SPX3819M5-L-3-0 Exar Corporation, SPX3819M5-L-3-0 Datasheet

Linear Regulators - Standard 500mA Low Noise LDO Voltage Regulator

SPX3819M5-L-3-0

Manufacturer Part Number
SPX3819M5-L-3-0
Description
Linear Regulators - Standard 500mA Low Noise LDO Voltage Regulator
Manufacturer
Exar Corporation
Series
-r
Datasheet

Specifications of SPX3819M5-L-3-0

Output Type
Adjustable, Fixed
Dropout Voltage (max)
700 mV
Input Voltage Max
16 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Operating Temperature Range
- 40 C to + 125 C
Output Voltage Tolerance
+/- 1 %
Voltage Regulation Accuracy
1 %
Package / Case
SOT-23
Regulator Topology
Positive Fixed
Voltage - Output
3V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.34V @ 500mA
Number Of Regulators
1
Current - Output
500mA
Current - Limit (min)
-
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SPX3819M5-L-3-0/TR
Manufacturer:
EXAR
Quantity:
6 000
Part Number:
SPX3819M5-L-3-0/TR
Manufacturer:
SIPEX
Quantity:
20 000
Exar
JULY 30, 2008
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 drops 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
-- 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 5.0V -- or with an adjustable output. This device is offered
in 8 pin NSOIC, 8 pin DFN and 5-pin SOT-23 packages.
FEATURES
■ Low Noise: 40µV Possible
■ High Accuracy: 1%
■ Reverse Battery Protection
■ Low Dropout: 340mV at Full Load
■ Low Quiescent Current: 90µA
■ Zero Off-Mode Current
■ Fixed Output: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V,
■ Available in RoHS Compliant, Lead Free
Corporation 48720 Kato Road, Fremont CA, 94538
3.1V, 3.3V, 5.0V. Adj. Output also available.
Packages: 5 Pin SOT-23, 8 Pin Narrow
SOIC and 8 pin 2X3 DFN
500mA, LOW-NOISE LDO VOLTAGE REGULATOR
V
IN
+
ENABLE may be tied directly to V
GND
EN
1
3
2
SPX3819
TOP View
1
(510) 668-7000
IN
5
4
TYPICAL APPLICATION CIRCUIT
APPLICATIONS
■ Battery Powered Systems
■ Cordless Phones
■ Radio Control Systems
■ Portable/Palm Top/Notebook Computers
■ Portable Consumer Equipment
■ Portable Instrumentation
■ Bar Code Scanners
■ SMPS Post Regulators
(Opt.)
BYP
FAX (510) 668-7017
V IN
NC
EN
NC
+
8 Pin DFN
SPX3819
V
OUT
DESCRIPTION
8
7
6
5
www.exar.com
ADJ/BYP
V OUT
GND
NC
SPX3819
REV. F

Related parts for SPX3819M5-L-3-0

SPX3819M5-L-3-0 Summary of contents

Page 1

LOW-NOISE LDO VOLTAGE REGULATOR JULY 30, 2008 FEATURES ■ Low Noise: 40µV Possible ■ High Accuracy: 1% ■ Reverse Battery Protection ■ Low Dropout: 340mV at Full Load ■ Low Quiescent Current: 90µA ■ Zero Off-Mode Current ■ Fixed ...

Page 2

... 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 ♦ NSOIC-8 / Junction to Ambient DFN-8 / Junction to Ambient ♦ the junction to ambient thermal J(max) © 2008 Exar Corporation ...

Page 3

... Ground Current vs Input Voltage 3.350 3.345 3.340 3.335 3.330 3.325 3.320 3.315 3.310 3.305 3.300 3.295 3.290 4 400 500 Output Voltage vs Input Voltage 3 3.3V Device C = 1.0µ 100µ (V) IN 3.3V Device C = 1.0µ 100µ (V) IN © 2008 Exar Corporation ...

Page 4

... L 320 300 280 260 240 220 200 - 100 120 Ground Current vs Temperature with 50mA Load 4 3.3V Device 1.0µ 100 200 300 400 I (mA) L 3.3V Device 1.0µ 50mA L - 100 Temperature (°C) © 2008 Exar Corporation 500 120 ...

Page 5

... 100µA L 3.360 3.340 3.320 3.300 2.280 2.260 2.240 2.220 2.200 - Output Voltage vs Temperature 5 3.3V Device V = 4.3µ 1.0µ 500mA L - 100 120 Temperature (°C) 3.3V Device V = 4.3µ 1.0µ 500mA L - 100 120 Temperature (°C) © 2008 Exar Corporation ...

Page 6

... Bypass Cap (pF) Output Noise vs Bypass Capacitor Value I 10Hz - 100kHz Load Transient Response for 3.3V Device July 2008 Rev F SPX3819 500mA, Low Noise LDO Voltage Regulator 100000 1000000 Line Transient Response for 3.3V Device = 10mA © 2008 Exar Corporation ...

Page 7

... R 2 should be between 22 kΩ and 47kΩ. V OUT GND + EN BYP Hi-ON Lo-OFF Figure 2. Typical Adjustable Output Voltage Configuration 7 APPLICATION INFORMATION and R ) set the output voltage. The 1.235V OUT SPX3819 SOT- TOP View © 2008 Exar Corporation 2 V OUT ...

Page 8

... July 2008 Rev F SPX3819 500mA, Low Noise LDO Voltage Regulator PACKAGE: PIN DESCRIPTION ADJ/BYP EN GND OUT V OUT ADJ/BYP V OUT ADJ/BYP 4 5 SPX3819 5 Pin SOT- GND PACKAGE: PINOUTS 1 8 GND SPX3819 2 7 GND 8 Pin nSOIC 3 6 GND 5 GND 4 © 2008 Exar Corporation ...

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Page 12

... SPX3819M5-L-2-5 0.01 SPX3819M5-L-3-0 0.01 SPX3819M5-L-3-1 0.01 SPX3819M5-L-3-3 0.01 SPX3819M5-L-5-0 0.01 SPX3819M5-L/TR 0.01 SPX3819M5-L-1-2/TR 0.01 SPX3819M5-L-1-5/TR 0.01 SPX3819M5-L-1-8/TR 0.01 SPX3819M5-L-2-5/TR 0.01 SPX3819M5-L-3-0/TR 0.01 SPX3819M5-L-3-1/TR 0.01 SPX3819M5-L-3-3/TR 0.01 SPX3819M5-L-5-0/TR 0.01 SPX3819R2-L-1-2 0.01 SPX3819R2-L-1-2/TR 0.01 SPX3819S-L-1-2/TR 0.01 SPX3819S-L-1-5/TR 0.01 SPX3819S-L-1-2 0.01 SPX3819S-L-1-5 0.01 July 2008 Rev F ...

Page 13

... EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...

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