SPX29150T-L-5-0/TR [ETC]
IC REG LINEAR 5V 1.5A TO263-3;
| 型号： | SPX29150T-L-5-0/TR |
| 厂家： | 
ETC |
| 描述： | IC REG LINEAR 5V 1.5A TO263-3 输出元件 调节器 |
| 文件： | 总13页 (文件大小：610K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SPX29150/51/52/53
1.5A Low Dropout Voltage Regulator
FEATURES
APPLICATIONS
■ Adjustable Output Down to 1.25V
■ 1% Output Accuracy
■ Powering VGA and Sound Cards
■ LCD Monitors
■ Output Current of 1.5A
■ USB Power Supplies
■
Low Dropout Voltage of 390mV @ 1.5A
■ PowerPC™ Supplies
■ Extremely Tight Load and Line
Regulation
■ SMPS Post Regulators
■ High-efficiency “Green” Computer
Systems
■ High-efficiency Linear Power Supplies
■ Portable Instrumentation
■ Constant Current Regulators
■ Adjustable Power Supplies
■ Battery Chargers
■ 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
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
SPX29152
1
1
2
4
3
VOUT
SPX29150
VOUT
VIN
V
IN
+
+
2
+
+
5
3
10µ F
10µ F
R1
6.8µ F
6.8µ F
ADJ
GND
R2
Figure 1. Fixed Output Linear Regulator
Figure 2. Adjustable Output Linear Regulator
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
1
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.
SPX29150/51
PARAMETER
1.8V Version
CONDITIONS
Typ
Units
Min
Max
IOUT = 10mA
10mA ≤ IOUT ≤ 1.5A, 2.5V ≤ VIN ≤ 16V
1.8
1.8
1.782
1.764
1.818
1.836
Output Voltage
2.5V Version
Output Voltage
3.3V Version
Output Voltage
5.0V Version
Output Voltage
V
V
V
V
IOUT = 10mA
10mA ≤IIOUT≤1.5A, 3.5V≤VVIN ≤1166VV
2.5
2.5
2.475
2.450
2.525
2.550
IOUT = 10mA
10mA ≤IIOUT≤1.5A, 4.3V≤VVIN ≤1166VV
3.3
3.3
3.267
3.234
3.333
3.366
IOUT = 10mA
10mA ≤IIOUT≤1.5A, 6.0V≤VVIN ≤1166VV
5.0
5.0
4.950
4.900
5.050
5.100
All Voltage Options
SPX29150/51/52/53
Line Regulation
IO = 10mA, (VOUT + 1V) ≤ VVIN ≤ 1166VV
0.1
0.2
13
0.5
1
%
%
VIN = VOUT + 1V, 10mA ≤ IOUT≤ IFULL-
LOAD
Load Regulation
∆V
∆T
100
ppm/°C
Output Voltage
Temperature Coefficient
IO = 100mA
IO = 750mA
IO = 1.5A
70
200
Dropout Voltage (Note 1)
(except 1.8V version)
230
390
mV
mA
600
25
IO = 750mA, VIN = VOUT, +1V
IO = 1.5A
12
45
Ground Current (Note 3)
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
400
µVRMS
V
CL = 33µF
260
Adjustable version only
1.228
1.215
1.252
1.265
Reference Voltage
Reference Voltage
1.240
Adjustable version only (Note 8)
1.203
1.277
Adjust Pin
Bias Current
80
120
40
nA
Reference Voltage Tem-
perature
(Note 4)
13
ppm/°C
Coefficient
Adjust Pin Bias
Current Temperature
Coefficient
0.1
nA/°C
Flag Output (Error Comparator) SPX29151/53
1.00
2.00
Output Leakage Current
VOH=16V
0.1
UA
mV
Device set for 5V, VIN=4.5V,
IOL=250µA
300
400
Output Low Voltage
200
Rev B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
2
ELECTRICAL CHARACTERISTICS CONT'D
SPX29150/51
PARAMETER
CONDITIONS
Typ
Units
Min
Max
Upper Threshold
Voltage
40
25
Device set for 5V (Note 5)
60
mV
Lower Threshold
Voltage
95
140
Device set for 5V (Note 5)
Device set for 5V (Note 5)
75
mV
mV
Hysteresis
15
ENABLE input
SPX29151/52
Input Logic Voltage
Low (OFF)
High (ON)
VIN < 10V
0.8
V
2.4V
Enable Input Pin Input
Current
VEN=16V
600
750
100
10
µA
µA
µA
VEN=0.8V
1
2
Regulator Output Cur-
rent in Shutdown
500
(Note 6)
TO-220 Junction to Case, at Tab
TO-220 Junction to Ambient
3
30
Thermal Resistance
TO-263 Junction to Case, at Tab
TO-263 Junction to Ambient
3
32
°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
O.v
I LIMIT
