Voltage Regulator. SPX2920 Datasheet

SPX2920 Regulator. Datasheet pdf. Equivalent


Sipex Corporation SPX2920
www.DataSheet4U.com
®
SPX2920
400mA Low Drop Out Voltage Regulator with Shutdown
FEATURES
Output 3.3V, 5.0V, at 400mA Output
Very Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load And Line Regulation
Very Low Temperature Coefficient
Current & Thermal Limiting
Error Flag Warns Of Output Dropout
(for SO-8)
Logic-Controlled Electronic Shutdown
(for SO-8)
Output Programmable From 1.24V to 20V
(for SO-8)
Equivalent Replacement for MIC2920A and
MIC2904
+VIN
100K
SHUTDOWN
INPUT
OFF
ON
8 +VIN
1
VOUT
SPX2920 FB 7
SD
3
______
ERROR
GND
5
4
1.2V to 20V
+
R1 0.01µF 10µF
VREF
R2
ERROR
OUTPUT
Adjustable Regulator
VIN
+
0.1 µF
IN OUT
SPX2920
GND
IG
5V
+
2.2 µF
5V Regulator Circuit
DESCRIPTION
The SPX2920 is a low power voltage regulator. This device is an excellent choice for use in battery-powered
applications such as cordless telephones, radio control systems, and portable computers. The SPX2920
features very low quiescent current (140µA Typ.) and very low dropout voltage. This includes a tight initial
tolerance of 1% max and very low output temperature coefficient, making the SPX2920 useful as a low-
power voltage reference.
The error flag output feature is used as power-on reset for warning of a low output voltage, due to a falling
voltage input of batteries. Another feature is the logic-compatible shutdown input which enables the
regulator to be switched on and off. The SPX2920 is offered in 3-pin TO-220 package, SO-8 (same pin
out as SPX2951), SOT-223, and surface mount and 3-pin TO-263 packages.
The regulator output voltage (of the SO-8) may be pin-strapped for a 3.3V and 5.0V or programmed from
1.24V to 20V with an external pair of resistors.
TO-220-3 (U)
SPX2920
123
TO-263-3 (T)
SPX2920
1 23
8-Pin Surface Mount
SOT-223 (M3)
VOUT
SENSE
SHUTDOWN
GND
18
27
SPX2920
36
45
VIN
FEEDBACK
5V/ 3.3V TAP
ERROR
SPX2920
1 23
VIN GND VOUT
VIN GND VOUT
Front View
VIN GND VOUT
Top View
Top View
Top View
Rev: A Date: 03/30/04
SPX2920 400mA Low Drop Out Voltage Regulator with Shutdown
1
©Copyright 2004 Sipex Corporation


SPX2920 Datasheet
Recommendation SPX2920 Datasheet
Part SPX2920
Description Low Drop Out Voltage Regulator
Feature SPX2920; www.DataSheet4U.com ® SPX2920 400mA Low Drop Out Voltage Regulator with Shutdown FEATURES ■ Outpu.
Manufacture Sipex Corporation
Datasheet
Download SPX2920 Datasheet




Sipex Corporation SPX2920
Power Dissipation ........................................................ Internally Limited
Lead Temp. (Soldering, 5 Seconds) ............................................. 260°C
Storage Temperature Range ........................................ -65°C to +150°C
Operating Junction Temperature Range ....................... -40°C to +125°C
Input Supply Voltage ......................................................... -20V to +20V
ABSOLUTE MAXIMUM RATINGS
Feedback Input Voltage .................................................... -1.5V to +20V
Shutdown Input Voltage .................................................... -0.3V to +20V
Error Comparator Output .................................................. -0.3V to +20V
ESD Rating ....................................................................................... 2kV
ELECTRICAL CHARACTERISTICS
Electrical characteristics at VIN =VO +1V, IO = 1mA, COUT = 2.2µF, TA = 25°C, unless otherwise specified. Boldface applies
over the full operating temperature range.
PARAMETER
3.3V Version
Output Voltage
5.0V Version
Output Voltage
All Voltage Options
Output Voltage
Temperature Coefficient
Line Regulation (Note 4)
Load Regulation (Note 3)
CONDITIONS
(Note 2)
1mA IL 400mA
1mA IL 400mA
(Note1)
6V VIN 20V
IL=1 to 400mA
Dropout Voltage (Note5)
IL=1mA
IL=400mA
Ground Current
IL=1mA
IL=100mA
IL=250mA
IL=400mA
Current Limit
Thermal Regulation
Output Noise, 10Hz to 100kHz
IL=100mA
Adjustable 8-Pin Version only
Reference Voltage
Reference Voltage
Feedback Pin Bias Current
VOUT=0
CL=10µF
CL=100µF
Over Temperature
Reference Voltage Temperature
Coefficient
TYP MIN MAX UNITS
3.3
3.3
5.0
5.0
20
1.5
5
60
370
140
1.3
3.4
6
0.05
400
260
1.235
20
20
3.267
3.217
3.333
3.382
V
4.950
4.880
5.050
5.120
V
100 ppm/°C
20 mV
20 mV
30
100 mV
150
400
500
200 µA
300
2 mA
2.5
9 mA
12
15 mA
25
800 mA
0.2 %/W
µV Vrms
1.210
1.185
1.260
1.285
40
60
V
V
nA
ppm/°C
Rev:A Date: 03/30/04
SPX2920 400mA Low Drop Out Voltage Regulator with Shutdown
2
©Copyright 2004 Sipex Corporation



Sipex Corporation SPX2920
ELECTRICAL CHARACTERISTICS
Electrical characteristics at VIN = VO+1V, IO = 1mA, COUT = 2.2µF, TA = 25°C, unless otherwise specified. Boldface applies
over the full operating temperature range.
PARAMETER
CONDITIONS
(Note 2)
TYP MIN MAX UNITS
Feedback Pin Bias Current
Temperature Coefficient
0.1 nA/°C
Error Comparator
Output Leakage Current
V0UT=20V
0.01 1 µA
2
Output Low Voltage
Upper Threshold Voltage
VIN=4.5V
IOUT=400µA
(Note 6)
150 250 mV
400
60 40
25
mV
Lower Threshold Voltage
(Note 6)
75 95 mV
140
Hysteresis
(Note 6)
15
mV
Shutdown Input
Input Logic Voltage
Low (Regulator ON)
High (Regulator OFF)
1.3
0.7
2.0
V
Shutdown Pin Input Current
VS=2.4V
VS=20V
30 50 µA
100
450 600
750
Regulator Output Current
in Shutdown
(Note 7)
3 10
20
µA
Note 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided by
the total temperature range.
Note 2: Additional conditions for the 8-pin versions are feedback tied to 5V/3.3V tap and output tied to output sense
(VOUT = 5V) and VSHUTDOWN 0.8V.
Note 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.
Note 4: Line regulation for the SPX2920 is tested at 150°C for IL = 1 mA. For TJ = 125°C, line regulation is guaranteed
by design.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV 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.
Note 6: 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 95 mV x 5V/1.235 = 384 mV. 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.
Note 7: VSHUTDOWN 2V, VIN 20V, VOUT = 0, Feedback pin tied to 5V/3.3V Tap.
Rev: A Date: 03/30/04
SPX2920 400mA Low Drop Out Voltage Regulator with Shutdown
3
©Copyright 2004 Sipex Corporation





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