CS5204-1GDP3 [ONSEMI]
4.0 A Adjustable, and 3.3 V and 5.0 V Fixed Linear Regulators; 4.0可调， 3.3 V和5.0 V固定线性稳压器
| 型号： | CS5204-1GDP3 |
| 厂家： | 
ONSEMI |
| 描述： | 4.0 A Adjustable, and 3.3 V and 5.0 V Fixed Linear Regulators |
| 文件： | 总10页 (文件大小：76K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CS5204−1, CS5204−3,
CS5204−5
4.0 A Adjustable, and
3.3 V and 5.0 V Fixed
Linear Regulators
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The CS5204−x series of linear regulators provides 4.0 A at
adjustable and fixed voltages with an accuracy of ±1.0% and ±2.0%
respectively. The adjustable version uses two external resistors to set
the output voltage within a 1.25 V to 13 V range.
Adjustable
Output
The regulators are intended for use as post regulators and
microprocessor supplies. The fast loop response and low dropout
voltage make these regulators ideal for applications where low voltage
operation and good transient response are important.
TO−220−3
T SUFFIX
CASE 221A
Tab = V
OUT
Pin 1. Adj
2. V
OUT
3. V
IN
The circuit is designed to operate with dropout voltages as low as
1.0 V depending on the output current level. The maximum quiescent
current is only 10 mA at full load.
The regulators are fully protected against overload conditions with
protection circuitry for Safe Operating Area (SOA), overcurrent and
thermal shutdown.
1
Fixed
2
3
Output
2
Tab = V
D PAK−3
OUT
Pin 1. GND
DP SUFFIX
CASE 418AB
2. V
OUT
3. V
1
IN
2
3
The regulators are available in TO−220−3 and surface mount
2
D PAK−3 packages.
MARKING DIAGRAMS
2
TO−220−3
D PAK−3
Features
• Output Current to 4.0 A
• Output Trimmed to ±1.0%
• Dropout Voltage 1.10 V @ 4.0 A
• Fast Transient Response
• Fault Protection Circuitry
− Thermal Shutdown
CS5204−X
AWLYWW
CS5204−X
AWLYWW
1
1
− Overcurrent Protection
− Safe Area Protection
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
V
OUT
See detailed ordering and shipping information in the package
V
IN
dimensions section on page 7 of this data sheet.
Output
Current
Limit
Thermal
Shutdown
−
+
Error
Amplifier
Adj
Bandgap
Figure 1. Block Diagram − CS5204−1
Semiconductor Components Industries, LLC, 2004
1
Publication Order Number:
January, 2004 − Rev. 8
CS5204−1/D
CS5204−1, CS5204−3, CS5204−5
V
OUT
V
IN
Output
Current
Limit
Thermal
Shutdown
−
+
Error
Amplifier
Bandgap
GND
Figure 2. Block Diagram − CS5204−3, −5
Parameter
MAXIMUM RATINGS*
Value
17
Unit
V
Supply Voltage, V
CC
Operating Temperature Range
Junction Temperature
−40 to +70
150
°C
°C
°C
Storage Temperature Range
Lead Temperature Soldering:
−60 to +150
Wave Solder (through hole styles only) Note 1
Reflow (SMD styles only) Note 2
260 Peak
230 Peak
°C
1. 10 second maximum.
2. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.
ELECTRICAL CHARACTERISTICS (C = 10 mF, C
= 22 mF Tantalum, V − V
= 3.0 V, V ≤ 15 V,
OUT IN
IN
OUT
IN
0°C ≤ T ≤ 70°C, T ≤ +150°C, unless otherwise specified, I
= 4.0 A.)
A
J
full load
Characteristic
Test Conditions
Min
Typ
Max
Unit
Adjustable Output Voltage (CS5204−1)
Reference Voltage (Notes 3 and 4)
V
− V
= 1.5 V; V = 0 V,
1.241
(−1%)
1.254
1.266
(+1%)
V
IN
OUT
Adj
10 mA ≤ I
≤ 4.0 A
OUT
Line Regulation
1.5 V ≤ V − V
≤ 6.0 V; I = 10 mA
OUT
−
−
−
0.04
0.05
1.1
0.20
0.4
%
%
V
IN
OUT
Load Regulation (Notes 3 and 4)
Dropout Voltage (Note 5)
Current Limit
V
IN
− V
= 1.5 V; 10 mA ≤ I
≤ 4.0 A
OUT
OUT
I
= 4.0 A
1.2
OUT
V
IN
V
IN
− V
− V
= 3.0 V; T ≥ 25°C
= 9.0 V
4.5
−
8.5
1.0
−
−
A
A
OUT
OUT
J
Minimum Load Current
Adjust Pin Current
V
− V
= 7.0 V
−
−
−
1.2
50
6.0
100
5.0
mA
mA
mA
IN
OUT
−
Adjust Pin Current Change
1.5 V ≤ V − V
≤ 4.0 V;
0.2
IN
OUT
10 mA ≤ I
≤ 4.0 A
OUT
Thermal Regulation
30 ms pulse; T = 25°C
−
0.003
−
%/W
A
3. Load regulation and output voltage are measured at a constant junction temperature by low duty cycle pulse testing. Changes in output
voltage due to thermal gradients or temperature changes must be taken into account separately.
