Diodes AZ2940 User Manual

Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

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 shut­down. On-chip thermal shutdown provides protection
against any combination of high current and ambient
temperature that would create excessive junction tem­peratures.

The AZ2940 has 1.2V, 1.8V, 2.5V, 3.3V and 5.0V ver­sions.

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

(Except 1.2V and 1.8V Versions)

· Output Accuracy:

· Low Ground Current

· Internal Current Limit and Thermal Protection

· Reversed-battery and Reversed-lead Insertion

Protection

· Fast Transient Response

± 1%

=1A: 280mV Typ.

OUT

Applications

· LCD TV

· Set Top Box

· LCD Monitor

· SMPS Post Regulator

· Laptop, Palmtop and Notebook

· Portable Instrumentation

· USB Power Supply

TO-220-3 TO-263-3

TO-252-2 (1)

Figure 1. Package Types of AZ2940

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

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TO-252-2 (3)

SOT-223

Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Pin Configuration

T Package
(TO-220-3)

3

2

1

(TO-252-2 (1))

3

2

1

V

OUT

GND

V

IN

V

OUT

GND

V

IN

D Package

S Package

(TO-263-3)

3

2

1

(TO-252-2 (3))

3

2

1

V

OUT

GND

V

IN

V

OUT

GND

V

IN

H Package

(SOT-223)

3

2

1

V

GND

V

OUT

IN

Figure 2. Pin Configuration of AZ2940 (Top View)

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

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Pin Description

Pin Number Pin Name Function

1V

2 GND Ground pin. This pin and TAB are internally connected

3V

Functional Block Diagram

1

V

IN

IN

OUT

Reference +

Unregulated Input

Regulated Output

1.24V

-

16V

3

V

OUT

Thermal

Shutdown

2

GND

Figure 3. Functional Block Diagram of AZ2940

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

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Ordering Information

-

AZ2940

Package

TO-220-3

TO-263-3

TO-252-2 (1)

/TO-252-2 (3)

