MAX685 datasheet(4/12 Pages) MAXIM

Part #	MAX685

Description	Dual-Output Positive and Negative, DC-DC Converter for CCD and LCD

PDF	12 Pages

Scroll/Zoom	100%

Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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4 / 12 page

1.240

1.242

1.244

1.248

1.246

1.250

1.252

1.254

-40

-20

100

REFERENCE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

VIN = 5.0V

VIN = 3.3V

Dual-Output (Positive and Negative),

DC-DC Converter for CCD and LCD

_______________________________________________________________________________________

EFFICIENCY vs. LOAD CURRENT

(POSITIVE OUTPUT LOADED)

LOAD CURRENT (mA)

VIN = 5.0V

VIN = 3.3V

EFFICIENCY vs. LOAD CURRENT

(NEGATIVE OUTPUT LOADED)

LOAD CURRENT (mA)

VIN = 5.0V

VIN = 3.3V

EFFICIENCY vs. LOAD CURRENT

(BOTH OUTPUTS LOADED)

LOAD CURRENT (mA)

VIN = 5.0V

VIN = 3.3V

0.5

1.0

1.5

2.0

2.5

3.5

3.0

4.0

4.5

5.0

5.5

NO-LOAD CURRENT vs.

INPUT VOLTAGE

INPUT VOLTAGE (V)

150

180

170

160

190

200

210

220

230

240

250

2.7

3.7

3.2

4.2

4.7

5.2

5.7

LX SWITCHING FREQUENCY

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

SYNC = VDD

1.248

1.249

1.250

15 20

25 30

35 40 45

REFERENCE LOAD REGULATION

LOAD CURRENT (µA)

Typical Operating Characteristics

(Circuit of Figure 3, VOUT+ = 15V, VOUT- = -7.5V, TA = +25°C, unless otherwise noted.)

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