参数资料
| 型号： | SPX2951ACS-L-5-0 |
| 厂商： | Exar Corporation |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V .15A 8SOIC |
| 标准包装： | 98 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 最高 30V |
| 电压 - 压降（标准）： | 0.3V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
?
SPX2950/SPX2951
150mA Low Dropout Voltage Regulator
FEATURES
8-Pin Surface Mount (S)
1
TO-92 (N)
2
3
■
5.0V and 3.3V at 150mA Output
OUTPUT
SENSE
1
2
8
7
INPUT
FEEDBACK
■
■
Accurate: 0.5% for SPX2950A/SPX2951A
Very Low Quiescent Current
SHUTDOWN
GROUND
3
4
6
5
5V or 3.3V Output
ERROR
V
OUT
GROUND
V IN
■
Low Dropout Voltage: 300mV at 150mA
SPX2951 Top View
SPX2950 Bottom View
■
■
■
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Current & Thermal Limiting
Now Available in Lead Free Packaging
APPLICATIONS
■ Need Only 1 μ F for Stability
■ Offered in TO-92 (SPX2950) and SOIC
(SPX2951)
■ Direct Replacement for LP2950/LP2951
SPX2951 versions only
■ Error Flag Warns of Output Dropout
■ Logic-Controlled Electronic Shutdown
■ Output Programmable From 1.24 to 29 V
■
■
■
■
■
■
■
■
■
■
Battery Powered Systems
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Avionics
SMPS Post-Regulator
Voltage Reference
Automotive Electronics
DESCRIPTION
The SPX2950 and SPX2951 are low power voltage regulators. These devices are an excellent choice for
use in battery-powered applications such as cordless telephones, radio control systems, and portable
computers. The SPX2950 and SPX2951 feature low quiescent current and low dropout voltage (typ. 20mV
at 100 μ A and 300mV at 150mA). This includes a tight initial tolerance of (0.5% for SPX2950A/SPX2951A),
extremely good load and line regulation (0.05% typ.), and very low output temperature coefficient (20ppm/
° C typ.), making the SPX2950/SPX2951 useful as a low-power voltage reference.
The error flag output feature is used as a power-on reset for warning of a low output voltage, due to a falling
voltage. The logic compatible shutdown feature enables the regulator to be switched ON and OFF. The
SPX2950 is offered in a 3-pin TO-92 package compatible with other 5.0V, 3.3V regulators. The SPX2951
is availiable in an 8-lead SOIC package.
UNREGULATED DC
5V
+
7
FEEDBACK
8
INPUT
1
OUTPUT
2
SENSE
+
180k ?
FROM
CMOS OR
TTL
3
SHUTDOWN
60 mV
+
+ 1.23V
_
+
_
ERROR
AMPLIFIER
ERROR DETECTION
COMPARATOR
60k ?
6
5V TAP
5
______
ERROR
+
330k ?
1 μ F
.
.
TO CMOS OR
TTL
4
Block Diagram of SPX2951, 8 Lead 5V Version
REFERENCE
GROUND
DATE: 1 2/01 /04
SPX2950/SPX2951 150mA Low Dropout Voltage Regulator
1
?Copyright 2004 Sipex Corporation
相关PDF资料 |
PDF描述 |
|---|---|
| SPX2954S-L-5-0 | IC REG LDO 5V .25A 8SOIC |
| SPX3819M5-L-3-0 | IC REG LDO 3V .5A SOT23-5 |
| SPX3819R2-L | IC REG LDO ADJ .5A 8DFN |
| SPX385AM-L-2-5/TR | IC VREF SHUNT PREC 2.5V SOT-23-3 |
| SPX385AM-L-5-0/TR | IC VREF SHUNT PREC 5V SOT-23-3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SPX2951ACS-L-5-0/TR | 功能描述:低压差稳压器 - LDO 150mA LOW DROPOUT RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| SPX2951CS-3.0 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:150mA Low Dropout Voltage Regulators |
| SPX2951CS-3.3 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:150mA Low Dropout Voltage Regulator |
| SPX2951CS-5.0 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:150mA Low Dropout Voltage Regulator |
| SPX2951CS-L-3-3 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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