SOT-223

Circuit Type

Package

T: TO-220-3
S: TO-263-3
D: TO-252-2 (1)/TO-252-2 (3)
H: SOT-223

Temperature

Range

-40 to 125

-40 to 125oC

-40 to 125

-40 to 125

o

C

o

C

o

C

Lead Free Green Lead Free Green

AZ2940T-3.3E1 AZ2940T-3.3G1 AZ2940T-3.3E1 AZ2940T-3.3G1 Tube

AZ2940T-5.0E1 AZ2940T-5.0G1 AZ2940T-5.0E1 AZ2940T-5.0G1 Tube

AZ2940S-3.3E1 AZ2940S-3.3G1 AZ2940S-3.3E1 AZ2940S-3.3G1 Tube

AZ2940S-3.3TRE1 AZ2940S-3.3TRG1 AZ2940S-3.3E1 AZ2940S-3.3G1 Tape & Reel

AZ2940S-5.0E1 AZ2940S-5.0G1 AZ2940S-5.0E1 AZ2940S-5.0G1 Tube

AZ2940S-5.0TRE1 AZ2940S-5.0TRG1 AZ2940S-5.0E1 AZ2940S-5.0G1 Tape & Reel

AZ2940D-1.8E1 AZ2940D-1.8G1 AZ2940D-1.8E1 AZ2940D-1.8G1 Tube

AZ2940D-1.8TRE1 AZ2940D-1.8TRG1 AZ2940D-1.8E1 AZ2940D-1.8G1 Tape & Reel

AZ2940D-2.5E1 AZ2940D-2.5G1 AZ2940D-2.5E1 AZ2940D-2.5G1 Tube

AZ2940D-2.5TRE1 AZ2940D-2.5TRG1 AZ2940D-2.5E1 AZ2940D-2.5G1 Tape & Reel

AZ2940D-3.3E1 AZ2940D-3.3G1 AZ2940D-3.3E1 AZ2940D-3.3G1 Tube

AZ2940D-3.3TRE1 AZ2940D-3.3TRG1 AZ2940D-3.3E1 AZ2940D-3.3G1 Tape & Reel

AZ2940D-5.0E1 AZ2940D-5.0G1 AZ2940D-5.0E1 AZ2940D-5.0G1 Tube

AZ2940D-5.0TRE1 AZ2940D-5.0TRG1 AZ2940D-5.0E1 AZ2940D-5.0G1 Tape & Reel

E1: Lead Free
G1: Green

TR: Tape and Reel
Blank: Tube

1.2: Fixed Output 1.2V

1.8: Fixed Output 1.8V

2.5: Fixed Output 2.5V

3.3: Fixed Output 3.3V

5.0: Fixed Output 5.0V

Part Number Marking ID

AZ2940D-1.2G1 AZ2940D-1.2G1 Tube

AZ2940D-1.2TRG1 AZ2940D-1.2G1 Tape & Reel

AZ2940H-1.2TRG1 GH12B Tape & Reel

AZ2940H-1.8TRG1 GH12F Tape & Reel

AZ2940H-2.5TRG1 GH12G Tape & Reel

AZ2940H-3.3TRG1 GH12H Tape & Reel

AZ2940H-5.0TRG1 GH12J Tape & Reel

Packing

Typ e

BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Absolute Maximum Ratings (Note 1)

Parameter Symbol

Input Voltage V

Operating Junction Temperature T

Storage Temperature Range T

Lead Temperature (Soldering, 10sec) T

IN

J

STG

LEAD

Va lu e

16 V

150

-65 to 150

260

Unit

o

C

o

C

o

C

TO-220-3 60

Thermal Resistance

θ

JA

TO-263-3 60

o

C/W

TO-252-2 (1)/TO-252-2 (3) 100

SOT-223 120

ESD (Human Body Model) ESD 5000 V

ESD (Machine Model) ESD 300 V

Note 1: 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.

Recommended Operating Conditions

Parameter Symbol Min Max Unit

Input Voltage

Operating Junction Temperature

VIN

T

2.5 13.2 V

J

-40 125

o

C

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Electrical Characteristics

AZ2940-1.2 Electrical Characteristics

Operating Conditions: V

The Boldface applies over -40

Parameter Symbol Condition Min Typ Max Unit

Output Voltage

Line Regulation V

Load Regulation V

Output Voltage
Temperature Coefficient

Ground Current

Short Circuit Current I

Minimum Load Current I

Output Noise Voltage (rms) 10Hz to 100KHz, I

Thermal Resistance

=2.5V, I

IN

o

C≤TJ≤125oC.

V

∆V

I

LOAD (MIN)

OUT

OUT

RLINE

RLOAD

/∆TI

OUT

GND

SC

θ

JC

=10mA, CIN=10µF, C

I

=10mA 1.188 1.2 1.212 V

OUT

10mA≤I

I

OUT

VIN=2.5V, 10mA≤I

OUT

VIN=2.5V

V

OUT

C

OUT

≤1A, 2.5V≤VIN≤13.2V 1.176 1.2 1.224 V

OUT

=10mA, 2.5V≤VIN≤13.2V 3.6 18 mV

=10mA 180

I

OUT

I

OUT

=0V (Note 2) 1.5 2.2 A

=10µF

=10µF, TJ=25oC, unless otherwise specified.

OUT

≤1A 5.4 27 mV

OUT

=750mA 12 25 mA

=1A 18 mA

=100mA,

OUT

TO-252-2 (1)/TO-252-2 (3) 7.8

SOT-223 29.7

µV/

15mA

400 µV

o

C/W

o

C

Note 2: VIN=V

OUT(NOMINAL)

+1V.

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Electrical Characteristics

AZ2940-1.8 Electrical Characteristics

Operating Conditions: V

The Boldface applies over -40

Parameter Symbol Condition Min Typ Max Unit

Output Voltage

Line Regulation V

Load Regulation V

Output Voltage
Temperature Coefficient

Dropout Voltage (Note 3)

Ground Current

Short Circuit Current I

Minimum Load Current I

Output Noise Voltage (rms) 10Hz to 100KHz, I

Thermal Resistance

=2.8V, I

IN

o

C≤TJ≤125oC.

