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參數(shù)資料
| 型號： | MAX881R |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Noise Bias Supply in レMAX with Power-OK for GaAsFET PA |
| 中文描述： | 低噪聲偏置電源、µMAX封裝，帶有電源就緒指示，用于GaAsFET PA |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 111K |
| 代理商： | MAX881R |
M
Low-Noise Bias S upply in μMAX
with Power-OK for GaAsFET PA
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN to GND.................................................................-0.3V to +6V
SHDN
to GND...........................................................-0.3V to +6V
POK
to GND ...........................................................-0.3V to +12V
C1+ to GND.................................................-0.3V to (V
IN
+ 0.3V)
C1-, NEGOUT, OUT, FB to GND ....................-6V to (V
IN
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
10-Pin μMAX (derate 5.6mW/°C above +70°C)...........444mW
Note 1:
The output may be shorted to NEGOUT or GND if the package power dissipation is not exceeded. Typical short-circuit
current is 35mA.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 3, V
IN
= +3.6V, FB = GND, R
L
=
∞
,
SHDN
= IN,
T
A
= -40°C to +85°C
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 2)
CONDITIONS
V
IN
Supply Voltage Range
Preset Output Voltage
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Operating Temperature Range ...........................-40°C to +85°C
J unction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
V
IN
= 3V, R
L
= 500
, V
SHDN
= 0 to V
IN
,
POK
goes low
V
IN
≥
2.5V, I
OUT
= 0 to 4mA
Connected to IN or GND
V
IN
= 2.5V
V
IN
≥
2.7V, I
OUT
= 0 to 4mA
V
IN
= 5.5V
V
POK
= 11V
I
OUT
= 4mA, circuit of Figure 3b
V
IN
≥
2.7V, I
OUT
= 0 to 4mA
V
IN
≥
2.5V, sinking 1mA
SHDN
= GND
V
FB
= -0.5V
FB = OUT
ms
1
t
START
Start-Up Time
pF
10
C
IN
SHDN
Input Capacitance
μA
±1
I
SHDN
SHDN
Input Current
V
0.35
V
IL
SHDN
Input Low Voltage
V
2.2
V
IH
SHDN
Input High Voltage
μA
1
POK
Off Leakage Current
mV
100
POK
Output Level
% of
V
OUT
90
92.5
95
POK
Threshold
kHz
80
100
120
f
OSC
Oscillator Frequency
V
-(V
IN
- 0.6)
-0.5
V
OUT
Adjustable Output Voltage
Range
V
-2.1
-2.0
-1.9
V
OUT
V
2.5
5.5
mVp-p
1
Output Ripple
mV/mA
2
6
Output Load Regulation
μA
0.05
1
I
SHUT
Shutdown Supply Current
V
-0.515
-0.525
-0.535
-0.5
-0.485
-0.475
-0.465
V
FB
FB Voltage
nA
μA
-10
500
-100
950
FB Input Current
Supply Current
I
Q
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
IN
≥
2.5V,
I
OUT
= 0 to 4mA
T
A
= +25°C
T
A
= 0°C to +85°C
T
A
= -40°C to +85°C
Note 2:
Specifications to -40°C are guaranteed by design, not production tested.
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