zsr500

8/16/2019 ZSR500

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DEVICE DESCRIPTION

The ZSR Series three terminal fixed positive voltage

regulators feature internal circuit current limit and

thermal shutdown making the devices difficult to

destroy. The circuit design allows creation of any

custom voltage in the range 2.85 to 12 volts. The

devices are available in a small outline surface mount

package, ideal for applications where space saving is

important, as well as through hole TO92 style

packaging. The devices are suited to local voltage

regulation applications, where problems could be

encountered with distributed single source regulation,

as wel l as more general vol tage regulat ion

applications.

The ZSR Series show performance characteristics

superior to other local voltage regulators. The initial

output voltage is maintained to within 2.5% with a

quiescent current of typically 350µA. Output voltage

change, with input voltage and load current, is much

lower than competitive devices. The ZSR devices are

completely stable with no external components.

FEATURES

• Small outline SO8 and SOT223 package

• TO92 package

• 2.85 to 12 Volt

• Output current up to 200mA

• Tight initial tolerance

• Low quiescent current

• -55 to 125°C temperature range

• No external components

• Internal thermal shutdown

• Internal short circuit current limit

VOLTAGE RANGE

ZSR285 2.85V

ZSR300 3.0V

ZSR330 3.3V

ZSR400 4.0V

ZSR485 4.85V

ZSR500 5.0V

ZSR520 5.2V

ZSR570 5.7V

ZSR600 6.0V

ZSR700 7.0V

ZSR800 8.0V

ZSR850 8.5V

ZSR900 9.0V

ZSR1000 10.0V

ZSR1200 12.0V

ISSUE 3 - SEPTEMBER 2001

ZSR

SERIES2.85 TO 12 VOLT FIXED POSITIVELOCAL VOLTAGE REGULATOR

1

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ZSR

SERIESABSOLUTE MAXIMUM RATING

Input voltage 20V

Output Current(Io) 200mA

Operating Temperature -55 to 125°C

Storage Temperature -65 to 150°C

ELECTRICAL CHARACTERISTICSNotes:1. The maximum operating input voltage and output

current of the device will be governed by the

maximum power dissipation of the selected package.

Maximum package power dissipation is specified at

25 °C and must be linearly derated to zero at

Tamb=125°C.

2. The following data represents pulse test conditions

with junction temperatures as indicated at the

initiation of the test. Continuous operation of the

devices with the stated conditions might exceed the

power dissipation limits of the chosen package.

Power Dissipation (Tamb=25°C)

SOT223 2W(Note 3)

TO92 600mW

S08 780mW(Note 3)

3. Maximum power dissipation, for the SOT223 and

SO8 packages, is calculated assuming that the device

is mounted on a PCB measuring 2 inches square.4. The shut down feature of the device operates if its

temperature exceeds its design limit as might occur

during external faults, short circuits etc. If the

regulator is supplied from an inductive source then a

large voltage transient, on the regulator input, can

result should the shut down circuit operate. It is

advised that a capacitor (1µF or greater) should be

applied across the regulator input to ensure that the

maximum voltage rating of the device is not

exceeded under shutdown conditions.