V

∆V

V

I

LOAD (MIN)

OUT

OUT

RLINE

RLOAD

/∆TI

OUT

DROP

GND

SC

θ

JC

=10mA, CIN=10µF, C

I

=10mA 1.782 1.8 1.818 V

OUT

10mA≤I

I

OUT

VIN=2.8V, 10mA≤I

OUT

∆V

OUT

VIN=2.8V

V

OUT

C

OUT

≤1A, 2.8V≤VIN≤13.2V 1.764 1.8 1.836 V

OUT

=10mA, 2.8V≤VIN≤13.2V 3.6 18 mV

=10mA 36 180

I

=1%

I

I

I

OUT

OUT

OUT

OUT

=0V (Note 2) 1.5 2.2 A

=10µF

=10µF, TJ=25oC, unless otherwise specified.

OUT

≤1A 5.4 27 mV

OUT

=100mA 290 500 mV

=1A 330 750 mV

=750mA 12 25 mA

=1A 18 mA

=100mA,

OUT

TO-252-2 (1)/TO-252-2 (3) 7.8

SOT-223 29.7

15mA

400 µV

µV/

o

C/W

o

C

Note 2: VIN=V

OUT(NOMINAL)

+1V.

Note 3: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value

which is measured at V

+1V applied to VIN. In application, VIN should be no less than 2.5V.

OUT

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Electrical Characteristics (Continued)

AZ2940-2.5 Electrical Characteristics

Operating Conditions: V

The Boldface applies over -40

Parameter Symbol Condition Min Typ Max Unit

Output Voltage

Line Regulation V

Load Regulation V

Output Voltage
Temperature Coefficient

Dropout Voltage (Note 4)

Ground Current

Short Circuit Current I

Minimum Load Current I

Output Noise Voltage (rms) 10Hz to 100KHz, I

Thermal Resistance

=3.5V, I

IN

o

C≤TJ≤125oC.

V

∆V

V

I

LOAD (MIN)

OUT

OUT

RLINE

RLOAD

/∆TI

OUT

DROP

GND

SC

θ

JC

=10mA, CIN=10µF, C

I

=10mA 2.475 2.5 2.525 V

OUT

10mA≤I

I

OUT

VIN=3.5V, 10mA≤I

OUT

∆V

OUT

VIN=3.5V

V

OUT

C

OUT

≤1A, 3.5V≤VIN≤13.2V 2.45 2.5 2.55 V

OUT

=10mA, 3.5V≤VIN≤13.2V 5.0 25 mV

=10mA 50 250

I

=1%

I

I

I

OUT

OUT

OUT

OUT

=0V (Note 2) 1.5 2.2 A

=10µF

=10µF, TJ=25oC, unless otherwise specified.

OUT

≤1A 7.5 37.5 mV

OUT

=100mA 70 200 mV

=1A 280 550 mV

=750mA 12 25 mA

=1A 18 mA

=100mA,

OUT

TO-252-2 (1)/TO-252-2 (3) 7.8

SOT-223 29.7

15mA

400 µV

µV/

o

C/W

o

C

Note 2: VIN=V

OUT(NOMINAL)

+1V.

Note 4: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value

which is measured at V

+1V applied to VIN.

OUT

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Electrical Characteristics (Continued)

AZ2940-3.3 Electrical Characteristics

Operating Conditions: V

The Boldface applies over -40

Parameter Symbol Condition Min Typ Max Unit

Output Voltage

Line Regulation V

Load Regulation V

Output Voltage
Temperature Coefficient

Dropout Voltage (Note 4)

Ground Current

Short Circuit Current I

Minimum Load Current I

Output Noise Voltage (rms) 10Hz to 100KHz, I

Thermal Resistance

=4.3V, I

IN

o

C≤TJ≤125oC.

