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PDF SPX2969 Data sheet ( Hoja de datos )
| Número de pieza | SPX2969 | |
| Descripción | 150mA Low Dropout Voltage Regulator | |
| Fabricantes | Sipexoration | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SPX2969 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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® Advanced SPX2969
150mA Low Dropout Voltage Regulator
FEATURES
■ 5V Fixed Output
■ 150mA current capability
■ 250mV Dropout
I1 8Q
SI 2
SPX2969
7 SO
■ Programmable Reset Threshold
■ 250µA Quiescent Current
■ Over Temperature Protection
RADJ 3
D4
8 PIN NSOIC
6 RO
5 GND
■ Reverse Polarity Protection
Now Available in Lead Free Packaging
■ Integrated Pull Up Resistor on Logic Outputs
■ -40° to 125°C Operating Range
■ Available in 8 Pin and 14 Pin nSOIC or 20
Pin wSOIC packages.
APPLICATIONS
■ Automotive
■ Industrial
■ Wireless Base Station
DESCRIPTION
Sipex’s SPX2969 is a low dropout linear regulator with integrated PNP pass transistor. The part
is designed for automotive environment, and thus can withstand up to 45V and 125°C
temperature range. The output voltage is set at a fixed 5V, and the part is guaranteed to deliver
at least 150mA. The SPX2969 provides multiple protection mechanisms, including over-
temperature and over-current conditions. The part has a built-in reset circuit to monitor when the
output voltage is below 4.65V. The reset voltage threshold can be programmed down to 3.5V
using an external resistor voltage divider, while the reset timing can be programmed via an
external capacitor. A built in comparator compares the signal of the pin SI, normally fed by a
voltage divider from the input voltage, with the reference and gives an early warning on the pin
SO. Both the sense output and the reset output delay signals contain integrated 20kOhm pull up
resistors. The part is available in three package types: 8 Pin and 14 Pin nSOIC or 20 Pin wSOIC
packages.
TYPICAL APPLICATION CIRCUIT
12V
+
1000µF
RS1
RS2
IQ
SPX2969
RO RADJ
SO
SI
GND
D
5V
RADJ1 +
22µF
0.1µF
RADJ2
Date: 8/4/04
RESET OUT
SPX2969 150mA Low Dropout Voltage Regulator
1
© Copyright 2004 Sipex Corporation
1 page  
PIN NUMBER
1
2
3
4
5
6
PIN NAME
VIN
SENSE IN
RADJ
DELAY
GND
RESET
7 SENSE OUT
8 VOUT
PIN DESCRIPTION
DESCRIPTION (8 PIN NOIC)
Input. block to GND with a Ceramic capacitor.
Sense Input. If not need connect to Q
Reset Threshhold Adj. If not needed connect to GND
Reset Delay. To select delay time, connect to GND via capacitor.
Ground
Reset Output. The open-collector output is internally linked to Q via a resistor. Keep it
open if not needed.
Sense Output. The open-collector output is internally linked to Q via a resistor. Keep it
open if not needed.
5V Output. Connect to GND with a 10µF capacitor, ESR<10
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PIN NAME
R
ADJ
DELAY
NC
GND
GND
GND
GND
NC
NC
RESET
SENSE OUT
VOUT
NC
GND
GND
GND
GND
NC
VIN
SENSE IN
DESCRIPTION (20 PIN WIDE NOIC)
Reset Threshold Adj. If not needed connect to GND
Reset delay. To select delay time, connect to GND via capacitor.
No Connect
Ground
Ground
Ground
Ground
No connect
No connect
Reset Output. The open-collector output is internally linked to Q via a 20K ohm pullup resistor. Keep
open if not needed.
Sense output. The open collector output is internally linked to the output via a 20k ohm pullup
resistor. Keep open if not needed.
5V Output. Conncet to GND with a 10 uF capacitor, ESR<10
No Connect
Ground
Ground
Ground
Ground
No Connect
Input. Bypass to GND directly at the IC with a ceramic capacitor.
Sense Input. If not needed connect to VOUT
Date: 8/4/04
SPX2969 150mA Low Dropout Voltage Regulator
5
© Copyright 2004 Sipex Corporation
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SPX2969.PDF ] | |
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