4. Specifications apply for an external Kelvin sense connection at a point on the output pin 1/4” from the bottom of the package.
5. Dropout voltage is a measurement of the minimum input/output differentials at full load.
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2
CS5204−1, CS5204−3, CS5204−5
ELECTRICAL CHARACTERISTICS (continued) (C = 10 mF, C
= 22 mF Tantalum, V − V
= 3.0 V, V ≤ 15 V,
OUT IN
IN
OUT
IN
0°C ≤ T ≤ 70°C, T ≤ +150°C, unless otherwise specified, I
= 4.0 A.)
A
J
full load
Characteristic
Test Conditions
Min
Typ
Max
Unit
Adjustable Output Voltage (CS5204−1) (continued)
Ripple Rejection
f = 120 Hz; C = 25 mF; I
= 4.0 A
−
−
82
0.5
−
−
−
−
−
dB
%
Adj
OUT
Temperature Stability
RMS Output Noise
−
10 Hz ≤ f ≤ 10 kHz; T = 25°C
−
0.003
180
25
%V
OUT
A
Thermal Shutdown
−
−
150
−
°C
°C
Thermal Shutdown Hysteresis
ELECTRICAL CHARACTERISTICS (C = 10 mF, C
= 22 mF Tantalum, V − V
= 3.0 V, V ≤ 10 V,
OUT IN
IN
OUT
IN
0°C ≤ T ≤ 70°C, T ≤ +150°C, unless otherwise specified, I
= 4.0 A.)
A
J
full load
Characteristic
Test Conditions
Min
Typ
Max
Unit
Fixed Output Voltage (CS5204−3, CS5204−5)
Reference Voltage (Notes 6 and 7)
CS5204−5
CS5204−3
V
IN
V
IN
− V
− V
= 1.5 V; 0 ≤ IOUT ≤ 4.0 A
= 1.5 V; 0 ≤ IOUT ≤ 4.0 A
4.9 (−2%)
3.234 (−2%)
5.0
3.3
5.1 (+2%)
3.366 (+2%)
V
V
OUT
OUT
Line Regulation
1.5 V ≤ V − V
≤ 6.0 V; I = 10 mA
OUT
−
−
−
0.04
0.05
1.1
0.20
0.4
%
%
V
IN
OUT
Load Regulation (Notes 6 and 7)
Dropout Voltage (Note 8)
Current Limit
V
IN
− V
= 1.5 V; 10 mA ≤ I
≤ 4.0 A
OUT
OUT
I
= 4.0 A
1.2
OUT
V
IN
V
IN
− V
− V
= 3.0 V; T ≥ 25°C
= 9.0 V
4.5
−
8.5
1.0
−
−
A
A
OUT
OUT
J
Quiescent Current
Thermal Regulation
Ripple Rejection
V
≤ 9.0 V; I
= 10 mA
−
−
5.0
0.003
75
10
−
mA
%/W
dB
IN
OUT
30 ms pulse; T = 25°C
A
f = 120 Hz; I
= 4.0 A
−
−
−
OUT
Temperature Stability
−
0.5
−
%
RMS Output Noise (%V
Thermal Shutdown
)
10 Hz ≤ f ≤ 10 kHz
−
0.003
180
25
−
%V
OUT
OUT
−
−
150
−
−
°C
°C
Thermal Shutdown Hysteresis
−
6. Load regulation and output voltage are measured at a constant junction temperature by low duty cycle pulse testing. Changes in output
voltage due to thermal gradients or temperature changes must be taken into account separately.
7. Specifications apply for an external Kelvin sense connection at a point on the output pin 1/4” from the bottom of the package.