FLAG
1.180v
1.240v
28v
R1*
Reference
+
-
+
-
ADJ
EN
Thermal
shutdown
R2*
GND
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
3
TYPICAL PERFORMANCE CHARACTERISTICS
3.310
3.305
3.300
3.295
3.320
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.290
3.3V Device
Vin = 4.3V
CL = 10µF
3.3V Device
IL = 10mA
CL = 10uF
3.285
3.280
3.280
4
6
8
10
12
14
16
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
Vin (V)
Figure 3. Line Regulation
Figure 4. Load Regulation
80.0
300
70.0
280
260
240
60.0
50.0
40.0
220
200
180
30.0
3.3V Device
IL = 10mA
CL = 10uF
20.0
10.0
3.3V Device
Vin = 4.3V
CL = 10uF
4
6
8
10
12
14
16
0.0
Vin (V)
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
Figure 5. Ground Current vs Load Current
Figure 6. Ground Current vs Input Voltage
600
500
100
90
80
70
60
50
40
400
300
200
3.3V Device
30
20
10
0
Vin = 3.2V
CL = 10uF
3.3V Device
100
0
CL = 10uF
0
0.25
0.5
0.75
1
1.25
1.5
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
IL (A)
Figure 7. Ground Current vs Load Current in Dropout
Figure 8. Dropout Voltage vs Load Current
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
4
TYPICAL PERFORMANCE CHARACTERISTICS
3.320
280
3.310
3.300
270
260
3.290
3.280
3.270
250
240
230
220
210
3.260
3.3V Device
Vin = 4.3V
IL = 10mA
3.3V Device
Vin = 4.3V
IL = 10mA
CL = 10uF
3.250
3.240
3.230
200
190
180
CL = 10uF
3.220
-40
-20
0
20
40
60
80
100
120
-20
0
20
40
60
80
100
120
-40
o
o
Temperature ( C)
Temperature ( C)
Figure 9. Ground Current vs Temperature
Figure 10. Output Voltage vs Temperature at
at ILOAD=10mA
ILOAD=10mA
ꢀ
ꢀ
ꢀ
30
7.00
29
28
27
26
6.80
3.3V Device
Vin = 3.2V
IL = 750mA
CL = 10µF
3.3V Device
Vin = 4.3V
IL = 500mA
6.60
6.40
CL = 10uF
6.20
6.00
25
24
5.80
5.60
23
5.40
22
21
5.20
5.00
20
-40
-20
0
20
40
60
80
100
120
-40
-20
0
20
40
60
80
100
120
o
Temperature ( C)
Temperature (oC)
Figure 12. Ground Current vs Temperature in
Dropout at ILOAD=750mA
Figure 11. Ground Current vs Temperature at
ILOAD=500mA
ꢀ
ꢀ
ꢀ
52.0
50.0
100
95
48.0
46.0
90
44.0
42.0
85
80
75
70
3.3V Device
Vin = 3.2V
IL = 1.5A
3.3V Device
Vin = 4.3V
IL = 1.5A
40.0
38.0
CL = 10uF
CL = 10µF
36.0
-40
-20
0
20
40
60
80
100
120
Temperature (oC)
-40
0
20
40
60
80
100
120
-20
Temperature (oC)
Figure 13. Ground Current vs Temperature at
Figure 14. Ground Current vs Temperature in
ILOAD=1.5A
Dropout at ILOAD=1.5A
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
5
TYPICAL PERFORMANCE CHARACTERISTICS
350
330
500
480
460
310
290
270
440
420
250
230
400
380
3.3V Device
210
190
170
3.3V Device
IL = 750mA
CL = 10uF
360
IL = 750mA
CL = 10uF
340
320
150
-40
-20
0
20
40
60
80
100 120
Temperature (oC)
-40
-20
0
20
40
60
80
100
120
Temperature (oC)
Figure 16. Dropout Voltage vs Temperature at
Figure 15. Dropout Voltage vs Temperature at
ILOAD=1.5A
ILOAD=750mA
35
30
25
20
15
2.00
1.90
3.3V Device
1.80
1.70
1.60
1.50
1.40
1.30
1.20
1.10
1.00
3.3V Device
10
5
0
-40
-20
0
20
40
60
80
100
120
-40
-20
0
20
40
60
80
100
120
o
Temperature (oC)
Temperature ( C)
Figure 17. ENABLE Current vs Temperature at
Figure 18. ENABLE Threshold vs Temperature
VEN=16V
ꢀ
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
6
APPLICATION INFORMATION
The SPX29150/51/52/53 incorporates pro-
tection against over-current faults, reversed
load insertion, over temperature operation,
and positive and negative transient volt-
ages.
