CXLD64250输出电流2A超低压差线性稳压器稳定地输出低电压和大电流输入电压2.5V至5.5V过流限制过温保护逻辑控制关断

CXLD64250是一款输出电流可达2A的超低压差线性稳压器，外接很少的元件就能稳定地输出低电压和大电流。它具有高精度、超低压差、低静态电流的特点。CXLD64250在输入电压2.5V至5.5V范围内工作，可以输出2A电流，输入输出元件分别仅需要2.2μF和10μF陶瓷电容。高带宽的环路提供了优异的瞬态响应特性。它是专门为需要低压大电流电源的数字电路（如PLD、DSP、微控制器等）而设计的。CXLD64250还包括了过流限制、过温保护、逻辑控制关断、输出低于标准值10％的故障指示等特点。固定输出电压版本分别有1.5V、1.8V、2.5V、3.3V可供选择，也提供可调输出电压版本。由于基准电压为0.8V，因此输出电压可设置为：0.8V至4.5V

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

CXLD64250是一款输出电流可达2A的超低压差线性稳压器，外接很少的元件就能稳定地输出低电压和大电流。它具有高精度、超低压差、低静态电流的特点。CXLD64250在输入电压2.5V至5.5V范围内工作，可以输出2A电流，输入输出元件分别仅需要2.2μF和10μF陶瓷电容。高带宽的环路提供了优异的瞬态响应特性。它是专门为需要低压大电流电源的数字电路（如PLD、DSP、微控制器等）而设计的。CXLD64250还包括了过流限制、过温保护、逻辑控制关断、输出低于标准值10％的故障指示等特点。固定输出电压版本分别有1.5V、1.8V、2.5V、3.3V可供选择，也提供可调输出电压版本。由于基准电压为0.8V，因此输出电压可设置为：0.8V至4.5V。The CXLD64250 is a 2A low-dropout linear regulator that provides a low voltage, high current output with a minimum of external components. It offers high precision, ultra-low dropout, and low ground current. The CXLD64250 operates from an input of 2.5V to 5.5V. This regulator uses small, 2.2μF ceramic input capacitors and 10μF ceramic output capacitors to deliver 2A output current. High bandwidth provides excellent transient response. It is designed to drive digital circuits requiring low voltage at high currents (i.e., PLDs, DSPs, microcontrollers, etc.). Other features include thermal and current limit protection, a logic-control shutdown mode and an error flag output that goes low when the output voltage drops 10% below nominal value. It is available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable device with a 0.8V reference voltage. The adjustable output voltage can be set from 0.8V to 4.5V.

   产品特点 返回TOP

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• 保证可以输出2A电流

• 2A负载时600mV低压差

• 用陶瓷输出电容就可稳定工作

• ±1.8%输出电压精度

• 1mA低静态电流

关断时0.1μA静态电流

• 优异的电压和负载调整率

• 热关断和电流限制保护

• 输出故障指示

• 采用To-263、To-220和SOP-8(FD)封装

• 符合RoHS规范及Pb-Free

z 2A Guaranteed Output Current 

z 600mV Dropout Voltage at 2A Output 

z Stable with Ceramic Capacitors 

z ±1.8% Output Voltage Accuracy 

z 1mA Low-Ground Pin Current 0.1μA Quiescent Current in Shutdown Mode 

z Excellent Line and Load Regulation 

z Thermal Shutdown and Current Limit Protection 

z Error Flag Indication 

z Available in To-263,To-220 and SOP-8 (FD) Packages 

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

   应用范围 返回TOP

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• 低压数字IC电源

• PC附加卡

• 高效率线性电源

• 后端稳压器

z LDO Linear Regulator for Low-Voltage Digital IC 

z PC Add-In Cards 

z High Efficiency Linear Power Supplies 

z Post Regulator

   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