
CS5203A–1, CS5203A–2, CS5203A–3, CS5203A–5
http://onsemi.com
2
+
–
Thermal
Shutdown
Bandgap
Output
Current
Limit
Error
Amplifier
V
OUT
GND
V
IN
Figure 2. Block Diagram – CS5203A–2, –3, –5
ABSOLUTE 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
μ
F, C
OUT
= 22
μ
F 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
= 3.0 A.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
Adjustable Output Voltage (CS5203A–1)
Reference Voltage (Notes 3 and 4)
V
IN
– V
OUT
= 1.5 V; V
Adj
= 0 V,
10 mA
≤
I
OUT
≤
3.0 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
≤
3.0 A
–
0.03
0.4
%
Dropout Voltage (Note 5)
I
OUT
= 3.0 A
–
1.05
1.15
V
Current Limit
V
IN
– V
OUT
= 3.0 V; T
J
≥
25
°
C
V
IN
– V
OUT
= 15 V
3.2
–
5.5
2.5
–
–
A
A
Minimum Load Current
V
IN
– V
OUT
= 7.0 V
–
1.2
6.0
mA
Adjust Pin Current
–
–
50
100
μ
A
Adjust Pin Current Change
1.5 V
≤
V
IN
– V
OUT
≤
4.0 V;
10 mA
≤
I
OUT
≤
3.0 A
–
0.2
5.0
μ
A
Thermal Regulation
30 ms pulse; T
A
= 25
°
C
–
0.003
–
%/W
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.