2.5V到5.5V的输入电压600mA瞬态回应快高PSRR大负载电流的低漏失线性调整器CXLD64252低静态电流和快速启动

CXLD64252是一款瞬态回应快、高PSRR、大负载电流的低漏失线性调整器。它具有输出精度高，漏失电压很小，低静态电流和快速启动的特点。CXLD64252可以在低ESR的陶瓷电容下工作，从而节约了实际应用中PCB板的面积。CXLD64252在全负载工作下仅需要2.2uF的陶瓷电容就可以保证稳定性。当CXLD64252检测到故障信号，例如过温关断信号时，芯片会关断功率管并将VOUT通过内部电阻放电止地。CXLD64252为内部固定输出电压，内部输出电压的范围从0.8V到3.6V。其它的关键特性还包括过流保护，过温关断。CXLD64252可应用于SOT23-5的封装。

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

CXLD64252是一款瞬态回应快、高PSRR、大负载电流的低漏失线性调整器。它具有输出精度高，漏失电压很小，低静态电流和快速启动的特点。CXLD64252可以在低ESR的陶瓷电容下工作，从而节约了实际应用中PCB板的面积。CXLD64252在全负载工作下仅需要2.2uF的陶瓷电容就可以保证稳定性。当CXLD64252检测到故障信号，例如过温关断信号时，芯片会关断功率管并将VOUT通过内部电阻放电止地。CXLD64252为内部固定输出电压，内部输出电压的范围从0.8V到3.6V。其它的关键特性还包括过流保护，过温关断。CXLD64252可应用于SOT23-5的封装。The CXLD64252 is a high current, low dropout linear regulator with fast transient response and high PSRR. It offers high output accuracy, extremely low dropout voltage, low quiescent current and fast start-up time. The CXLD64252 is designed to work with low-ESR ceramic capacitor, reducing the amount of the PCB area necessary for power applications. Only a 2.2μF ceramic capacitor can make the device stable over the whole load range. When CXLD64252 detects fault signal, such as over-temperature, it will turn off the pass transistor and discharge VOUT to GND from the internal resistor. CXLD64252 only can be operated in fixed mode, the pre-set valve is from 0.8V~3.6V. Other key features include over-current protection, thermal shutdown. The device can be available in the SOT23-5 package.

   产品特点 返回TOP

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•2.5V到5.5V的输入电压范围

•300mV@600mA的漏失电压

•超快速的瞬态响应

•2.2μF的陶瓷输出电容

•PSRR在1kHz时为70dB

•120μA的静态电流

•关断电流小于1μA

•输出电流限制

高精度的输出电压：2%的内部精度

固定输出电压的范围：0.8V~3.6V

•热关断

•关断时可对输出电容自动放电

•符合RoHS标准，并且100%无铅和无卤素

2.5V to 5.5V Input Voltage Range

 
300mV@600mA Dropout Voltage

 
Ultra Fast Transient Response

 
Stable with 2.2μF Ceramic Output Capacitor

 
70dB PSRR at 1kHz

 
Low 120μA Quiescent Current

 
Low Shutdown Current:<1μA
Output Current Limit

 
Output Voltage With High Accuracy: 2%

 Initial Accuracy Fixed Output Voltage: 0.8V ~ 3.6V
Thermal Shutdown

 
COUT Auto-Discharge when Shutdown

 
RoHS Compliant and 100% Lead (Fb)-Free Halogen-Free

   应用范围 返回TOP

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•无线网络模块

•电池供电装置

•笔记本计算机

WiFi Modules

Battery-Powered Equipment

Notebook Computers

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

 

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低漏失线性稳压器
Part   Number	remark	Iout (mA)	Vin (V)	Vout (V)	Dropout (mV)	IQ (A)	PSRR (dB)	POR / Fault / Error	Package
CXLD64239B	150mA  Low-Noise LDO in SOT23-5	150	2.5 ~ 5.5	1.2~4.8	140	70μA	75	No	SOT23-5
CXLD64240	150mA  Low-Noise LDO in SC-82   Without A Bypass Capacitor	150	2.5~5.5	1.2~3.6	90	30uA	70	NO	SC-82
CXLD64241	Dual,Low-Noise, High-PSRR, 150mA LDO without Bypass Capacitor	150/150	2.5~5.5	1.2~3.6	190	50μA	70	No	TDFN-6,TSOT23-6
CXLD64242	300mA High PSRR Low-Noise LDO	300	2.5~5.5	1.2~4.8	250	70μA	75	No	SC-70,SOT23-5
CXLD64243	300mA Low-Noise Low-Dropout Linear Regulator	300	2.5~5.5	1.2~3.3	150	84μA	65	No	SOT23-5
CXLD64244	300mA Low Dropout Linear Regulator	300	2.5~5.5	1.2~3.5	170	90μA	-	No	SOT23-3 SOT-89
CXLD64245	A300mA Low-Noise LDO Without Bypass Capacitor	300	2.5~5.5	1.2~3.6	200	30μA	70	No	SOT23-5
CXLD64246	Dual, Low-Noise, High-PSRR, 300mA LDO without Bypass Capacitor	300/300	2.5~5.5	1.2~3.6	380	50μA	70	No	TDFN-6,TSOT23-6,SOP-8(EP)
CXLD64247	Low-Noise, High-PSRR, 600mA LDO with PGOOD Indication	600	2.5~5.5	0.8~5	360	80μA	68	Yes	TDFN-6
CXLD64248	600mA High PSRR Low Dropout Linear Regulator	600	2.5~5.5	0.8~5	300	120μA	70	No	SOT23-5
CXLD64249	1A Ultra Low-Dropout Linear Regulator	1000	2.5~5.5	1.5~3.3	300	300μA	60	Yes	SOT-223,SOP-8,SOT-89
CXLD64250	2A Ultra Low-Dropout Linear Regulator	2000	2.5~6	1.5~3.3	600	1mA	56	Yes	TO220,TO263,SOP-8 (EP)
CXLD64251	2A Low Dropout Linear Regulator with Programmable Soft-Start	2000	2.7~5.5	0.8~3.3	165	0.8mA	60	Yes	SOP-8
CXLD64252	600mA High PSRR Low Dropout Linear Regulator	600	2.5~5.5	0.8~3.6	300	120μA	70	No	SOT23-5