2

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS

VO

Output Voltage 2.78 2.85 2.92 V

IO=1 to 200mA τ 2.736 2.964 V

Vin=4.85 to 20VIO=1 to 100mA τ

2.736 2.964 V

∆VO

Line Regulation Vin

=4.85 to 20V 10 40 mV

∆VO

Load Regulation IO

=1 to 200mAIO=1 to 100mA

52

25 mVmV

lq

Quiescent Current τ 350 600 µA

∆lq

Quiescent CurrentChange

IO=1 to 200mAVin=4.85 to 20V

100100

µAµA

Vn

Output Noise Voltage f=10Hz to 10kHz 75 µV rms

∆Vin

/ ∆VO

Ripple Rejection Vin=5.85 to 18Vf=120Hz 48 62 dB

Vin

Input Voltage RequiredTo Maintain Regulation 4.85 4.55 V

∆VO / ∆T Average Temperature

Coefficient of VO

IO=5.0mA τ0.1 mV/°C

ZSR285TESTCONDITIONS(Unlessotherwise stated):T j=25°C, IO=100mA,Vin=6.85V

=Tj=-55 to 125°C

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3

ZSR

SERIES


VO


IO=1 to 200mA τ 3.168 3.432 V


3.168 3.432 V

∆VO

Line Regulation Vin

=5.3 to 20V 7.5 30 mV

∆VO

Load Regulation IO


52

25 mVmV

lq


∆lq

Quiescent Current Change IO=1 to 200mAVin=5.3 to 20V

100100

µAµA

Vn


∆Vin / ∆VO Ripple Rejection Vin=6.3 to 18Vf=120Hz 50 64 dB

Vin

Input Voltage Required ToMaintain Regulation 5.3 5 V


Coefficient of VO


ZSR330 TEST CONDITIONS (Unless otherwise stated):T j=25°C, IO=100mA,Vin=7.3V

=Tj=-55 to 125°C

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. U NITS

VO


IO=1 to 200mA τ 2.88 3.12 V

Vin=5 to 20VIO=1 to 100mA τ

2.88 3.12 V

∆VO

Line Regulation Vin

=5 to 20V 10 40 mV

∆VO

Load Regulation IO


52

25 mVmV

lq


∆lq

Quiescent Current Change IO=1 to 200mAVin=5 to 20V

100100

µAµA

Vn


∆Vin / ∆V

O Ripple Rejection Vin=6 to 18V

f=120Hz 48 62 dB

Vin

Input Voltage Required ToMaintain Regulation 5 4.7 V


Coefficient of VO


ZSR300 TEST CONDITIONS (Unless otherwise stated):T j=25°C, IO=100mA, Vin=7V

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ZSR

SERIES


4


VO


IO=1 to 200mA τ 3.84 4.16 V


3.84 4.16 V

∆VO

Line Regulation Vin

=6 to 20V 10 40 mV

∆VO

Load Regulation IO


52

25 mVmV

lq Quiescent Current τ 350 600 µA

∆lq


IO=1 to 200mAVin=6 to 20V

100100

µAµA

Vn


∆Vin / ∆V


f=120Hz48 62 dB

Vin

Input Voltage RequiredTo Maintain Regulation

6 5.3 V

ZSR400 TEST CONDITIONS (Unless otherwise stated):T j=25°C, IO=100mA, Vin=8V

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITSV

O Output Voltage 4.729 4.85 4.971 V

IO=1 to 200mA τ 4.656 5.044 V


4.656 5.044 V

∆VO

Line Regulation Vin

=6.85 to 20V 10 40 mV

∆VO

Load Regulation IO


52

25 mVmV

lq


∆lq


IO=1 to 200mAVin=6.85 to 20V

100100

µAµA

Vn


∆Vin / ∆V

O Ripple Rejection Vin=7.85 to 18V

f=120Hz

50 64 dB

Vin

Input Voltage RequiredTo Maintain Regulation

6.85 6.55 V


Coefficient of VO

IO=5.0mA τ 0.1 mV/°C

=Tj = -55 to 125°C

ZSR485TEST CONDITIONS (Unlessotherwise stated):T j=25°C, IO=100mA,Vin=8.85V

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5

ZSR

SERIES


VO

Output Voltage 11.7 12 12.3 V

IO=1 to 200mA τ 11.52 12.48 V


11.52 12.48 V

∆VO

Line Regulation Vin

=14 to 20V 12 40 mV

∆VO

Load Regulation IO


93

30 mVmV

lq


∆lq

Quiescent Current Change IO=1 to 200mAV

in

=14 to 20V100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 43 57 dB

Vin



Coefficient of VO

IO=5.0mA τ 0.25mV/°C

ZSR1200 TEST CONDITIONS (Unlessotherwisestated): T j=25°C, IO=100mA, Vin=16V

τ =Tj = -55 to 125 °C


VO


IO=1 to 200mA τ 9.6 10.4 V


9.6 10.4 V

∆VO

Line Regulation Vin

=12 to 20V 12 40 mV

∆VO

Load Regulation IO

=1 to 200mA

IO=1 to 100mA

9

3

30 mV

mV

lq


∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 43 57 dB

Vin



Coefficient of VO

IO=5.0mA τ 0.25mV/°C

ZSR1000 TEST CONDITIONS (Unless otherwise stated): T j=25°C, IO=100mA, Vin=14V

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ZSR

SERIESZSR285 ZSR300 ZSR400ZSR570 ZSR900


6

T h e r m a

l R e s i s t a n c e

( ˚ C / W )

