SPX2954ACS-3.3 [SIPEX]
Fixed/Adjustable Positive LDO Regulator, PDSO8, SOIC-8;
| 型号： | SPX2954ACS-3.3 |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Fixed/Adjustable Positive LDO Regulator, PDSO8, SOIC-8 光电二极管 输出元件 调节器 |
| 文件： | 总2页 (文件大小：26K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
SPX2954
250mA Low Dropout Voltage Regulators
features
description
The SPX2954 is a low power voltage regulator. This device is an
excellent choice for use in battery-powered applications such as cord-
less telephones, radio control systems, and portable computers. The
SPX2954 has a low quiescent current and low dropout voltage (typ.
375 mV at 250mA). This includes a tight initial tolerance of 0.5%
(typ.), extremely good load and line regulation (0.05% typ.), and very
low output temperature coefficient, making it useful as a low-power
voltage reference.
■ Guaranteed 250mA Output
Current
■ 5.0V and 3.3V Versions at
250mA Output
■ Very Low Quiescent Current
■ Low Dropout Voltage: 375mV
at 250mA
■ Extremely Tight Load and Line
The error flag output feature is used as a power-on reset for warning
of a low output voltage, due to a falling input voltage. The logic-com-
patible shutdown feature enables the regulator to be switched ON and
OFF. The SPX2954 is offered in a variety of industry standard pack-
ages and is compatible with other 3.3V AND 5.0V regulators.
Regulation
■ 0.5% and 1% Accuracy
P
■ Very Low Temperature
Coefficient
■ Current and Thermal Limiting
■ Error Flag and Enable
typical application circuits
Adjustable Regulator
■ Reverse Battery and
Overvoltage Transient
Protection
+VIN
100K
8
+VIN
■ TO-92, 8L SOIC Package
______
ERROR
ERROR
5
1.2 to 30V
1
OUTPUT
VOUT
Options
SPX2954
■ Direct Replacement For
+
3
R1
LP2954
SHUTDOWN
INPUT
3.3uF
SD
.01uF
FB
GND
7
4
1.23V
VREF
applications
R2
■ Battery Powered Systems
■ Cordless Telephones
■ Radio Control Systems
Latch Off when Error flag Occurs
+V IN
■ Portable/Palm Top/Notebook
470kΩ
8
..
Computers
+V IN
______
5
VOUT
ERROR
1
■ Portable Consumer Equipment
■ Portable Instrumentation
■ Avionics
470kΩ
VOUT
..
SPX2954
+
3
R1
1uF
SD
FB
7
GND
4
RESET
■ SMPS Post-Regulator
■ Voltage Reference
R2
■ Automotive Electronics
2002 Short Form Catalog
P-159
© Copyright 2001 Sipex Corporation
SPX2954
packages
8-Pin Surface Mount (S)
TO-220-3 (U)
TO-263-3 (T)
SOT-223 Package (M3)
TO-92 (N)
OUTPUT
SENSE
1
2
3
4
8
7
6
5
INPUT
1
2
3
FEEDBACK
5V, 3.3V TAP
SHUTDOWN
GND
1
2
3
OUTPUT
INPUT
1
2
3
ERROR
GND
Bottom View
GND
V
V
IN
OUT
Top View
Front View
VADJ
VIN
V OUT
1
2
3
Top View
VIN
GND VOUT
Front View
P
ordering information - Please consult the factory for pricing and availability on a Tape-On-Reel option.
Part Number
Accuracy
Output Voltage
Packages
SPX2954ACN-3.3
SPX2954ACN-5.0
SPX2954CN-3.3
SPX2954CN-5.0
SPX2954ACS-3.3
SPX2954ACS-5.0
SPX2954CS-3.3
SPX2954CS-5.0
SPX2954ACM3-3.3
SPX2954ACM3-5.0
SPX2954CM3-3.3
SPX2954CM3-5.0
SPX2954ACU-3.3
SPX2954ACU-5.0
SPX2954CU-3.3
SPX2954CU-5.0
SPX2954ACT-3.3
SPX2954ACT-5.0
SPX2954CT-3.3
SPX2954CT-5.0
0.5%
0.5%
1%
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3.3V
5.0V
3 lead TO-92
3 lead TO-92
3 lead TO-92
3 lead TO-92
8 Lead SOIC
8 Lead SOIC
8 Lead SOIC
8 Lead SOIC
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
3 lead TO-220
3 lead TO-220
3 lead TO-220
3 lead TO-220
3 lead TO-263
3 lead TO-263
3 lead TO-263
3 lead TO-263
1%
0.5%
0.5%
1%
1%
0.5%
0.5%
1%
1%
0.5%
0.5%
1%
1%
0.5%
0.5%
1%
1%
2002 Short Form Catalog
P-160
© Copyright 2001 Sipex Corporation
相关型号：
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Fixed Positive LDO Regulator, 3.3V, 0.5V Dropout, PDSO4, TO-261AA, SOT-223, 3 PIN
EXAR
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