SPX2954
250mA Low Dropout Voltage Regulator
Description
FEATURES
■■ 5.0V and 3.3V versions at 250mA output
■■ Accurate 0.5% for SPX2954A
■■ Very low quiescent current
■■ Low dropout: 310mV at 250mA
■■ Extremely tight load and line regulation
■■ Very low temperature coefficient
■■ Current and thermal limiting
■■ Need only 1µF for stability
■■ Direct replacement for LP2954
■■ Error flag warns of output dropout
■■ Logic-controlled electronic shutdown
■■ Programmable output from 1.24V to 30V
The SPX2954 and SPX2954A are low power voltage regulators.
These devices are an excellent choice for use in battery-powered
applications such as cordless telephones, radio control systems,
and portable computers. The SPX2954 and SPX2954A feature low
quiescent current and low dropout voltage (typ. 20mV at 100µA and
310mV at 250mA). This includes a tight initial tolerance (0.5% for
SPX2954A), extremely good load and line regulation (0.05% typ.),
and very low output temperature coefficient (20 ppm/°C typ.), making
the SPX2954/SPX2954A useful as a low-power voltage reference.
The error flag output feature is used as a power-on reset for warning
of a low output voltage, due to a falling input voltage. The logiccompatible shutdown feature enables the regulator to be switched
ON and OFF. The SPX2954/SPX2954A is offered in a 3-pin SOT-223
package and an 8-pin SOIC package.
Typical Application
VIN
100K
ERROR
8
5
OUTPUT
VIN
ERROR
VOUT
1.2 to 30V
1
SPX2954
SHUTDOWN
INPUT
3
+
R1
SD
FB
GND
3.3μF
.01μF
7
4
1.23V
VREF
R2
Typical Application
REV1A
1/15
SPX2954
Absolute Maximum Ratings
Stresses beyond the limits listed below may cause
permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect
device reliability and lifetime.
Feedback Input Voltage.................................... -1.5V to 30V
Power Dissipation...................................... Internally Limited
ESD Rating.............................................................. 2kV Min
Shutdown Input Voltage................................... -0.3V to 30V
Error Comparator Voltage................................ -0.3V to 30V
Lead Temperature (soldering, 5 seconds).................. 260°C
Storage Temperature................................... -65°C to 150°C
Operating Junction Temperature Range...... -40°C to 125°C
Input Supply Voltage........................................ -0.3V to 30V
REV1A
2/15
SPX2954
Electrical Characteristics
Unless otherwise noted: VIN = VO + 1V, IL = 100µA, CL = 1µF(2) TA = 25°C.
SPX2954A
Parameter
SPX2954
Conditions
Units
Min
Typ
Max
Min
Typ
Max
TJ = 25°C
3.284
3.3
3.317
3.267
3.3
3.333
-25°C ≤ TJ ≤ 85°C
3.267
3.3
3.333
3.251
3.3
3.350
Full Operating Temp.
3.260
3.3
3.340
3.234
3.3
3.366
100µA ≤ IL ≤ 250mA; TJ ≤ TMAX
3.251
3.3
3.350
3.201
3.3
3.399
TJ = 25°C
4.975
5.0
5.025
4.950
5.0
5.050
-25°C ≤ TJ ≤ 85°C
4.950
5.0
5.050
4.925
5.0
5.075
Full Operating Temp.
