300mA低电源电流高PSRR低损耗线性稳压器工作电压2.50V到5.50V CXSD62438空载电流90μA关断模式电流小于1μA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP The CXSD62437 CXSD62438 is a low supply current, high PSRR, and low dropout linear regulator that comes in a space saving SOT-23-5 package. The supply current at no-load is 90μA. In the shutdown mode, the maximum supply current is less than 1μA. Operating voltage range of the CXSD62437 CXSD62438 is from 2.50V to 5.50V. The over-current protection limit is set at 550mA typical. An over- temperature protection circuit is built-in in the CXSD62437 CXSD62438 to prevent thermal overload. These power saving features make the CXSD62437 CXSD62438 ideal for use in the battery-powered applications such as notebook computers, cellular phones, and PDA’s. The CXSD62437 CXSD62438 has two modes of operation. When the SET pin is connected to ground, its output is a pre-set value: 1.50V~5.00V. There is no external component needed to decide the output voltage. When an output other than the preset value is needed, two external resistors should be used as a voltage divider. The output voltage is then decided by the resistor ratio. The CXSD62437 CXSD62438 comes in a space saving SOT-23-5 package.产品特点 返回TOP „ Low, 90μA No-Load Supply Current „ Guaranteed 300mA Output Current „ Dropout Voltage is 200mV @ 150mA Load „ PSRR=65dB @ 120Hz „ Over-Temperature Protection and Short-Circuit Protection „ Two Modes of Operation ---- Fixed Mode: 1.50V~5.00V Adjustable Mode: from 1.25V to 5.50V „ Max. Supply Current in Shutdown Mode < 1μA „ Low Output Noise at 238μVRMS „ Stable with low cost ceramic capacitors 应用范围 返回TOP „ Notebook Computers „ Cellular Phones „ PDAs „ Digital still Camera and Video Recorders „ Hand-Held Devices „ Audio Codec 技术规格书（产品PDF) 返回TOP 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 产品封装图 返回TOP
电路原理图 返回TOP
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Single Output |
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Part NO. |
Vin(V) min. |
Vin(V max. |
IOUT (A) |
VOUT (V) |
Dropout @IOUT(V) |
EN |
Disch arge |
IQ (μA) |
Note |
Package |
|
2.5 |
5.5 |
0.3 |
1.5/1.8/1.9/2.5/2.8 /3.0/3.1/3.3/4.2/5.0 |
0.35 |
H |
Y |
90 |
N/A |
SOT23-5/SOT233/ SOT89/SC70-5 |
|
|
2.2 |
7 |
1 |
1.8/2.5/3.3 |
0.27 |
N |
-- |
3000 |
MLCC |
SOT-89 |
|
|
2.2 |
7 |
1 |
2.5 |
0.4 |
N |
-- |
2000 |
MLCC |
TO-252 |
|
|
2.2 |
7 |
1.5 |
