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SPX2920M3-5-0 Datasheet

  • SPX2920M3-5-0

  • 400mA Low Drop Out Voltage Regulator with Shutdown

  • 10頁

  • SIPEX

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SPX2920
400mA Low Drop Out Voltage Regulator with Shutdown
FEATURES
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Output 3.3V, 5.0V, at 400mA Output
鈻?/div>
Very Low Quiescent Current
鈻?/div>
Low Dropout Voltage
鈻?/div>
Extremely Tight Load and Line Regulation
鈻?/div>
Very Low Temperature Coef鏗乧ient
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Current & Thermal Limiting
鈻?/div>
Error Flag Warns of Output Dropout
(for SO-8)
鈻?/div>
Logic-Controlled Electronic Shutdown
(for SO-8)
鈻?/div>
Output Programmable from 1.24V to 20V
(for SO-8)
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Equivalent Replacement for MIC2920A and
MIC2904
0.1
碌F
ON
+V
IN
8
+V
IN
V
OUT
1
1.2V to 20V
+
100K
SPX2920
SHUTDOWN
INPUT
OFF
FB
7
R
1
0.01碌F
10碌F
3
SD
GND
4
______
ERROR
ERROR
5
R
2
V
REF
OUTPUT
Adjustable Regulator
V
IN
5V
IN
OUT
SPX2920
+
GND
+
2.2
碌F
IG
5V Regulator Circuit
Now Available in Lead Free Packaging
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 (140碌A Typical) and very low dropout voltage. This
includes a tight initial tolerance of 1% maximum and very low output temperature coef鏗乧ient, making
the SPX2920 useful as a low-power voltage reference.
The error 鏗俛g output feature is used as power-on reset for warning of a low output voltage, due to
a falling voltage input from 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 TO-220 package,
surface mount SO-8 (same pin out as SPX2951), SOT-223, and 3-pin TO-263 packages.
The regulator output voltage (of the SO-8) may be pin-strapped for a 3.3V and 5.0V or programmed
from 1.24V to 20V with an external pair of resistors.
TO-220-3 (U)
GND
GND
V
OUT
1
2
3
4
8
7
TO-263-3 (T)
8-Pin Surface Mount
GND
V
IN
FEEDBACK
5V/ 3.3V TAP
ERROR
SOT-223 (M3)
SPX2920
SPX2920
1
2
3
SENSE
SPX2920
1
2
3
1
2
3
SHUTDOWN
GND
SPX2920
6
5
V
IN
GND V
OUT
V
IN
GND
V
OUT
V
IN
GND V
OUT
Front View
Top View
Top View
Top View
Date: 03/02/06
SPX2920 400mA Low Drop Out Voltage Regulator with Shutdown
漏Copyright 2006 Sipex Corporation
1

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