V

∆V

V

I

LOAD (MIN)

OUT

OUT

RLINE

RLOAD

/∆TI

OUT

DROP

GND

SC

θ

JC

=10mA, CIN=10µF, C

I

=10mA 3.27 3.3 3.33 V

OUT

10mA≤I

I

OUT

VIN=4.3V, 10mA≤I

OUT

∆V

OUT

VIN=4.3V

V

OUT

C

OUT

≤1A, 4.3V≤VIN≤13.2V 3.23 3.3 3.37 V

OUT

=10mA, 4.3V≤VIN≤13.2V 6.6 33 mV

=10mA 66 330

I

=1%

I

I

I

OUT

OUT

OUT

OUT

=0V (Note 2) 1.5 2.2 A

=10µF

=10µF, TJ=25oC, unless otherwise specified.

OUT

≤1A 9.9 50 mV

OUT

=100mA 70 200 mV

=1A 280 550 mV

=750mA 12 25 mA

=1A 18 mA

=100mA,

OUT

TO-220-3 4.4

TO-263-3 4.4

TO-252-2 (1)/TO-252-2 (3) 7.8

SOT-223 29.7

15mA

400 µV

µV/

o

C/W

o

C

Note 2: VIN=V

OUT(NOMINAL)

+1V.

Note 4: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal

value which is measured at V

+1V applied to VIN.

OUT

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Electrical Characteristics (Continued)

AZ2940-5.0 Electrical Characteristics

Operating Conditions: VIN=6V, I

Boldface applies over -40

o

C≤TJ≤125oC.

=10mA, CIN=10µF, C

OUT

=10µF, TJ=25oC, unless otherwise specified. The

OUT

Parameter Symbol Condition Min Typ Max Unit

Output Voltage

Line Regulation V

Load Regulation V

Output Voltage

V

∆V

OUT

RLINE

RLOAD

/∆T I

OUT

I

=10mA 4.95 5.0 5.05 V

OUT

10mA≤I

I

OUT

VIN=6V, 10mA≤I

OUT

≤1A, 6V≤VIN≤13.2V 4.90 5.0 5.10 V

OUT

=10mA, 6V≤VIN≤13.2V 10 50 mV

≤1A 15 75 mV

OUT

=10mA 100 500

µV/

Temperature Coefficient

=1%

I

=100mA 70 200 mV

OUT

I

=1A 280 550 mV

OUT

=750mA 12 25 mA

I

OUT

I

=1A 18 mA

OUT

15 mA

OUT

=100mA,

400 µV

o

C/W

Dropout Voltage (Note 4)

V

DROP

∆V

OUT

Ground Current

Short Circuit Current I

Minimum Load Current I

I

GND

SC

LOAD (MIN)

VIN=6V

V

=0V (Note 3) 1.5 2.2 A

OUT

Output Noise Voltage (rms) 10Hz to 100KHz, I

=10µF

C

OUT

TO-220-3 4.4

Thermal Resistance

θ

JC

TO-263-3 4.4

TO-252-2 (1)/TO-252-2 (3) 7.8

SOT-223 29.7

o

C

Note 2: VIN=V

OUT(NOMINAL)

+1V.

Note 4: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal

value which is measured at V

+1V applied to VIN.

OUT

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

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Typical Performance Characteristics

5.020

5.018

5.016

5.014

5.012

5.010

5.008

5.006

Output Voltage (V)

5.004

5.002

5.000
6 7 8 9 10 11 12 13 14

AZ2940-5.0

Input Voltage (V)

Figure 4. Line Regulation

25.0

22.5

20.0

17.5

15.0

12.5

10.0

7.5

Ground Current (mA)

5.0

2.5

0.0
0 250 500 750 1000

AZ2940-5.0

VIN=6V

TJ=25oC

Output Current (mA)

I

=10mA

OUT

TJ=25oC

5.0250

5.0225

5.0200

5.0175

5.0150

5.0125

5.0100

Output Voltage (V)

5.0075

5.0050

5.0025

5.0000
0 250 500 750 1000

AZ2940-5.0

VIN=6V

TJ=25oC

Output Current (mA)

Figure 5. Load Regulation

20

18

16

14

12

10

8

6

Ground Current (mA)

4

2

0

0246810121416

I

I

Input Voltage (V)

