CXLD64249输出1A电流的超低压差线性稳压器稳定地输出低电压和大电流高精度超低压差低静态电流

CXLD64249是一款可以输出1A电流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。CXLD64249在输入电压2.5V至5.5V范围内工作，输入输出元件分别仅需要1湩和4.7湩陶瓷电容，可以输出1A电流。高带宽的环路提供了优异的瞬态响应特性。它是专门设计用于需要低压大电流的数字电路电源（如PLD、DSP、微控制器等）。这款器件还包括了过温保护、过流限制、逻辑控制关断、输出低于标准值10％的故障指示等特点。固定输出电压分别有1.5V、1.8V、2.5V、3.3V可供选择，也提供输出电压可调的版本，它的参考电压值是0.8V，可设置的输出电压范围是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

CXLD64249是一款可以输出1A电流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。CXLD64249在输入电压2.5V至5.5V范围内工作，输入输出元件分别仅需要1湩和4.7湩陶瓷电容，可以输出1A电流。高带宽的环路提供了优异的瞬态响应特性。它是专门设计用于需要低压大电流的数字电路电源（如PLD、DSP、微控制器等）。这款器件还包括了过温保护、过流限制、逻辑控制关断、输出低于标准值10％的故障指示等特点。固定输出电压分别有1.5V、1.8V、2.5V、3.3V可供选择，也提供输出电压可调的版本，它的参考电压值是0.8V，可设置的输出电压范围是0.8V至4.5V。The CXLD64249 is a 1A low-dropout linear regulator that provides a low voltage, high current output with minimum external components. The features include precision output voltage, ultra-low dropout voltage, and low ground current. The CXLD64249 operates from an input of 2.5V to 5.5V. This regulator uses a 1μF ceramic input capacitors and a 4.7μF ceramic output capacitor to deliver 1A output current. High bandwidth provides excellent transient response. It is designed to power digital circuits requiring low voltage with 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 the nominal value. It is available in fixed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V or adjustable output voltage with a 0.8V feedback 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1A电流

• 1A负载时300mV低压差

• 用陶瓷输出电容就可稳定工作

• ±1.8%输出电压精度

• 300μA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SOT223、SOP-8和SOT-89封装

• 符合RoHS规范及Pb-Free

1A Guaranteed Output Current

 
300mV Dropout Voltage at 1A Output

 
Stable with Ceramic Capacitors

 
±1.8% Output Voltage Accuracy

 
300μA Low-Ground Pin Current 0.1μA Quiescent Current in Shutdown Mode

 
Excellent Line and Load Regulation

 
Thermal Shutdown and Current Limit Protection

 
Error Flag Indication

 
Available in SOT223, SOP-8 and SOT-89 Packages

 
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

Supply for Low-Voltage Digital IC

 
PC Add-In Cards

 
High Efficiency Linear Power Supplies

 
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