1m 10m 100m 1010

8

16

24

32

40

48

D=0

D=0.05

D=0.1

D=0.2

D=0.5

D=1

Pulse Width(s)

Thermal Resistance v Pulse Width Thermal Resistance v Pulse Width

T h e r m a l R

e s i s t a n c e

( ˚ C / W )

SOT223 PACKAGE

0 10 20 30 40 50-1.0

-0.5

0

+0.5

OUTPUT VOLTAGE

DEVIATION

Time (us)

Line Transient Response

INPUT VOLTAGE

IO = 100mACOUT = 0dVIN /dt = 5V/ µs

(V + 9)

(V + 4)

O

O

0 10 20 30 40 50-1.0

-0.5

0

+0.5

0

OUTPUT VOLTAGE

DEVIATION

LOAD CURRENT

Time (us)

O u

t p u

t V o

l t a g e

D e v

i a t i o n

( V )

Load Transient Response

V IN = Vo+ 4VCOUT= 0dIo /dt = 1A/ µs

100 mA

0

10

20

30

40

50

60

70

80

90

10 100 1K 10K 100K

Ripple Frequency (Hz)

R i p p

l e R e

j e c t i o n

( d B )

Io = 100mAVin = Vout + 3V

DVin = 200mV p/p

ZSR285

ZSR400

ZSR570

ZSR900

100 1K 10K 100K

10

1.0

0.1

0.01

ZSR900

ZSR570

ZSR400

ZSR285

Frequency (Hz)

O

u t p u

t I m p e

d a n c e

( O h m s ) Io = 100mA

VIN = VOUT+ 4V

Output Impedance v Frequency Ripple Rejection v Ripple Frequency

ZSR300

ZSR300

Pulse Width (s)

0

20

40

60

80

100

120

140

160

D=0

D=0.05

D=0.1

D=0.2

D=0.5

D=1

TO92 PACKAGE

10m 100m 101m 10

O u

t p u

t V o

l t a g e

D e v

i a t i o n

( V )

