MAX683 datasheet(2/12 Pages) MAXIM

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3.0V

≤ IN ≤ 3.6V for SKIP = 0,

3.3V-Input to Regulated 5V-Output

Charge Pumps

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 3V, V SKIP = 0V, CIN = 1µF, CX = 0.47µF, COUT = 2µF, I SHDN = 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)

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.

IN, OUT, SHDN, SKIP to GND.................................-0.3V to +6V

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

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

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

Continuous Output Current

MAX682........................................................................300mA

MAX683........................................................................150mA

MAX684..........................................................................75mA

Output Short-Circuit Duration ...............................................5sec

Continuous Power Dissipation (TA = +70°C)

8-Pin SO (derate 5.9mW/°C above +70°C).................471mW

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

Operating Temperature Range

MAX68_E_A ....................................................-40°C to +85°C

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

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

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

Regulation with VIN > 3.6V requires

SKIP = high

RL = 5V/IMAX

(Note 2)

TA = +25°C

ISHDN =4.4µA

MAX682

SKIP = 0, VIN = 3.6V

SKIP = high, 0

≤ ILOAD ≤ IMAX

ISHDN = 22µA

CONDITIONS

µs

tSTART

Shutdown Exit Time

160

200

250

750

1000

1300

kHz

850

1000

1200

Switching Frequency (Note 2)

100

Input Undervoltage Lockout

Hysteresis

2.0

2.35

2.6

2.7

5.5

VIN

Input Voltage Range

Input Undervoltage Lockout

Threshold

µA

ISHDN

SHDN Input Current Range

630

690

750

VON, SHDN

SHDN On Bias Voltage

0.35

VINL, SHDN

SHDN Logic Low Input

250

IMAX

Maximum Output Current

0.1

0.18

No-Load Input Current

-3

∆VLDR

Load Regulation

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

0°C < TA < +85°C

-40°C < TA < +85°C

0°C < TA < +85°C

150

200

270

-40°C < TA < +85°C

MAX683

100

MAX684

7.5

SHDN = 0, VIN = 5.5V, VOUT = 0

µA

0.1

IQ, SHDN

Shutdown Supply Current

0 < ILOAD ≤ IMAX;

3.0V

≤ IN ≤ 3.6V for SKIP = 0,

3.0V

≤ IN ≤ 5.5V for SKIP = IN

4.80

5.05

5.20

VOUT

Output Voltage

2.5

SKIP = VIN = 3.6V

1.7

MAX684

MAX683

MAX682

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