1.2/1.8/2.5/3.3 |
0.4 |
N |
-- |
3000 |
N/A |
TO252/SOT223 |
|
|
2.5 |
5.5 |
5 |
ADJ(1.25) |
1.3 |
N |
-- |
80 |
N/A |
TO220/TO-252 |
|
|
2.2 |
7 |
5 |
1.5/1.8/2.5/3.3 |
1.3 |
N |
-- |
2100 |
N/A |
TO-252 |
|
|
2.5 |
7 |
0.5 |
1.2/1.8/2.5/2.6 /2.8/3.0/3.3/5.0 |
0.3 |
H |
Y |
80 |
MLCC |
TSOT23-5/SOT23-5/SOT89/SOT23 |
|
|
2.5 |
6 |
0.3 |
1.2/1.5/1.8/2.5 /2.8/2.85/3/5 |
0.21 |
H |
Y |
80 |
MLCC |
SOT-23-5 |
|
|
4 |
6.5 |
0.6 |
3.3 |
0.65 |
N |
-- |
300 |
N/A |
SOT-223 |
|
|
3.3 |
6 |
0.6 |
2.5 |
0.8 |
N |
-- |
300 |
N/A |
SOT-89 |
|
|
2.2 |
12 |
5 |
1.5/1.8/2.5/3.3 /5.0ADJ(1.25) |
1.5 |
N |
-- |
5500 |
N/A |
TO-252 |
|
|
2.2 |
12 |
1.5 |
1.5/1.8/2.5 /3.0/5.0ADJ(1.25) |
1.4 |
N |
-- |
7000 |
Dual mode |
TO-252 |
|
|
2.5 |
6 |
0.3 |
1.2~5 |
0.21 |
H |
Y |
80 |
MLCC |
SC70-4/SC-70-5/TSOT23-/SOT23 -5/TDFN2X2-6/TDFN2X2-8 |
|
|
2.5 |
6 |
0.3 |
1.2/1.5/1.8/2.5/2.8 /2.85/3/3.3/4.75/5 |
0.21 |
H |
Y |
80 |
MLCC |
TSOT23-5/SOT23-5/TDFN2X2-6/ SC70-4/TDFN2X2-8/SC70-5/ TDFN1.6X1.6-6 |
|
|
2.2 |
6 |
0.15 |
1.2/1.8/2.5/ 2.8/3.0/3.3/3.5 |
0.22 |
H |
Y |
100 |
MLCC |
TSOT-23-5/SOT-23-5/SC-70 -4/SC-70-5/TDFN2X2-8 |
|
|
4 |
6.5 |
0.6 |
3.3 |
0.65 |
N |
-- |
300 |
N/A |
SOT89/SOT223/TO92/μTO92 |
|
|
4 |
6.5 |
0.25 |
3.3 |
0.25 |
N |
-- |
300 |
N/A |
SOT89/SOT223/TO92/μTO92 |
|
|
2.5 |
12 |
1 |
ADJ(1.25) |
1.3 |
N |
-- |
-- |
N/A |
SOT89/TO220/TO252/SOT223 |
|
|
3.3 |
12 |
1 |
1.8/2.5/3.3/5.0 |
1.3 |
N |
-- |
-- |
N/A |
SOT89/TO220/TO252/SOT223 |
|
|
2.7 |
6.5 |
1 |
1.2 |
1.55 |
N |
-- |
480 |
N/A |
SOP8(FD)/TO252/SOT223 |
|
|
3.6 |
7 |
1 |
2.5 |
0.4 |
H |
-- |
5000 |
N/A |
TO220F-4/TO252-5 |
|
|
3 |
6 |
0.3 |
1.2/1.5/1.8/ 2.5/3.0/3.3/3.9 |
0.4 |
N |
-- |
90 |
MLCC |
SOT89/SOT-23 |
|
|
2.5 |
5.5 |
0.3 |
3.3 |
0.4 |
H |
Y |
90 |
Dual mode MLCC |
SOT-23-5 |
|
|
1 |
5.5 |
0.6 |
1.0~5.5 ADJ(1.0) |
0.8 |
H |
Y |
90 |
MLCC |
SOT-23-5/SOP-8 |
|
|
-- |
5.5 |
0.3 |
1.5/1.8/2.5/2.7/2.8/ 2.85/3.0/3.3ADJ(1.25) |
0.45 |
H |
Y |
265 |
MLCC |
SOT-23-5 |
|
|
2.9 |
6 |
0.6 |
1.5 |
1.3 |
N |
-- |
300 |
N/A |
SOT89/SOT-223 |
|
|
2.5 |
6 |
0.3 |
1.2/1.8/2.5/2.7/ 3.0/3.3 ADJ(1.25) |
0.24 |
H |
Y |
90 |
Dual mode MLCC |
TSOT23-5/SOT23-5/SC70-5 |
|
|
2.5 |
5.5 |
0.4 |
1.2/2.6 |
0.48 |
N |
-- |
90 |
MLCC |
SOT89/TO252/SOT223/SOP8(FD |
|
|
5 |
7 |
0.5 |
5 |
0.4 |
H |
Y |
90 |
MLCC |
SOT-23-5 |
|
|
2.5 |
6 |
0.3 |
ADJ(1.2) |
0.24 |
H |
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