AP3031

Document number: DS41442 Rev. 2 - 2

4 of 13

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December 2022

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AP3031

Recommended Operating Conditions

Symbol

Parameter

Min

Max

Unit

TOP

Operating Temperature Range

-40

+85

°C

VIN

Input Voltage

2.7

16

V

VCTRL

CTRL Pin Voltage

—

16

V

Electrical Characteristics (@VIN = 5.0V, VCTRL = 5.0V, TA = +25°C, unless otherwise specified.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIN

Operating Voltage

—

2.7

—

16

V

VFB

Feedback Voltage (Note 6)

IOUT = 20mA, 3 LEDs

TA = -40°C to +85°C

188

200

212

mV

IFB

FB Pin Bias Current

—

—

35

100

nA

IQ

Quiescent Current

VFB = VIN, No Switching

3.0

4.0

5.0

mA

ISHDN

Shutdown Quiescent Current

VCTRL = 0V

20

50

80

µA

f

Switching Frequency

—

0.75

1

1.3

MHz

DMAX

Maximum Duty Cycle

—

90

93

—

%

ILIMIT

Switch Current Limit (Note 7)

D = 60%

1.2

1.4

—

A

VCESAT

Switch VCE Saturation Voltage

ISW = 0.6A

—

300

—

mV

—

Switch Leakage Current

VSW = 16V

—

0.01

5

µA

VCTRL

CTRL Pin Voltage

Active High

1.8

—

—

V

Active Low

—

—

0.5

ICTRL

CTRL Pin Bias Current

—

35

60

85

µA

VOVP

OVP Voltage

—

15.5

17.5

19.5

V

tSS

Soft-Start Time

—

—

250

—

µs

tSTB

Standby Time

—

—

0.7

—

ms

TOTSD

Thermal Shutdown

—

—

+155

—

°C

JC

Thermal Resistance

(Junction to Case)

—

—

60

—

°C/W

Notes:

6. The bold type specifications of full temperature range are guaranteed by design (GBD).

7. The switch current limit is related to duty cycle. Please refer to Figure Switch Current Limit vs. Duty Cycle for detail.