RT9172
Absolute Maximum Ratings
Input Voltage
Power Dissipation
ESD Rating
Storage Temperature Range
Lead Temperature (Soldering, 5 sec.)
Package Thermal Resistance
TO-263,
θ
JC
TO-263,
θ
JA
TO-220,
θ
JC
TO-220,
θ
JA
SOT-223,
θ
JC
SOT-223,
θ
JA
Junction Temperature Range
Preliminary
6V
Internally Limited
3 kV
−65°C
to 150°C
260°C
8°C/W
19.4°C/W
8°C/W
62°C/W
15°C/W
60°C/W
-40°C to +125°C
Electrical Characteristics
(Limits in standard typeface are for T
A
= 25°C, unless otherwise specified: V
IN
= V
O(NOM)
+ 1.0V, I
L
= 10mA, C
OUT
=
10µF (Ceramic), V
EN
= V
IN
)
Parameter
Output Voltage Tolerance
Input Voltage Range
Line Regulation
Load Regulation
Dropout Voltage
Quiescent Current
Shutdown Supply Current
Peak Output Current
Short Circuit Protection
Current Limit
Over Temperature Protection
Shutdown Threshold
Thermal Shutdown Hysteresis
Shutdown Function
EN Pin Shutdown Threshold
EN Input Current
FLG Pin Leakage Current
FLG Pin Sink Current
I
LEAKAGE
V
FLG
= 0.5V
V
EN
Output = High
Output = Low
V
EN
= V
IN
1.2
--
--
--
2
V
IN
0
0.1
1
--
--
0.4
--
--
--
V
nA
nA
mA
T
SD
Guaranteed by design
Guaranteed by design
--
--
170
10
--
--
°C
°C
I
LIMIT
3.5
5
--
A
V
IN
∆V
LINE
∆V
LOAD
V
DROP
I
Q
I
GSD
I
O(PEAK)
V
EN
= 0V
V
OUT
+ 0.4V
<
V
IN
<
6.0V
Note 1
Note 2
I
L
= 300mA
I
L
= 3A
Symbol
Test Conditions
Min
-1.5
2.25
--
--
--
--
--
--
--
3.5
Typ
0
--
0.35
0.4
0.1
50
400
1.2
0.5
5
Max
+1.5
6
0.8
1
0.3
70
700
3
5
--
Units
%
V
%
%
mV
mA
µA
A
Note 1: RT9172-CX, RT9172F-XXCX5, 10mA < I
L
< 3A
Note 2: RT9172S-XXCX5, RT9172N-XXCX5, 10mA < I
L
< 3A
www.richtek-ic.com.tw
DS9172-03 April 2002
4
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
