Diodes AZ78LXX User Manual

Data Sheet

3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX

General Description

The AZ78LXX series are three terminal positive regu­lators with several fixed output voltages. These regula­tors can provide local on card regulation, eliminating
the distribution problems associated with single point
regulation. The AZ78LXX can be used in logic sys­tems, instrumentation, HiFi, and other solid state elec­tronic equipment. When used as a Zener diode/resistor
combination replacement, the AZ78LXX usually
results an effective output impedance improvement of
two orders of magnitude, and lower quiescent current.

With adequate heat sinking the AZ78LXX can deliver
100mA output current. Current limiting is included to
limit the peak output current to a safe value. Thermal
protection is also provided. If internal power
dissipation becomes too high for the heat sinking
provided, the thermal shutdown circuit takes over
preventing the IC from overheating.

The AZ78LXX are available in the plastic TO-92
(bulk or ammo packing), SOT-223 and SOT-89 pack­ages.

Features

· Output Current up to 100mA

· Fixed Output Voltages of 5V, 8V, 9V and 12V

· Output Voltage Tolerances of ±5% over the Full

Temperature Range

· Internal Short Circuit Current-limiting

· Internal Thermal Overload Protection

· No External Components

Applications

· High Efficiency Linear Regulator

· Post Regulation for Switching Supply

· Microprocessor Power Supply

· Mother Board I/O Power Supply

TO-92(Bulk Packing)

SOT-223

Figure 1. Package Types of the AZ78LXX

Nov. 2012 Rev. 2. 2 BCD Semiconductor Manufacturing Limited

TO-92(Ammo Packing)

SOT-89

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Data Sheet

INPUT

OUTPUT

GND

1

2

3

4

GND

1

2

3

INPUT

OUTPUT

GND

GND

4

1

2

3

INPUT

OUTPUT

GND

1

2

3

INPUT

OUTPUT

GND

3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX

Pin Configuration

Z Package

(TO-92(Bulk Packing))

H Package

(SOT-223)

Z Package

(TO-92(Ammo Packing))

R Package

(SOT-89)

Connect pin 4 to pin 2 or leave

electrically isolated pin 4

Figure 2. Pin Configuration of the AZ78LXX (Top View)

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Data Sheet

3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX

Functional Block Diagram

3 (8)

INPUT

1

OUTPUT

Figure 3. Functional Block Diagram of the AZ78LXX

2, 4 (2, 3, 6, 7)

A(B)
A for 3-pin
B for 8-pin

GND

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Data Sheet

3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX

Ordering Information

Package

TO-92

SOT-89

SOT-223

Circuit Type

Output Voltage

05: 5V

08: 8V
09: 9V

12: 12V

Te mp er a tu re

Range

-40 to 125

-40 to 125

-40 to 125

o

C

o

C

o

C

AZ78L

-

E1: Lead Free
G1: Green

TR: Tape and Reel or Ammo
Blank: Tube or Bulk

Package

Z: TO-92
R: SOT-89
H: SOT-223

Part Number Marking ID

Lead Free Green Lead Free Green

AZ78L05Z-E1 AZ78L05Z-G1 AZ78L05Z-E1 AZ78L05Z-G1 Bulk

AZ78L05ZTR-E1 AZ78L05ZTR-G1 AZ78L05Z-E1 AZ78L05Z-G1 Ammo

AZ78L08Z-E1 AZ78L08Z-G1 AZ78L08Z-E1 AZ78L08Z-G1 Bulk

AZ78L08ZTR-E1 AZ78L08ZTR-G1 AZ78L08Z-E1 AZ78L08Z-G1 Ammo

AZ78L09Z-E1 AZ78L09Z-G1 AZ78L09Z-E1 AZ78L09Z-G1 Bulk

AZ78L09ZTR-E1 AZ78L09ZTR-G1 AZ78L09Z-E1 AZ78L09Z-G1 Ammo

AZ78L12Z-E1 AZ78L12Z-G1 AZ78L12Z-E1 AZ78L12Z-G1 Bulk

AZ78L12ZTR-E1 AZ78L12ZTR-G1 AZ78L12Z-E1 AZ78L12Z-G1 Ammo

AZ78L05RTR-E1 AZ78L05RTR-G1 E78A G78A Tape & Reel

AZ78L08RTR-E1 AZ78L08RTR-G1 E78B G78B Tape & Reel

AZ78L09RTR-E1 AZ78L09RTR-G1 E78C G78C Tape & Reel

AZ78L12RTR-E1 AZ78L12RTR-G1 E78D G78D Tape & Reel

AZ78L05HTR-E1 AZ78L05HTR-G1 EH78A GH78A Tape & Reel

AZ78L08HTR-E1 AZ78L08HTR-G1 EH78B GH78B Tape & Reel

AZ78L09HTR-E1 AZ78L09HTR-G1 EH78C GH78C Tape & Reel

AZ78L12HTR-E1 AZ78L12HTR-G1 EH78D GH78D Tape & Reel

Packing Type

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

3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Input Voltage V

Operating Junction Temperature T

Lead Temperature (Soldering, 10sec) T

Power Dissipation (T

Storage Temperature Range T

ESD (Human Body Model) ESD 2000 V

ESD (Machine Model) ESD 200 V

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to

=25oC)

A

IN

J

LEAD

P

D

STG

TO-92 0.65

SOT-223 0.7

SOT-89 0.65

20 V

150

260

-65 to 150

o

o

W

o

C

C

C

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

AZ78L05

AZ78L08 18

V

IN

15

V

AZ78L09 18

AZ78L12 18

Operating Junction Temperature T

-40 125

J

o

C

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Data Sheet

3-TERMINAL POSITIVE LINEAR REGULATOR AZ78LXX

Electrical Characteristics
AZ78L05 Electrical Characteristics

ΔV

o

C, Bold typeface applies over -40oC to 125oC, I

4.8 5 5.2

OUT

RLINE

RLOAD

DROP

LIMIT

Q

Q

O

PK

/ ΔTI

OUT

7.0V ≤ V

1.0mA ≤ I

≤ 15V

IN

≤ 40mA (Note 2)

OUT

7.0V ≤ VIN≤ 15V

1.0mA ≤ I

OUT

≤ 100mA

TJ=25oC

I

=0 3 5 mA

OUT

8.0V ≤ VIN≤ 15V

1.0mA ≤ I

OUT

≤ 40mA

10Hz ≤ f ≤ 100kHz (Note 3)

f=120Hz, 8.0V ≤ V

= 5.0mA 0.65

OUT

IN

≤ 15V

4.75 5.25

=40mA, C

OUT

V

18 75 mV

20 60 mV

1.6 V

150 mA

1.0 mA

0.1

40 μV

47 62 dB

150 mA

mV/

Limits in standard typeface are for TJ=25

=0.33μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage V

Line Regulation V

Load Regulation V

Dropout Voltage V

Current Limit I

Quiescent Current I

Quiescent Current Change ΔI

Output Noise Voltage N

Ripple Rejection PSRR

Peak Output Current I

Average Temperature Coefficient of
Output Voltage

=0.1μF, VIN=10V, unless otherwise specified.

OUT

IN

o

C

Minimum Value of Input Voltage
Required to Maintain Line Regula-

V

IN

6.7 7

V

(Min)

tion

TO-92 81

Thermal Resistance

θ

SOT-89 29.8

JC

o

C/W

SOT-223 71

Note 2: Power Dissipation ≤ 0.6W

Note 3: Recommended minimum load capacitance of 0.01μF to limit high frequency noise.

Nov. 2012 Rev. 2. 2 BCD Semiconductor Manufacturing Limited

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