MAX682 datasheet(3/12 Pages) MAXIM

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3.3V-Input to Regulated 5V-Output

Charge Pumps

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 3V, V SKIP = 0V, CIN = 1µF, CX = 0.47µF, COUT = 2µF, ISHDN = 22µA; IMAX = 250mA for MAX682, IMAX = 100mA for MAX683,

IMAX = 50mA for MAX684; TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

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

Note 2: Current into SHDN determines oscillator frequency: REXT (kΩ) = 45000 (VIN - 0.69V) / fOSC (kHz)

VIN = 5.5V, V SKIP = 0V or 5.5V

VIN = 5.5V

CONDITIONS

µA

-1

ISKIP

SKIP Input Leakage Current

2.4

VINH, SKIP

SKIP Input Voltage High

0.8

VINL, SKIP

SKIP Input Voltage Low

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

__________________________________________Typical Operating Characteristics

(Circuit of Figure 5, VIN = 3.3V, component values from Tables 2 and 3, TA = +25°C, unless otherwise noted.)

MAX682

MAX683

MAX684

NO-LOAD SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

SKIP = HIGH

ISHDN = 22µA

5.50

4.00

100

1000

OUTPUT VOLTAGE vs. LOAD CURRENT

(SKIP = LOW)

LOAD CURRENT (mA)

4.50

5.00

5.25

4.25

4.75

MAX684

MAX683

MAX682

5.50

4.00

100

1000

OUTPUT VOLTAGE vs. LOAD CURRENT

(SKIP = HIGH)

LOAD CURRENT (mA)

4.50

5.00

5.25

4.25

4.75

MAX684

MAX683

MAX682

SKIP = HIGH

ISHDN = 22µA

3.50

3.75

4.00

4.25

4.50

4.75

5.00

5.25

5.50

OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

SKIP = HIGH

SKIP = LOW

10M

10k

0.1

100

OSCILLATOR FREQUENCY vs.

SHUTDOWN PIN INPUT CURRENT

SHDN INPUT CURRENT (

µA)

100k

100

0.1

100

NO-LOAD SUPPLY CURRENT vs.

SHUTDOWN PIN INPUT CURRENT

SHDN INPUT CURRENT (

µA)

MAX683

MAX682

MAX684

SKIP = HIGH

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