4.940
5.0
5.060
4.900
5.0
5.100
100µA ≤ IL ≤ 250mA; TJ ≤ TMAX
4.925
5.0
5.075
4.850
5.0
5.150
V
20
100
50
150
ppm/°C
3.3V Versions
Output Voltage
Output Voltage
V
V
5V Versions
Output Voltage
Output Voltage
V
All Voltage Options
Output Voltage Temperature
Coefficient(1)
Line Regulation(3)
VO + 1V ≤ VIN ≤ 30V; I(4)
0.03
0.10
0.04
0.20
%
Load Regulation
100µA ≤ IL ≤ 250mA
0.04
0.20
0.10
0.30
%
IL = 1mA
60
100
60
100
IL = 100mA
290
450
290
450
IL = 250mA
310
500
310
500
IL = 1mA
150
170
150
170
IL = 100mA
3
6
3
6
IL = 250mA
10
14
10
14
VOUT = 0
270
550
270
550
mA
0.05
0.2
0.05
0.2
%/W
(3)
Dropout Voltage(5)
Ground Current
Current Limit
Thermal Regulation Output Noise,
10Hz to 100kHz
mV
µA
mA
CL = 1µF
430
430
µVrms
CL = 200µF
160
160
µVrms
CL = 3.3µF, Bypass = 0.01µF from pin 7
to Pin 1 (8 pin versions)
100
100
µVrms
8-Pin Version Only
Reference Voltage
1.220
Over Temp(6)
1.235
1.190
1.250
1.210
2.270
1.185
40
1.260
V
1.285
V
60
nA
Feedback Pin Bias Current
40
Vref Temperature Coefficient
20
50
ppm/°C
Feedback IBIAS Temperature
Coefficient
0.1
0.1
nA/°C
REV1A
60
1.235
3/15
SPX2954
SPX2954A
Parameter
SPX2954
Conditions
Units
Min
Typ
Max
Min
Typ
Max
Error Comparator
Output Leakage Current
VOH = 30V
0.01
1
0.01
1
µA
Output Low Voltage
VIN = VO - 0.5V; IOL = 400µA
150
250
150
250
mA
Upper Threshold Voltage(7)
40
60
Lower Threshold Voltage(7)
75
Hystersis
15
(7)
40
60
95
mA
75
95
15
mV
mV
Shutdown
Low (Regulator ON)
Input Logic Voltage
1.3
High (Regulator OFF)
Shutdown Input Current
0.7
2.0
1.3
0.7
2.0
VS = 2.4V
30
50
30
50
VS = 30V
400
800
400
800
3
10
3
10
Regulator Output Current in
Shutdown(8)
V
µA
µA
Thermal Resistance ѲJA
SOIC-8
128.4
°C/W
SOT-223
62.3
°C/W
NOTES:
1. Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range.
2. Unless otherwise specified all limits guaranteed for TJ = 25°C, VIN = 6V, IL = 100µA and CL = 1µF. Additional conditions for the 8-pin versions are feedback tied to 5V tap
and output tied to output sense (VOUT = 5V) and VSHUTDOWN ≤ 0.8V.
3. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the
specification for thermal regulation.
4. Line regulation for the SPX2954 is tested at IL = 1mA.
5. Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential. At very low
values of programmed output voltage, the minimum input supply voltage of 2V (2.3V over temperature) must be taken into account.
6. VREF ≤ VOUT ≤ (VIN - 1V), 2.3 ≤ VIN ≤ 30V, 100µA ≤ IL ≤ 250mA, TJ ≤ TJMAX.
7. Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal reference voltage measured at 6V input. To express
these thresholds in terms of output voltage change, multiply by the error amplifier gain = VOUT/VREF = (R1 + R2)/R2. For example, at a programmed output voltage of 5V,
the error output is guaranteed to go low when the output drops by 95mV x 5V/1.235 = 384mV. Thresholds remain constant as a percent of VOUT as VOUT is varied, with the
dropout warning occurring at typically 5% below nominal, 7.5% guaranteed.
8. VSHUTDOWN ≥ 2V, VIN ≤ 30V, VOUT = 0, Feedback pin tied to 5V/3.3V Tap.
Pin Configurations
SOT-223 Package (M3)
8-Pin Surface Mount (S)
SPX2954
1
2
V IN
GND
OUTPUT
1
8
INPUT
SENSE
2
7
FEEDBACK
SPX2954
3
V
SHUTDOWN
3
6
5V, 3.3V TA P
GND
4
5
ERROR
OUT
Front View
Top View
SOT-223 Package (M3)
8-Pin Surface Mount (S)
REV1A
4/15
SPX2954
Functional Block Diagram
UNREGULATED DC
5V
8
1
INPUT
OUTPUT
7
+
FEEDBACK
2
SENSE
+
_
180kΩ
3
FROM
CMOS OR
TTL
6
ERROR
AMPLIFIER
330kΩ
5V TAP
SHUTDOWN
+
60kΩ
60 mV
+
1μ F
.
5
+
_
ERROR
ERROR DETECTION
COMPARATOR
+ 1.23V
.