8. Dropout voltage is a measurement of the minimum input/output differentials at full load.
PACKAGE PIN DESCRIPTION
Package Pin Number
CS5204−1
CS5204−3, −5
2
2
D PAK−3
TO−220−3
D PAK−3
TO−220−3
Pin Symbol
Function
1
2
1
2
N/A
2
N/A
2
Adj
Adjust pin (low side of the internal reference).
V
OUT
Regulated output voltage (case).
Input voltage.
3
3
3
3
V
IN
N/A
N/A
1
1
GND
Ground connection.
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CS5204−1, CS5204−3, CS5204−5
TYPICAL PERFORMANCE CHARACTERISTICS
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.10
0.08
0.06
0.04
T
= 0°C
CASE
0.02
0.00
−0.02
−0.04
−0.06
−0.08
−0.10
−0.12
T
= 125°C
CASE
T
= 25°C
CASE
0.85
0.80
0.75
0.70
0
1
2
Output Current (A)
3
4
0
10 20 30 40 50 60 70 80 90 100 110 120 130
T (°C)
J
Figure 3. Dropout Voltage vs. Output
Current
Figure 4. Reference Voltage vs.
Temperature
0.200
0.175
0.150
0.125
0.100
2.500
2.175
1.850
1.525
1.200
0.875
0.550
T
= 0°C
CASE
T
= 25°C
CASE
0.075
0.050
0.025
0
T
= 25°C
CASE
T
= 125°C
CASE
1
T
= 125°C
CASE
7
T
= 0°C
CASE
3
0
2
4
1
2
3
4
5
6
8
9
Output Current (A)
V
IN
− V
(V)
OUT
Figure 5. Load Regulation vs. Output
Current
Figure 6. Minimum Load Current
100
90
80
70
60
50
40
30
20
10
0
70
65
60
55
50
45
I
= 10 mA
O
T
= 25°C
= 4.0 A
CASE
I
OUT
(V − V
V
) = 3.0 V
OUT
IN
= 1.6 V
RIPPLE
PP
40
0
1
2
3
4
5
10 20 30 40 50 60 70 80 90 100 110 120 130
10
10
10
10
10
Temperature (°C)
Frequency (Hz)
Figure 7. Adjust Pin Current vs.
Temperature
Figure 8. Ripple Rejection vs. Frequency
(Fixed Versions)
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4
CS5204−1, CS5204−3, CS5204−5
100
90
80
70
60
50
40
30
20
10
0
T
= 25°C
= 4.0 A
CASE
I
OUT
(V − V
V
C
) = 3.0 V
OUT
IN
= 1.6 V
PP
RIPPLE
= 25 mF
Adj
1
2
3
4
5
10
10
10
10
10
Frequency (Hz)
Figure 9. Ripple Rejection vs. Frequency
(Adjustable Versions)
APPLICATIONS INFORMATION
The CS5204−x family of linear regulators provides fixed
or adjustable voltages at currents up to 4.0 A. The regulators
are protected against short circuit, and include thermal
shutdown and safe area protection (SOA) circuitry. The
SOA protection circuitry decreases the maximum available
output current as the input−output differential voltage
increases.
The CS5204−x has a composite PNP−NPN output
transistor and requires an output capacitor for stability. A
detailed procedure for selecting this capacitor is included in
the Stability Considerations section.
V
IN
V
OUT
V
OUT
V
IN
CS5204−1
C
1
V
REF
Adj
R
R
1
2
C
2
I
Adj
C
Adj
Adjustable Operation
Figure 10. Resistor Divider Scheme for the
Adjustable Version
The adjustable regulator (CS5204−1) has an output
voltage range of 1.25 V to 13 V. An external resistor divider
sets the output voltage as shown in Figure 10. The regulator
maintains a fixed 1.25 V (typical) reference between the
output pin and the adjust pin.
A resistor divider network R1 and R2 causes a fixed
current to flow to ground. This current creates a voltage
across R2 that adds to the 1.25 V across R1 and sets the
overall output voltage. The adjust pin current (typically
50 mA) also flows through R2 and adds a small error that
Stability Considerations
The output or compensation capacitor helps determine
three main characteristics of a linear regulator: start−up
delay, load transient response and loop stability.
The capacitor value and type is based on cost, availability,
size and temperature constraints. A tantalum or aluminum
electrolytic capacitor is best, since a film or ceramic
capacitor with almost zero ESR, can cause instability. The
aluminum electrolytic capacitor is the least expensive
solution. However, when the circuit operates at low
temperatures, both the value and ESR of the capacitor will
vary considerably. The capacitor manufacturers data sheet
provides this information.
should be taken into account if precise adjustment of V
is necessary.
