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1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Data Sheet

Sept. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited

General Description

The AZ2940 is a low dropout three-terminal regulator

with a typical dropout of 280mV at 1A output current.

The AZ2940 provides current limit and thermal shut-

down. On-chip thermal shutdown provides protection

against any combination of high current and ambient

temperature that would create excessive junction tem-

peratures.

The AZ2940 has 1.2V, 1.8V, 2.5V, 3.3V and 5.0V ver-

sions.

The AZ2940 series is available in the industry standard

TO-220-3, TO-263-3, TO-252-2 (1), TO-252-2 (3) and

SOT-223 power packages. (Detailed information

please refer to page 4)

Features

· Minimum Guaranteed Output Current: 1A

· Dropout Voltage at I

OUT

=1A: 280mV Typ.

(Except 1.2V and 1.8V Versions)

· Output Accuracy:

± 1%

· Low Ground Current

· Internal Current Limit and Thermal Protection

· Reversed-battery and Reversed-lead Insertion

Protection

· Fast Transient Response

Applications

· LCD TV

· Set Top Box

· LCD Monitor

· SMPS Post Regulator

· Laptop, Palmtop and Notebook

· Portable Instrumentation

· USB Power Supply

Figure 1. Package Types of AZ2940

TO-220-3 TO-263-3

TO-252-2 (1)

SOT-223

TO-252-2 (3)

1 2 3 4 5 6 ... 21 22

Inhaltsverzeichnis

Seite 1 - Applications

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet1Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 2 - Pin Configuration

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet10Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 3 - Pin Description

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet11Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 4 - Ordering Information

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet12Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 5

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet13Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 6 - Electrical Characteristics

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet14Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 7

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet15Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 8

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet16Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 9

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet17Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 10

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet18Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 11

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet19Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 12

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet2Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 13

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet20Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 14

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet21Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 15

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Seite 16 - Typical Application

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet3Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 17 - TO-220-3 Unit: mm(inch)

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet4Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 18 - TO-263-3 Unit: mm(inch)

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet5Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 19 - SOT-223 Unit: mm(inch)

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet6Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 20 - TO-252-2 (1) Unit: mm(inch)

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet7Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 21 - TO-252-2 (3) Unit: mm(inch)

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet8Sept. 2011 Rev. 2. 4 BCD Semiconductor

Seite 22

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940 Data Sheet9Sept. 2011 Rev. 2. 4 BCD Semiconductor

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