參數(shù)資料
型號(hào)： MAX8881
廠商： Maxim Integrated Products, Inc.
英文描述： 12V, Ultra-Low-IQ, Low-Dropout Linear Regulators with POK
中文描述： 12V、超低IQ、低壓差線性穩(wěn)壓器，帶有POK
文件頁(yè)數(shù)： 2/8頁(yè)
文件大小： 228K
代理商： MAX8881
M
12V, Ultra-Low-I
Q
, Low-Dropout
Linear Regulators with POK
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN to GND................................................................-14V to +14V
SHDN
to GND.............................................-0.3V to (V
IN
+ 0.3V),
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT
+ 1V,
SHDN
= IN, C
OUT
= 4.7μF, T
A
= -40
°
C to +85
°
C, unless otherwise noted. Typical values are at T
A
= +25
°
C.) (Note 1)
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.
-0.3V to +0.3V when V
IN
< 0V
OUT, FB to GND...............................-0.3V to +6V when V
IN
> 5.7V,
-0.3V to (V
IN
+ 0.3V) when 0V
≤
V
IN
≤
5.7V,
-0.3V to +0.3V when V
IN
< 0V
POK to GND...........................................................-0.3V to +14V
OUT Continuous Current...................................................200mA
OUT Short Circuit...........................................................Indefinite
Continuous Power Dissipation (T
A
= +70
°
C)
6-Pin SOT23 (derate 8.7mW/
°
C above +70
°
C)...........696mW
Operating Temperature Range ...........................-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature.........................................-65
°
C to +165
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
PARAMETER
SYMBOL
V
IN
I
IN
I
IN(
SHDN
)
V
UVLO
CONDITIONS
MIN
2.5
TYP
MAX
12
10
3
2.4
1.276
1.282
1.295
1.5
2
3
5.5
0.05
0.015
UNITS
V
μ
A
μ
A
V
Input Voltage Range
Supply Current
Shutdown Supply Current
Input Undervoltage Lockout
V
IN
= 12V
V
SHDN
= 0, V
IN
= 12V, V
OUT
= 0, T
A
= +25
°
C
3.5
1.5
2.1
1.257
T
A
= +25
°
C
T
A
= 0
°
C to +85
°
C
T
A
= -40
°
C to +85
°
C
T
A
= +25
°
C
T
A
= 0
°
C to +85
°
C
T
A
= -40
°
C to +85
°
C
1.238
1.232
1.219
-1.5
-2
-3
1.25
FB Voltage, Adjustable
Mode
V
FB
MAX8880,
I
OUT
= 20mA
V
OUT Voltage Accuracy
(Note 2)
MAX8881,
I
OUT
= 20mA
%
OUT Voltage Range
OUT Line Regulation
OUT Load Regulation (Note 3)
Current Limit (Note 3)
Dropout Voltage (Notes 3, 4)
IN Reverse Leakage Current
Foldback Current Limit
V
OUT
MAX8880
V
IN
= V
OUT
+ 1V to 12V
I
OUT
= 10
μ
A to 100mA
V
0.01
0.006
400
100
%/V
%/mA
mA
mV
mA
mA
I
OUT
V
DO
I
IN(REV)
I
OUT(SC)
V
IH
V
IL
200
I
OUT
= 50mA
V
IN
= -12V, V
SHDN
= 0
V
IN
= 5V, V
OUT
= 0
200
1
250
2
SHDN Input Threshold
V
IN
= 2.5V to 12V
0.5
100
20
93.5
95
V
SHDN Input Bias Current
FB Input Bias Current
V
SHDN
= 0 to 12V, T
A
= +25
°
C
FB = 1.25V, T
A
= +25
°
C, MAX8880 only
Falling
-100
0
87.5
86
nA
nA
I
FB
2
T
A
= +25
°
C
T
A
= -40
°
C to +85
°
C
90.5
POK Trip Threshold
Hysteresis
V
POK
= 12V, T
A
= +25
°
C
I
POK
= 1mA
1.5
% of
V
OUT
POK Off-Current
POK Low Voltage
I
POK
V
POK
100
200
nA
mV
50
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