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MAX1935 Fiches technique(PDF) 2 Page - Maxim Integrated Products

No de pièce MAX1935
Description  500mA, Low-Voltage Linear Regulator in Tiny QFN
Download  10 Pages
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1935 Fiches technique(HTML) 2 Page - Maxim Integrated Products

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500mA, Low-Voltage Linear Regulator
in Tiny QFN
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = VOUT(SETPOINT) + 500mV or VIN = 2.25V whichever is greater, SET = GND, SHDN = IN, TA = 0°C to +85°C, unless otherwise
noted. Typical values are at TA = +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.
IN, SHDN, POK, SET to GND ...................................-0.3V to +6V
OUT to GND ................................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (TA = +70°C)
8-Pin Thin QFN (derate 24.4mW/°C above +70°C) .......1.95W
Operating Temperature .......................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage
VIN
2.25
5.50
V
Input Undervoltage Lockout
VUVLO
Rising, 40mV hysteresis
1.85
2
2.15
V
TA = +25
°C, IOUT = 100mA
-1.5
+1.5
TA = +25
°C, IOUT = 1mA to 500mA
-2.5
+2.5
Output Voltage Accuracy
(Preset Mode)
VOUT
TA = 0
°C to +85°C, IOUT = 1mA to 500mA,
VIN > VOUT + 0.5V
-3
+3
%
Adjustable Output Voltage
0.8
4.5
V
TA = +25
°C, IOUT = 100mA
788
812
TA = +25
°C, IOUT = 1mA to 500mA
780
820
SET Voltage Threshold
(Adjustable Mode)
VSET
TA = 0
°C to +85°C, IOUT = 1mA to 500mA,
VIN > VOUT + 0.5V
774
800
826
mV
Maximum Output Current
IOUT
500
mARMS
Short-Circuit Current Limit
ILIM
VOUT = 0V
600
1400
2300
mA
SET Dual ModeThreshold
35
80
125
mV
SET Input Bias Current
ISET
VSET = 0.8V
-100
+100
nA
IOUT = 1mA
210
600
Ground-Pin Current
IQ
IOUT = 500mA
575
µA
VOUT = 2.25V
259
400
VOUT = 2.8V
201
350
Dropout Voltage (Note 1)
IOUT = 500mA
VOUT = 4V
147
275
mV
Line Regulation
∆VLNR
VIN from (VOUT + 100mV) to 5.5V, ILOAD = 5mA
0
0.125
%/V
Load Regulation
∆VLDR
IOUT = 1mA to 500mA
15.5
35
ppm/mA
Output Voltage Noise
10Hz to 1MHz, COUT = 10µF (ESR < 0.1
Ω)
300
µVRMS
SHUTDOWN
Shutdown Supply Current
IOFF
SHDN = GND, VIN = 5.5V
0.02
5
µA
VIH
1.6
SHDN Input Threshold
VIL
0.6
V
SHDN Input Bias Current
ISHDN
SHDN = GND or IN
10
100
nA
Startup Time
tSTART
COUT = 10µF, time from SHDN high to POK high40
µs
Dual Mode is a trademark of Maxim Integrated Products, Inc.


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