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参数资料
| 型号： | MAX1709 |
| 厂商： | Maxim Integrated Products, Inc. |
| 元件分类： | DC/DC变换器 |
| 英文描述： | 4A, Low-Noise, High-Frequency, Step-Up DC-DC Converter |
| 中文描述： | 4A、低噪声、高频、升压型DC-DC转换器 |
| 文件页数： | 3/12页 |
| 文件大小： | 502K |
| 代理商： | MAX1709 |
M
4A, Low-Noise, High-Frequency,
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
x
TYP
MAX
UNITS
ONA,
ONB
, 3.3/5, 1.2V < V
OUT
< 5.5
CLK, 2.7 V< V
OUT
< 5.5V
ONA,
ONB
, CLK, 3.3/5
0.8
0.8
x
V
OUT
V
OUT
Input High Level
V
Logic Input Current
1
μ
A
kHz
Internal Oscillator Frequency
520
600
680
Maximum Duty Cycle
External Clock Frequency
Range
CLK Pulse Width
82
90
94
%
350
1000
kHz
(Note 8)
100
ns
CLK Rise/Fall Time
(Note 8)
50
ns
PARAMETER
CONDITIONS
MIN
3.24
4.9
1.21
TYP
MAX
3.45
5.2
1.27
200
-0.45
5.2
UNITS
V
FB
< 0.1V, V
IN
= +2.4V
(Note 1)
I
SW
= 1A
V
FB
= +1.5V
Measured between 1A < I
SW
< 5A (Note 2)
SS/LIM = 1V
3.3/5 = GND, I
SW
= 1A
3.3/5 = OUT, I
SW
= 1A
Output Voltage
V
FB Regulation Voltage
FB Input Current
Load Regulation
Soft-Start Pin Current
V
nA
%/A
μ
A
3.2
OUT Leakage Current in
Shutdown
V
ONB
= 3.6V
5
μ
A
OUT Supply Current
V
FB
= 1.5V (Note 6)
400
μ
A
N-Channel Switch
On-Resistance
40
m
SS/LIM = unconnected
SS/LIM = 150k
to GND
I
REF
= 0
7.5
3.5
1.24
15
7
1.28
N-Channel Current Limit
V
Reference Voltage
V
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