MC1723BD 查看數據表（PDF） - ON Semiconductor

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MC1723BD

Voltage Regulator

ON Semiconductor 

Voltage Regulator

The MC1723C is a positive or negative voltage regulator designed to

deliver load current to 150 mAdc. Output current capability can be increased

to several amperes through use of one or more external pass transistors.

MC1723C is specified for operation over the commercial temperature range

(0° to +70°C).

• Output Voltage Adjustable from 2.0 Vdc to 37 Vdc

• Output Current to 150 mAdc Without External Pass Transistors

• 0.01% Line and 0.03% Load Regulation

• Adjustable Short Circuit Protection

Order this document by MC1723C/D

MC1723C

VOLTAGE REGULATOR

SEMICONDUCTOR

TECHNICAL DATA

Figure 1. Representative Schematic Diagram

VCC VC

12

11

P SUFFIX

PLASTIC PACKAGE

CASE 646

500

6.2V

15k

25k

1.0k

1.0k

15k

100

5.0pF

30k

6.2V

300

5.0k

20k

150

6 Vref

57

Noninverting

Input

VEE 4

Inverting

Input

Vz

9

6.2V

10

VO

13

Compensation

2 Current

Limit

Current

3 Sense

D SUFFIX

PLASTIC PACKAGE

CASE 751A

(SO–14)

ORDERING INFORMATION

Device

Alternate

Operating

Temperature

Range

Package

MC1723CD

–

MC1723CP LM723CN

µA723PC

SO–14

TA = 0° to +70°C Plastic DIP

Figure 2. Typical Circuit Connection

12

Vin

11

6

R3

5

Cref

(7 < VO < 37)

10

2

3

MC1723C

4

C1

13

7

RSC

100pF

VO

R1

R2

^ VO

7

R1 + R2

R2

ISC =

Vsense

RSC

For best results 10 k < R2 < 100 k

For minimum drift R3 = R1 | | R2

=

0.66

RSC

at TJ = + 25°C

Figure 3. Typical NPN Current Boost Connection

Vin = 20Vdc

0.1µF

2N3055 or Equiv

12

10

11

2

3

MC1723C

6

4

5

C1

13

7

RSC = 0.33

VO = +15Vdc

IL = 2Adc max

12k

100pF

10k

MOTOROLA ANALOG IC DEVICE DATA

© Motorola, Inc. 1996

Rev 5

1

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