CS5205A-1GT3

© Semiconductor Components Industries, LLC, 2006
September, 2006 Rev. 7
1 Publication Order Number:
CS5205A1/D
CS5205A−1
5.0 A Adjustable Linear
Regulator
The CS5205A1 linear regulator provides 5.0 A at an adjustable
voltage with an accuracy of ±1%. Two external resistors are used to set
the output voltage within a 1.25 V to 13 V range.
The regulator is intended for use as a post regulator and
microprocessor supply. The fast loop response and low dropout
voltage make this regulator ideal for applications where low voltage
operation and good transient response are important.
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 regulator is fully protected against overload conditions with
protection circuitry for Safe Operating Area (SOA), overcurrent and
thermal shutdown.
The CS5205A1 is pin compatible with the LT1084 family of linear
regulators but has lower dropout voltage.
The regulator is available in TO2203 and surface mount
D
2
PAK3 packages.
Features
Output Current to 5.0 A
Output Trimmed to ±1%
Dropout Voltage 1.15 V @ 5.0 A
Fast Transient Response
Fault Protection Circuitry
Thermal Shutdown
Overcurrent Protection
Safe Area Protection
+
Thermal
Shutdown
Bandgap
Output
Current
Limit
Error
Amplifier
V
OUT
Adj
V
IN
Figure 1. Block Diagram
MARKING DIAGRAMS
CS5205A1
AWLYWW
1
CS5205A1
AWLYWW
1
D
2
PAK3TO2203
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
Tab = V
OUT
Pin 1. Adj
2. V
OUT
3. V
IN
1
2
3
http://onsemi.com
D
2
PAK3
DP SUFFIX
CASE 418AB
TO2203
T SUFFIX
CASE 221A
1
2
3
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
CS5205A1
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2
MAXIMUM RATINGS*
Parameter Value Unit
Supply Voltage, V
CC
17 V
Operating Temperature Range 40 to +70 °C
Junction Temperature 150 °C
Storage Temperature Range 60 to +150 °C
Lead Temperature Soldering: 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
IN
= 10 μF, C
OUT
= 22 μF Tantalum, V
IN
V
OUT
= 3.0 V, V
IN
15 V, 0°C T
A
70°C,
T
J
+150°C, unless otherwise specified, I
full
load
= 5.0 A.)
Characteristic
Test Conditions Min Typ Max Unit
Adjustable Output Voltage
Reference Voltage (Notes 3 and 4)
V
IN
V
OUT
= 1.5 V; V
Adj
= 0 V,
10 mA I
OUT
5.0 A
1.241
(1%)
1.254 1.266
(+1%)
V
Line Regulation 1.5 V V
IN
V
OUT
6.0 V; I
OUT
= 10 mA 0.04 0.20 %
Load Regulation (Notes 3 and 4) V
IN
V
OUT
= 1.5 V; 10 mA I
OUT
5.0 A 0.08 0.4 %
Dropout Voltage (Note 5) I
OUT
= 5.0 A; T
J
25°C 1.15 1.25 V
Current Limit V
IN
V
OUT
= 3.0 V; T
J
25°C
V
IN
V
OUT
= 9.0 V
5.5
8.5
1.0
A
A
Minimum Load Current V
IN
V
OUT
= 7.0 V 1.2 6.0 mA
Adjust Pin Current 50 100 μA
Adjust Pin Current Change 1.5 V V
IN
V
OUT
4.0 V;
10 mA I
OUT
5.0 A
0.2 5.0 μA
Thermal Regulation 30 ms pulse; T
A
= 25°C 0.003 %W
Ripple Rejection f = 120 Hz; C
Adj
= 25 μF; I
OUT
= 5.0 A 82 dB
Temperature Stability 0.5 %
RMS Output Noise 10 Hz f 10 kHz; T
A
= 25°C 0.003 %V
OUT
Thermal Shutdown 150 180 °C
Thermal Shutdown Hysteresis 25 °C
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. Specifictions 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 differentail at full load.
PACKAGE PIN DESCRIPTION
Package Pin Number
Pin Symbol Function
TO2203 D
2
PAK3
1 1 Adj Adjust pin (low side of the internal reference).
2 2 V
OUT
Regulated output voltage (case).
3 3 V
IN
Input voltage.
CS5205A1
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3
TYPICAL PERFORMANCE CHARACTERISTICS
1
Output Current (A) T
J
(°C)
Figure 2. Dropout Voltage vs. Output
Current
Figure 3. Reference Voltage vs.
Temperature
Output Current (A) V
IN
V
OUT
(V)
Figure 4. Load Regulation vs. Output
Current
Figure 5. Minimum Load Current
0.10
10
Dropout Voltage (V)
Output Voltage Deviation (%)
2.500
Output Voltage Deviation (%)
Minimum Load Current (mA)
0.200
1
Frequency (Hz)
Figure 6. Ripple Rejection vs. Frequency
Ripple Rejection (dB)
10
2
100
1
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
20 345
0.08
0.06
0.04
0.02
0.00
0.02
0.04
0.06
0.08
0.10
0.12
200 13030 40 50 60 70 80 90 100 110 120
0.175
0.150
0.125
0.100
0.075
0.050
0.025
0.000
02345 23456789
2.175
1.850
1.525
1.200
0.875
0.550
90
80
70
60
50
40
30
20
10
0
10
3
10
4
10
1
10
5
T
CASE
= 0°C
T
CASE
= 125°C
T
CASE
= 25°C
T
CASE
= 125°C
T
CASE
= 0°C
T
CASE
= 25°C
T
CASE
= 125°C
T
CASE
= 0°C
T
CASE
= 25°C
T
CASE
= 25°C
I
OUT
= 5.0 A
(V
IN
V
OUT
) = 3.0 V
V
RIPPLE
= 1.6 V
PP
C
Adj
= 25 μF

CS5205A-1GT3

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
IC REG LINEAR POS ADJ 5A TO220AB
Lifecycle:
New from this manufacturer.
Delivery:
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