SPX3819M5-L-X-X(MS)
Product specification
SPX3819M5-L-X-X(MS)
GENERAL DESCRIPTION
The SPX3819M5-L-X-X(MS) series are a group of low-dropout ( LDO ) voltage regulators offering the benefits of
wide input voltage range,low dropout voltage,low power consumption, and miniaturized packaging.
Quiescent current of only 1.5µA makes these devices ideal for powering the battery-powered,always-on systems
that require very little idle-state power dissipation to a longer service life.
The SPX3819M5-L-X-X(MS) series of linear regulators are stable with the ceramic output capacitor over its wide input
range from 2V to 24V and the entire range of output load current ( 0mAto 500mA ).
Applications
Features
1.5μA Ground Current at no Load
Portable, Battery Powered Equipment
±2% Output Accuracy
Low Power Microcontrollers
500mA Output Current
Laptop, Palmtops and PDAs
Wide Operating Input Voltage Range: 2V to 24V
Wireless Communication Equipment
Dropout Voltage: 0.35V at 100mA / VOUT
Audio/Video Equipment
Support Fixed Output Voltage 1.8V, 3.3V, 5V
Car Navigation Systems
Stable with Ceramic or Tantalum Capacitor
Industrial Controls
Current Limit Protection
Weighting Scales
Over-Temperature Protection
Meters
SOT-23-5 Packages Available
Home Automation
5V
Reference News&Marking
SOT-23-5
Pin Configurations
NC
SPX3819M5-L-1-5(MS)
|W324
4
SPX3819M5-L-2-5(MS)
|H333
SPX3819M5-L-3-0(MS)
SPX3819M5-L(MS)
|J303
SPX3819M5-L-3-6(MS)
|P336
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SPX3819M5-L-1-8(MS)
|G323
SPX3819M5-L-2-8(MS)
|Q328
SPX3819M5-L-3-3(MS)
|L352
SPX3819M5-L-5-0(MS)
|M321
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SPX3819M5-L-X-X(MS)
Part Number
Code
——
SPX3819M5-L- X-X (MS)
brand identity
SOT-23-5
Output voltage:1-5=1.5V
1-8=1.8V
2-5=2.5V
2-8=2.8V
3-0=3.0V
3-3=3.3V
3-6=6.6V
5-0=5.0V
Notes:ADJ=SPX3819M5-L(MS)
Description of Functional Pins
Pin No
Pin Name
Pin Function
2
GND
Ground
5
VOUT
Output of the Regulator
1
VIN
Input of Supply Voltage.
4
3
NC
No Internal Connection.
.
Enable Control Input.
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SPX3819M5-L-X-X(MS)
Typical Application Circuits
Figure 1: Application circuit of Fixed VOUT LDO
Function Block Diagram
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SPX3819M5-L-X-X(MS)
Absolute Maximum Ratings (Note 1)
VIN to GND -------------------------------------------------------------------------------------------------------------------
-0.3V to 28V
VOUT to GND
1.8V,3.3V,5V-----------------------------------------------------------------------------------------------------
-0.3V to 6.0V
VOUT to VIN -----------------------------------------------------------------------------------------------------
-28V to 0.3V
Package Thermal Resistance (Note 2)
θJA ------------------------------------------------------------------------------------------- 200 oC /W
- 10 sec.) --------------------------------------------------------------------------------------Lead Temperature (Soldering,
Junction Temperature --------------------------------------------------------------------------------------------------------------
260 oC
150 oC
Storage Temperature Range ------------------------------------------------------------------------------------------ -40 oC to 150 oC
ESD Susceptibility
HBM -----------------------------------------------------------------------------------------------------------------------------
2KV
MM ---------------------------------------------------------------------------------------------------------------------------
200V
Recommended Operating Conditions
Input Voltage VIN ------------------------------------------------------------------------------------------------------------Junction Temperature Range ---------------------------------------------------------------------------------------Ambient Temperature Range ------------------------------------------------------------------------------------------
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2.0V to 24V
-40 oC to 125 oC
-40 oC to 85 oC
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SPX3819M5-L-X-X(MS)
Electrical Characteristics
(VIN =15V, VEN =5V, TA=25oC unless otherwise specified)
Parameter
Supply Voltage
Symbol
VIN
DC Output Voltage Accuracy
VDROP
Dropout Voltage (ILOAD =100mA)
Ground Current (ILOAD = 0mA)
Test
Conditions
2
--
24
V
2
%
--
0.35
VDROP_3.3V
VOUT = 3.3V
0.42
VDROP_1.8V
VOUT = 1.8V
0.5
VOUT = 5V
2.2
μA
0.3
%
0.1
%
700
mA
70
dB
IQ
Load Regulation
ΔLOAD
1mA≤ ILOAD ≤ 0.2A
Thermal Shutdown Hysteresis
Unit
VOUT ≥ 5V
ILOAD =1mA,
5 ≤ VIN ≤ 30V
Thermal Shutdown Temperature
Max
-2
ΔLINE
Power Supply Rejection Ratio
Typ
ILOAD =0.1mA
Line Regulation
Output Current Limit
Min
ILIM
PSRR
TSD
ΔTSD
VOUT =0
--
501
VOUT =5V,
ILOAD =1mA,
VIN = 12V,
f = 100Hz
ILOAD =10mA
--
160
15
V
--
°C
°C
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage
to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions may affect
device reliability.
