CX1085-2.5 [ETC]
3A Low dropout voltage regulator; 3A低压差稳压器
| 型号： | CX1085-2.5 |
| 厂家： | 
ETC |
| 描述： | 3A Low dropout voltage regulator |
| 文件： | 总2页 (文件大小：109K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CX1085
S IC O R E
3A Low dropout voltage regulator
FEATURES
Three Terminal Adjustable or Fixed Voltages 1.5V,
1.8V, 2.5V, 2.85V, 3.3V and 5.0V
Output Current of 3A
TO-263-2
Operates Down to 1V Dropout
Line Regulation: 0.2% Max.
Load Regulation: 0.4% Max.
TO-263-2,TO-263-3,TO252-2 and TO-220 package
available
TO-263-3
TO-252-2
APPLICATIONS
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Microprocessor Supply
Constant Current Regulators
Power Management for Notebook
Battery Chargers
Notebook/Personal Computer Supplies
Portable Instrumentation
TO-220
ORDERING INFORMATION
PACKAGE TYPE
OPERATING JUNCTION
TEMPERATURE RANGE
TO-263-2&3
CX1085-ADJ
CX1085-1.5
CX1085-1.8
CX1085-2.5
CX1085-2.85
CX1085-3.3
CX1085--5.0
TO-252-2
CX1085-ADJ
CX1085-1.5
CX1085-1.8
CX1085-2.5
CX1085-2.85
CX1085-3.3
CX1085-5.0
TO-220
CX1085-ADJ
CX1085-1.5
CX1085-1.8
CX1085-2.5
CX1085-2.85
CX1085-3.3
CX1085-5.0
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
0 to 125° C
CX1085
S IC O R E
3A Low dropout voltage regulator
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IOUT = 0 mA, and TJ = +25°C unless otherwise specified.
Parameter
Output Voltage
Line Regulation
Device
Conditions
Min Typ
Max Units
I
OUT = 10 mA
CX1085 10mA ≤IOUT ≤3A,
1.5V≤ (VIN - VOUT) ≤12V
1.0
2.0
%
%
IOUT = 10 mA ,
0.3
0.6
0.1
0.2
6.0
10.0
0.3
mV
mV
CX1085
CX1085
CX1085
1.5V≤ (VIN - VOUT) ≤12V
(VIN - VOUT) =3V,
Load Regulation
(Notes 2, 3)
%
0.4
10mA≤IOUT ≤5A
Dropout
∆VOUT , ∆VREF = 1%,
1.3
1.5
V
A
Voltage(VIN - VOUT
)
IOUT = 3A
Current Limit
CX1085 (VIN - VOUT) = 5V
5.0 6.0
7.0
Minimum Load
(VIN - VOUT) = 12V
CX1085
5
5
10
10
mA
mA
dB
Current
Quiescent Current CX1085
VIN ≤12V
f =120Hz , COUT = 22µF Tantalum, IOUT = 3A,
(VIN-VOUT ) = 3V, CADJ =10µF
TA = 25°C, 30ms pulse
Ripple Rejection
CX1085
60
75
Thermal
CX1085
0.008 0.04
%W
Regulation
10mA ≤IOUT ≤3A,
55
µA
µA
Adjust Pin Current CX1085
120
1.5V≤ (VIN - VOUT) ≤12V
10mA ≤IOUT ≤3A,
Adjust Pin Current
CX1085
0.2
5.0
µA
Change
1.5V≤ (VIN- VOUT) ≤12V
Thermal
TO-220:Control Circuitry/Power Transistor
TO-263:Control Circuitry/Power Transistor
1.5/4.0
1.5/4.0
Resistance
CX1085
°C/W
Junction-to-Case
APPLICATION CIRCUITS
CX1085
VIN
CX1085
OUT
VOUT=7.5V
VOUT
VIN > 9.0V
IN
OUT
IN
R1
ADJ
5.0
Cin
Cin
120
VREF
Cout
10uF
10uF
Cout
2.5V
100uF
100uF
R2
1k
Vout =7.5V
Application2: Regulator with
reference
VOUT = VRE F (1+ R2/R1)+IADJR2
Application 1:1.25V to 10V Adjustable Regulator
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