MAX4837

Manufacturer Part NumberMAX4837
DescriptionThe MAX4836/MAX4837 family of low-dropout linear regulators (LDOs) feature an accurate current-limiting switch with an integrated active-low FLAG or active-low RESET function
ManufacturerMaxim
MAX4837 datasheets

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500mA LDO Linear Regulators with
Current-Limiting Switch
+ 1V, SHDN = IN, C
(V
= V
= 3.3µF, T
IN
OUT
OUT
FLAG RESPONSE WHEN OUT IS
SHORTED TO GND < BLANKING TIME
MAX4836 toc17
V
OUT
2V/div
I
OUT
200mA/div
V
FLAG
5V/div
1ms/div
STARTUP IN AN OVERLOAD CONDITION
(C
NOT CONNECTED)
SS
MAX4836 toc20
V
IN
2V/div
V
OUT
t
BLANK
2V/div
t
SS
V
FLAG
2V/div
V
SS
1V/div
2ms/div
V
= 2.5V
OUT
I
= I
MAXIMUM
LOAD
LIMIT
FLAG CONNECTED TO LOGIC SUPPLY
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
= +25°C, unless otherwise noted.)
A
FLAG RESPONSE WHEN OUT IS
SHORTED TO GND > BLANKING TIME
(IN IS TOGGLED)
MAX4836 toc18
V
OUT
1V/div
t
BLANK
V
FLAG
2V/div
V
IN
2V/div
FLAG CONNECTED TO LOGIC SUPPLY
10ms/div
STARTUP IN AN OVERLOAD CONDITION
(C
= 0.01µF)
SS
MAX4836 toc21
V
IN
2V/div
V
OUT
t
BLANK
2V/div
t
SS
V
FLAG
2V/div
V
SS
1V/div
4ms/div
V
= 2.5V
OUT
I
= I
MAXIMUM
LOAD
LIMIT
FLAG CONNECTED TO LOGIC SUPPLY
FLAG RESPONSE WHEN OUT IS
SHORTED TO GND > BLANKING TIME
(SHDN IS TOGGLED)
MAX4836 toc19
V
1V/div
V
t
BLANK
2V/div
V
2V/div
FLAG CONNECTED TO LOGIC SUPPLY
10ms/div
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
1.004
NORMALIZED TO +25°C
1.002
I
= 500mA
LOAD
1.000
I
= 100mA
LOAD
0.998
I
= 300mA
LOAD
0.996
0.994
-40
-15
10
35
60
85
TEMPERATURE (°C)
OUT
FLAG
SHDN

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