The output voltage is set according to the formula:
OUT
R1 ) R2
ǒ
Ǔ) I
V
+ V
R2
OUT
REF
Adj
R1
The term I × R2 represents the error added by the adjust
pin current.
A 22 mF tantalum capacitor will work for most
applications, but with high current regulators such as the
CS5204−x the transient response and stability improve with
higher values of capacitor. The majority of applications for
this regulator involve large changes in load current so the
output capacitor must supply the instantaneous load current.
Adj
R1 is chosen so that the minimum load current is at least
10 mA. R1 and R2 should be the same type, e.g. metal film
for best tracking over temperature. The adjust pin is
bypassed to improve the transient response and ripple
rejection of the regulator.
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5
CS5204−1, CS5204−3, CS5204−5
Output Voltage Sensing
The ESR of the output capacitor causes an immediate drop
in output voltage given by:
Since the CS5204−x is a three terminal regulator, it is not
possible to provide true remote load sensing. Load
regulation is limited by the resistance of the conductors
connecting the regulator to the load. For best results the
fixed regulators should be connected as shown in Figure 13.
DV + DI ESR
For microprocessor applications it is customary to use an
output capacitor network consisting of several tantalum and
ceramic capacitors in parallel. This reduces the overall ESR
and reduces the instantaneous output voltage drop under
load transient conditions. The output capacitor network
should be as close as possible to the load for the best results.
Conductor Parasitic
Resistance
R
C
V
IN
V
IN
V
OUT
CS5204−x
R
LOAD
Protection Diodes
GND
When large external capacitors are used with a linear
regulator it is sometimes necessary to add protection diodes.
If the input voltage of the regulator gets shorted, the output
capacitor will discharge into the output of the regulator. The
discharge current depends on the value of the capacitor, the
output voltage and the rate at which V drops. In the
IN
Figure 13. Conductor Parasitic Resistance can be
Minimized with the Above Grounding Scheme for
Fixed Output Regulators
CS5204−x family of linear regulators, the discharge path is
through a large junction and protection diodes are not
usually needed. If the regulator is used with large values of
output capacitance and the input voltage is instantaneously
shorted to ground, damage can occur. In this case, a diode
connected as shown in Figures 11 and 12 is recommended.
For the adjustable regulator, the best load regulation
occurs when R1 is connected directly to the output pin of the
regulator as shown in Figure 14. If R1 is connected to the
load, R is multiplied by the divider ratio and the effective
C
resistance between the regulator and the load becomes
IN4002 (optional)
R1 ) R2
ǒ
Ǔ
R1
R
C
V
IN
V
IN
V
OUT
V
OUT
CS5204−1
C
1
where R = conductor parasitic resistance.
C
Adj
R
1
C
2
Conductor Parasitic
Resistance
R
C
V
IN
V
IN
V
OUT
C
R
Adj
2
CS5204−1
R
R
1
2
R
LOAD
Adj
Figure 11. Protection Diode Scheme for Adjustable
Output Regulator
IN4002 (optional)
V
OUT
V
OUT
V
IN
V
IN
CS5204−x
C
1
GND
Figure 14. Grounding Scheme for Adjustable Output
Regulator to Minimize Parasitics
C
2
Figure 12. Protection Diode Scheme for Fixed Output
Regulators
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6
CS5204−1, CS5204−3, CS5204−5
Calculating Power Dissipation and Heat Sink
Requirements
A heat sink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air.
Each material in the heat flow path between the IC and the
outside environment has a thermal resistance. Like series
electrical resistances, these resistances are summed to
The CS5204−x series of linear regulators includes thermal
shutdown and current limit circuitry to protect the device.
High power regulators such as these usually operate at high
junction temperatures so it is important to calculate the
power dissipation and junction temperatures accurately to
ensure that an adequate heat sink is used.
determine R , the total thermal resistance between the
qJA
junction and the surrounding air.
The case is connected to V
on the CS5204−x,
OUT
1. Thermal Resistance of the junction to case, R
qJC
electrical isolation may be required for some applications.
Thermal compound should always be used with high current
regulators such as these.
