Zetex ZSR700N8, ZSR800C, ZSR800G, ZSR800N8, ZSR850C Datasheet
...
2.85 TO 12 VOLT FIXED POSITIVE
LOCAL VOLTAGE REGULATOR
ZSR
SERIES
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 well as more general voltage regulation
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
1
ZSR
SERIES
ABSOLUTE MAXIMUM RATING
Input voltage 20V
Output Current(I
Operating Temperature -55 to 125°C
Storage Temperature -65 to 150°C
ELECTRICAL CHARACTERISTICS
Notes:
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
T
=125°C.
amb
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.
) 200mA
o
Power Dissipation (T
amb
=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.
ZSR285 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=6.85V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS
V
Output Voltage 2.78 2.85 2.92 V
O
2.736 2.964 V
2.736 2.964 V
5
2
350 600
0.1 mV/°C
25 mV
100
100
ISSUE 3 - SEPTEMBER 2001
mV
µA
µA
µA
µVrms
Line Regulation Vin=4.85 to 20V 10 40 mV
∆V
O
Load Regulation IO=1 to 200mA
∆V
O
l
Quiescent Current
q
Quiescent Current
∆l
q
Change
V
Output Noise Voltage f=10Hz to 10kHz 75
n
∆V
∆V
Ripple Rejection Vin=5.85 to 18V
/∆V
in
O
V
Input Voltage Required
in
To Maintain Regulation 4.85 4.55 V
Average Temperature
/∆T
O
Coefficient of V
=Tj=-55 to 125°C
I
=1 to 200mA τ
O
V
=4.85 to 20V
in
I
=1 to 100mA τ
O
I
=1 to 100mA
O
τ
IO=1 to 200mA
V
=4.85 to 20V
in
f=120Hz 48 62 dB
IO=5.0mA τ
O
2
ZSR
SERIES
ZSR300 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=7V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage 2.92 3.0 3.08 V
V
O
2.88 3.12 V
2.88 3.12 V
5
25 mV
2
350 600
100
100
0.1 mV/°C
mV
µA
µA
µA
µV rms
∆V
∆V
=1 to 200mA τ
I
O
=5 to 20V
V
in
I
=1 to 100mA τ
O
Line Regulation Vin=5 to 20V 10 40 mV
∆V
O
Load Regulation IO=1 to 200mA
∆V
O
Quiescent Current
l
q
Quiescent Current Change IO=1 to 200mA
∆l
q
V
Output Noise Voltage f=10Hz to 10kHz 75
n
Ripple Rejection Vin=6 to 18V
/∆V
in
O
Input Voltage Required To
V
in
Maintain Regulation 5 4.7 V
Average Temperature
/∆T
O
Coefficient of V
O
I
=1 to 100mA
O
τ
V
=5 to 20V
in
f=120Hz 48 62 dB
IO=5.0mA τ
ZSR330 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=7.3V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage 3.218 3.3 3.382 V
V
O
3.168 3.432 V
3.168 3.432 V
5
25 mV
2
350 600
100
100
0.1 mV/°C
Line Regulation Vin=5.3 to 20V 7.5 30 mV
∆V
O
Load Regulation IO=1 to 200mA
∆V
O
Quiescent Current
l
q
Quiescent Current Change IO=1 to 200mA
∆l
q
Output Noise Voltage f=10Hz to 10kHz 50
V
n
∆V
∆V
Ripple Rejection Vin=6.3 to 18V
/∆V
in
O
Input Voltage Required To
V
in
Maintain Regulation 5.3 5 V
Average Temperature
/∆T
O
Coefficient of V
=Tj=-55 to 125°C
ISSUE 3 - SEPTEMBER 2001
=1 to 200mA τ
I
O
=5.3 to 20V
V
in
I
=1 to 100mA τ
O
I
=1 to 100mA
O
τ
V
=5.3 to 20V
in
f=120Hz 50 64 dB
IO=5.0mA τ
O
3
mV
µA
µA
µA
µV rms
ZSR
SERIES
ZSR400 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=8V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage 3.9 4.0 4.1 V
V
O
3.84 4.16 V
3.84 4.16 V
5
2
350 600
25 mV
mV
µA
100
100
µA
µA
µV rms
48 62 dB
6 5.3 V
∆V
=1 to 200mA τ
I
O
=6 to 20V
V
in
I
=1 to 100mA τ
O
Line Regulation Vin=6 to 20V 10 40 mV
∆V
O
Load Regulation IO=1 to 200mA
∆V
O
Quiescent Current
l
q
Quiescent Current
∆l
q
Change
V
Output Noise Voltage f=10Hz to 10kHz 75
n
Ripple Rejection Vin=7 to 18V
/∆V
in
O
Input Voltage Required
V
in
To Maintain Regulation
I
=1 to 100mA
O
τ
IO=1 to 200mA
V
=6 to 20V
in
