參數(shù)資料
型號: RT9172S-33PM5
廠商: Richtek Technology Corporation
元件分類: 基準電壓源/電流源
英文描述: 3A Fixed Output Voltage LDO Regulator
中文描述: 3A固定輸出電壓LDO穩(wěn)壓器
文件頁數(shù): 5/15頁
文件大?。?/td> 236K
代理商: RT9172S-33PM5
RT9172
5
DS9172-14 March 2007
www.richtek.com
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
= 10
μ
F(Electrolytic), V
EN
= V
IN
)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Output Voltage Tolerance
-1.5
0
+1.5
%
Input Voltage Range
V
IN
Δ
V
LINE
2.25
--
5.5
V
Line Regulation
V
OUT
+ 0.4V
<
V
IN
<
5.5V
Note 1
--
0.35
1
%
--
0.4
1
Note 2
--
0.1
0.4
Load Regulation
Δ
V
LOAD
Note 3
--
0.1
0.4
%
Dropout Voltage
V
DROP
I
Q
I
GSD
I
O(PEAK)
I
L
= 3A
--
400
700
mV
Quiescent Current
--
1.2
3
mA
Shutdown Supply Current
V
EN
= 0V
--
0.5
5
μ
A
Peak Output Current
3.5
5
--
A
Short Circuit Protection
Current Limit
I
LIMIT
3.5
5
--
A
Over Temperature Protection
Shutdown Threshold
T
SD
Guaranteed by design
--
170
--
°
C
°
C
Thermal Shutdown Hysteresis
Guaranteed by design
--
10
--
Shutdown Function
Output = High
1.2
V
IN
0
--
EN Pin Shutdown Threshold
V
EN
Output = Low
--
0.4
V
EN Input Current
V
EN
= V
IN
--
0.1
--
nA
FLG Pin Leakage Current
I
LEAKAGE
--
1
--
nA
FLG Pin Sink Current
V
FLG
= 0.5V
2
--
--
mA
Note 1.
RT9172-CX, RT9172F-XXCX5, 10mA < I
L
< 3A
Note 2.
RT9172S-XXCX5, RT9172N-XXCX5, 10mA < I
L
< 3A
Note 3.
RT9172CS, 10mA < I
L
< 1.5A
Note 4.
θ
JA
is measured in the natural convection at T
A
= 25
°
C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard. The case point of
θ
JC
is on the center of the exposed pad. The pad size
is 125mm
2
on TO-263 packages.
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