300mA的输出电流50uA的低静态电流双路工作CXLD64246瞬态响应特性高的电源抑制比特性稳压器单独的关断降低了功率的消耗

CXLD64246是一款双路、低噪声、低漏失、高PSRR、高精度的CMOS线性稳压器。其特性包括低输出噪声，高电源抑制比，低漏失电压及快速启动。CXLD64246还和低ESR的陶瓷电容完全兼容，降低了成本并增强了输出稳定性。这种高的输出稳定性即使在频繁的负载波动时仍然能够保持，这得益于芯片在很宽的频率范围内具有良好的瞬态响应特性和高的电源抑制比特性。EN功能允许每一路稳压器单独的关断，极大的降低了功率的消耗。

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

CXLD64246是一款双路、低噪声、低漏失、高PSRR、高精度的CMOS线性稳压器。其特性包括低输出噪声，高电源抑制比，低漏失电压及快速启动。CXLD64246还和低ESR的陶瓷电容完全兼容，降低了成本并增强了输出稳定性。这种高的输出稳定性即使在频繁的负载波动时仍然能够保持，这得益于芯片在很宽的频率范围内具有良好的瞬态响应特性和高的电源抑制比特性。EN功能允许每一路稳压器单独的关断，极大的降低了功率的消耗。CXLD64246有1.6mm×1.6mm TDFN-6 、TSOT23-6和SOP-8(EP)封装。The CXLD64246 is a dual-channel low noise, low dropout. High PSRR, high accuracy CMOS voltage regulator. Performance features include low output noise, high ripple rejection ratio, low dropout and very fast turn-on times. The CXLD64246 is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The EN function allows the output of each regulator to be turned off independently, resulting in greatly reduced power consumption. The CXLD64246 is available in small 1.6mm×1.6mm TDFN-6 and TSOT23-6 packages.

   产品特点 返回TOP

• 300mA的输出电流（每通道）

• 30μV低输出噪声

• 70dB PSRR@1KHZ

• 50uA的低静态电流（双路工作）

• 2.5V 到 5.5V的输入电压范围

• Vdrop 380mV@300mA

• 两路使能单独控制两路输出

• 具有过流和过温保护

• 短路保护

• TDFN-6 1.6mm×1.6mm TDFN-6 、TSOT23-6和SOP-8(EP)封装

• 符合RoHS标准，100%无铅和无卤素

300mA Output Current (Per LDO)

 
30μVRMS Low Noise Output

 
70dB PSRR at 1KHz

 
Low 50uA Quiescent Current (Both LDOs active)

 
2.5V to 5.5V Input Voltage Range
380mV Dropout at 300mA Load

 
Dual Shutdown pins Control Each Output

 
Current Limiting and Thermal Protection

 
Short Circuit Protection

 
Available in TDFN-6 1.6mm×1.6mm and TSOT23-6 Packages

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

   应用范围 返回TOP

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• 手机

• 照相机，录像机

• PDA

• 掌上设备

Cellular Phones

Camera, Video Recordes

PDAs
Hand-held Equipment

   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