V
FB
)
Load Regulation
Soft-Start Pin Current
I
SW
= 0.5A
V
FB
= +1.5V
Measured between 0.5A < I
SW
< 1.5A (Note 2)
SS/LIM = 1V
V
nA
%/A
μA
3.2
OUT Leakage Current in
Shutdown
V
ONB
= 3.6V
2
μA
OUT Supply Current
V
FB
= 1.5V (Note 6)
300
μA
N-Channel Switch
On-Resistance
80
m
SS/LIM = open
SS/LIM = 150k
to GND
I
REF
= 0
4.5
1.8
1.24
7.5
4.0
1.28
N-Channel Current Limit
A
Reference Voltage
V
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