TJ = 50 + 7.5 * (1+2+3) = 95°C
Reliable operation is insured.
Capacitor Requirements
The output capacitor is needed to insure
stability and minimize the output noise. The
value of the capacitor varies with the load.
However, a minimum value of 10µF alumi-
numcapacitorwillguaranteestabilityoverall
load conditions. Atantalum capacitor is rec-
ommendedifafasterloadtransientresponse
is needed. If the power source has a high
AC impedance, a 0.1µF ceramic capacitor
between input & ground is recommended.
The output capacitors maximum ESR value
for stable operation is 0.33ohms.
Thermal Considerations
Although the SPX29150/51/52/53 offers
limiting circuitry for overload conditions, it is
still necessary to insure that the maximum
junction temperature is not exceeded in the
application.Heatwillflowthroughthelowest
resistance path, the junction-to-case path.
In order to insure the best thermal flow of
thecomponent,propermountingisrequired.
Consult the heatsink manufacturer for ther-
mal resistance and heat sink design.
Minimum Load Current
TO-220 Design Example:
To ensure proper behavior of the regulator
under light loads, a minimum load of 5mA
for SPX29150/51/52/53 is required.
Assume that VIN = 10V, VOUT = 5V, IOUT =
1.5A, TA = 50°C, θH= 1°C/W, θCH= 2°C/W,
and θJC= 3C°/W, where:
TA = ambient temperature,
Typical Application Circuits
θHA = heatsink to ambient thermal resis-
Figure 19 represents a typical fixed output
regulator. Figure20representsanadjustable
output regulator. The values of R1 and R2
set the output voltage value as follows: VOUT
=VREF * [1 + (R1/R2)]. A minimum value of
10kΩ is recommended for R2 with a range
between 10kΩ and 47kΩ.
tance
θCH = case to heatsink thermal resistance
θJC = junction to case thermal resistance
The power calculated under these condi-
tions is:
PD = (VIN – VOUT) * IOUT = 7.5W.