=100mA

OUT

=1A

OUT

TJ=25oC

Figure 6. Ground Current vs. Output Current

Figure 7. Ground Current vs. Input Voltage

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Typical Performance Characteristics (Continued)

500

450

400

350

300

250

200

150

Dropout Voltage (mV)

100

50

0

0 250 500 750 1000

AZ2940-5.0

Output Current (mA)

Figure 8. Dropout Voltage vs. Output Current

3.50

3.25

3.00

2.75

2.50

2.25

Ground Current (mA)

2.00

1.75

1.50

-25 0 25 50 75 100 125

Junction Temperature (oC)

AZ2940-5.0

VIN=6V

I

=500mA

OUT

TJ=25oC

0.37

0.36

0.35

0.34

0.33

0.32

0.31

0.30

Ground Current (mA)

0.29

0.28

0.27

-25 0 25 50 75 100 125

AZ2940-5.0

VIN=6V

I

=10mA

OUT

Junction Temperature (oC)

Figure 9. Ground Current vs. Junction Temperature

10.0

9.5

9.0

8.5

8.0

Ground Current (mA)

7.5

7.0

6.5

6.0

5.5

5.0

-25 0 25 50 75 100 125

Junction Temperature (oC)

AZ2940-5.0

VIN=6V

I

=1A

OUT

Figure 10. Ground Current vs. Junction Temperature

Figure 11. Ground Current vs. Junction Temperature

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Typical Performance Characteristics (Continued)

500

475

450

425

400

375

350

325

300

Dropout Voltage (mV)

275

250

225

200

-25 0 25 50 75 100 125

AZ2940-5.0

I

OUT

=750mA

Junction Temperature (oC)

Figure 12. Dropout Voltage vs. Junction Temperature

5.05

5.04

5.03

5.02

5.01

5.00

4.99

Output Voltage (V)

4.98

4.97

4.96

4.95

-25 0 25 50 75 100 125

AZ2940-5.0

Junction Temperature (oC)

VIN=6V

I

=10mA

OUT

500

475

450

425

400

375

350

325

300

Dropout Voltage (mV)

275

250

225

200

AZ2940-5.0

I

=1A

OUT

-25 0 25 50 75 100 125

Junction Temperature (oC)

Figure 13. Dropout Voltage vs. Junction Temperature

100

C

=2.2µF

OUT

=5V

V

10

1

Output Capacitor ESR (Ω)

0.1

Stable Range

Unstable Range

0.01
0 20406080100

Output Current (mA)

T

OUT

=25OC

A

Figure 14. Output Voltage vs. Junction Temperature

Figure 15. Output Capacitor ESR vs. Output Current

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

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Typical Performance Characteristics (Continued)

100

C

=10µF

OUT

=5V

V

10

1

0.1

Output Capacitor ESR (Ω)

0.01
0 200 400 600 800 1000

Stable Range

Unstable Range

Output Current (mA)

OUT

T

A

=25OC

Figure 16. Output Capacitor ESR vs. Output Current

0.4

0.2

0

(0.2V/Div)

OUT

-0.2

AZ2940-5.0
C

=47µF

OUT

∆V

(0.2V/Div)

OUT

∆V

(0.5A/Div)

I

(0.02V/Div)

OUT

∆V

OUT

0.06

0.04

0.02

0.4

0.2

-0.2

0.5

-0.5

AZ2940-5.0
C

=10µF

OUT

0

1

0

Time (200µs/Div)

Figure 17. Load Transient

AZ2940-5.0

I

=10mA

OUT

0

(0.5A/Div)

OUT

I

1

0.5

0

-0.5

Time (200µs/Div)

Figure 18. Load Transient

(0.5V/Div)

IN

∆V

1

0.5

0

-0.5

Time (200µs/Div)

Figure 19. Line Transient

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Typical Performance Characteristics (Continued)

50

45

40

35

30

25

20

15

Power Dissipation (W)

10

5

0

-25 0 25 50 75 100 125

Package:TO-220-3

45*43mm2 Heatsink
No Heatsink

Case Temperature (oC)

