MAX5035AASASLASHV+ datasheet(2/17 Pages) MAXIM

2 / 17 page

1A, 76V, High-Efficiency MAXPower

Step-Down DC-DC Converter

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

(Voltages referenced to GND, unless otherwise specified.)

VIN .........................................................................-0.3V to +80V

SGND ....................................................................-0.3V to +0.3V

LX.................................................................-0.8V to (VIN + 0.3V)

BST ...............................................................-0.3V to (VIN + 10V)

BST (transient < 100ns) ................................-0.3V to (VIN + 15V)

BST to LX................................................................-0.3V to +10V

BST to LX (transient < 100ns) ................................-0.3V to +15V

ON/

OFF........................................................-0.3V to (VIN + 0.3V)

VD...........................................................................-0.3V to +12V

MAX5035A/MAX5035B/MAX5035C ...................-0.3V to +15V

MAX5035D .........................................................-0.3V to +12V

VOUT Short-Circuit Duration (VIN ≤ 40V)........................Indefinite

VD Short-Circuit Duration ..............................................Indefinite

Continuous Power Dissipation (TA = +70°C)

8-Pin PDIP (derate 9.1mW/°C above +70°C)...............727mW

8-Pin SO (derate 5.9mW/

°C above +70°C)..................471mW

Operating Temperature Range

MAX5035_U_ _ ...................................................0

°C to +85°C

MAX5035_A_ _ ..............................................-40

°C to +125°C

Storage Temperature Range .............................-65

°C to +150°C

Junction Temperature ......................................................+150

°C

Lead Temperature (soldering, 10s) .................................+300°C

ELECTRICAL CHARACTERISTICS (MAX5035_U_ _)

(VIN = +12V, VON/OFF = +12V, IOUT = 0, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C. See the

Typical Application Circuit.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

MAX5035A

7.5

76.0

MAX5035B

7.5

76.0

MAX5035C

Input Voltage Range

VIN

MAX5035D

7.5

76.0

Undervoltage Lockout

UVLO

5.2

MAX5035A

VIN = 7.5V to 76V,

IOUT = 20mA to 1A

3.185

3.3

3.415

MAX5035B

VIN = 7.5V to 76V,

IOUT = 20mA to 1A

4.85

5.0

5.15

Output Voltage

VOUT

MAX5035C

VIN = 15V to 76V,

IOUT = 20mA to 1A

11.64

12.36

Feedback Voltage

VFB

VIN = 7.5V to 76V, MAX5035D

1.192

1.221

1.250

VIN = 12V, ILOAD = 0.5A, MAX5035A

VIN = 12V, ILOAD = 0.5A, MAX5035B

VIN = 24V, ILOAD = 0.5A, MAX5035C

Efficiency

VIN = 12V, VOUT = 5V, ILOAD = 0.5A,

MAX5035D

VFB = 3.5V, VIN = 7.5V to 76V, MAX5035A

270

440

VFB = 5.5V, VIN = 7.5V to 76V, MAX5035B

270

440

VFB = 13V, VIN = 15V to 76V, MAX5035C

270

440

Quiescent Supply Current

VFB = 1.3V, MAX5035D

270

440

µA

Shutdown Current

ISHDN

VON/OFF = 0V, VIN = 7.5V to 76V

µA

Peak Switch Current Limit

ILIM

(Note 1)

1.30

1.80

2.50

Switch Leakage Current

IOL

VIN = 76V, VON/OFF = 0V, VLX = 0V

µA

Switch On-Resistance

RDS(ON)

ISWITCH = 1A

0.40

0.80

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