And the junction temperature is calculated
as
TJ = TA + PD * (θHA + θCH + θJC) or
SPX29152
1
2
4
VOUT
VIN
SPX29150
V
IN
VOUT
+
+
5
3
10µ F
R1
6.8µ F
ADJ
+
+
10µF
GND
6.8µF
R2
Figure 19. Fixed Output Linear Regulator
Figure 20. Adjustable Output Linear Regulator
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
7
PACKAGE PINOUTS
TO-263-5 Package (T5)
TO-263-3 Package (T)
SPX29151
1) ENABLE
2) INPUT
3) GND
SPX29152
1) ENABLE
2) INPUT
SPX29153
1) FLAG
1
2 3 4 5
1
2
3
2) INPUT
3) GND
3) GND
4) OUTPUT
5) FLAG
4) OUTPUT
5) ADJUST
4) OUTPUT
5) ADJUST
VIN GND VOUT
Top View
Front View
*Tab is internally connected to GND
TO-220-3 Package (U)
TO-220-5 Package (U5)
SPX29153
1) FLAG
SPX29151
1) ENABLE
2) INPUT
SPX29152
1
2
3
1) ENABLE
2) INPUT
2) INPUT
3)
GND
4) OUTPUT
5)
3)
3)
GND
4) OUTPUT
5)
GND
4) OUTPUT
5)
FLAG
ADJUST
ADJUST
1 2 3 4 5
VIN
GNDVOUT
Top View
Front View
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
8
PACKAGE: 3 PIN TO-263
E
Seating
Plane
A
E/2
C2
L1
SIDE VIEW
H
D
Chamfer
Optional
1
2
3
c
e
See Detail C
b
b2
Gauge Plane
Seating
Plane
FRONT VIEW
θ
L3
A1
L
DETAIL C
Thermal
Pad
3 Pin TO-263 JEDEC TO-263
Variation AA
Millimeters
Conversion Factor:
1 Inch = 25.40 mm
(L1)
Inches
Controlling Dimension
SYMBOL
MIN
NOM
-
-
-
-
-
-
-
MAX
0.190
0.010
0.039
0.070
0.029
0.065
0.380
-
MIN
4.06
0.00
0.51
1.14
0.38
1.14
8.38
6.86
9.65
6.22
NOM
-
-
-
-
-
-
-
MAX
D1
A
A1
b
b2
c
c2
D
D1
E
0.160
0.000
0.020
0.045
0.015
0.045
0.330
0.270
0.380
0.245
4.83
0.25
0.99
1.78
0.74
1.65
9.65
-
-
-
-
-
-
-
0.420
-
10.67
-
E1
e
.100 BSC
2.54 BSC
H
L
L1
L3
O
0.575
0.070
-
-
-
-
0.625
0.110
0.066
14.61
1.78
-
-
-
-
15.88
2.79
1.68
BACK
VIEW
.010 BSC
-
0.25 BSC
-
0˚
8˚
0˚
8˚
E1
EXAR Pkg Signoff Date/Rev:
JL Aug5-05 / Rev A
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
9
PACKAGE: 5 PIN TO-263
Seating
Plane
E
A
E/2
C2
L1
Chamfer
Optional
H
D
1
4
3
5
2
c
SIDE VIEW
See Detail C
e
b
FRONT VIEW
Gauge Plane
Seating
Plane
θ
L3
DETAIL C
A1
L
Thermal
Pad
BACK VIEW
5 Pin TO-263 JEDEC TO-263
Variation BA
(L1)
Dimensions in Millimeters
Conversion Factor:
1 Inch = 25.40 mm
Dimensions in Inches:
Controlling Dimension
SYMBOL
MIN
NOM
MAX
0.190
0.010
0.039
0.029
0.065
0.380
-
MIN
4.06
0.00
0.51
0.38
1.14
8.38
6.86
9.65
6.22
NOM
MAX
4.83
0.25
0.99
0.74
1.65
9.65
-
D1
A
A1
b
c
c2
D
D1
E
E1
e
0.160
0.000
0.020
0.015
0.045
0.330
0.270
0.380
0.245
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.420
-
10.67
-
-
-
.067 BSC
1.702 BSC
H
L
L1
L3
O
0.575
0.070
-
-
-
-
0.625
0.110
0.066
14.61
1.78
-
-
-
-
15.88
2.79
1.68
.010 BSC
-
0.254 BSC
-
0˚
8˚
0˚
8˚
EXAR Pkg Signoff Date/Rev:
JL Jun12-06 / Rev B
E1
REV B 06/05/08
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2008 Exar Corporation
10
PACKAGE: 3 PIN TO-220
Rev B 06/05/08
SP29ꢀ50/5ꢀ/52/53 ꢀ.5A Low Dropout voltagꢁ Rꢁgulator
© Copyright 2008 Exar Corporation
ꢀꢀ
PACKAGE: 5 PIN TO-220
Rev B 06/05/08
SP29ꢀ50/5ꢀ/52/53 ꢀ.5A Low Dropout voltagꢁ Rꢁgulator
© Copyright 2008 Exar Corporation
ꢀ2
PACKAGE: 3 PIN TO-220
Rev B 06/05/08
SP29ꢀ50/5ꢀ/52/53 ꢀ.5A Low Dropout voltagꢁ Rꢁgulator
© Copyright 2008 Exar Corporation
ꢀꢀ
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