f=120Hz
ZSR485 TEST CONDITIONS (Unless otherwise stated): Tj=25°C, IO=100mA, Vin=8.85V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage 4.729 4.85 4.971 V
V
O
4.656 5.044 V
4.656 5.044 V
5
2
350 600
25 mV
mV
µA
100
100
µA
µA
µV rms
50 64 dB
6.85 6.55 V
0.1 mV/°C
Line Regulation Vin=6.85 to 20V 10 40 mV
∆V
O
Load Regulation IO=1 to 200mA
∆V
O
Quiescent Current
l
q
Quiescent Current
∆l
q
Change
V
Output Noise Voltage f=10Hz to 10kHz 50
n
Ripple Rejection Vin=7.85 to 18V
/∆V
∆V
in
O
Input Voltage Required
V
in
To Maintain Regulation
∆V
Average Temperature
/∆T
O
Coefficient of V
=Tj= -55 to 125°C
=1 to 200mA τ
I
O
=6.8 to 20V
V
in
I
=1 to 100mA τ
O
I
=1 to 100mA
O
τ
IO=1 to 200mA
V
=6.85 to 20V
in
f=120Hz
IO=5.0mA τ
O
ISSUE 3 - SEPTEMBER 2001
4
ZSR
SERIES
ZSR1000 TEST CONDITIONS (Unless otherwise stated): Tj=25°C, IO=100mA, Vin=14V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage 9.75 10 10.25 V
V
O
9.6 10.4 V
9.6 10.4 V
9
30 mV
3
350 600
100
100
0.25
mV
µA
µA
µA
µV rms
mV/°C
∆V
∆V
=1 to 200mA τ
I
O
=12to20V
V
in
I
=1 to 100mA τ
O
Line Regulation Vin=12 to 20V 12 40 mV
∆V
O
Load Regulation IO=1 to 200mA
∆V
O
Quiescent Current
l
q
Quiescent Current Change IO=1 to 200mA
∆l
q
Output Noise Voltage f=10Hz to 10kHz 150
V
n
Ripple Rejection Vin=13to18V
/∆V
in
O
Input Voltage Required To
V
in
Maintain Regulation 12 11.7 V
Average Temperature
/∆T
O
Coefficient of V
O
I
=1 to 100mA
O
τ
V
=12to20V
in
f=120Hz 43 57 dB
IO=5.0mA τ
ZSR1200 TEST CONDITIONS (Unless otherwise stated): Tj=25°C, IO=100mA, Vin=16V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNITS
Output Voltage 11.7 12 12.3 V
V
O
11.52 12.48 V
11.52 12.48 V
9
30 mV
3
350 600
100
100
0.25
Line Regulation Vin=14 to 20V 12 40 mV
∆V
O
Load Regulation IO=1 to 200mA
∆V
O
Quiescent Current
l
q
Quiescent Current Change IO=1 to 200mA
∆l
q
V
Output Noise Voltage f=10Hz to 10kHz 150
n
Ripple Rejection Vin=15to18V
/∆V
∆V
in
O
Input Voltage Required To
V
in
Maintain Regulation 14 13.7 V
∆V
Average Temperature
/∆T
O
Coefficient of V
τ =Tj= -55 to 125 °C
ISSUE 3 - SEPTEMBER 2001
=1 to 200mA τ
I
O
=14to20V
V
in
I
=1 to 100mA τ
O
I
=1 to 100mA
O
τ
V
=14to20V
in
f=120Hz 43 57 dB
IO=5.0mA τ
O
5
mV
µA
µA
µA
µVrms
mV/°C
ZSR
SERIES
ZSR285 ZSR300 ZSR400
ZSR570 ZSR900
TYPICAL CHARACTERISTICS
10
1.0
0.1
Output Impedance (Ohms)
0.01
100 1K 10K
Io= 100mA
IN
V
Frequency (Hz)
= V
OUT
ZSR900
ZSR570
ZSR400
ZSR300
ZSR285
+ 4V
100K
Ripple Rejection (dB)
90
80
70
60
50
ZSR285
ZSR300
40
ZSR400
ZSR570
30
ZSR900
20
10
0
10 100
Io= 100mA
V
in
= V
out
V
in
= 200mV p/p
D
1K 10K 100K
Ripple Frequency (Hz)
Output Impedance v Frequency Ripple Rejection v Ripple Frequency
+ 3V
+0.5
0
-0.5
IO= 100mA
OUT
C
Output Voltage Deviation (V)
dV
IN
-1.0
01020
INPUT VOLTAGE
OUTPUT VOLTAGE
DEVIATION
= 0
/dt = 5V/µs
(V + 9)
O
(V + 4)
O
30
40 50
Time (us)
Line Transient Response
160
140
120
100
80
60
40
20
Thermal Resistance (˚C/W)
D=1
TO92 PACKAGE
D=0.5
D=0.1
D=0.05
0
D=0
0
D=0.2
10m
100m 101m 1
Pulse Width (s)
Thermal Resistance v Pulse Width
+0.5
0
-0.5
VIN= Vo+ 4V
C
OUT
Output Voltage Deviation (V)
-1.0
= 0
o
/dt = 1A/µs
dI
01020
LOAD CURRENT
OUTPUT VOLTAGE
DEVIATION
100 mA
0
30
40 50
Time (us)
Load Transient Response
48
40
32
24
16
8
Thermal Resistance (˚C/W)
0
D=1
SOT223 PACKAGE
D=0.5
D=0.2
D=0.1
D=0.05
D=0
1m
10m 100m 10
Pulse Width(s)
1
Thermal Resistance v Pulse Width
ISSUE 3 - SEPTEMBER 2001
6
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