SPX2920S-5.0 Просмотр технического описания (PDF) - Signal Processing Technologies

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SPX2920S-5.0

400mA Low Drop Out Voltage Regulator with Shutdown

Signal Processing Technologies 

FEATURES

• Output Accuracy 2.5V, 3.3V, 5.0V, @ 400mA Output

• Very Low Quiescent Current

• Low Dropout Voltage

• Extremely Tight Load And Line Regulation

• Very Low Temperature Coefficient

• Current & Thermal Limiting

• Error Flag Warns Of Output Dropout

• Logic-Controlled Electronic Shutdown

• Output Programmable From 1.24V to 26V

SPX2920

400mA Low Drop Out Voltage Regulator

with Shutdown

(PRELIMINARY INFORMATION)

APPLICATIONS

• Battery Powered Systems

• Cordless Telephones

• Radio Control Systems

• Portable/Palm Top/Notebook Computers

• Portable Consumer Equipment

• Portable Instrumentation

• Automotive Electronics

• SMPS Post-Regulator

• Voltage Reference

PRODUCT DESCRIPTION

The SPX2920 is a low power voltage regulator. This device is an excellent choice for use in battery-powered applications such as

cordless telephones, radio control systems, and portable computers. The SPX2920 features very low quiescent current (140µA Typ.)

and very low dropout voltage. This includes a tight initial tolerance of 1% max and very low output temperature coefficient, making

the SPX2920 useful as a low-power voltage reference.

The error flag output feature is used as power-on reset for warning of a low output voltage, due to a falling voltage input of batteries.

Another feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. The SPX2920 is

offered in 3-pin and 5-pin TO-220 package, SO-8 (same pin out as SPX2951), SOT-223, and surface mount TO-263 packages.

The regulator output voltage (of the 8-pin SO-8 and 5-pin TO-220 & TO-263) may be pin-strapped for a 2.5V, 3.3V and 5.0V or

programmed from 1.24V to 26V with an external pair of resistors..

PIN CONNECTIONS

TO-263-5 Package

Five Lead Package Pin Functions:

TO-220-5 Package

SPX2920

12 34 5

Top View

SPX2920U51

SPX2920T51

1) ERROR

2) VIN

3) GND

4) VOUT

5) SHUTDOWN

SPX2920U52

SPX2920T52

ADJ

SHUTDOWN

GND

VIN

VOUT

SPX2920

12 34 5

Front View

TO-263-3 Package TO-220-3 Package

SPX2920

1 23

SPX2920

1 23

VIN GND VOUT

Top View

VIN GND VOUT

Front View

SOT-223 (M3)Package

8-Pin Surface Mount

SPX2920

123

V GND V

IN

OUT

Top View

VOUT

SENSE

SHUTDOWN

GND

1

8

2

7

SPX2920

3

6

4

5

Top View

VIN

FEEDBACK

5V/ 3.3V TAP

ERROR

Rev. 10/30/00

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