AP5724

Document number: DS31843 Rev. 4 - 2

3 of 15

www.diodes.com

December 2013

© Diodes Incorporated

AP5724

Symbol

Parameter

Min

Max

Unit

Input Voltage

2.7

5.5

V

Operating Junction Temperature

-40

125

°C

Operating Ambient Temperature

-40

85

°C

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

System Supply Input

Operating Input Voltage

2.7

—

5.5

V

UVLO

Under Voltage Lockout

—

2.2

2.4

V

Under Voltage Lockout Hysteretic

—

85

—

mV

Quiescent Current

FB = 0.2V, No Switching

—

500

—

μA

Shutdown Current

—

0.1

1

μA

Oscillator

Operation Frequency

1

1.2

1.4

MHz

Dmax

Maximum Duty Cycle

86

90

—

%

Reference Voltage

Feedback Voltage

0.09

0.1

0.11

V

FB Pin Bias Current

10

45

100

nA

MOSFET

Rds(on)

On Resistance of MOSFET

—

0.95

1.2

Ω

Switching Current Limit

Normal Operation

—

750

—

mA

Control and Protection

EN

Voltage High

ON

1.5

—

—

V

EN

Voltage Low

OFF

—

—

0.4

V

EN Pin Pull Low Current

—

4

6

μA

OVP

OVP Threshold

26

30

34

V

Thermal Resistance Junction-to-Ambient

SOT26 (Note 3)

—

162

—

°C/W

TSOT26 (Note 3)

—

152

—

U-DFN2020-6 (Note 3)

—

200

—

Thermal Resistance Junction-to-Case

SOT26 (Note 3)

—

36

—

°C/W

TSOT26 (Note 3)

—

32

—

U-DFN2020-6 (Note 3)

—

30

—

Note:

3. Test condition for SOT26, TSOT26 and U-DFN2020-6: Device mounted on FR-4 substrate, single-layer PC board, 2oz copper, with minimum

recommended pad layout