P1482A

LINEARINTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 5

www.unisonic.com.tw

QW-R115-001.C



PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

-0.3~+18

V

Switch Node Voltage

18

V

All Other Pins

-0.3~+6

V

Continuous Power Dissipation

Internally Limited

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

143

°C/W

Note: Surface mounted on 1 in



RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

RATING

UNIT

Input Voltage

6~18

V

Output Voltage

0.923~15

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

300

365

430

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.