Figure 20. Power Dissipation vs. Case Temperature

50

45

40

35

30

25

20

15

Power Dissipation (W)

10

5

0

-25 0 25 50 75 100 125

Case Temperature (oC)

Package:TO-263-3

45*43mm2 Heatsink
No Heatsink

50

45

40

35

30

25

20

15

Power Dissipation (W)

10

5

0

-25 0 25 50 75 100 125

Package:TO-252-2 (1)/TO-252-2 (3)

45*43mm2 Heatsink
No Heatsink

Case Temperature (oC)

Figure 21. Power Dissipation vs. Case Temperature

Figure 22. Power Dissipation vs. Case Temperature

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

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Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Typical Application

Note: C

is required if regulator is located far from power supply filter and is recommended to be 0.47µF or greater. To main-

IN

tain stability, C

1

V

IN

VIN V

OUT

3

V

OUT

AZ2940

+

C

IN

GND

2

Figure 23. Typical Application of AZ2940

is recommended to be 2.2µF or greater. The ESR of this capacitor is critical, please see curve.

OUT

+

C

OUT

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

16

Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Mechanical Dimensions

TO-220-3 Unit: mm(inch)

φ

1.500(0.059)

1.160(0.046)

1.760(0.069)

60

9.660(0.380)

10.660(0. 420)

°

φ

3.560(0.140)

4.060(0.160)

2

.

8

5

8

3

.

3

)

)

5

5

3

7

3

3

.

.

0

0

(

(

0

0

2

2

5

5

.

.

8

9

0.381(0.015)

0

2

)

(

0

0

.

1

0

(

0

3

)

3

.

1

)
3
7
0

.
0

(
0
5
8

.
1

)

)

0

0

5

6

6

5

.

.

0

0

(

(

0

0

1

3

5

2

.

.

6

4
1

)

)

8

2

9

9

0

1

.

.

1

1

(

(

0

0

8

8

8

2

.

.

7

0

2

3

1

3

°

0.550(0.022)

1.350(0.053)

0.200(0.008)

3.560(0.140)

4.820(0.190)

7

°

2.080(0.082)

2.880(0.113)

7

°

0.813(0.032)

6

0

°

2.540(0.100)

3

8

6

(

0

.

7

0.381(0.015)

2.540(0.100)

4

.

3

5

)

0.356 (0.014)

0.610(0.024)

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

17

Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Mechanical Dimensions (Continued)

TO-263-3 Unit: mm(inch)

1

.

0

(

0

7

0

.

4

0

2

8

.

4

7

0

°

)

)
0

0

8

4

3

3

.

.

0

0

(

(
0

0

5

4

6

6

.

.

9

8

2.540(0.100)

)

0

6

)

0

9

1

.

0

(

9.650(0.380)

10.290(0.405)

8.840(0.348)

3°

1.270(0.050)

1.390(0.055)

1

4
5

1

1.150(0.045)

1.390(0.055)

0.510(0.020)

0.990(0.039)

2.540(0.100)

1.150(0.045)

1.390(0.055)

7°

0.020(0.001)

0.250(0.010)

2.640(0.104)

)

1

8

5

.

0

(

0

6

7

.

2

6

.

0

(

0

4

7

.

)

0

)

)

4

6

9

0

0

1

.

.

0

0

(

(
0
9
3

.
2

3°

0

9

6

.

2

0.380(0.015)

0°
6°

2.700(0.106)

0.360(0.014)

0.400(0.016)

7°

0

.

0

(

0

0

2

.

2

2

°

8

°

2.540(0.100)

7

8

)

7.420(0.292)

)
0
2
2

.
0

(
0
0
6

.
5

7.980(0.314)

2.540(0.100)

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

18

Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Mechanical Dimensions (Continued)

SOT-223 Unit: mm(inch)

6.300(0.248)

6.700(0.264)

6.700(0.264)

.

2.900(0.114)

3.100(0.122)

0.900(0.035)

MIN

0.250(0.010)

7.300(0.287)

3.300(0.130)

3.700(0.146)

0

0

1

0

.

0

(

0

5

2

0

.