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SPX3819M5-L-X-X(MS)
Application Guideline
Input and Output Capacitor Requirements
resistor in dropout condition.
The external input and output capacitors of
As any linear regulator, PSRR and transient response
SPX38
19M5-L-X-X(MS) series must be properly selected
are degraded as ( VIN – VOUT ) approaches dropout
for stability and performance. Use a 1μF or larger in
condition.
put capacitor and place it close to the IC's VIN and GN
D pins. Any output capacitor meeting the minimum 1m
OTP (Over Temperature Protection)
Ω ESR ( Equivalent Series Resistance ) and effective c
The over temperature protection function of
apacitance between 1μF and 22μF requirement may
19M5-L-X-X(MS) series will turn off the P-MOSFET w
be used. Place the output capacitor close to the IC's V
hen the junction temperature exceeds 160°C (typ.).
OUT and GND pins.Increasing capacitance and de
Once the junction temperature cools down by appro
creasing ESR can improve the circuit's PSRR and lin
ximately 15°C, the regulator will automatically resume
e transient response.
operation.
Current Limit
Thermal Application
The
For continuous operation, do not exceed the absolute
SPX3819M5-L-X-X(MS) series contain the curren
SPX38
t limiter of output power transistor, which monitors a
maximum junction temperature. The maximum power
nd controls the transistor, limiting the output cur
dissipation depends on the thermal resistance of the
rent to 700mA ( typical ).
IC package, PCB layout, rate of surrounding airflow,
The output can be shorted to ground indefinitely
and
without damaging the part.
temperature. The maximum power dissipation can be
Dropout Voltage
The SPX3819M5-L-X-X(MS) series use a PMOS pas
s transistor to achieve low dropout. When ( VIN –
VOUT ) is less than the dropout voltage ( VDROP ), t
he PMOS pass device is in the linear region of operati
on and the input-to-output resistance is the RDS(ON) o
f the PMOS pass element. VDROP scales approximatel
y with the output current because the PMOS devic
difference
between
junction
and
ambient
calculated as below:
The max PD (Max)= (125°C − 25°C) / (200°C/W) =
0.5W .
Power dissipation (PD) is equal to the product of the
output current and the voltage drop across the output
pass element, as shown in the equation below:
PD = ( VIN – VOUT ) × IOUT
e behaves as a
Layout Consideration
By placing input and output capacitors on the same side of the PCB as the LDO, and placing them as close as is
practical to the package can achieve the best performance. The ground connections for input and output capacitors
must be back to the SPX3819M5-L-X-X(MS) ground pin using as wide and as short of a copper trace as is practical.
Connections using long trace lengths, narrow trace widths, and/or connections through via must be avoided. These
add parasitic inductances and resistance that results in worse performance especially during transient conditions.
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SPX3819M5-L-X-X(MS)
Package Outline Dimensions
Symbol
Dimensions In Millimeters
Dimensions In Inches
Min.
Max.
Min.
Max.
A
1.050
1.250
0.041
0.049
A1
0.000
0.100
0.000
0.004
A2
1.050
1.150
0.041
0.045
b
0.300
0.500
0.012
0.020
c
0.100
0.200
0.004
0.008
D
2.820
3.020
0.111
0.119
E
2.650
2.950
0.104
0.116
E1
1.500
1.700
0.950(BSC)
0.059
e
0.067
0.037(BSC)
e1
1.800
2.000
0.071
0.079
L
0.300
0.600
0.012
0.024
θ
0°
8°
0°
8°
Suggested Pad Layout
REEL SPECIFICATION
P/N
SPX3819M5-L-X-X(MS)
Copyright© Msksemi Incorporated
PKG
SOT-23-5
QTY
3000
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SPX3819M5-L-X-X(MS)
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have specifications
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