RT9183 RICHTEK [Richtek Technology Corporation], RT9183 Datasheet - Page 5

• Manufacturer Part Number: RT9183
• Description: Ultra Low Dropout 1.5A Linear Regulator
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These
Note 2. Devices are ESD sensitive. Handling precaution is recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. The dropout voltage is defined as V
Note 5. Regulation is measured at constant junction temperature by using a 20ms current pulse. Devices are tested for
Note 6. Quiescent, or ground current, is the difference between input and output currents. It is defined by I
Note 7. Standby current is the input current drawn by a regulator when the output voltage is disabled by a shutdown
Note 8. θ
DS9183-14 April 2008
Current Limit
Dropout Voltage
Line Regulation
Load Regulation
(Fixed Output Voltage)
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
EN Threshold
Enable Pin Current
ADJ
Reference Voltage Tolerance
Adjust Pin Current
Adjust Pin Threshold
are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated
in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions
for extended periods may remain possibility to affect device reliability.
load regulation in the load range from 10mA to 1.5A.
under no load condition (I
the ground pin current.
signal (V
thermal conductivity test board of JEDEC 51-3 thermal measurement standard. And the copper area of PCB
layout is 4mm x 2.5mm on SOT-223, 10mm x 10mm on TO-252, 14mm x 14mm on TO-263 for thermal
measurement.
JA
is measured in natural convection (still air) at T
Parameter
EN
Logic-High Voltage
Logic-Low Voltage
>1.8V ). It is measured with V
(Note 4)
(Note 5)
OUT
= 0mA). The total current drawn from the supply is the sum of the load current plus
I
V
ΔV
ΔV
T
ΔT
V
V
I
V
I
V
LIM
EN
ADJ
Symbol
SD
DROP
IL
IH
REF
TH(ADJ)
IN
SD
LINE
LOAD
-V
OUT
IN
, which is measured when V
= 5.5V.
I
I
I
V
I
1mA < I
V
V
V
V
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
ADJ
= 5.5V
= 5.5V
= 5.5V, Enable
= 0.5A
= 1.0A
= 1.5A
= 10mA
=
Test Conditions
+ 0.7V < V
A
V
OUT
= 25°C with the component mounted on a low effective
REF
< 1.5A
IN
< 5.5V
OUT
is V
0.784
Min
0.05
1.8
--
--
--
--
--
--
--
--
--
--
2
OUT(NORMAL)
0.035
Typ
110
220
330
170
3.2
0.1
0.8
0.1
22
30
10
--
--
− 100mV.
RT9183
www.richtek.com
0.816
Max
0.18
300
400
500
100
4.2
0.6
0.2
45
--
--
--
1
Q
= I
IN
Units
%/V
mV
mV
uA
nA
°C
°C
- I
A
V
V
V
OUT
5