(°C/W)
2. Thermal Resistance of the case to Heat Sink, R
qCS
(°C/W)
The thermal characteristics of an IC depend on the
following four factors:
3. Thermal Resistance of the Heat Sink to the ambient
air, R (°C/W)
qSA
These are connected by the equation:
1. Maximum Ambient Temperature T (°C)
A
2. Power dissipation P (Watts)
D
3. Maximum junction temperature T (°C)
4. Thermal resistance junction to ambient R
J
R
+ R
) R
) R
QSA
(3)
QJA
QJC
QCS
(°C/W)
qJA
The value for R
is calculated using equation (3) and the
result can be substituted in equation (1).
The value for R is 3.5°C/W for a given package type
qJA
These four are related by the equation
qJC
based on an average die size. For a high current regulator
such as the CS5204−x the majority of the heat is generated
T + T ) P R
QJA
(1)
J
A
D
The maximum ambient temperature and the power
dissipation are determined by the design while the
maximum junction temperature and the thermal resistance
depend on the manufacturer and the package type.
in the power transistor section. The value for R
depends
qSA
on the heat sink type, while R
depends on factors such as
qCS
package type, heat sink interface (is an insulator and thermal
grease used?), and the contact area between the heat sink and
the package. Once these calculations are complete, the
The maximum power dissipation for a regulator is:
maximum permissible value of R
can be calculated and
qJA
{
}
I
P
+ V
* V
) V
I
D(max)
IN(max)
OUT(min) OUT(max)
IN(max) Q
the proper heat sink selected. For further discussion on heat
sink selection, see application note “Thermal
Management,” document number AND8036/D, available
through the Literature Distribution Center or via our website
at http://onsemi.com.
(2)
where:
V
V
is the maximum input voltage,
IN(max)
OUT(min)
OUT(max)
is the minimum output voltage,
is the maximum output current, for the
I
application
I is the maximum quiescent current at I
Q
.
OUT(max)
ORDERING INFORMATION
†
Orderable Part Number
CS5204−1GT3
Type
Package
Shipping
4.0 A, Adj. Output
4.0 A, Adj. Output
4.0 A, Adj. Output
4.0 A, 3.3 V Output
4.0 A, 3.3 V Output
4.0 A, 3.3 V Output
4.0 A, 5.0 V Output
TO−220−3, STRAIGHT
50 Units / Rail
50 Units / Rail
750 / Tape & Reel
50 Units / Rail
50 Units / Rail
750 / Tape & Reel
50 Units / Rail
2
CS5204−1GDP3
CS5204−1GDPR3
CS5204−3GT3
D PAK−3
2
D PAK−3
TO−220−3, STRAIGHT
2
CS5204−3GDP3
CS5204−3GDPR3
CS5204−5GT3
D PAK−3
2
D PAK−3
TO−220−3, STRAIGHT
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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7
CS5204−1, CS5204−3, CS5204−5
PACKAGE DIMENSIONS
TO−220−3
T SUFFIX
CASE 221A−08
ISSUE AA
NOTES:
SEATING
PLANE
−T−
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
F
−B−
C
T
INCHES
DIM MIN MAX
MILLIMETERS
S
MIN
14.23
9.66
3.56
0.64
3.53
MAX
15.87
10.66
4.82
A
B
C
D
F
0.560
0.380
0.140
0.025
0.139
0.625
0.420
0.190
0.035
0.155
4
Q
A
K
0.89
3.93
1
2
3
U
G
H
J
0.100 BSC
2.54 BSC
−−−
0.012
0.500
0.045
0.280
0.045
0.580
0.060
−−−
0.31
7.11
1.14
H
L
−Y−
K
L
12.70
1.15
14.73
1.52
N
Q
R
S
T
0.200 BSC
5.08 BSC
0.100
0.080
0.020
0.235
0.000
0.045
0.135
0.115
0.055
0.255
0.050
−−−
2.54
2.04
0.51
5.97
0.00
1.15
3.42
2.92
1.39
6.47
1.27
−−−
R
V
G
J
U
V
D 3 PL
M
M
0.25 (0.010)
B
Y
N
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CS5204−1, CS5204−3, CS5204−5
PACKAGE DIMENSIONS
D2PAK−3
DP SUFFIX
CASE 418AB−01
ISSUE O
For D2PAK Outline and
Dimensions − Contact Factory
PACKAGE THERMAL DATA
2
Parameter
TO−220−3
D PAK−3
Unit
°C/W
°C/W
R
R
Typical
Typical
1.6
50
1.6
q
q
JC
JA
10−50*
+ R
* Depending on thermal properties of substrate. R
= R
q
JC
q
q
CA
JA
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CS5204−1, CS5204−3, CS5204−5
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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