FSP3603TCAD datasheet(2/9 Pages) FOSLINK

2 / 9 page

1.2MHZ MICROPOWER SYNCHRONOUS STEP-UP CONVERTER

2007-4-19

2/9

FSP3603

ABSOLUTE MAXIMUM RATINGS

(NOTE 1)

Parameter

Rating

Unit

VIN

- 0.3 ~ +6

VOUT

- 0.3 ~ +6

VSW

- 0.3 ~ +6

FB SHDN Voltages

- 0.3 ~ +6

℃

Operating Temperature Range（Note 2）

- 40 ~ +85

℃

Lead Temperature (Soldering 10 sec.)

+ 300

℃

250(θJA)

Thermal Resistance(Note 3)

110(θJC)

℃

Storage Temperature Range

- 65 ~ +150

℃

Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.

Note 2: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula:

TJ = TA + (PD) x (250°C/W

Note 3: Thermal Resistance is specified with approximately 1 square of 1 oz copper.

ELECTRICAL CHARACTERISTICS

(NOTE 4)

(VIN= 1.2V, VOUT= 3.3V, TA=25℃, Unless otherwise noted)

Parameter

Condition

Min.

Typ.

Max.

Unit

Output Voltage Range

2.5

Minimum Start-Up Voltage

ILOAD = 1mA

0.85

1.0

Minimum Operating Voltage

VSHDN= VIN

0.5

0.65

0.95

1.2

1.5

Switching Frequency

- 40℃ ~ +85℃

0.85

1.2

1.5

MHz

Max Duty Cycle

VFB = 1.15V - 40℃ ~ +85℃

Current Limit Delay to Output

Guaranteed by design

Feedback Voltage

- 40℃ ~ +85℃

1.192

1.230

1.268

NMOS Switch Leakage

VSW = 5V

0.1

µA

PMOS Switch Leakage

VSW = 0V

0.1

µA

VOUT = 3.3V

0.40

NMOS Switch On Resistance

VOUT = 5V

0.35

Ω

VOUT = 3.3V

0.70

PMOS Switch On Resistance

VOUT = 5V

0.60

Ω

NMOS Current Limit

600

850

Quiescent Current (Active)

Measured on VOUT

300

500

µA

Shutdown Current

VSHDN=0V

0.01

µA

Line Regulation

VIN = 0.8V to 3.0V, IOUT = 10mA

%/V

Load Regulation

IOUT = 1 mA to 100mA

0.02

%/mA

SHDN Input Threshold

0.35

0.60

1.50

SHDN Input Current

VSHDN = 5.5V

0.01

µA

Note 4: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design

and characterization.

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