SPX29151T5-2.5-L [SIPEX]
Regulator,;
| 型号： | SPX29151T5-2.5-L |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Regulator, 线性稳压器IC 调节器 电源电路 输出元件 |
| 文件： | 总9页 (文件大小：79K) |
| 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 DropoutVoltage Regulator
Adjustable & Fixed Output, Fast Response Time
FEATURES
APPLICATIONS
■ Adjustable Output Down To 1.25V
■ 1% Output Accuracy
■ Powering VGA & Sound Card
■ LCD Monitors
■ Output Current of 1.5A
■ USB Power Supply
■ Low Dropout Voltage of 390mV @
1.5A
■ Extremely Tight Load and Line
Regulation
■ Power PC™ Supplies
■ SMPS Post Regulator
■ High Efficiency “Green” Computer
Systems
■ 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)
■ High Efficiency Linear Power Supplies
■ Portable Instrumentation
■ Constant Current Regulators
■ Adjustable Power Supplies
■ Battery Charger
■ Standard TO-220 and TO-263
Now Available in Lead Free Packaging
Packages
Refer to page 8 for pinouts.
DESCRIPTION
The SPX29150/51/52/53 are 1.5A, highly accuracy voltage regulators with a low drop out
voltageof390mVdropout(typical)@1.5A. Theseregulatorsarespecificallydesignedforlow
voltage 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.
TheSPX29150/51/52/53isofferedin3&5-pinTO-220&TO-263packages. Fora3Aversion,
refer to the SPX29300 data sheet.
TYPICAL APPLICATION CIRCUIT
SPX29152
1
2
4
V
1
3
SPX29150
V
VOUT
V
OUT
IN
6.8 F
IN
+
+
2
5
+
+
3
10 F
10 F
R1
6.8 F
ADJ
GND
R2
Figure 1. Fixed Output Linear Regulator
Figure 2. Adjustable Output Linear Regulator
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
Lead Temperature (soldering, 5 seconds) ................260°C
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
Fixed Voltage Options
1.8V Version
CONDITIONS
TYP
MIN
MAX
UNITS
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
V
V
V
2.5V Version
Output Voltage
IOUT = 10mA
10mA ≤ IOUT ≤ 1.5A, 3.5V ≤ VIN ≤ 16V
2.5
2.5
2.475
2.450
2.525
2.550
3.3V Version
Output Voltage
IOUT = 10mA
10mA ≤ IOUT ≤ 1.5A, 4.3V ≤ VIN ≤ 16V
3.3
3.3
3.267
3.234
3.333
3.366
5.0V Version
Output Voltage
IOUT = 10mA
5.0
4.950
5.050
10mA ≤ IOUT ≤ 1.5A, 6.0V ≤ VIN ≤ 16V
5.0
4.900
5.100
All Voltage Options
Line Regulation
Load Regulation
∆V/∆T
SPX29150/51/52/53
IOUT=10mA,(VOUT+1V) ≤ VIN ≤ 16V
VIN=VOUT+1V, 10mA≤ IOUT ≤ IFULLLOAD
VOUT Temp Coefficient
0.1
0.2
13
0.5
1
%
%
100
200
ppm/°C
mV
Dropout Voltage
(Note 1, except 1.8V)
IOUT=100mA
IOUT=750mA
IOUT=1.5A
70
230
390
600
25
Ground Current
(Note 3)
IOUT=750mA, VIN=VOUT+1V
IOUT=1.5A
12
45
mA
mA
Ground Pin Current
at Dropout
VIN=0.1V less than specified VOUT,
IOUT=10mA
0.9
Current Limit
VOUT=0V (Note 2)
2.2
1.7
A
Output Noise Voltage
(10Hz to 100kHz)
IL=100mA
CL=10µF
400
µVRMS
CL=33µF
260
Reference Voltage
Adjustable version only
1.240
1.228
1.252
V
1.215
1.265
Reference Voltage
Adjustable version only (Note 8)
(Note 4)
1.203
1.277
Adjust Pin Bias Current
40
13
80
120
nA
Reference Voltage
Temp. Coeff.
ppm/°C
nA/°C
Adjust Pin Bias
0.1
Current Temp. Coeff.
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
2
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
MIN
MAX
UNITS
FLAG OUTPUT (ERROR COMPARATOR)
SPX29150/29151/29153
Output Leakage
Current
VOH=16V
0.1
200
60
1
2
µA
mV
mV
mV
mV
Output Low Voltage
Device set for 5V,VIN=4.5V, IOL=250µA
Device set for 5V, (Note 5)
Device set for 5V, (Note 5)
Device set for 5V, (Note 5)
300
400
Upper Threshold
Voltage
40
25
Lower Threshold
Voltage
75
95
140
Hysteresis
15
ENABLE Input
SPX29151/29152
Input Logic Voltage
Low (OFF)
VIN<10V
0.8
V
High (ON)
2.4
ENABLE Input Pin
VEN=16V
VEN=0.8V
100
10
600
750
1
µA
µA
2
Regulator Output
(Note 6)
500
µA
Current in Shutdown
Thermal Resistance
TO-200 Junction to Case, at Tab
TO-220 Junction to Ambient
TO-263Junction to Case, at Tab
TO-263 Junction to Ambient
3
60
3
°C/W
60
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: V = V (NOMINAL) +1V. For example, use V = 4.3V for a 3.3V regulator. Employ pulse-testing procedures to minimize temperature rise.
