SPX3819M5 Sipex Corporation, SPX3819M5 Datasheet

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SPX3819M5

Manufacturer Part Number
SPX3819M5
Description
Manufacturer
Sipex Corporation
Datasheet

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FEATURES
APPLICATIONS
The SPX3819 is a positive voltage regulator with a low dropout voltage and low noise output. In
addition, this device offers a very low ground current of 800µA at 100mA output. The SPX3819 has
an initial tolerance of less than 1% max and a logic compatible ON/OFF switched input. When disabled
power consumption drop to nearly zero. Other key features include reverse battery protection, current
limit, and thermal shutdown. The SPX3819 includes a reference bypass pin for optimal low noise
output performance. With its very low output temperature coefficient, this device also makes a superior
low power voltage reference.
The SPX3819 is an excellent choice for use in battery-powered applications such as cordless
telephones, radio control systems, and portable computers. It is available in several fixed voltages
1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 5.0V or with an adjustable output. This device is offered in SOIC-8 and
5-pin SOT-23.
Rev. 7/25/03
Low Noise: 40µV Possible
High Accuracy: 1%
SOT-23 Package
Low Dropout: 340mV at Full Load
Low Quiescent Current: 90µA
Zero Off-Mode Current
Fixed Output: 1.8V, 2.5V, 3.0V, 3.1V,
3.3V, 5.0V
Reverse Battery Protection
Battery Powered Systems
Cordless Phones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Bar Code Scanners
SMPS Post Regulators
500mA, Low-Noise LDO Voltage Regulator
®
V
IN
+
ENABLE may be tied directly to V
GND
EN
SPX3819 500mA, Low Noise LDO Voltage Regulator
1
3
2
SPX3819
TOP View
1
IN
ADJ/BYP
V
OUT
V
EN
IN
5
4
1
2
3
4
TYPICAL APPLICATION CIRCUIT
(Opt.)
BYP
V
V
OUT
5
1
IN
5 Pin SOT-23
SPX3819
8 Pin SOIC
+
SPX3819
GND
2
V
ADJ/BYP
© Copyright 2003 Sipex Corporation
OUT
EN
4
3
SPX3819
DESCRIPTION
8
7
6
5
GND
GND
GND
GND

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SPX3819M5 Summary of contents

Page 1

... ENABLE may be tied directly TOP View SPX3819 500mA, Low Noise LDO Voltage Regulator 1 SPX3819 V ADJ/BYP OUT 5 4 SPX3819 5 Pin SOT- GND GND SPX3819 GND 7 GND 6 8 Pin SOIC GND 5 DESCRIPTION V OUT + © Copyright 2003 Sipex Corporation ...

Page 2

... OUT ♦ I =10mA, C =1.0µF, C =1µ (10Hz-100kHz) I =10mA, C =10µF, C =1µ BYP C =1µF, (10Hz-100kHz) IN OFF ON V ≤ 0. ≤ 2.0V IH ♦ SOT-23-5 / Junction to Ambient ♦ SO-8 / Junction to Ambient the junction to ambient thermal J(max) © Copyright 2003 Sipex Corporation ...

Page 3

... Output Voltage vs Input Voltage SPX3819 500mA, Low Noise LDO Voltage Regulator 3 3.3V Device C = 1.0µ 100µ (V) IN 3.3V Device C = 1.0µ 100µ (V) IN © Copyright 2003 Sipex Corporation ...

Page 4

... Ground Current vs Temperature with 50mA Load SPX3819 500mA, Low Noise LDO Voltage Regulator 4 3.3V Device 1.0µ 100 200 300 400 I (mA) L 3.3V Device 1.0µ 50µ 100 Temperature (°C) © Copyright 2003 Sipex Corporation 500 120 ...

Page 5

... Output Voltage vs Temperature SPX3819 500mA, Low Noise LDO Voltage Regulator 5 3.3V Device V = 4.3µ 1.0µ 500mA L - 100 120 Temperature (°C) 3.3V Device V = 4.3µ 1.0µ 500µ 100 120 Temperature (°C) © Copyright 2003 Sipex Corporation ...

Page 6

... Bypass Cap (pF) Output Noise vs Bypass Capacitor Value I 10Hz - 100kHz Load Transient Response for 3.3V Device Rev. 7/25/03 100000 1000000 Line Transient Response for 3.3V Device = 10mA, L SPX3819 500mA, Low Noise LDO Voltage Regulator 6 © Copyright 2003 Sipex Corporation ...

Page 7

... Figure 2. Typical Adjustable Output Voltage Configuration SPX3819 500mA, Low Noise LDO Voltage Regulator 7 APPLICATION INFORMATION . However, BYP and R ) set the output voltage. The 1.235V OUT SPX3819 SOT- ADJ BYP R2 (Opt.) TOP View © Copyright 2003 Sipex Corporation 2 V OUT ...

Page 8

... A1 0.004/0.010 (0.102/0.249 B 0.014/0.019 (0.35/0.49) D 0.189/0.197 (4.80/5.00) E 0.150/0.157 (3.802/3.988) e 0.050 BSC (1.270 BSC) H 0.228/0.244 (5.801/6.198) h 0.010/0.020 (0.254/0.498) L 0.016/0.050 (0.406/1.270) Ø 0°/8° (0°/8°) © Copyright 2003 Sipex Corporation ...

Page 9

... .10 SYMBOL Rev. 7/25/ MIN MAX 0.90 1.45 0.00 0.15 0.90 1.30 0.25 0.50 0.09 0.20 2.80 3.10 2.60 3.00 1.50 1.75 0.35 0.55 0.95ref 1.90ref SPX3819 500mA, Low Noise LDO Voltage Regulator 9 PACKAGE: 5 PIN SOT-23 0.20 ' DATUM ' Lead SOT23 © Copyright 2003 Sipex Corporation ...

Page 10

... SPX3819S-3.1 ...................... 1% .......................................... 3.1V ...................................................... SOIC-8 SPX3819S-3.3 ...................... 1% .......................................... 3.3V ...................................................... SOIC-8 SPX3819S-5.0 ...................... 1% .......................................... 5.0V ...................................................... SOIC-8 SPX3819M5 .......................... 1% ........................................... Adj ................................................... SOT-23-5 SPX3819M5-1.8 ................... 1% .......................................... 1.8V .................................................. SOT-23-5 SPX3819M5-2.5 ................... 1% .......................................... 2.5V .................................................. SOT-23-5 SPX3819M5-3.0 ................... 1% .......................................... 3.0V .................................................. SOT-23-5 SPX3819M5-3.1 ................... 1% .......................................... 3.1V .................................................. SOT-23-5 SPX3819M5-3.3 ................... 1% .......................................... 3.3V .................................................. SOT-23-5 SPX3819M5-5.0 ................... 1% .......................................... 5.0V .................................................. SOT-23-5 Please consult the factory for pricing and availability on a Tape-On-Reel option. Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office ...

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