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Philips Semiconductors Product specification

A723/723CPrecision voltage regulator

11994 Aug 31 853-1063 13721

DESCRIPTIONThe A723/A723C is a monolithic precision voltage regulator

capable of operation in positive or negative supplies as a series,

shunt, switching, or floating regulator. The 723 contains a

temperature-compensated reference amplifier, error amplifier, seriespass transistor, and current limiter, with access to remote shutdown.

FEATURES

Positive or negative supply operation

Series, shunt, switching, or floating operation

0.01% line and load regulation

Output voltage adjustable from 2V to 37V

Output current to 150mA without external pass transistor

A723 MIL-STD-883A, B, C available

PIN CONFIGURATION

D,F, N Packages

1

2

3

4

5

6

7 8

14

13

12

11

10

9

NC

CURRENT LIMIT

CURRENT SENSE

INVERTING INPUT

NON-INVERTING INPUT

V

VREF

NC

FREQUENCY COMPENS.

NC

V+

VC

VOUT

VZ

SL00503

Figure 1. Pin Configuration

ORDERING INFORMATION

DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #

14-Pin Ceramic Dual In-Line Package (CERDIP) -55C to 125C A723F 0581B

14-Pin Plastic Dual In-Line Package (DIP) 0 to 70C A723CN SOT27-1

14-Pin Plastic Small Outline (SO) Package 0 to 70C A723CD SOT108-1

EQUIVALENT CIRCUIT

TEMPERATURECOMPENSATEDZENER

7 V

VOLTAGEREFERENCEAMPLIFIER

INVERTINGINPUT4

ERROR AMP

NON INVERTINGINPUT

+

CURRENTLIMIT

2 3 CURRENTSENSE

FREQUENCYCOMPENSATION

V+12 13 11

SERIES PASSTRANSISTOR

10

9

VC

VZ

VOUT8

VREF

VIN

SL00504

Figure 2. Equivalent Circuit

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Philips Semiconductors Product specification

A723/723CPrecision voltage regulator

1994 Aug 31 2

ABSOLUTE MAXIMUM RATINGS

SYMBOL PARAMETER RATING UNIT

Pulse voltage from V+ to V- (50ms) 50 V

Continuous voltage from V+ to V- 40 VInput-output voltage differential 40 V

VDIFF Error amplifier maximum input differential voltage 5 V

VCM Error amplifier non-inverting input (Pin 5) to -V (Pin 7) 8 V

IOUT Maximum output current 150 mA

Current from VREF 15 mA

Current from VZ 25 mA

PMAX Maximum power dissipation TA=25C (still-air)1

F package 1190 mW

N package 1420 mW

D package 1040 mW

TA Operating ambient temperature range

A723

A723C

-55 to +125

0 to 70

C

C

TSTG Storage temperature range -65 to +150 C

TSOLD Lead soldering temperature (10sec max) 300 C

NOTES:1. The following derating factors should be applied above 25C

F package at 9.5mW/CN package at 11.4mW/CD package at 8.3mW/C

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Philips Semiconductors Product specification

A723/723CPrecision voltage regulator

1994 Aug 31 3

DC ELECTRICAL CHARACTERISTICSTA=25C, unless otherwise specified.

1

A723 A723C

Min Typ Max Min Typ Max

VIN=12V to VIN=15V 0.01 0.1 0.01 0.1

RLINE VIN=12V to VIN=40V 0.02 0.2 0.1 0.5

OUT

VRLOAD Load regulation2 IL=1mA to IL=50mA 0.03 0.15 0.03 0.2 %VOUT

f=50Hz to 10kHz, CREF=0 74 74

f=50Hz to 10kHz, CREF=5F 86 86

IOS Short-circuit current RSC=10, VOUT=0 65 65 mA

VREF Reference voltage IREF=0.1mA 6.95 7.15 7.35 6.80 7.15 7.50 V

VREF(LOAD)Reference voltage

change with loadIREF=0.1mA to 5mA 20 20 mV

BW=100Hz to 10kHz, CREF=0 20 20

NOISE BW=100Hz to 10kHz, CREF=5F 2.5 2.5

RMS

S Long-term stability Tj=Tjmax.

