AP8802H

60V 1A LED Step-down Converter

AP8802H

Document number: DS32227 Rev. 1 - 2

4 of 11

www.diodes.com

June 2010

© Diodes Incorporated

Symbol

Parameter

Conditions

Min

Typ.

Max

Unit

Operating Input Voltage

8.0

-

60

V

Continuous switch current

(Note 3)

1

A

Quiescent Current

-

75

120

μA

Switching Frequency

-

-

0.5

MHz

Internal Threshold Voltage

190

200

210

mV

Internal Reference Voltage

-

1.25

-

V

SET

SET pin input current

-

5

-

μA

Rds(on)

On Resistance of MOSFET

0.65

1.1

Ω

Switch leakage current

-

-

8

μA

EN

Voltage High

ON

1.25

-

-

V

EN

Voltage Low

OFF

-

-

0.2

V

θ

JA

Thermal Resistance Junction-

to-Ambient

SO-8-EP (Note 4)

-

45

-

°C/W

θ

JC

Thermal Resistance Junction-

to-Case

SO-8-EP (Note 4)

-

7

-

°C/W

Notes:

3. Refer to figure 8 for the device derating curve.

4. Test condition for SO-8-EP: Device mounted on FR-4 PCB, 2”x2”, 2oz copper, minimum recommended pad layout on top layer and thermal vias to

bottom layer ground plane. For better thermal performance, larger copper pad for heat-sink is needed.