PL7812XE3 - CYStech Electronics Corp.

CYStech Electronics Corp. Spec. No. : C525E3

Issued Date : 2003.04.02

Revised Date :

Page No. : 1/3

PL7812E3 CYStek Product Specification

3-TERMINAL POSITIVE VOLTAGE REGULATOR

PL7812XE3

Description

The PL7812XE3 series of three-terminal positive regulators are

available in the TO-220AB package. These regulators can provide

local on -card regulation, eliminating the distribution problems

associated with single point regulation. Each employs internal current

limiting, thermal shutdown and safe operating area protection, making it essentially indestructible.

If adequate heat sinking is provided, they can deliver over 1A output current. Although designed

primarily as fixed voltage regulators, these devices can be used with external components to

obtain adjustable voltages and currents.

PL7812XE3 is characterized for operation from 0°C to +125°C, and if operating temperature is

always high, please refer to the power dissipation curve.

Absolute Maximum Ratings (Ta=25°C)

• Input Voltage ....................................................................................................................... 35 V

• Total Power Dissipation .................................................................................... Internally limited

• Operating Temperature Range .......................................................................... 0 °C to +125 °C

• Maximum Junction Temperature ..................................................................................... 125 °C

• Storage Temperature Range .......................................................................... -55 °C to +150 °C

• Lead Temperature (Soldering 10S) ................................................................................. 230 °C

Typical Application Schematic Diagram

6.3V

3.4K

200

10K

200

0.3

20pF

12.1K

1.2

1.9K

30K

VREF

Input

Output

GND

PL7812 Vout Vin

C1 C2

Note:

C1 and C2 are required if regulator is

located far from power supply filter

and load, or oscillation may induced

on the loop.

TO-220AB

CYStech Electronics Corp. Spec. No. : C525E3

Issued Date : 2003.04.02

Revised Date :

Page No. : 2/3

PL7812E3 CYStek Product Specification

Electrical Characteristics

Vin=19V, Io=500mA, 0°C≤Tj≤125°C (unless otherwise noted)

PL7812A

Symbol Parameter Conditions Min Typ Max Units

Tj=25°C 11.64 12 12.36

Vo Output Voltage 14.5V≤Vin≤27V 11.64 12 12.36 V

Tj=25°C, 14.5V≤Vin≤30V - 20 120

∆Vo Line Regulation Tj=25°C, 16V≤Vin≤22V - 16 60

5mA≤Io≤1.5A - - 120

∆Vo Load Regulation 250mA≤Io≤750mA - - 60

IQ Quiescent Current

Io≤1A, Tj=25°C - 5.5 8 mA

5mA≤Io≤1A - - 0.5

∆IQ Quiescent Current

Change 14.5V≤Vin≤30V - - 1.3

Vn Output Noise Voltage Ta= 25 °C, 10Hz≤f≤100KHz - - 200 uV

RR Ripple Rejection 15V≤Vin≤25V, f=120Hz - 68 - dB

VD Dropout Voltage Tj=25°C, Io=1A - 2 - V

Isc Short Circuit Current Tj=25°C - 1.5 - A

Ipk Peak Output Current Tj=25°C 1.7 - - A

∆Vo / ∆T Average Tc of Vout 0°C≤Tj≤+125°C, Io=5mA - -0.8 -

mV/°C

PL7812B

Symbol Parameter Conditions Min Typ Max Units

Tj=25°C 11.5 12 12.5

Vo Output Voltage 14.5V≤Vin≤27V 11.4 12 12.6 V

Tj=25°C, 14.5V≤Vin≤30V - 44 240

∆Vo Line Regulation Tj=25°C, 16V≤Vin≤22V - 16 120

5mA≤Io≤1.5A - 45 240

∆Vo Load Regulation 250mA≤Io≤750mA - 16 120

IQ Quiescent Current

Io≤1A, Tj=25°C - 5.5 8 mA

5mA≤Io≤1A - - 0.5

∆IQ Quiescent Current

Change 14.5V≤Vin≤30V - - 1.3

Vn Output Noise Voltage Ta= 25 °C, 10Hz≤f≤100KHz - - 300 uV

RR Ripple Rejection 15V≤Vin≤25V, f=120Hz 62 73 - dB

VD Dropout Voltage Tj=25°C, Io=1A - 2.5 - V

Isc Short Circuit Current Tj=25°C - 1.5 - A

Ipk Peak Output Current Tj=25°C 1.7 - - A

∆Vo / ∆T Average Tc of Vout 0°C≤Tj≤+125°C, Io=5mA - -0.8 -

mV/°C

CYStech Electronics Corp. Spec. No. : C525E3

Issued Date : 2003.04.02

Revised Date :

Page No. : 3/3

PL7812E3 CYStek Product Specification

TO-220AB Dimension

*: Typical

Inches Millimeters Inches Millimeters

DIM Min. Max. Min. Max.

A 0.2197 0.2949 5.58 7.49 I - *0.1508 - *3.83

B 0.3299 0.3504 8.38 8.90 K 0.0295 0.0374 0.75 0.95

C 0.1732 0.185 4.40 4.70 M 0.0449 0.0551 1.14 1.40

D 0.0453 0.0547 1.15 1.39 N - *0.1000 - *2.54

E 0.0138 0.0236 0.35 0.60 O 0.5000 0.5618 12.70 14.27

G 0.3803 0.4047 9.66 10.28 P 0.5701 0.6248 14.48 15.87

H -

*0.6398 - *16.25

Notes: 1.Controlling dimension: millimeters.

2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.

3.If there is any question with packing specification or packing method, please contact your local CYStek sales office.

Material:

• Lead: 42 Alloy ; solder plating

• Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0

Important Notice:

• All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek.

• CYStek reserves the right to make changes to its products without notice.

• CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.

• CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.

A B

Style: Pin 1.Vin 2.Ground 3.Vout

4.Ground

3-Lead TO-220AB Plastic Package

CYStek Package Code: E3

Marking:

7812