IN
OUT
IN
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 = V
/V
= (R1 + R2)/R2. For example, at a programmable
OUT REF
output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Threshold remain constant as a percent of
as V is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.
V
OUT
OUT
Note 6: V ≤ 0.8V and V ≤ 16V, V = 0.
EN
IN
OUT
Note 7: Maximum positive supply voltage of 20V must be of limited duration (<100m_) < 1%. The maximum continuous supply voltage is 16V.
Note 8: V ≤ V ≤ (V -1), 2.5V≤V ≤ 16V, 10mA ≤ I ≤ I , T < T
.
jmax
REF
OUT
IN
IN
L
FL
j
BLOCK DIAGRAM
IN
OUT
O.V
ILIMIT
1.180V
FLAG
1.240V
28V
R1*
Reference
+
-
+
-
ADJ
EN
Thermal
Shutdown
R2*
GND
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex 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 = 10 F
3.3V Device
IL = 10mA
CL = 10 F
3.285
3.280
3.280
4
6
8
10
Vin (V)
12
14
16
0
0.25
0.5
0.75
1
1.25
1.5
IL (A)
Figure 3. Line Regulation
Figure 4. Load Regulation
80.0
70.0
300
280
260
240
60.0
50.0
40.0
30.0
220
200
180
3.3V Device
IL = 10mA
CL = 10 F
20.0
10.0
3.3V Device
Vin = 4.3V
CL = 10 F
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 = 10 F
3.3V Device
100
0
CL = 10 F
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
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
4
TYPICAL PERFORMANCE CHARACTERISTICS
3.320
280
270
3.310
3.300
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 = 10 F
3.250
3.240
3.230
200
190
180
CL = 10 F
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
at ILOAD=10mA
Figure 10. Output Voltage vs Temperature at
ILOAD=10mA
30
29
7.00
6.80
3.3V Device
3.3V Device
Vin = 4.3V
IL = 500mA
28
27
26
6.60
6.40
Vin = 3.2V
IL = 750mA
CL = 10 F
CL = 10 F
6.20
6.00
25
24
5.80
5.60
23
5.40
5.20
22
21
5.00
20
-40
-20
0
20
40
60
o
80
100
120
-40
-20
0
20
40
60
80
100
120
Temperature (oC)
Temperature ( C)
Figure 11. Ground Current vs Temperature at
ILOAD=500
Figure 12. Output Voltage vs Temperature in Dropout
at ILOAD=750mA
52.0
50.0
100
95
48.0
46.0
90
44.0
42.0
85
3.3V Device
3.3V Device
Vin = 4.3V
IL = 1.5A
80
75
70
Vin = 3.2V
IL = 1.5A
CL = 10 F
40.0
38.0
CL = 10 uF
36.0
-40
-20
0
20
40
60
80
100
120
-40
0
20
40
60
80
100
120
-20
Temperature (oC)
Temperature (oC)
Figure 13. Ground Current vs Temperature at
ILOAD=1.5A
Figure 14. Output Current vs Temperature in Dropout
at ILOAD=1.5A
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex 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 = 10 F
360
IL = 750mA
CL = 10 F
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
ILOAD=1.5A
Figure 15. Dropout Voltage vs Temperature at
ILOAD=750mA
2.00
1.90
35
30
3.3V Device
1.80
1.70
25
20
1.60
1.50
15
1.40
1.30
1.20
1.10
10
5
3.3V Device
1.00
0
-40
-20
0
20
40
60
80
100
120
-40
-20
0
20
40
60
80
100
120
Temperature (oC)
Temperature (oC)
Figure 17. ENABLE Current vs Temperature at VEN=16V
Figure 18. ENABLE Threshold vs Temperature
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
6
APPLICATION INFORMATION
The SPX29150/51/52/53 incorporates protec-
tion against over-current faults, reversed load
insertion, over temperature operation, and
positive and negative transient voltage.
And the junction temperature is calculated as
TJ = TA + PD * (θHA + θCH + θJC) or
TJ = 50 + 7.5 * (1+2+3) = 95°C
Reliable operation is insured.
Thermal Considerations
Capacitor Requirements
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. Heat will flow through the lowest
resistance path, the junction-to-case path. In
order to insure the best thermal flow of the
component, proper mounting is required.