TYPICAL CHARACTERISTICS

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ZSR

SERIES


8

SYMBOL PARAMETER CONDITIONS MIN. Typ. MAX. UNITS

VO


IO=1 to 200mA τ 5.47 5.93 V


5.47 5.93 V

∆VO

Line Regulation Vin

=7.7 to 20V 10 40 mV

∆VO

Load Regulation IO


72.5

30 mVmV

lq


∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 48 62 dB

Vin

Input Voltage Required ToMaintain Regulation 7.7 7.4 V


Coefficient of VO

IO=5.0mA τ 0.15mV/ °C

ZSR570TESTCONDITIONS(Unlessotherwisestated):T j=25°C,IO=100mA,Vin=9.7V


VO


IO=1 to 200mA τ 5.76 6.24 V


5.76 6.24 V

∆VO

Line Regulation Vin

=8 to 20V 10 40 mV

∆VO

Load Regulation IO


72.5

30 mVmV

lq


∆lq


100100

µAµA

Vn Output Noise Voltage f=10Hz to 10kHz 90 µV rms

∆Vin / ∆V


f=120Hz 48 62 dB

Vin



Coefficient of VO

IO=5.0mA τ0.15 mV/ °C


τ =Tj = -55 to 125 °C

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9

ZSR

SERIES


VO


IO=1 to 200mA τ 4.99 5.41 V


4.99 5.41 V

∆VO

Line Regulation Vin

=7.2 to 20V 10 40 mV

∆VO

Load Regulation IO


52

25 mVmV

lq


∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 48 62 dB

Vin



Coefficient of VO

IO=5.0mA τ0.1 mV/ °C

ZSR520 TEST CONDITIONS (Unless otherwise stated): T j=25°C, IO=100mA,Vin=9.2V

=Tj = -55 to 125 °C


VO


IO=1 to 200mA τ 4.8 5.2 V


4.8 5.2 V

∆VO

Line Regulation Vin

=7 to 20V 10 40 mV

∆VO

Load Regulation IO


52

25 mVmV

lq Quiescent Current τ 350 600 µA

∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 48 62 dB

Vin



Coefficient of VO

IO=5.0mA τ0.1 mV/ °C


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ZSR

SERIES


10


VO


IO=1 to 200mA τ 8.64 9.36 V


8.64 9.36 V

∆VO

Line Regulation Vin

=11 to 20V 12 40 mV

∆VO

Load Regulation IO


93

30 mVmV

lq


∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 43 57 dB

Vin



Coefficient of VO

IO=5.0mA τ 0.25mV/ °C


=Tj = -55 to 125°C


VO


IO=1 to 200mA τ 8.16 8.84 V


8.16 8.84 V

∆VO

Line Regulation Vin

=10.5 to 20V 11 40 mV

∆VO

Load Regulation IO

=1 to 200mA

IO=1 to 100mA

8

3

30 mV

mVlq


∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 44 60 dB

Vin



Coefficient of VO

IO=5.0mA τ 0.25mV/ °C

ZSR850 TEST CONDITIONS (Unless otherwise stated): T j=25°C, IO=100mA,Vin=12.5V

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ZSR


11


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ZSR



12

4-38


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13

ZSR

SERIES


VO


IO=1 to 200mA τ 7.68 8.32 V


7.68 8.32 V

∆VO

Line Regulation Vin

=10 to 20V 11 40 mV

∆VO

Load Regulation IO


83

30 mVmV

lq


∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 44 60 dB

Vin



Coefficient of VO

IO=5.0mA τ 0.25mV/ °C


=Tj = -55 to 125°C


VO


IO=1 to 200mA τ 6.72 7.28 V


6.72 7.28 V

∆VO

Line Regulation Vin

=9 to 20V 10 40 mV

∆VO

Load Regulation IO

=1 to 200mA

IO=1 to 100mA

5

2

25 mV

mVlq


∆lq


100100

µAµA

Vn


∆Vin / ∆V


f=120Hz 48 62 dB

Vin



Coefficient of VO IO=5.0mA τ 0.1 mV/ °C


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14

ZSR


4-38

Output Voltage Temperature Coefficient

Temperature (°C)

0 25 7550

O u t

p u

t V

o l t a g e

( V )

-50 -25 100125

4.90

5.15

5.20

5.25

4.80

4.85

Io = 10mA

Vin = Vout + 4v

ZSR520

ZSR485


Temperature (°C)

0 25 7550-50 -25 100125

7.10

8.55

8.45

8.50

6.90

7.00


Temperature (°C)

0 25 7550

O u

t p u t

V o

l t a g e

( V )

-50 -25 100125

12.10

12.00

11.90

12.05

11.95

Io = 10mA

Vin = Vout + 4v

ZSR1200

Quiescent Current v Temperature

Temperature (°C)

0 25 7550-50 -25 100 125

500

450

400

350

300

Peak Output Current v Temperature

Temperature (°C)

0 25 75500

S h o r t - c i r c u

i t O

u t p u

t C

u r r e n

t ( m

A )

100

500

400

300

200

-50 -25 100125

Vo= 0

Vin= 10v

Drop-Out Votlage v Temperature

Temperature (°C)

