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參數(shù)資料
| 型號： | RT9183L-33GG |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | Ultra Low Dropout 1.5A Linear Regulator |
| 中文描述： | 1.5A的超低壓差線性穩(wěn)壓器 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大小： | 225K |
| 代理商： | RT9183L-33GG |
RT9183
5
DS9183-12 March 2007
www.richtek.com
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Load Regulation (Note 5)
(Fixed Output Voltage)
Δ
V
LOAD
1mA < I
OUT
< 1.5A
--
22
45
mV
Thermal Shutdown Temperature
T
SD
--
170
--
°
C
Thermal Shutdown Hysteresis
Δ
T
SD
--
30
--
°
C
Logic-Low Voltage
V
IL
V
IN
= 5.5V
--
--
0.6
EN Threshold
Logic-High Voltage
V
IH
V
IN
= 5.5V
1.8
--
--
V
Enable Pin Current
I
EN
V
IN
= 5.5V, Enable
--
0.1
1
μ
A
ADJ
Reference Voltage Tolerance
V
REF
I
ADJ
V
TH(ADJ)
V
ADJ
=
V
REF
0.784
0.8
0.816
V
Adjust Pin Current
--
10
100
nA
Adjust Pin Threshold
0.05
0.1
0.2
V
Note 1.
Stresses listed as the above
"Absolute Maximum Ratings"
may cause permanent damage to the device. These
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.
Note 2.
Devices are ESD sensitive. Handling precaution recommended.
Note 3.
The device is not guaranteed to function outside its operating conditions.
Note 4.
The dropout voltage is defined as V
IN
-V
OUT
, which is measured when V
OUT
is V
OUT(NORMAL)
100mV.
Note 5.
Regulation is measured at constant junction temperature by using a 20ms current pulse. Devices are tested for
load regulation in the load range from 10mA to 1.5A.
Note 6.
Quiescent, or ground current, is the difference between input and output currents. It is defined by I
Q
= I
IN
- I
OUT
under no load condition (I
OUT
= 0mA). The total current drawn from the supply is the sum of the load current plus
the ground pin current.
Note 7.
Standby current is the input current drawn by a regulator when the output voltage is disabled by a shutdown
signal (V
EN
>1.8V ). It is measured with V
IN
= 5.5V.
Note 8.
θ
JA
is measured in natural convection (still air) at T
A
= 25
°
C with the component mounted on a low effective
thermal conductivity test board of JEDEC 51-3 thermal measurement standard. And the cooper area of PCB
layout is 4mm x 2.5mm on SOT-223, 14mm x 14mm on TO-263 for thermal measurement.
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