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PDF SPX1121 Data sheet ( Hoja de datos )
| Número de pieza | SPX1121 | |
| Descripción | 150mA Low Dropout Voltage Regulator | |
| Fabricantes | Sipex | |
| Logotipo |  |
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® SPX1121
150mA Low Dropout Voltage Regulator
FEATURES
■ 5.0V and 3.3V output versions
■ 1% Output Accuracy
■ Very Low Quiescent Current
■ Low Dropout: 300mV @ 150mA
■ Very Tight Load & Line Regulation
■ Very Low Temperature Coefficient
■ Current and Thermal Limiting
■ Requires only 1µF for Stability
■ Equivalent Replacement for LT1121
■ Industry Standard SOT-223 and TO-92
3 lead packages
VOUT
IIN
+
0.1µF
IIN = IL + IG
IN OUT
SPX1121
GND
IG
5V
IL
+
2.2µF
LOAD
Figure 1. Fixed +5V Regulator Circuit
DESCRIPTION
The SPX1121 is a low power voltage regulator. It is an excellent choice for use in battery-powered
applications such as cordless telephones, radio control systems, and portable computers. The
SPX1121 features very low quiescent current and low dropout voltage (typ. 20mV at 100µA and
300mV at 150mA). A tight initial tolerance (1%), extremely good load and line regulation (0.05%
typ.), and very low output temperature coefficient (20 ppm/°C typ.), make the SPX1121 useful
as a low power voltage reference.
PACKAGES
SOT-223 Package (M3)
SPX1121
123
V GND V
IN OUT
Front View
TO-92 (N)
12 3
OUTPUT
GND
Bottom View
INPUT
Rev. 10/11/02
SPX1121 150mA Low DropoutVoltage Regulator
1
© Copyright 2002 Sipex Corporation
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
250
200
150
100
50
0
-50
-100
~~
100
mA
100
µA
0
CL = 1µF
V OUT = 5V
1 23
TIME (ms)
45
80
60
40
20
0
-20
-40
-60
~~
100
µA
100
µA
0
CL = 10µF
VOUT = 5V
4 8 12 16 20
TIME (ms)
120
TO-92 PACKAGE
100 0.25" LEADS SOLDERED
TO PC BOARD
80
Vout=5V
60 TJMAX = 125 ºC
40
20 TA = 85 ºC
TA=25 ºC
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
Load Transient Response
Load Transient Response
Maxium Rated Output
5
4
2
0
-2
~~
1
1.25W
0
-1
0 10 20 30
TIME (µs)
Thermal Response
40
50
30
25
20
15
10 TJ = 150 ºC
5
IL = 100µA
IL = 1mA
0
~~
10
5
0
TJ = 125 ºC
IL = 100µA
-5
-10
5 10 15 20 25
INPUT VOLTAGE (V)
30
Line Regulation
Rev. 10/11/02
SPX1121 150mA Low DropoutVoltage Regulator
5
© Copyright 2002 Sipex Corporation
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SPX1121.PDF ] | |
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