P1482

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 5

www.unisonic.com.tw

QW-R103-057.E

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

-0.3~+23

V

Switch Node Voltage

23

V

All Other Pins

-0.3~+6

V

Continuous Power Dissipation

1.4

W

Junction Temperature

150

°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

RATING

UNIT

Junction to Ambient

90

°C/W

Junction to Case

45

°C/W

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

RATING

UNIT

Input Voltage

6~23

V

Output Voltage

0.923~20

V

Ambient Operating Temperature

-40~+85

°C

Note: The device is not guaranteed to function outside of its operating conditions.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Supply Current

3.5

5

mA

Feedback Voltage

0.900 0.923 0.946

V

High-Side Switch On Resistance (Note 1)

110

mΩ

Low-Side Switch On Resistance (Note 1)

100

mΩ

High-Side Switch Leakage Current

10

μA

Upper Switch Current Limit

Minimum Duty Cycle

2.4

3.4

A

Lower Switch Current Limit

From Drain to Source

1.1

A

COMP to Current Sense

Transconductance

5

A/V

Oscillation Frequency

305

340

375

KHz

Short Circuit Oscillation Frequency

40

KHz

Maximum Duty Cycle

92

%

EN Shutdown Threshold Voltage

0.7

0.9

2.0

V

Input Under Voltage Lockout Threshold

4

V

Soft-Start Current

15

μA

Thermal Shutdown (Note)

160

°C

Note: Guaranteed by design, not tested.