TO
CMOS OR
TTL
4
REFERENCE
GROUND
SPX2954 Block Diagram, 8-Lead 5V Version
Typical Performance Characteristics
1.4
1.2
5
3.5
4
3.0
2
2.5
0
-2
POWER
DISSIPATION (W)
1.0
0.8
0.6
-75 -50 -25
0
25 50 75 100 125 150
VOLTAGE NOISE SPECTRAL
DENSITY (µV/Hz)
OUTPUT VOLTAGE
CHANGE (mV)
1.6
1
~~
~
1.25W
0
-1
10
20
30
40
CL = 220µF
2.0
CL = 3.3µF
CBYP = 0.1µF
1.5
1.0
0.5
50
10 2
10 3
10 4
FREQUENCY (Hz), CBYP=0.1uF
Thermal Response
30
10 5
Output Noise
80
25
IL = 50mA
20
70
10
TJ = 150 ºC
RIPPLE REJECTION (dB)
IL = 100µA
15
IL = 1mA
5
~
~
10
TJ = 125 ºC
5
IL = 100µA
0
60
IL = 100mA
50
40
CL = 1μF
VIN = 6V
VOUT = 5V
30
20
-5
-10
C L = 1µF
TIME (µs)
Shutdown Threshold Voltage
0
IL = 100mA
0.0
0
TEMPERATURE (˚C)
OUTPUT VOLTAGE CHANGE (mV)
SHUTDOWN THRESHOLD VOLTAGE (V)
1.8
5
10
15
20
25
10
30
101
INPUT VOLTAGE (V)
10 2
10 3
10 4
10 5
10 6
FREQUENCY (Hz)
Line Regulation
Ripple Rejection
REV1A
5/15
SPX2954
Typical Performance Characteristics (Continued)
6
200
RL=50kΩ
175
4
INPUT CURRENT (μA)
RL=50kΩ
3
RL=50kΩ
2
150
125
100
RL= ∞
75
1
0.1
50
1
25
0
0
2
3
4
5
0
6
1
2
INPUT VOLTAGE (VOLTS)
280
240
INPUT CURRENT (mA)
I L=1mA
200
160
I L=0
120
80
40
2
3
4
7
8
0.01
0.1
9 10
1
5
6
7
8
10
100
LOAD CURRENT (mA)
Quiescent Current
6
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
RL=50kΩ
VOUT=5V
5
VIN=6V
IL=100mA
4
3
0
INPUT VOLTAGE (VOLTS)
1
2
3
4
5
6
7
8
-75 -50 -25
9 10
0
25 50
75 100 125 150
TEMPERATURE (ºC)
INPUT VOLTAGE (VOLTS)
Ground Current
Ground Current
Input Current
190
8
7
6
170
I L=100mA
QUIESCENT CURRENT (μA)
5
GROUND CURRENT (mA)
1
6
Input Current
320
0
5
INPUT VOLTAGE (VOLTS)
Dropout Characteristics
0
4
3
GROUND CURRENT (mA)
1
0
GROUND CURRENT (μA)
GROUND PIN CURRENT (mA)
225
5
OUTPUT VOLTAGE (VOLTS)
10
250
4
3
2
1
VIN=6V
I L=100μA
150
130
0
0
1
2
3
4
5
6
7
-75 -50 -25
8
0
25 50
75 100 125 150
TEMPERATURE (ºC)
INPUT VOLTAGE
Ground Current
Quiescent Current
REV1A
6/15
SPX2954
Typical Performance Characteristics (Continued)
500
500
240
I L = 150m A
220
~
~
40
20
I L = 100μ A
300
200
T J = 25ºC
100
0
0
-75 -50 -25
0
25 50
200
190
180
1mA
10mA
-75 -50 -25
100mA
OUTPUT CURRENT
Drop-Out Voltage
2.0
4
1.5
SINK CURRENT (mA)
6
HYSTERESIS
2
0
T A = 125ºC
50
mV
T A = 25ºC
1.0
T A = -55ºC
0.5
0
1
2
3
4
0.0
5
0
8V
4V
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
INPUT VOLTAGE (V)
C L = 1μ F
I L = 1mA
V OUT = 5V
-50
mV ~
~
6V
PULLUP RESISTOR TO
SEPARATE 5V SUPPLY
-2
200
Comparator Sink Current
10
400
600
800
TIME(μs)
OUTPUT LOW VOLTAGE (V)
Error Comparator Output
75 100 125 150
100
mV
= 5V
INPUT OUTPUT VOLTAGE
VOLTAGE CHANGE
OUT
25 50
Short Circuit Current
2.5
V
0
TEMPERATURE (ºC)
Drop-Out Voltage
8
Line Transient Response
90
90
80
80
I O = 100μ A
5
I O = 1mA
2
70
1
RIPPLE REJECTION (dB)
I O = 100m A
0.5
V OUT = 5V
C L = 1μ F
0.2
0.1
0.05
70
60
50
40
30
0.02
I L = 100μ A
C L = 1μ F
V IN = 6V
V OUT = 5V
10
100
