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参数资料
| 型号： | GM3255S8T |
| 厂商： | American Power Management Inc. |
| 元件分类： | DC/DC变换器 |
| 英文描述： | 1.5A 280kHz DC-DC CONVERTOR BOOST REGULATOR |
| 中文描述： | 1.5A的为280kHz的DC - DC转换器升压稳压器 |
| 文件页数： | 14/19页 |
| 文件大小： | 234K |
| 代理商： | GM3255S8T |
ELECTRICAL CHARACTERISTICS
(2.7 V < V
< 30 V; Industrial Grade: 0°C < T < 70°C; Commercial Grade: 0°C < T < 125°C; unless otherwise noted)
CC
J
CHARACTERISTICS
TEST CONDITIONS
MIN
TYP
MAX
UNIT
FB Reference Voltage
FB Input Current
FB Reference Voltage Line
Regulation
Error Amp
Transconductance
Error Amp Gain
Negative
V Source Current
C
V Sink Current
C
V High Clamp Voltage
C
V
Low Clamp Voltage
C
Base Operating Frequency
Reduced Operating Frequency
Maximum Duty Cycle
FB Frequency Shift Threshold
Sync Range
Sync Pulse Transition
Threshold
SS Bias Current
Shutdown Threshold
Shutdown Delay
Error Amplifier Section
Oscillator Section
Sync/ Shutdown Section
Sync Range
Shutdown Threshold
V tied to FB; measure at FB
C
FB = V
REF
V = FB
C
I
= ±25 A
VC
(Note 2)
FB = 1.0V, V =1.25V
C
FB = 1.5V, V = 1.25V
C
FB = 1.0V; V sources 25A
C
FB = 1.5V, V sinks 25A
C
Reduce V from 1.5V until switching
C
stops
FB = 1.0V
FB = 0V
-
Frequency drops to reduced
operating frequency
Rise time = 20ns
SS = 0V
SS = 3.0V
-
2.7 V
V
12V
CC
12 V < V
30V
CC
1.246
-1.0
-
300
200
100
25
200
1.5
0.25
0.75
230
30
90
0.36
320
2.5
-15
-
0.5
12
1.276
0.1
0.01
550
500
180
50
625
1.7
0.50
1.05
280
52
94
0.40
-
-3.0
3.0
0.85
80
36
V
A
% / V
Mho
V / V
A
V
kHz
%
V
kHz
V
A
s
1.300
1.0
0.03
800
-
320
90
1500
1.9
0.65
1.30
310
120
-
0.44
500
-
8.0
350
200
1.2
V Threshold
C
(Note 1) The maximum package power dissipation must be observed.
(Note 2) Guaranteed by design, not 100% tested in production.
-
G
M
3
2
5
4
s
Power Management
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