0 25 75500

0.5

2.5

2.0

1.5

1.0

-50 -25 100125

Vo= 0

Vin= 10v

Io = 10mA

Vin = Vout + 4v

ZSR850

ZSR700


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CONNECTION DIAGRAMS


15

ZSR

SERIES

SO8 Package Suffix – N8

Top View

TO92 Package Suffix – C

Bottom View

SOT223 Package Suffix – G

Top View –

Connect pin 4 to pin 2 or leave pin 4

electrically isolated

Part No Package Partmark

ZSR C TO92 ZSR

ZSR G SOT223 ZSR

ZSR N8 SO8 ZSR

Voltage Option

eg 3V device in TO92 package

part number ZSR300C

part marked ZSR300 *

eg 12V device in SOT223 package

part number ZSR1200G


eg 5V device in SO8 package

part number ZSR500N8


ORDERING INFORMATION

Voltage VoltageOption

TO92 SOT223 SO8

2.85V 285 3 3 3

3.0V 300 3 3 3

3.3V 330 3 3 3

4.0V 400 3 3 3

4.85V 485 3 3 3

5.0V 500 3 3 3

5.2V 520 3 3 3

5.7V 570 3 3 3

6.0V 600 3 3 3

7.0V 700 3 3 3

8.0V 800 3 3 3

8.5V 850 3 3 3

9.0V 900 3 3 3

10 .0 V 10 00 3 3 3

12 .0 V 12 00 3 3 3

OPTIONS

* NOTE: Exception. ZSR1000 part markis ZSR100 for all package options

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ZSR

SERIES


16

Q14

Q16 Q17

Q11

R7 R4

R3

Q18Q19

R5

Q20

Q13

Q25

Q4

Q5

Q1

R1 Q3

C1

Q6 Q7

R2

Q8

R14

Q10

R9

R13

Vin

Vout

Gnd

R6

Q9

Q12

Q21

SCHEMATIC DIAGRAM

FixedOutputRegulator AdjustableOutputRegulator

Input Output

Gnd

ZR78L***Input Output

Gnd

ZR78L***

R1

R2

Iq

Vo=Vreg+(V reg/R1+Iq)R2

CurrentRegulator

Input

Output

ZR78L***

R1Iq

IO=(Vreg/R1) + 1q

APPLICATIONS

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ZSR

SERIES

17

ZSR485 ZSR520 ZSR700ZSR850 ZSR1200

4-

Line Transient Response

Time (µs)

20 30 5040

O u

t p u

t V

o l t a g e

D e v

i a t i o n

( V )

+0.2

0

0 10

-0.2

Vo+4

Vo+9

Io= 100mA

Cout= 0

dVin/dt= 5v/us

InputVoltage

Output Voltage

Deviation

Load Transient Response

Time (us)

20 30 5040

O u

t p u

t V

o l t a g e

D e v

i a t i o n

( V )

+0.2

0

0 10

-0.2

0

100mALoad Current

Output Voltage

Deviation

Vin= Vout+4v

Cout= 0

dIo/dt= 1A/us

Thermal Resistance v Pulse Width

Pulse Width (s)

1m 100m0

60

1 1010m

20

40

80

100

120

140

160 D=1

D=0.5

D=0.2

D=0.1

D=0.05

D=0

TO92 PACKAGE


Pulse Width (s)

1m 100m T h e r m a

l R

e s

i s t a n

c e ( °

C / W )

0

24

1 1010m

8

16

32

40

48

SOT223 PACKAGE

D=1

D=0.5

D=0.2

D=0.1

D=0.05

D=0

Output Impedance v Frequency

Frequency (Hz)

10 1k O u

t p u

t I m

p e

d a n c e

( O h m s )

0.01

10

10k 100k100

0.1

1

Io= 100mA

Vin= Vout+4v

ZSR1200

ZSR850

ZSR700

ZSR520ZSR485

Ripple Rejection v Ripple Frequency

Frequency (Hz)

100 10k

O p e n

L o o p

G a

i n ( d

B )

0

50

100k 1M1k

40

30

20

10

70

60

80

90

ZSR485ZSR520

ZSR700

ZSR850

ZSR1200

Io= 100mA

Vin= Vout+4vVin= 200mV Pk/Pk

T h e r m a

l R

e s

i s t a

n c e

( ° C / W )


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18

Zetex plcFields New RoadChaddertonOldham, OL9 8NPUnited KingdomTelephone (44) 161 622 4422Fax: (44) 161 622 4420

Zetex GmbHStreitfeldstraße 19D-81673 München

GermanyTelefon: (49) 89 45 49 49 0Fax: (49) 89 45 49 49 49

Zetex IncSuite 315700 Veterans Memorial HighwayHauppauge NY11788USATelephone: (631) 360 2222Fax: (631) 360 8222

Zetex (Asia) Ltd3701-04 Metroplaza, Tower 1Hing Fong RoadKwai Fong, Hong KongChinaTelephone: (852) 26100 611Fax: (852) 24250 494

These offices are supported by agents and distributors in major countries world-wide.

This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied orreproduced for any purpose or form part of any order or contract or be regarded as a representation relating to the products or servicesconcerned. The Company reserves the right to alter without notice the specification, design, price or conditions of supply of any product orservice.

For the latest product information, log on to www.zetex.com

© Zetex plc 2001

ZSR

SERIES


Pulse Width (s)

1m 100m

T h e r m a l R e s i s t a n c e ( ̊ C / W )

0

60

1 1010m

20

40

80

100

120

140

160

SO8 PACKAGE

D=0.2

D=0.1

D=0.05D=0

Power dissipation Derating

Ambient Temperature (˚C)

-50 0 M a x i m u m P o w e r D i s s i p a t i o n ( W )

0

1.0

25 50-25

0.8

0.6

0.4

0.2

1.4

1.2

1.6

1.8

75 100125

2.0 SOT223

SO8

TO92

100µ 100

D=1

D=0.5


zsr500

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