1K
10K
FREQUENCY (Hz)
Output Impedance
100K
1M
60
50
40
30
20
0.01
I L = 10m A
20
10 1
10 2
C L = 1μ F
V IN = 6V
V OUT = 5V
I L = 1mA
IL =0
RIPPLE REJECTION (dB)
COMPARATOR OUTPUT (V)
210
170
100μA
75 100 125 150
TEMPERATURE (ºC)
OUTPUT IMPEDANCE (OHMS)
SHORT CIRCUIT CURRENT (mA)
300
200
230
400
DROP-OUT VOLTAGE (mV)
DROP-OUT VOLTAGE (mV)
400
10 3
10 4
10 5
10 6
10 1
10 2
10 3
10 4
FREQUENCY (Hz)
FREQUENCY (Hz)
Ripple Rejection
Ripple Rejection
REV1A
10 5
10 6
7/15
SPX2954
Typical Performance Characteristics (Continued)
20
2.3
50
0
0
BIAS CURRENT (nA)
1.9
FEEDBACK CURRENT (μA)
MINIMUM OPERATING VOLTAGE (V)
10
2.1
-10
-20
1.7
-75 -50 -25
0
Minimum Operating Voltage
25 50 75 100 125 150
150
40
5
100
20
~
~
SHUTDOWN OUTPUT
PINOUT VOLTAGE(V) VOLTAGE(V)
6
LOAD OUTPUT VOLTAGE
CURRENT CHANGE (mV)
7
-100
0
-20
CL=10μF
VOUT=5V
-60
~
~
1
100μA
0
4
5
0
4
8
12
16
-2
-100
20
0 100 200 300 400 500 600 700
TIME (us)
TIME (ms)
Load Transient Response
Load Transient Response
120
40
TA=25˚C
TA=85˚C
20
0
5
10
15
20
INPUT VOLTAGE (V)
Maximum Rated Output
25
30
TJMAX=125˚C
TOUT=5V
80
200
100
60
TA=25˚C
40
TA=50˚C
20
0
0
8-PIN MOLDED
DIP SOLDERED
TO PC BOARD
100
300
VOUT=5V
TIMAX=125˚C
60
120
OUTPUT CURRENT (mA)
80
PIN 2 TO PIN 4 RESISTANCE (kΩ)
100
OUTPUT CURRENT (mA)
Enable Transient
400
TO-92 PACKAGE
0.25” LEADS SOLDERED
TO PC BOARD
IL=10mA
VIN=8V
VOUT=5V
CL=10μF
0
100μA
3
CL=1μF
2
2
2
1.0
3
100μA
1
0.5
4
100mA
0
0
-0.5
Feedback Pin Current
80
-40
-1.0
FEEDBACK VOLTA GE (V)
60
CL=1μF
VOUT=5V
-1.5
-2.0
250
-50
TA= 55ºC
-250
0
200
0
TA= 25ºC
-150
Feedback Bias Current
50
TA=125ºC
-100
TEMPEATURE (ºC)
TEMPERATURE (ºC)
LOAD OUTPUT VOLTAGE
CURRENT CHANGE (mV)
-50
-200
-30
-75 -50 -25
25 50 75 100 125 150
PIN 7 DRIVEN BY EXTERNAL
SOURCE (REGULATOR RUN
OPEN LOOP)
TA=85˚C
0
-75 -50 -25
0
25
50
75 100 125 150
TEMPERATURE (ºC)
Divider Resistance
REV1A
0
5
10
15
20
25
30
INPUT VOLTAGE (V)
Maximum Rated Output Current
8/15
SPX2954
Applications Information
External Capacitors
The stability of the SPX2954 requires a 1µF or greater
capacitor between output and ground. Oscillation could occur
without this capacitor. Most types of tantalum or aluminum
electrolytic works fine here. For operations below -25°C solid
tantalum is recommended since the many aluminum types
have electrolytes that freeze at about -30°C. The ESR of
about 5Ω or less and resonant frequency above 500kHz are
the most important parameters in the value of the capacitor.
The capacitors value may be increased without limit.
The error comparator has an open-collector output, which
requires an external pull-up resistor. Depending on the
system requirements the resistor may be returned to 5V
output or other supply voltage. In determining the value of
this resistor, note that the output is rated to sink 400mA,
this value adds to battery drain in a low battery condition.
