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MAX5025 Datasheet(PDF) 2 Page - Maxim Integrated Products

Part No. MAX5025
Description  500kHz, 36V Output, SOT23, PWM Step-Up DC-DC Converters
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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500kHz, 36V Output, SOT23, PWM Step-Up
DC-DC Converters
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC = 5V, SHDN = VCC, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +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.
VCC to GND ............................................................-0.3V to +12V
PGND to GND .......................................................-0.1V to +0.1V
FB to GND (MAX5025/MAX5026)...............-0.3V to (VCC + 0.3V)
FB to GND (MAX5027/MAX5028)...........................-0.3V to +40V
SHDN to GND.............................................-0.3V to (VCC + 0.3V)
LX to GND ..............................................................-0.3V to +45V
Peak LX Current ................................................................600mA
Operating Temperature Range ...........................-40°C to +85°C
Continuous Power Dissipation (TA = +70
°C)
6-Pin SOT23 (derate 7.1mW/°C above +70°C)..........695.7mW
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering 10s) ..................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY VOLTAGE
MAX5026/MAX5028
3.0
11
Input Voltage Range
VCC
MAX5025/MAX5027
4.5
11
V
Undervoltage Lockout
VUVLO
Rise/fall, hysteresis = 3mV
2.25
2.65
2.95
V
Supply Current
ICC
MAX5025/MAX5026, FB = 1.4V
MAX5027/MAX5028, FB = 35V
350
1000
µA
Shutdown Current
ISHDN
SHDN = GND
0.01
1µA
BOOST CONVERTER
MAX5025/MAX5027
345
500
1000
Switching Frequency
fSW
MAX5026/MAX5028, VCC = 3.3V
410
500
670
kHz
MAX5025/MAX5027,
ILOAD = 2mA, VCC = 4.5V to 11V,
VOUT = 30V
0.25
Line Regulation
MAX5026/MAX5028,
ILOAD = 0.5mA, VCC = 3V to 11V,
VOUT = 30V
0.25
%/V
MAX5025/MAX5027,
VCC = 5V, ILOAD = 0 to 4mA,
VOUT = 30V
2.0
Load Regulation
MAX5026/MAX5028,
VCC = 3.3V, ILOAD = 0 to 1mA,
VOUT = 30V
1.0
%
Thermal Shutdown
140
°C
Thermal Shutdown Hysteresis
2
°C




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