Voltage Regulator. SPX29151 Datasheet

SPX29151 Regulator. Datasheet pdf. Equivalent


Sipex Corporation SPX29151
www.DataSheet4U.com
SPX29150/51/52/53
1.5A Low Dropout Voltage Regulator
FEATURES
■ Adjustable Output Down to 1.25V
■ 1% Output Accuracy
■ Output Current of 1.5A
■ Low Dropout Voltage of 390mV @ 1.5A
■ Extremely Tight Load and Line
Regulation
■ Extremely Fast Transient Response
■ Reverse-Battery Protection
■ Zero Current Shutdown (5 pin version)
■ Error Flag Signal Output for Out of
Regulation State (5 pin version)
■ Standard TO-220 and TO-263
Packages
APPLICATIONS
■ Powering VGA and Sound Cards
■ LCD Monitors
■ USB Power Supplies
■ PowerPC™ Supplies
■ SMPS Post Regulators
■ High-efficiency “Green” Computer
Systems
■ High-efficiency Linear Power Supplies
■ Portable Instrumentation
■ Constant Current Regulators
■ Adjustable Power Supplies
■ Battery Chargers
DESCRIPTION
The SPX29150/51/52/53 are 1.5A, highly accurate voltage regulators with a low dropout
voltage of 390mV (typical) @ 1.5A. These regulators are specifically designed for low volt-
age applications that require a low dropout voltage and a fast transient response. They are
fully fault protected against over-current, reverse battery, and positive and negative voltage
transients. On-chip trimming adjusts the reference voltage to 1% initial accuracy. Other
features in the 5 pin versions include Enable and Error Flag.
The SPX29150/51/52/53 is offered in 3-pin and 5-pin TO-220 & TO-263 packages. For a 3A
version, refer to the SPX29300 data sheet.
TYPICAL APPLICATION CIRCUITs
VIN
+
6.8µ F
1 SPX29150 3
2
VOUT
+ 10µ F
VIN
+
6.8µ F
1 SPX29152 4
23
GND
5
ADJ
VOUT
+
R1
10µ F
R2
Figure 1. Fixed Output Linear Regulator
Figure 2. Adjustable Output Linear Regulator
Rev A 8/15/06
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator

© Copyright 2006 Sipex Corporation


SPX29151 Datasheet
Recommendation SPX29151 Datasheet
Part SPX29151
Description (SPX29150 - SPX29153) Low Dropout Voltage Regulator
Feature SPX29151; www.DataSheet4U.com SPX29150/51/52/53 1.5A Low Dropout Voltage Regulator FEATURES ■ Adjustable Out.
Manufacture Sipex Corporation
Datasheet
Download SPX29151 Datasheet




