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PDF ZTR250 Data sheet ( Hoja de datos )
| Número de pieza | ZTR250 | |
| Descripción | (ZTR250 / ZTR500) FIXED 2.5 AND 5 VOLT 3-TERMINAL VOLTAGE REFERENCES | |
| Fabricantes | Zetex Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ZTR250 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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FIXED 2.5 AND 5 VOLT
3-TERMINAL VOLTAGE REFERENCES
ISSUE 4 - MARCH 1998
ZTR250
ZTR500
DEVICE DESCRIPTION
The ZTR250 and ZTR500 are precision three
terminal references. These devices are ideal
for battery powered applications where
power saving is important. They offer low
power alternatives to other two terminal
shunt references.
The ZTR devices do not require an external
resistor and, in contrast to two terminal
references, waste none of the battery power
as load current varies. The ZTR only
consumes 30µA supply current.
The two devices require as low as 1.4 volts
between input and output for regulation.
Output voltage tolerance is ± 2.5%, with a
voltage variation of 0.275mV/°C over the
-55°C to 125°C operating range.
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FEATURES
• Small outline SOT23 and SOT89
packages
• TO92 package
• 2.5V and 5V output
• 2.5% tolerance
• Supply current independent of input
voltage over temperature
• Output current up to 50mA
• Very low supply current (30µA)
• Unconditionally stable
• Internal short circuit current limit
APPLICATIONS
• Battery Powered Systems
• Portable and Hand Held Equipment
• Instrumentation
• Metering
SCHEMATIC DIAGRAM
Vin
Vout
4-388
Gnd
1 page  
ZTR250
ZTR500
TYPICAL CHARACTERISTICS a=ZTR250: b=ZTR500
10
I O= 10mA
I o= 2mA
VIN= VOUT+ 4V
1.0
90
80
70
a
60 b
Io = 10mA
50
a 40
0.1 b 30
20
10
0.01
100
1K 10K
Frequency (Hz)
100K
Output Impedance v Frequency
0
10 100 1K 10K 100K
Ripple Frequency (Hz)
Ripple Rejection v Ripple Frequency
Load Current
a
0.4
0b
5mA
0mA
0.4
COUT=0
VIN=Vo+4
dIo/dt=1A/µs
0
-0.4
-0.4
0
20 40 60 80 100
Time (µs)
Load Transient Response
2
Surface Mount Devices
SOT89
Vin
a
5V
0V
0.4
0
COUT=0
-0.4
0.4 VIN=Vo+4
dVIN/dt=5V/µs
b
0
-0.4
0
10 20 30 40 50
Time (µs)
Line Transient Response
800
TO92 Through Hole Device
600
1
SOT23
400
200
0
-50
-25 0 25 50 75 100 125
Temperature (°C)
Power Derating
0
-50 -25 0 25 50 75 100 125
Temperature (°C)
Power Derating
4-392
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet ZTR250.PDF ] | |
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