Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°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.
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT
+ 0.5V, T
A
= -40°C to +85°C, unless otherwise noted. C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 10nF. Typical values are at +25°C;
the MAX8842 is tested with 2.45V output, unless otherwise noted.) (Note 1)
PARAMETER
Input Voltage Range
Output Voltage Accuracy
Maximum Output Current
Current Limit
I
OUT
I
LIM
OUT = 90% of nominal value
V
OUT
≥
3V, I
OUT
= 80mA
V
OUT
≥
3V, I
OUT
= 120mA
Dropout Voltage (Note 2)
2.5V
≤
V
OUT
< 3V, I
OUT
= 80mA
2.5V
≤
V
OUT
< 3V, I
OUT
= 120mA
2V
≤
V
OUT
< 2.5V, I
OUT
= 80mA
2V
≤
V
OUT
< 2.5V, I
OUT
= 120mA
Ground Current
Line Regulation
Load Regulation
Shutdown Supply Current
I
Q
V
LNR
V
LDR
I
SHDN
I
OUT
= 0.05mA
V
IN
= V
OUT(nom)
- 0.1V, I
OUT
= 0mA
V
IN
= (V
OUT
+ 0.5V) to 6V, I
OUT
= 0.1mA
I
OUT
= 1mA to 80mA
SHDN
= 0V
f = 1kHz, I
OUT
= 10mA
Ripple Rejection
PSRR
f = 10kHz, I
OUT
= 10mA
f = 100kHz, I
OUT
= 10mA
T
A
= +25°C
T
A
= +85°C
MAX8840
MAX8841/MAX8842
MAX8840
MAX8841/MAX8842
MAX8840
MAX8841/ MAX8842
SYMBOL
V
IN
I
OUT
= 1mA, T
A
= +25°C
I
OUT
= 100µA to 80mA, T
A
= +25°C
I
OUT
= 100µA to 80mA
CONDITIONS
MIN
2
-1
-2
-3
150
150
200
80
120
90
135
120
180
40
220
0.001
0.003
0.003
0.05
78
72
75
65
54
46
dB
1
90
500
µA
%/V
%/mA
µA
250
200
mV
300
170
TYP
MAX
6
+1
+2
+3
mA
mA
%
UNITS
V
2
Maxim Integrated
MAX8840/MAX8841/MAX8842
Ultra-Low-Noise, High PSRR, Low-Dropout,
150mA Linear Regulators in µDFN
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
OUT
+ 0.5V, T
A
= -40°C to +85°C, unless otherwise noted. C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 10nF. Typical values are at +25°C;
the MAX8842 is tested with 2.45V output, unless otherwise noted.) (Note 1)
PARAMETER
Output Noise Voltage
(RMS)
Shutdown Exit Delay
SHDN
Logic-Low Level
SHDN
Logic-High Level
SHDN
Input Bias Current
FB Input Bias Current
(MAX8842)
Thermal Shutdown
Thermal-Shutdown
Hysteresis
SYMBOL
CONDITIONS
f = 100Hz to 100kHz,
I
LOAD
= 10mA
f = 100Hz to 100kHz,
I
LOAD
= 80mA
R
LOAD
= 50Ω (Note 3)
V
IN
= 2V to 6V
V
IN
= 2V to 6V
V
IN
= 6V,
SHDN
= 0V or
6V
V
IN
= 6V, V
FB
= 1.3V
T
A
= +25°C
T
A
= +85°C
T
A
= +25°C
T
A
= +85°C
0.01
0.006
0.01
160
10
0.1
1.5
MAX8840
MAX8841/MAX8842
MAX8840
MAX8841/MAX8842
MIN
TYP
11
230
13
230
300
0.4
µs
V
V
µA
µA
°C
°C
µV
MAX
UNITS
Note 1:
Limits are 100% tested at +25°C. Limits over operating temperature range are guaranteed by design.
京公网安备 11010802033920号
EEWORLD