0

(

0

5

.3

)

0

)

4

1

1.750(0.069)
TYP

2.300(0.091)

1.500(0.059)

1.700(0.067)

TYP

0.020(0.001)

0.100(0.004)

4.500(0.177)

4.700(0.185)

0.610(0.024)

0.810(0.032)

1.520(0.060)

1.800(0.071)

0°

10°

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

19

Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Mechanical Dimensions (Continued)

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

6.450(0.254)

6.650(0.262)

5.200(0.205)

1.650(0.065)

0.900(0.035)

5.400(0.213)

1.350(0.053)

9.500(0.374)

0.600(0.024)

9.900(0.390)

0.450(0.018)

0.580(0.023)

0.000(0.000)

0.127(0.005)
5°

2.200(0.087)

2.400(0.094)

8

°

5°

5.450(0.215)

4.300(0.169)

5.400(0.213)

6.250(0.246)

4.800(0.189)

6.500(0.256)

2.300TYP

4.500(0.177)

4.700(0.185)

0.700(0.028)

0.900(0.035)

0.500(0.020)

0.700(0.028)

3°
4°

0.450(0.018)

0.580(0.023)

2.550(0.100)

1.400(0.055)

1.780(0.070)

2.900(0.114)

3.800REF(0.150REF)

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

20

Data Sheet

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940

Mechanical Dimensions (Continued)

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

6.500(0.256)

6.700(0.264)

0.900(0.035)

1.250(0.049)

6.000(0.236)

6.200(0.244)

1.800REF

0.720(0.028)

0.900(0.035)

2.286(0.090)
BSC

5.130(0.202)

5.460(0.215)

5

9

1.29±0.1

0.150(0.006)

0.750(0.030)

0.720(0.028)

0.850(0.033)

2.200(0.087)

2.380(0.094)

4.700REF

0.470(0.019)

0.600(0.024)

5

9

0

8

0.900(0.035)

1.100(0.043)

3

7

5.250REF

0

0.600(0.024)

1.000(0.039)

8

9.800(0.386)

10.40(0.409)

2.900REF

1.400(0.055)

1.700(0.067)

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

21

BCD Semiconductor Manufacturing Limited

IMPORTANT NOTICE

IMPORTANT NOTICE

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any

cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any

particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or

of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or

other rights nor the rights of others.

other rights nor the rights of others.

http://www.bcdsemi.com

MAIN SITE

MAIN SITE

- Headquarters

BCD Semiconductor Manufacturing Limited

BCD Semiconductor Manufactur ing Limited

- Wafer Fab

No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China

Shanghai SIM-BCD Semiconductor Manufacturing Limited

Tel: [phone], Fax: [phone]

800, Yi Shan Road, Shanghai 200233, China
Tel: [phone], Fax: [phone]

REGIONAL SALES OFFICE

Shenzhen Office

REGIONAL SALES OFFICE

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office

Shenzhen Office

Unit A Room 1203, Skyworth Bldg., Gaoxin Ave.1.S., Nanshan District, Shenzhen,

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office

China

Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office

Tel: [phone]

Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China

Fax: [phone]

Tel: [phone]
Fax: [phone]

- Wafer Fab

BCD Semiconductor Manufacturing Limited

Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.

- IC Design Group

800 Yi Shan Road, Shanghai 200233, China

Advanced Analog Circuits (Shanghai) Corporation

Tel: [phone], Fax: [phone]

8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China
Tel: [phone], Fax: [phone]

Taiwan Office
BCD Semiconductor (Taiwan) Company Limited

Taiwan Office

4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,

BCD Semiconductor (Taiwan) Company Limited

Tai wan

4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,

Tel: [phone]

Taiwan

Fax: [phone]

Tel: [phone]
Fax: [phone]

USA Office
BCD Semiconductor Corp.

USA Office

30920 Huntwood Ave. Hayward,

BCD Semiconductor Corporation

CA 94544, USA

30920 Huntwood Ave. Hayward,

Tel : [phone]

CA 94544, U.S.A

Fax: [phone]

Tel : [phone]
Fax: [phone]