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參數(shù)資料
| 型號： | MAX687 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Accuracy, Low-Dropout Linear Regulators(3V,用于便攜電話的,高精度線性穩(wěn)壓控制器) |
| 中文描述： | 高精度、低壓差線性穩(wěn)壓器 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 128K |
| 代理商： | MAX687 |
M
High-Ac c urac y, Low-Dropout
Linear Regulators
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage IN to GND ............................................12V
Terminal Voltages to GND
PFO (MAX687)........................................-0.3V to V
OUT
+ 0.3V
PFO (MAX688/MAX689) ......................................-0.3V to 12V
All Remaining Pins .....................................-0.3V to V
IN
+ 0.3V
PFO Sink Current ...............................................................10mA
PFO Source Current (MAX687)...........................................10mA
ELECTRICAL CHARACTERISTICS
(V
IN
= 3.8V, SHDN = V
IN
(MAX688/MAX689), R
B
= 0
, C1 = 2.2μF, C2 = 10μF, C3 = 10nF, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25°C.)
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.
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C).........................471mW
μMAX (derate 4.1mW/°C above +70°C) ......................330mW
Operating Temperature Ranges
MAX68_C_A .......................................................0°C to +70°C
MAX68_E_A ....................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
MAX687/MAX688
(Note 1)
V
BASE
= V
IN
- 1V
PNP = FZT749, I
LOAD
= 100mA (Note 4)
V
IN
= 3.8V,
PNP = FZT749,
no load
(Note 3)
1μA
≤
I
BASE
≤
10mA
R
B
is connected from BASE to BLIM (
),
R
B
= 0
to 100
CONDITIONS
μF
10
C2
Load Capacitance
%
2
Start-Up Overshoot
μs
300
Start-Up Time
mA
70
100
130
R
B
+ 5
R
B
+ 5
R
B
+ 5
Base-Current Limit
V
3.2
3.3
3.4
V
OUT
Output Voltage
V
2.7
11.0
V
IN
Supply Voltage
mA
10
20
40
I
BASE
BASE Sink Current
< 0.02
1
11
25
μA
150
250
I
GND
Supply Current
3.13
3.3
3.47
mV
40
V
IN
- V
OUT
Dropout Voltage (Note 2)
mV/V
0.4
1.4
Line Regulation
mV
45
60
Load Regulation
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
IN
= 3.8V, I
BASE
= 1mA
3.8V
≤
V
IN
≤
11.0V,
1μA
≤
I
BASE
≤
10mA
V
IN
= 3.5V, I
BASE
= 1mA
3.5V
≤
V
IN
≤
11.0V,
1μA
≤
I
BASE
≤
10mA
PNP = FZT749, I
LOAD
= 200mA, C2 = 20μF
3.8V
≤
V
IN
≤
11.0V,
I
BASE
= 1mA
MAX687/MAX688
MAX689
2.9
3.0
3.1
2.85
3.0
3.15
MAX689
3.5V
≤
V
IN
≤
11.0V,
I
BASE
= 1mA
0.4
1.4
On
Standby,
MAX688/MAX689
Shutdown
LINEAR REGULATOR
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