SPX2954CN-5.0 datasheet, PDF - EEWORLD Datasheet

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SPX2954CN-5.0: DescriptionFixed Positive LDO Regulator, 5V, PBCY3, TO-92, 3 PIN; CategoryPower/power management The power supply circuit; File Size27KB，2 Pages; ManufacturerExar

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SPX2954CN-5.0 Overview

Fixed Positive LDO Regulator, 5V, PBCY3, TO-92, 3 PIN

SPX2954CN-5.0 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Maker	Exar
Parts packaging code	TO-92
package instruction	TO-92,
Contacts	3
Reach Compliance Code	unknown
ECCN code	EAR99
JESD-30 code	O-PBCY-T3
JESD-609 code	e0
Number of functions	1
Number of terminals	3
Maximum output current 1	0.25 A
Maximum output voltage 1	5.05 V
Minimum output voltage 1	4.95 V
Nominal output voltage 1	5 V
Package body material	PLASTIC/EPOXY
encapsulated code	TO-92
Package shape	ROUND
Package form	CYLINDRICAL
Peak Reflow Temperature (Celsius)	NOT APPLICABLE
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
surface mount	NO
Terminal surface	TIN LEAD
Terminal form	THROUGH-HOLE
Terminal location	BOTTOM
Maximum time at peak reflow temperature	NOT APPLICABLE

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SPX2954

250mA Low Dropout Voltage Regulators

features

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

Regulation

0.5% and 1% Accuracy

Very Low Temperature

Coefficient

Current and Thermal Limiting

Error Flag and Enable

Reverse Battery and

Overvoltage Transient

Protection

TO-92, 8L SOIC Package

Options

Direct Replacement For

LP2954

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.

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.

typical application circuits

Adjustable Regulator

100K

ERROR

OUTPUT

______

ERROR

OUT

1.2 to 30V

SPX2954

SHUTDOWN

INPUT

GND

3.3uF

.01uF

applications

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

P-159

1.23V

REF

Latch Off when Error flag Occurs

470kΩ

______

ERROR

OUT

470kΩ

OUT

SPX2954

GND

1uF

RESET

2002 Short Form Catalog

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