FAN5631MPX datasheet(5/11 Pages) FAIRCHILD

Part #	FAN5631MPX

Description	Regulated Step-Down Charge Pump DC/DC Converter

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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FAN5631/FAN5632 Rev. 1.0.2

Typical Performance Characteristics

TA = 25°C, VOUT = 1.5V, VIN = 3.6V, CIN = 10µF, COUT = 10µF, CB = 1µF, unless otherwise noted.

Load Regulation

Line Regulation

Efficiency vs. Load Current

Thermal Regulation

Load Current (mA)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

1.40

1.45

1.50

1.55

1.60

Input Voltage(V)

ILoad = 50mA

TA = -40°C

TA = 85°C

TA = 25°C

2

2.5

3

3.5

4

4.5

5

5.5

Input Voltage (V)

Efficiency vs. Input Voltage

-2

-1.5

-1

-0.5

0

0.5

020

40

60

80

100

120

140

160

180

2.7V

3.2V

5.5V

2.2V

30

35

40

45

50

55

60

65

70

75

80

85

90

VOUT = 1.5V

VSEL = HIGH

ILOAD = 150mA

40

45

50

55

60

65

70

75

80

85

90

110

100

Load Current (mA)

VIN = 3.3V

VSEL= HIGH

VIN = 4.2V

VIN = 2.7V

FAN5632 Efficiency Optimizer

Efficiency and Output Voltage vs. Input Voltage

50

60

70

80

90

100

2.5

3

3.5

4

4.5

5

5.5

1.2

1.3

1.4

1.5

I

LOAD = 100mA, V

SEL = LOW

1.50

1.51

1.52

1.53

1.54

-50

-25

0

25

50

75

100

125

150

Ambient Temperature (

°C)

V

IN = 3.6V

I

LOAD = 1mA

3.6V

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