Suggested values range from 100k to 1MΩ. If the output is
unused this resistor is not required.
At lower values of output current, less output capacitance
is required for stability. For the currents below 10mA the
value of the capacitor can be reduced to 0.33µF and 0.1µF
for 1mA. More output capacitance is needed for the 8-pin
version at voltages below 5V since it runs the error amplifier
at lower gain. At worst case 3.3µF or greater must be used
for the condition of 150mA load at 1.23V output.
4.75V
OUTPUT
VOLTAGE
_______
ERROR*
The SPX2954 unlike other low dropout regulators will remain
stable and in regulation with no load in addition to the
internal voltage divider. This feature is especially important
in applications like CMOS RAM keep-alive. When setting
the output voltage of the SPX2954 version with external
resistors, a minimum load of 1µA is recommended.
INPUT
VOLTAGE
Error Detection Comparator Output
The comparator produces a logic low output whenever
the SPX2954 output falls out of regulation by more than
around 5%. This is around 60mV offset divided by the
1.235 reference voltage. This trip level remains 5% below
normal regardless of the programmed output voltage of the
regulator.
Figure 1 shows the timing diagram depicting the ERROR
signal and the regulator output voltage as the SPX2954
input is ramped up and down. The ERROR signal becomes
low at around 1.3V input, and goes high around 5V input
(input voltage at which VOUT = 4.75). Since the SPX2954’s
dropout voltage is load dependent, the input voltage trip
point (around 5V) will vary with the load current. The output
voltage trip point (approx. 4.75V) does not vary with load.
+
+
* See Application Info.
If there is more than 10 inches of wire between the input and
the AC filter capacitor or if a battery is used as the input then
a 1µF tantalum or aluminum electrolytic capacitor should be
placed from the input to the ground.
Instability can occur if there is stray capacitance to the
SPX2954 feedback terminal (pin 7). This could cause more
problems when using a higher value of external resistors
to set the output voltage. This problem can be fixed by
adding a 100pF capacitor between output and feedback and
increasing the output capacitor to at least 3.3µF.
+1.3V
+5.0V
Figure 1. Error Output Timing
Programming the Output Voltage of SPX2954
The SPX2954 may be pin-strapped for 5V using its internal
voltage divider by tying Pin 1 (output) to Pin 2 (sense) and Pin
7 (feedback) to Pin 6 (5V Tap). Also, it may be programmed
for any output voltage between its 1.235V reference and
its 30V maximum rating using an external pair of resistors.
Refer to the below equation for the programming of the
output voltage:
VOUT = VREF x (1 + R1/R2) + IFB R1
The VREF is 1.235 and IFB is the feedback bias current,
nominally -20nA. The minimum recommended load current
of 1µA forces an upper limit of 1.2MΩ on value of R2 . If no
load is presented the IFB produces an error of typically 2%
in VOUT which may be eliminated at room temperature by
trimming R1. To improve the accuracy choose the value of
R2 = 100k this reduces the error by 0.17% and increases
the resistor program current by 12µA. Since the SPX2954
typically draws 60µA at no load with Pin 2 open-circuited,
this is a small price to pay.
REV1A
9/15
SPX2954
Reducing Output Noise
It may be an advantage to reduce the AC noise present at
the output. One way is to reduce the regulator bandwidth by
increasing the size of the output capacitor. This is the only
way that noise can be reduced on the 3 lead SPX2954 but is
relatively inefficient, as increasing the capacitor from 1µF to
220µF only decreases the noise from 430µV to 160µVRMS
for a 100kHz bandwidth at 5V output. Noise can be reduced
fourfold by using a bypass capacitor across R1, since it
reduces the high frequency gain from 4 to unity. Pick
CBYPASS ≈ (1 / 2πR1 x 200Hz)
+V IN
8
ERROR
OUTPUT
+V
470KΩ
+VIN
______
ERROR
VOUT
1
*VOUT = VIN
SPX2954
SHUTDOWN
INPUT
or choose 0.01µF. When doing this, the output capacitor must
be increased to 3.3µF to maintain stability. These changes
reduce the output noise from 430µV to 100µVRMS for a
100kHz bandwidth at 5V output. With the bypass capacitor
added, noise no longer scales with output voltage so that
improvements are more dramatic at higher output voltages.
5
3
SD
GND
4
FB
7
*MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 40mV to 400mV.
DEPENDING ON LOAD CURRENT.