Consult the heatsink manufacturer for thermal
resistance and heat sink design.
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-
num capacitor will guarantee stability over all
load conditions. A tantalum capacitor is
recommended if a faster load transient
response is needed. If the power source has a
high AC impedance, a 0.1µF ceramic capaci-
tor between input & ground is recommended.
TO-220 Design Example:
Assume that VIN = 10V, VOUT = 5V, IOUT
1.5A, TA = 50°C, θHA= 1°C/W, θCH= 2°C/W,
and θJC= 3C°/W, where:
Minimum Load Current
=
To ensure a proper behavior of the regulator
under light load, a minimum load of 5mA for
SPX29150/51/52/53 is required.
TA = ambient temperature,
θ
θ
θ
HA= heatsink to ambient thermal
resistance
Typical Application Circuits
Figure 19 represents at typical fixed output
regulator. Figure 20 represents an adjustable
output regulator. The values of R1 and R2 set
the output voltage value as follows: VOUT
=VREF * [1 + (R1/R2)]. For best results, the
total series resistance should be small enough
to pass a minimum regulator load current of
5mA. A minimum value of 10kΩ is recom-
mended for R2 with a range between 10kΩ
and 47kΩ.
CH= case to heatsink thermal
resistance
JC = junction to case thermal
resistance
The power calculated under these conditions
is:
PD = (VIN – VOUT) * IOUT = 7.5W.
SPX29152
1
2
4
V
1
3
SPX29150
V
VOUT
V
OUT
IN
6.8 F
IN
+
+
2
5
+
+
3
10 F
10 F
R1
6.8 F
ADJ
GND
R2
Figure 19. Fixed Output Linear Regulator
Figure 20. Adjustable Output Linear Regulator
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex 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
3) GND
SPX29153
1) FLAG
1
2
3 4 5
1
2
3
2) INPUT
3)
GND
4) OUTPUT
5)
4) OUTPUT
4) OUTPUT
5)
5)
ADJUST
ADJUST
FLAG
V IN
V OUT
GND
Top View
Front View
TO-220-3 Package (U)
TO-220-5 Package (U5)
SPX29153
SPX29151
1) ENABLE
2) INPUT
SPX29152
1)
2)
3)
4)
5)
1)
2)
3)
4)
5)
ENABLE
INPUT
FLAG
1
2
3
INPUT
GND
3)
4)
5)
GND
GND
OUTPUT
FLAG
OUTPUT
ADJUST
OUTPUT
ADJUST
1
2
3
4
5
*Tab is internally connected to GND
VIN
GND VOUT
Top View
Front View
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
8
ORDERING INFORMATION
PART NUMBER
ACCURACY OUTPUT VOLTAGE
PACKAGE
SPX29150U-1.8
SPX29150U-2.5
SPX29150U-3.3
SPX29150U-5.0
SPX29150T-1.8
SPX29150T-1.8/TR
SPX29150T-2.5
SPX29150T-2.5/TR
SPX29150T-3.3
SPX29150T-3.3/TR
SPX29150T-5.0
SPX29150T-5.0/TR
SPX29151U5-1.8
SPX29151U5-2.5
SPX29151U5-3.3
SPX29151U5-5.0
SPX29151T5-1.8
SPX29151T5-1.8/TR
SPX29151T5-2.5
SPX29151T5-2.5/TR
SPX29151T5-3.3
SPX29151T5-3.3/TR
SPX29151T5-5.0
SPX29151T5-5.0/TR
SPX29152T5
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.0%
1.8V
2.5V
3.3V
5.0V
1.8V
1.8V
2.5V
2.5V
3.3V
3.3V
5.0V
5.0V
1.8V
2.5V
3.3V
5.0V
1.8V
1.8V
2.5V
2.5V
3.3V
3.3V
5.0V
5.0V
Adj
3 lead TO-220
3 lead TO-220
3 lead TO-220
3 lead TO-220
3 lead TO-263
3 lead TO-263
3 lead TO-263
3 lead TO-263
3 lead TO-263
3 lead TO-263
3 lead TO-263
3 lead TO-263
5 lead TO-220
5 lead TO-220
5 lead TO-220
5 lead TO-220
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-263
5 lead TO-220
5 lead TO-263
5 lead TO-263
5 lead TO-220
SPX29152T5/TR
SPX29152U5
Adj
Adj
SPX29153T5
Adj
SPX29153T5/TR
SPX29153U5
Adj
Adj
Available in lead free packaging. To order add “-L” suffix to part number.
Example: SPX29153T5/TR = standard; SPX29153T5-L/TR = lead free
Sipex Corporation
Headquarters and
Corporation
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
ANALOG EXCELLENCE
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
Date:5/25/04
SP29150/51/52/53 1.5A Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
9
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