TA=25C for end point

measurment 0.1 0.1 %1000 hrs.

ISCD Standby current drain IL=0, VIN=30V 2.3 3.5 2.3 4.0 mA

VIN Input voltage range 9.5 40 9.5 40 V

VOUT Output voltage range 2.0 37 2.0 37 V

VDIFFInput-output voltage

differential3.0 38 3.0 38 V

The following specifications apply over the operating temperature ranges.

VRLINE Line regulation VIN=12V to VIN=15V 0.3 0.3 %VOUT

VRLOAD Load regulation IL=1mA to IL=50mA 0.6 0.6 %VOUT

TC

Average temperature

coefficient of output

voltage

0.002 0.015 0.003 0.015 %/ C

NOTES:1. VIN=V+=VC=12V, V-=0V, VOUT=5V, IL=1mA, RSC=0, C1=100pF, CREF=0 and divider impedance as seen by error amplifier10k.2. The load and line regulation specifications are for constant junction temperature. Temperature drift effects must be taken into account

separately when the unit is operating under conditions of high dissipation.

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Philips Semiconductors Product specification

A723/723CPrecision voltage regulator

1994 Aug 31 4

TYPICAL PERFORMANCE CHARACTERISTICS

Standby Current Drainas a Function of Input Voltage

Maximum Load Currentas a Function of

Input-Output VoltageDifferential

Load RegulationCharacteristics with

Current Limiting

Current LimitingCharacteristics as aFunction of Junction

Temperature

Maximum Load Currentas a Function of

Input-Output VoltageDifferential

Load RegulationCharacteristics Without

Current Limiting

Load Transient ResponseLine Regulation as a

Function of Input-OutputVoltage Differential

Output Impedance asa Function of Frequency

5.0

4.0

3.0

2.0

1.0

00 10 20 30 40 50

INPUT VOLTAGE V

STANDBYCURRENT

TA = +70C

TA = +125C

VOUT = VREFIL = 0

TA = 55C

TA = 0C

TA = +25C

0.8

0.7

0.6

0.5

0.4

0.350 0 +50 +100 +150

200

160

120

80

40

0CURREN

TLIMITSENSEVOLTAGE

V

JUNCTION TEMPERATURE C

SENSE VOLTAGE

LIMIT CURRENT

RSC = 10

LIMIT CURRENTRSC = 5

200

TA = +25C

TA = 70C

TA = +125C

160

120

80

40

0

TJMAX = 150C

RTH = 150C/W

PSTANDBY = 60mWMETAL CAN PACKAGE(NO HEAT SINK)

0 10 20 30 40 50

(VIN VOUT) V

I

mA

LMAX

200

160

120

80

40

00 10 20 30 40 50

I

mA

LMAX

TA = +25C

TA = 70C

TA = +125C

TJMAX = 150C

RTH = 111C/W

PSTANDBY = 60mWDIP PACKAGE(NO HEAT SINK)

(VIN VOUT) V

LIM

ITINGCURRENTmA

TA = 55C

TA = +25C

TA = +70C

VOUT = 5V, VIN = +12V

RSC = 10

TA = +125C

TA = 0C

+0.1

0

0.1

0.2

0.3

0.420 40 60 80 1000

OUTPUT CURRENT mA

REGULATION

%VOUT

+0.05

0

0.05

0.1

0.15

0.2

0

20 40

60 80 100

OUTPUT CURRENT mA

TA = 70C

TA = +25C

TA = 0C

TA = +125C

TA = +55C

VOUT = 5V

RSC = 0VIN = +12V

R

EGULATION

%VOUT

+0.3

+0.2

+0.1

0

0.1

0.25 5 15 25 35 45

OUTPUTIMPED

ANCE

VOUT = +5V

RSC = 0

TA = +25C

VIN = +3VIIL = 1mA

REGULATION%VOUT

(VIN VOUT) V

VOUT = 5V

IL = 40mAVIN = +12V

4.0

RSC = 0

0

4.0

8.05 5 15 25 35 45

OUTPUT VOLTAGE

OUTPUTVOLTAGEDEV

IATIONmV

LOAD CURRENT+10

0

TIME s

10

1.0

0.1

.01

100 1k 10k 100k 1M

FREQUENCY Hz

VO = +5V

RSC = 0TA = +25C

VIN = +12V

IIL = 50mA

C1 = 0

C1 = 1F

LOADDEVIATION

mA

SL00505

Figure 3. Typical Performance Characteristics

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Philips Semiconductors Product specification

