ACT8309 查看數據表（PDF） - Active-Semi, Inc

零件编号

产品描述 (功能)

生产厂家

ACT8309

1.5A, PWM Step-Down DC/DCs in TDFN

Active-Semi, Inc 

ACT8309/8310/8311

Rev 1, 15-Nov-12

ORDERING INFORMATION

PART

NUMBER

ACT8309NHADJ-T

ACT8309NHxyz-T

ACT8310NHADJ-T

ACT8310NHxyz-T

ACT8311NHADJ-T

ACT8311NHxyz-T

OUTPUT

CURRENT

0.9A

0.9A

1.2A

1.2A

1.5A

1.5A

OUTPUT

VOLTAGE

Adjustable

1.2V, 1.5V, 1.8V,

2.5V, 3.0V, 3.3Vc

Adjustable

1.2V, 1.5V, 1.8V,

2.5V, 3.0V, 3.3Vc

Adjustable

1.2V, 1.5V, 1.8V,

2.5V, 3.0V, 3.3Vc

PACKAGE

TDFN33-8

TDFN33-8

TDFN33-8

TDFN33-8

TDFN33-8

TDFN33-8

PINS

8

8

8

8

8

8

TEMPERATURE

RANGE

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

c: Fixed output voltage options are available for production subject to minimum order quantities. Contact Active-Semi for more informa-

tion regarding fixed output voltage options.

PIN CONFIGURATION

IN 1

GP 2

IN 3

G4

ACT8309

ACT8310

ACT8311

8 SW

7 EN

6 POK

5 FB

TDFN33-8

PIN DESCRIPTIONS

PIN

NAME

DESCRIPTION

1, 3

IN

Power Input. Bypass to GP close to IC with a high quality ceramic capacitor.

2

GP

Power Ground. Connect to G with a short trace.

4

G

Analog Ground. Connect to GP with a short trace.

Feedback Node. For fixed output voltage versions, connect this pin directly to the output. For

5

FB

the adjustable output versions the voltage at this pin is regulated to 0.8V, connect to this pin

to the center of the output feedback resistor divider for voltage setting.

Open-Drain Power-OK Status Output. POK is an open-drain output which sinks current when

6

POK the output voltage is less than 95% of the normal value. When the IC is disabled, POK is high

impedance.

7

EN

Enable Input. When higher than 1.4V, this pin turns the IC on. When lower than 0.4V, this pin

turn the IC off.

8

SW Switch Output. Connect this pin to the switching end of the inductor.

Innovative PowerTM

-2-

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

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