P1686

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R103-039.C

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNITS

Input Supply Voltage

-0.3 ~ +28

V

16

V

Boost Pin Voltage

-0.3 ~ +32

V

EN Pin Voltage

-0.3 ~ +16

V

FB Pin Voltage

-0.3 ~ +6

V

FB Pin Current

1

mA

SYNC Pin Current

1

mA

Junction Temperature

150

°C

Operating Temperature

-40 ~ +85

°C

Storage Temperature

-65 ~ +150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNITS

Junction to Ambient

36.5

°C/W

ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP

MAX UNITS

Operating Input Voltage

V

Maximum Switch Current Limit

3.0

A

Oscillator Frequency

550

600

750

kHz

Switch On Voltage Drop

330

mV

2.60

3

V

1.0

5

mA

Standby Current

5

45

μA

FB Input Current

-0.25

-0.50

μA

Feedback Voltage

1.176 1.2

1.224

V

Feedback Voltage Line Regulation

+3

mV/V

150

350

(Note 3)

500

850

1300

μMho

70

110

μA

70

110

μA

conductance

2.5

A/V

Threshold

Duty cycle = 0%

0.35

V

0.9

V

Maximum Switch Duty Cycle

85

%

Minimum Boost Voltage Above

Switch (Note 3)

1.8

2.7

V

10

15

Boost Current

30

45

mA

3

V

Enable Input Threshold Voltage

0.4

V

EN = 60mV above threshold

2.5

μA

Enable Input Bias Current

EN = 100mV below threshold

5

15

μA