MAX774 데이터 시트보기 (PDF) - Maxim Integrated

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MAX774

-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers

Maxim Integrated 

-5V/-12V/-15V or Adjustable,

High-Efficiency, Low IQ Inverting DC-DC Controllers

ABSOLUTE MAXIMUM RATINGS

Supply Voltages

V+ to OUT ...........................................................................21V

V+ to GND ..............................................................-0.3V, +17V

OUT to GND ........................................................-0.3V, to -17V

REF, SHDN, FB, CS...................................-0.3V to (V+ + 0.3V)

EXT ...............................................(VOUT - 0.3V) to (V+ + 0.3V)

Continuous Power Dissipation (TA = +70°C)

Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW

SO (derate 5.88mW/°C above +70°C) ..........................471mW

CERDIP (derate 8.00mW/°C above +70°C) ..................640mW

Operating Temperature Ranges:

MAX77_C_ _ .........................................................0°C to +70°C

MAX77_E_ _ ......................................................-40°C to +85°C

MAX77_MJA ...................................................-55°C to +125°C

Maximum Junction Temperatures:

MAX77_C_ _/E_ _ ...........................................................+150°C

MAX77_MJA..................................................................+175°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10sec) .............................+300°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.

ELECTRICAL CHARACTERISTICS

(V+ = 5V, ILOAD = 0mA, CREF = 0.1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

V+ Input Voltage Range

V+

3.0

16.5

V+ = 16.5V, SHDN ≤ 0.4V (operating)

100

Supply Current

V+ = 10V, SHDN ≥ 1.6V (shutdown)

2

5

V+ = 16.5V, SHDN ≥ 1.6V (shutdown)

4

FB Trip Point

3V ≤ V+ ≤ 16.5V

-10

10

MAX77_C

±50

FB Input Current

IFB

MAX77_E

±70

MAX77_M

±90

MAX774

-4.80

-5 -5.20

Output Voltage

VOUT

MAX775

MAX776

-11.52

-14.40

-12 -12.48

-15 -15.60

MAX77_C

1.4700 1.5 1.5300

Reference Voltage

VREF IREF = 0µA

MAX77_E

MAX77_M

1.4625

1.4550

1.5 1.5375

1.5 1.5450

REF Load Regulation

0µA ≤ IREF ≤ 100µA

MAX77_C/E

MAX77_M

4

10

4

15

REF Line Regulation

3V ≤ V+ ≤ 16.5V

40

100

Output Voltage Line Regulation

(Circuit of Figure 2—

Bootstrapped)

Output Voltage Load Regulation

(Circuit of Figure 2—

Bootstrapped)

MAX774, 4V ≤ V+ ≤ 15V, ILOAD = 0.5A

MAX775, 4V ≤ V+ ≤ 8V, ILOAD = 0.2A

MAX776, 4V ≤ V+ ≤ 6V, ILOAD = 0.1A

MAX774, 0A ≤ ILOAD ≤ 1A, V+ = 5V

MAX775, 0mA ≤ ILOAD ≤ 500mA, V+ = 5V

MAX776, 0mA ≤ ILOAD ≤ 400mA, V+ = 5V

0.035

0.088

0.137

1.5

1.5

1.0

UNITS

V

µA

mV

nA

V

V

mV

µV/V

mV/V

mV/A

2 _______________________________________________________________________________________

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