MAX1763 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1763

1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter

Maxim Integrated 

1.5A, Low-Noise, 1MHz, Step-Up

DC-DC Converter

ABSOLUTE MAXIMUM RATINGS

ONA, ONB, AO, OUT to GND.......................................0.3V, +6V

PGND to GND.....................................................................±0.3V

LX to PGND ............................................-0.3V to (VPOUT + 0.3V)

CLK/SEL, REF, FB, ISET, POUT,

AIN to GND.........................................-0.3V to (VOUT + 0.3V)

POUT to OUT ......................................................................±0.3V

Continuous Power Dissipation

16-Pin QSOP (derate 8.7mW/°C above +70°C)...........667mW

16-Pin TSSOP-EP (derate 19mW/°C above +70°C) ...........1.5W

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

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

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

Soldering Temperature (reflow) .......................................+260°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

(CLK/SEL = ONB = FB = PGND = GND, ISET = REF, OUT = POUT, VONA = VAIN = VOUT = 3.6V, TA = 0°C to +85°C, unless other-

wise noted. Typical values are at TA = +25°C.)

PARAMETER

DC-DC CONVERTER

Input Voltage Range (Note 1)

CONDITIONS

MIN TYP MAX UNITS

0.7

5.5

V

Minimum Startup Voltage

(Note 2)

ILOAD < 1mA, TA = +25°C

0.9

1.1

V

Temperature Coefficient of

Startup Voltage

ILOAD < 1mA

-2

mV/°C

Frequency in Startup Mode

Internal Oscillator Frequency

VOUT = 1.5V

CLK/SEL = OUT

125

500 1000 kHz

0.8

1

1.2

MHz

Oscillator Maximum Duty Cycle

(Note 3)

80

86

90

%

External Clock Frequency Range

0.5

1.2

MHz

Output Voltage

FB Regulation Voltage

FB Input Current

Load Regulation

Output Voltage Adjust Range

Output Voltage Lockout

Threshold (Note 4)

ISET Input Leakage Current

Supply Current in Shutdown

No-Load Supply Current, Low-

Power Mode (Note 5)

No-Load Supply Current, Low-

Noise Mode

Gain Block Supply Current

VFB < 0.1V, CLK/SEL = OUT, includes load regulation

for 0 < ILX < 1.1A

Adjustable output, CLK/SEL = OUT, includes load

regulation for 0 < ILX < 1.1A

VFB = 1.35V

CLK/SEL = OUT, 0 < ILX < 1.1A

Rising edge

VISET = 1.25V

V ONB = 3.6V, VONA = 0V

CLK/SEL = GND, AIN = OUT

CLK/SEL = OUT

VAIN < (VOUT - 1.4V), gain block enabled

3.17

3.3

3.38

V

1.215 1.245 1.270

V

0.01 100

nA

-1.0

%

2.5

5.5

V

2.00 2.15 2.30

V

0.01

50

nA

1

10

µA

110 200

µA

2.5

mA

25

50

µA

2 _______________________________________________________________________________________

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