FAN5331 datasheet(3/10 Pages) FAIRCHILD

部品番号	FAN5331

部品情報	1.6MHz Boost Converter with 20V Integrated FET Switch

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FAN5331 Rev. 1.0.1

Electrical Characteristics

Test Circuit

Figure 3. Test Circuit

Unless otherwise noted, VIN = 3.6V, TA = -40°C to +85°C, Typical values are at TA = 25°C, Test Circuit,

Figure 3.

Parameter

Conditions

Min.

Typ.

Max.

Units

Switch Current Limit

VIN = 3.2V

0.7

1

A

Load Current

VOUT = 15V,

35

mA

VOUT = 15V,

50

mA

Switch On-resistance

VIN = 5V

0.5

Ω

VIN = 3.6V

0.7

Ω

Quiescent Current

VSHDN = 3.6V, No Switching

0.7

mA

VSHDN = 3.6V, Switching

1.6

3.0

mA

OFF Mode Current

VSHDN = 0V

0.1

2

µA

Shutdown Threshold

Device ON

1.5

V

Device OFF

0.5

V

Shutdown Pin Bias Current

VSHDN = 0V or VSHDN = 5.5V

10

nA

Feedback Voltage

ILoad = 0mA

1.205

1.230

1.255

V

Feedback Pin Bias Current

10

nA

Feedback Voltage Line Regulation

2.7V < VIN < 5.5V, ILOAD = 0mA

0.6

1.2

%

Switching Frequency

1.15

1.6

1.85

MHz

Maximum Duty Cycle

87

93

%

Enable Delay

VIN = 2.7V, IOUT = 35mA, VOUT = 15V

0.8

5

mS

Power on Delay

VIN = 2.7V, IOUT = 35mA, VOUT = 15V

0.8

5

mS

Switch Leakage Current

No Switching, VIN = 5.5V

1

µA

V

IN

2.7V

≥

V

IN

3.2V

≥

150K

Ω

13.4K

Ω

SHDN

VIN

VOUT

R1

R2

GND

V

IN

FB

SW

CF

CIN

10µH

1

3

2

4

5

4.7

µF

120pF

COUT

L

BAT54

4.7

µF

2.7V to 5.5V

ON

OFF

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