A723/723CPrecision voltage regulator

1994 Aug 31 5

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(VIN VOUT) V

Line Transient ResponseLoad Regulation as a

Function of Input-OutputVoltage Differential

Current Limiting

Characteristics4.0

2.0

0

OUTPUTVOLTAGEDEVIATIONmV

INPUT VOLTAGE

OUTPUT VOLTAGE

0

2.0

4.05 5 15 25 35 45

6.0

TIME s

+0.2

+0.1

0

0.1

0.2

0.3

REGULATION%VOUT

5 5 2515 35 45

VO = +5V

RSC = 0TA = +25C

VIN = +12V

IIL = mA TO IL = 50mA

1.2

0

OUTPUT CURRENT mA

OUTPUTVOLTAGEDEVIATION

V

1.0

0.8

0.6

0.4

0.2

0

20 40 60 80 100

TA = 0CTA = 55C

TA = +25C

TA = +70C

TA = +125C

VO = +5V

RSC = 10

VIN = +12V

INPUTVOLTAGEDEVIATIONVOLTS

SL00506

Figure 4. Typical Performance Characteristics (cont.)

TYPICAL APPLICATIONS

NOTES:

VOUT

+ VREF x R2R1 ) R2

R3 +R1 R2

R1 ) R2for minimum temperature drift

VOUT

+ VREF2

x

R1 ) R2R1

; R3 + R4NOTE:

Low Voltage Regulator (VOUT = 2 to 7V) Negative Voltage Regulator

CREF R2

R1

COMPV

100pF

C1

R3

RSC

VCV+

VIN

REGULATED

OUTPUT

VREF

VOUT

CL

CS

INVN.I.

VREF VOUT

CL

CS

INVN.I.

VZ

R4

R3 COMP

100pF

C1

REGULATED

OUTPUT

R1

R2V+ VCR5

T1

SL00507

Figure 5. Typical Applications

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Philips Semiconductors Product specification

A723/723CPrecision voltage regulator

1994 Aug 31 6

TYPICAL APPLICATIONS (Continued)

IKNEE

+ VOUT R3R

SCR4

)V

SENSE(R3 ) R4)

RSC

R4

VOUT

+ VREF

XR1 ) R2

R4

ISHORT CKT

+ VSENSER

SCX

R3 ) R4R

4

R4R3

+ VOUT ISCV

SENSE(I

KNEE I

SHORT CKT)

1

RSC

+V

SENSE

ISC

1 ) R3R4

NOTES:

NOTES:

NOTE:

VOUT

+ VREF x R2R1 ) R2 VOUT + VREF xR2

R1 ) R2; R3 + R4

R3 +R1 R2

R1 ) R2for minimum temperature drift

NOTE:

R3 may be eliminated for minimum component count

Remote Shutdown Regulator With CurrentLimiting (VOUT = 2 to 7V)

High Voltage Regulator (VOUT = 7 to 37V)

Foldback Current Limiting Regulator (VOUT = 2 to 7V)

R2R4

COMPV

1nF

C1

R1

RSCVC

V+

VIN

VREF VOUT

CL

CS

INVN.I.

Q1

R3

2k

2k

LOGIC INPUT

REGULATEDOUTPUT

VREF VOUT

CL

CS

INVN.I.

V

V+

VIN

VC

R3

COMP

REGULATEDOUTPUT

R2

R1

100pFC1

RSC

R2COMPV

R1

VC

VIN

VREF VOUT

CL

CS

INVN.I.

RSC REGULATEDOUTPUT

1nF

C1

R4

R3VZ

16

0

OUTPUT CURRENT mA

OUTPUTVOLTAGEDEVIATIONV

R3 = 500

RSC = 3.4

R4 = 3.6k14

12

10

8

6

4

2

0ISHORT

10 20 30 40 50 60

IKNEE

SL00508

Figure 6. Typical Applications (cont.)