Sipex Corporation SPX29151
ABSOLUTE MAXIMUM RATINGS
Storage Temperature Range ........................-65°C to +150°C
Operating Junction Temperature Range...... -40°C to +125°C
Input Voltage (Note 7)......................................................16V
ELECTRICAL CHARACTERISTICS
at Vin=Vout + 1V and Iout = 10mA, Cin = 6.8µF, Cout = 10µF, Ta = 25°C, unless otherwise specified. The Boldface
applies over the junction temperature range. Adjustable versions are set to 5.0V.
PARAMETER
CONDITIONS
Typ
SPX29150/51
Min Max
Units
1.8V Version
Output Voltage
Iout = 10mA
10mA ≤ Iout ≤ 1.5A, 2.5V ≤ Vin ≤ 16V
1.8
1.8
1.782
1.764
1.818
1.836
V
2.5V Version
Output Voltage
3.3V Version
Iout = 10mA
10mA ≤��Iout≤1��.5�A��,��3�.5��V�≤��V��in 16V
2.5 2.475 2.525
2.5 2.450 2.550
V
Output Voltage
Iout = 10mA
10mA ≤��Iout≤1��.5�A��,��4�.3��V�≤��V��in 16V
3.3 3.267 3.333
3.3 3.234 3.366
V
5.0V Version
Output Voltage
All Voltage Options
SPX29150/51/52/53
Line Regulation
Iout = 10mA
10mA ≤��Iout≤1��.5�A��,��6�.0��V�≤��V��in 16V
Io = 10mA, (Vout + 1V) ≤��Vin ≤�16V
5.0 4.950 5.050
5.0 4.900 5.100
V
0.1 0.5 %
Load Regulation
Vin = Vout + 1V, 10mA ≤ Iout≤ Ifull-
load
0.2
1%
VT
Output Voltage
13 100 ppm/°C
Temperature Coefficient
Dropout Voltage (Note 1)
(except 1.8V version)
Ground Current (Note 3)
Io = 100mA
Io = 750mA
Io = 1.5A
Io = 750mA, Vin = Vout, +1V
Io = 1.5A
70
230
390
12
45
200
mV
600
25 mA
Ignddo Ground Pin Cur-
rent at Dropout
Vin = 0.1V less than specified Vout
Iout = 10mA
0.9
mA
Current Limit
Vout = 0.0V (Note 2)
2.2 1.7
A
Output Noise Voltage
(10Hz to 100kHz)
Il = 100mA
Cl = 10µF
Cl = 33µF
400
µVrms
260
Reference Voltage
Adjustable version only
1.240
1.228
1.215
1.252
1.265
V
Reference Voltage
Adjustable version only (Note 8)
1.203 1.277
Adjust Pin
Bias Current
40
80
120
nA
Reference Voltage Tem-
perature
Coefficient
(Note 4)
13 ppm/°C
Adjust Pin Bias
Current Temperature
Coefficient
0.1 nA/°C
Flag Output (Error Comparator) SPX29151/53
Output Leakage Current Voh=16V
0.1
1.00
2.00
UA
Output Low Voltage
Device set for 5V, Vin=4.5V,
Iol=250µA
200
300
400
mV
Rev A 8/15/06
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2006 Sipex Corporation




Sipex Corporation SPX29151
ELECTRICAL CHARACTERISTICS cont'd
PARAMETER
Upper Threshold
Voltage
Lower Threshold
Voltage
Hysteresis
ENABLE input
SPX29151/52
Input Logic Voltage
Low (OFF)
High (ON)
Enable Input Pin Input
Current
CONDITIONS
Device set for 5V (Note 5)
Device set for 5V (Note 5)
Device set for 5V (Note 5)
Vin < 10V
Ven=16V
Ven=0.8V
Regulator Output Cur-
rent in Shutdown
Thermal Resistance
(Note 6)
TO-220 Junction to Case, at Tab
TO-220 Junction to Ambient
TO-263 Junction to Case, at Tab
TO-263 Junction to Ambient
Typ
60
75
15
100
10
3
30
3
32
SPX29150/51
Min Max
40
25
95
140
2.4V
0.8
600
750
1
2
500
Units
mV
mV
mV
V
µA
µA
µA
°C/W
NOTES:
Note 1: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its nominal value.
Note 2: Vin = Vout (NOMINAL) +1V. For example, use Vin = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize temperature rise.
Note 3: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground
current.
Note 4: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line
regulation effects.
Note 5: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured 6V
input. To express these thresholds in terms of output voltage change, multiply the error amplifier gain = Vout/Vref = (R1 + R2)/R2. For example, at
a programmable output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Thresholds
remain constant as a percent of Vout as Vout is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.
Note 6: Ven ≤ 0.8V and Vin ≤ 16V, Vout = 0.
Note 7: Maximum positive supply voltage of 20V must be of limited duration (<100m_) < 1%. The maximum continuous supply voltage is 16V.
Note 8: Vref ≤ Vout ≤ (Vin-1), 2.5V≤Vin ≤ 16V, 10mA ≤ Il ≤ Ifl, Tj < Tjmax.
BLOCK DIAGRAM
IN OUT
FLAG
+ 1.180v Reference 1.240v +
O.v
I LIMIT
28v
R1*
--
ADJ
EN
Thermal
shutdown
R2*
Rev A 8/15/06
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator

GND
© Copyright 2006 Sipex Corporation





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