SPX2954AN-5-0 datasheet, PDF - EEWORLD Datasheet

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SPX2954AN-5-0: Description250mA Low Dropout Voltage Regulator; CategoryPower/power management The power supply circuit; File Size206KB，17 Pages; ManufacturerSIPEX; Websitehttp://www.sipex.com/

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SPX2954AN-5-0 Overview

250mA Low Dropout Voltage Regulator

SPX2954AN-5-0 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	SIPEX
package instruction	TO-92, 3 PIN
Reach Compliance Code	unknow
Maximum drop-back voltage 1	0.5 V
Maximum input voltage	30 V
Minimum input voltage	6 V
JESD-30 code	O-PBCY-W3
JESD-609 code	e0
Number of functions	1
Number of terminals	3
Working temperatureTJ-Max	125 °C
Operating temperatureTJ-Mi	-40 °C
Maximum output current 1	0.25 A
Maximum output voltage 1	5.075 V
Minimum output voltage 1	4.925 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 SPECIFIED
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
surface mount	NO
Terminal surface	TIN LEAD
Terminal form	WIRE
Terminal location	BOTTOM
Maximum time at peak reflow temperature	NOT SPECIFIED

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SPX2954

250mA Low Dropout Voltage Regulator

FEATURES

■

5.0V and 3.3V Versions at 250mA

Output

■

Accurate 0.5% for SPX2954A

■

Very Low Quiescent Current

■

Low Dropout: 310mV at 250mA

■

Extremely Tight Load and Line Regulation

■

Very Low Temperature Coefficient

■

Current and Thermal Limiting

■

Need only 1µF for Stability

■

Direct Replacement for LP2954

■

Offered in TO-92, TO-263, SOT-223, &

TO-220; also SOIC--8

Pin Versions Only

■

Error Flag Warns of Output Dropout

■

Logic-Controlled Electronic Shutdown

■

Programmable Output from 1.24V to 30V

100K

ERROR

OUTPUT

______

ERROR

OUT

1.2 to 30V

SPX2954

SHUTDOWN

INPUT

GND

3.3µF

.01µF

1.23V

REF

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.

Note:: Tab is internally connected to GND on T0-263, SOT-223, and TO-220-3.

TO-263-3 Package (T)

TO-263-5 Package (T5)

8-Pin Surface Mount (S)

SPX2954

INPUT

FEEDBACK

5V, 3.3V TAP

OUTPUT

TO-92 (N)

SOT-223 Package (M3)

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

OUTPUT

SPX2954

SENSE

SPX2954

INPUT

GND

SHUTDOWN

1) INPUT

2 3 4 5

2) OUTPUT

GND

3) GND

4) SHUTDOWN

5) ERROR

Top View

SPX2954

1) INPUT

2) OUTPUT

ERROR

Bottom View

GND

OUT

Front View

1 2 3

GND V

OUT

1 2 3 4 5

3) GND

4) SHUTDOWN

5) ERROR

GND

OUT

Top View

Front View

Pin Connections

Date: 12/9/05

SPX2954, 250mA Low Dropout Voltage Regulator

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