MAX679C/D 데이터 시트보기 (PDF) - Maxim Integrated

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MAX679C/D

Regulated 3.3V Charge Pump

Maxim Integrated 

Regulated 3.3V Charge Pump

ABSOLUTE MAXIMUM RATINGS

IN, OUT, SHDN, FSET to GND....................................-0.3V to 6V

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

C1- to GND ..................................................-0.3V to (VIN + 0.3V)

C1+ to GND..............................................-0.3V to (VOUT + 0.3V)

OUT Short to GND ..............................................................10sec

Continuous Power Dissipation (TA = +70°C)

µMAX (derate 4.1mW/°C above +70°C) .......................330mW

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

(VIN = V SHDN = VFSET = 2V, CIN = 4.7µF, C1 = 0.33µF, COUT = 10µF, TA = -40°C to +85°C, unless otherwise noted. Typical values

are at TA = +25°C.) (Note 1)

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

Input Voltage

1.8

3.6

V

Input Undervoltage Lockout Voltage

0.8

1.6

V

Output Voltage

2V < VIN < 3.3V,

0mA < IOUT < 20mA

TA = 0°C to +85°C

TA = -40°C to +85°C

3.17

3.3

3.43

V

3.15

3.45

Output Current

VIN = 1.8V, VOUT > 3.17V

20

mA

No-Load Supply Current

VIN = 2.5V, FSET = IN or GND

Leakage Current into OUT in Shutdown VOUT = 3.6V, SHDN = GND

Supply Current in Shutdown

VIN = 3.3V

50

80

µA

15

25

µA

1

5

µA

FSET, SHDN Input Voltage Low

VIN = 1.8V

0.5 x

VIN

0.3 x

VIN

V

FSET, SHDN Input Voltage High

FSET, SHDN Input Leakage Current

Switching Frequency

VIN = 3.6V

FSET, SHDN = GND or VIN

FSET = GND

FSET = IN

0.7 x

VIN

0.5 x

VIN

V

0.1

1

µA

260

330

450

kHz

700 1000 1300

Output Short-Circuit Current

Efficiency

OUT = GND, VIN = 3.3V

VIN = 2V, IOUT = 10mA

100

200

mA

80

%

Note 1: Specifications to -40°C are guaranteed by design, not production tested.

2 _______________________________________________________________________________________

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