500kHz, 36V Output, SOT23, PWM Step-Up

DC-DC Converters

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

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.

PGND to GND .......................................................-0.1V to +0.1V

FB to GND (MAX5027/MAX5028)...........................-0.3V to +40V

LX to GND ..............................................................-0.3V to +45V

Peak LX Current ................................................................600mA

Operating Temperature Range ...........................-40°C to +85°C

°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

MAX5025/MAX5027

4.5

11

V

Undervoltage Lockout

Rise/fall, hysteresis = 3mV

2.25

2.65

2.95

V

Supply Current

MAX5025/MAX5026, FB = 1.4V

MAX5027/MAX5028, FB = 35V

350

1000

µA

Shutdown Current

SHDN = GND

0.01

1µA

BOOST CONVERTER

MAX5025/MAX5027

345

500

1000

Switching Frequency

410

500

670

kHz

MAX5025/MAX5027,

0.25

Line Regulation

MAX5026/MAX5028,

0.25

%/V

MAX5025/MAX5027,

2.0

Load Regulation

MAX5026/MAX5028,

1.0

%

Thermal Shutdown

140

°C

Thermal Shutdown Hysteresis

2

°C