Datasheet > SPX2954U-3.3

SPX2954U-3.3

更新时间： 2024-11-27 22:16:55

品牌	Logo	应用领域
西伯斯 - SIPEX		稳压器
页数	文件大小	规格书
17页	178K
描述
250mA Low Dropout Voltage Regulator

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中文翻译

获取价格

数据手册

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SPX2954U-3.3 数据手册

SPX2954

250mA Low Dropout Voltage Regulator

FEATURES

+V_IN

■ 5.0V and 3.3V Versions at 250mA

Output

100K

■ Accurate 0.5% for SPX2954A

■ Very Low Quiescent Current

+V_IN

______

ERROR

1.2 to 30V

OUTPUT

V_OUT

■ Low Dropout: 310mV at 250mA

■ Extremely Tight Load and Line Regulation

■ Very Low Temperature Coefficient

■ Current and Thermal Limiting

■ Need only 1µF for Stability

SPX2954

SHUTDOWN

INPUT

R₁

3.3µF

.01µF

GND

1.23V

V_REF

■ Direct Replacement for LP2954

■ Offered in TO-92, TO-263, SOT-223,

R₂

TO-220 and SOIC

8 Pin Versions Only

■ Error Flag Warns of Output Dropout

■ Logic-Controlled Electronic Shutdown

■ Programmable Output from 1.24V to 30V

Adjustable Regulator

DESCRIPTION

The SPX2954 and SPX2954A 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 SPX2954 and SPX2954A feature low quiescent current

and low dropout voltage (typ. 20mV at 100µA and 310mV at 250mA). This includes a tight initial

tolerance (0.5% for SPX2954A), extremely good load and line regulation (0.05% typ.), and very

low output temperature coefficient (20 ppm/°C typ.), making the SPX2954/SPX2954A 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 input voltage. The logic-compatible shutdown feature enables the regulator to be

switched ON and OFF. The SPX2954/SPX2954A is offered in 3-pin TO-92, TO-263, SOT-223

and TO-220 packages, and 8 pin SOIC package.

8-Pin Surface Mount (S)

TO-263-3 Package (T) TO-263-5 Package (T5)

TO-92 (N)

SOT-223 Package (M3)

SPX2954

TO-220-3 Package (U) TO-220-5 Package (U5)

INPUT

OUTPUT

SENSE

SPX2954

FEEDBACK

5V, 3.3V TAP

ERROR

SPX2954

SHUTDOWN

1) INPUT

INPUT

OUTPUT

2) OUTPUT

GND

OUT

GND

SHUTDOWN

ERROR

Bottom View

SHUTDOWN

ERROR

Front View

Top View

V_IN

GND V_OUT

Top View

1 2 3 4 5

V_IN

GND

OUT

Front View

Pin Connections

Rev. 3/6/03

SP2954 250mA Low Dropout Voltage Regulator

12 3 4 5 6 7...17

中文翻译

下载PDF

与SPX2954U-3.3相关器件

型号	品牌	获取价格	描述	数据表
SPX2954U-3-3	SIPEX	获取价格	250mA Low Dropout Voltage Regulator
SPX2954U-3-3	EXAR	获取价格	Fixed Positive LDO Regulator, 3.3V, 0.5V Dropout, PSFM3, TO-220AB, 3 PIN
SPX2954U3-3.3	SIPEX	获取价格	250 mA Low Drop Out Voltage Regulator
SPX2954U-3-3/TR	EXAR	获取价格	Regulator,
SPX2954U3-5.0	SIPEX	获取价格	250 mA Low Drop Out Voltage Regulator
SPX2954U3-L-3.3	EXAR	获取价格	Fixed Positive LDO Regulator, 3.3V, 0.6V Dropout, PSFM3, TO-220, 3 PIN
SPX2954U3-L-5.0	EXAR	获取价格	Fixed Positive LDO Regulator, 5V, 0.6V Dropout, PSFM3, TO-220, 3 PIN
SPX2954U-5.0	SIPEX	获取价格	250mA Low Dropout Voltage Regulator
SPX2954U-5-0	SIPEX	获取价格	250mA Low Dropout Voltage Regulator
SPX2954U-5-0	EXAR	获取价格	Fixed Positive LDO Regulator, 5V, 0.5V Dropout, PSFM3, TO-220AB, 3 PIN

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