AL8821

Document number: DS37671 Rev. 1 - 2

3 of 14

www.diodes.com

January 2015

© Diodes Incorporated

AL8821

Symbol

Parameter

Rating

Unit

VIN Pin Voltage

-0.3 to 40

V

SW Pin Voltage

-0.3 to 40

V

COMP Pin Voltage

-0.3 to 6

V

CS Pin Voltage

-0.3 to 6

V

FB Pin Voltage

-0.3 to 6

V

VCC Pin Voltage

-0.3 to 6

V

Operating Junction Temperature

+150

ºC

Storage Temperature

-65 to +150

ºC

Thermal Resistance (Junction to Ambient) (Note 5)

66

°C/W

Lead Temperature (Soldering, 10sec)

+300

ºC

–

ESD (Machine Model)

200

V

–

ESD (Human Body Model)

2000

V

Notes:

4.

Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and

functional operation of the device at these or any other conditions

beyond those indicated under “Recommended Operating Conditions” is not implied.

Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.

5. Device mounted on FR-4 PCB (51mm x 51mm) 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.

Recommended Operating Conditions

Symbol

Parameter

Min

Max

Unit

VIN Pin Voltage

5

36

V

Ambient Temperature

-40

+105

°C

Symbol

Parameters

Conditions

Min

Typ

Max

Unit

Input Supply

VIN Pin Voltage

–

5

–

36

V

Quiescent Current

No Switching

–

1

–

mA

Under-Voltage Lockout

Voltage

–

4.2

–

V

UVLO Hysteresis

–

–

500

–

mV

VCC Regulator

VCC Pin Voltage

–

4.5

5

5.5

V

–

Source Current Capability

10

–

–

mA

–

Load Regulation

–

–

4

–

%