Figure 3. Wide Input Voltage Range, Current Limiter
IN
8
5
470KΩ
_____
ERROR
+V IN
V OUT
V OUT
1
SPX2954
3
RESET
R1
SD
GND
4
+
1μF
FB
7
R2
Figure 2. Latch Off when Error Flag Occurs
REV1A
10/15
SPX2954
Applications Information (continued)
+
6V
SEALED
LEAD-ACID
BATTERY
SOURCE
120kΩ
1.5kΩ
8
1N457
FB
VIN
SPX385
VOUT
1
MAIN V+
SPX2954
FOR 5.5 V
400kΩ
3
MEMORY V+
2
SD
100k Ω
GND
4
+
1μF
20kΩ
NI-CAD
BACKUP
BATTERY
Figure 4. Low Battery Disconnect
Figure 5. Regulator with State of Charge Indicator
REV1A
11/15
SPX2954
Applications Information (continued)
+V IN
8
3
AUX SHUTDOWN
INPUT
10KΩ
VIN
SD
OFF
ERROR
5
.
5 DEGREE SHUTDOWN FLAG
SPX2954
ON
V OUT
TEMP
SENSOR
FB
GND
4
+
1
EXTERNAL CIRCUIT
PROTECTED FROM
OVER TEMPERATURE
(V+ GOES OFF WHEN
TEMP > 125)
7
AS35
-
OR
RELAY
8.2KΩ
Figure 6. System Over Temperature Protection
+5V
4
UNREGULATED INPUT
4.7mA
20m A
8
8
OUTPUT
VIN
VOUT
1N4001
V OUT
FB
2N5432
(2)
1
7
6
2
27kΩ
SENSE
V TA P
FB
GND
4
330kΩ
1
SPX2954
SPX2954
0.1μ F
IN
7
360KΩ
GND
4
5V
2
OUTPUT
+
4.7μ F
1N457
MIN VOLTAGE = 4V
Figure 7. Open Circuit Detector for 4mA to 20mA Current
Loop
LOAD
50mA
to
300mA
Figure 8. 300mA Regulator with 0.75V
REV1A
12/15
SPX2954
Package Description
SOT-223-3
FRONT VIEW
TOP VIEW
BOTTOM VIEW
TERMINAL DETAILS
TYPICAL RECOMMENDED LAND PATTERN
Drawing No. : POD-00000098
Revision: B
REV1A
13/15
SPX2954
Package Description (Continued)
SOIC-8
Top View
Front View
Side View
POD-00000108
Drawing No:
Revision:
REV1A
A
14/15
SPX2954
Ordering Information(1)
Part Number
Operating Temperature
Range
Lead-Free
Package
SPX2954AM3-L-5-0/TR
SPX2954M3-L-3-3/TR
SPX2954M3-L-5-0/TR
-40°C ≤ TJ ≤ 125°C
SOT-223-3
Yes(2)
SPX2954M3-L-3-3(3)
SPX2954AS-L-5-0/TR(3)
SOIC-8
Packaging
Method
Accuracy
Output Voltage
(V)
Reel
0.5%
5.0
Reel
1%
3.3
Reel
1%
5.0
Tube
1%
3.3
Reel
0.5%
5.0
NOTE:
1. Refer to www.exar.com/SPX2954 for most up-to-date Ordering Information.
2. Visit www.exar.com for additional information on Environmental Rating.
3. NRND - Not Recommended for New Design.
4. TO-220, TO-92, and TO-263 package options no longer available.
Revision History
Revision
Date
1A
July 2017
Corporate Headquarters:
5966 La Place Court
Suite 100
Carlsbad, CA 92008
Tel.:+1 (760) 692-0711
Fax: +1 (760) 444-8598
www.maxlinear.com
Description
Updated to Maxlinear logo. Updated format and ordering information table. Pin configurations
moved to page 4. Removed information related to packages no longer available.
High Performance Analog:
48720 Kato Road
Fremont, CA 94538
Tel.: +1 (510) 668-7000
Fax: +1 (510) 668-7001
Email: powertechsupport@exar.com
www.exar.com
The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes
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user. Without limiting the rights under copyright, no part of this document may be reproduced into, stored in, or introduced into a retrieval system, or transmitted in any form or by any means (electronic,
mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of MaxLinear, Inc.
Maxlinear, Inc. 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
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risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of MaxLinear, Inc. is adequately protected under the circumstances.
MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written
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Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated.
© 2017 MaxLinear, Inc. All rights reserved
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15/15
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