首页 > 产品中心 > 电源管理芯片 > DC-DC转换器 > 500kHz至2.5MHz可调开关频率高效的同步降压DC/DC转换器4.5V到40V输入电压3路输出电流CXSD62540

500kHz至2.5MHz可调开关频率高效的同步降压DC/DC转换器4.5V到40V输入电压3路输出电流CXSD62540

产品型号：	CXSD62540
产品类型：	DC-DC转换器
产品系列：	Buck降压型芯片
产品状态：	量产
浏览次数：	55 次

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产品简介

CXSD62540开发了一种高效的同步降压型DC/DC转换器，能够输出3 a负载电流。在4.5V到40V的宽输入电压范围内工作，并集成了主开关和同步开关以及极低的RDS（ON），以最小化传导损耗。采用峰值电流控制方案。开关频率可通过外部电阻从500kHz调整到2.5MHz。该设备还具有超低静态运行，以实现在轻负载下的高效率。并且内部软启动限制了通电时的涌入电流。

技术参数

输入电压范围 (VIN)	≤ 4.5~40V
输出电压 (VOUT)	ADJ(0.6)V
输出电流 (IOUT)	3A
工作频率	1500 Hz
转换效率	96%%
封装类型	SOP-8(FD)
Topology	Buck降压型芯片
Control method	PWM/PFM
Switching frequency	1500
Protection	过流/过压/过温
Features	静态工作电流Quiescent Current Typ (uA):18
Application	MOSFET (Ron H) (mΩ):110
Operating temp	-40℃~125℃
Reference design	Soft-start Time (ms)):1
MOSFET (Ron L) (mΩ)	70
Shutdown Current (uA)	1
Protection mode	foldback
Output Voltage Acurracy	±1.5%

产品详细介绍

The CXSD62540 develops a high efficiency synchronous step down DC/DC converter capable of delivering3Aload current. The CXSD62540 operates over a wide input voltage range from 4.5V to 40V and integrates main switch and synchronous switch with very low R_DS(ON) to minimize the conduction loss.The CXSD62540 adopts peak current control scheme. The switching frequency is adjustable from 500kHz to 2.5MHz using an external resistor. The device also features ultra low quiescent operating to achieve high efficiency under light load. And the internal soft-start limits inrush current during power on.CXSD62540 is available in TSOT23-8 package.

产品特点 返回TOP

· Low R_DS(ON) for Internal Switches (Top/Bottom): 110/70mΩ

· 4.5-40V Input Voltage Range

· Internal Compensation

· Internal 1ms Soft-Start Limits the Inrush Current

· Adjustable Switching Frequency Range: 500kHz To 2.5MHz

· 3AOutput Current Capability

· 1.5% 0.6V Reference

· Low Quiescent Current

· Cycle-By-Cycle Peak Current Limitation

· Short Circuit Protection

· Thermal Shutdown and Auto Recovery

· Rohs Compliant and Halogen Free

· Compact Package: TSOT23-8

应用范围 返回TOP

· LCD-TV

· SetTop Box

· Notebook

· Storage

· High Power AP Router

· Networking

技术规格书（产品PDF) 返回TOP

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Single Output Step Down Regulator (Integrated Switch)
Number	Vin (min) (V)	Vin (max) V	UVLO (V)	Iout (max) (A)	Vout (min) (V)	Out. Voltage Acurracy	Quiescent Current Typ (uA)	Shutdown Current (uA)	MOSFET (Ron H) (mΩ)	MOSFET (Ron L) (mΩ)
CXSD62478	2.5	5.5	2.5	3.5	0.6	±1.5%	18	0.1	55	35
CXSD62479	2.5	5.5	2.5	1	0.6	±2%	40	0.1	260	170
CXSD62480A	2.5	5.5	2.4	1.2	0.6	±1.5%	50	0.1	200	150
CXSD62480B	2.5	5.5	2.4	0.6	0.6	±1.5%	50	0.1	300	200
CXSD62481	2.5	5.5	2.5	1	0.6	±1.5%	50	0.1	200	150
CXSD62481A	2.5	5.5	2.5	1	0.6	±1.5%	50	0.1	200	150
CXSD62481B	2.5	5.5	2.5	1	3.3	±1.5%	50	0.1	200	150
CXSD62481H	2.5	5.5	2.5	1.5	0.6	±1.5%	50	0.1	180	120
CXSD62481V	2.5	5.5	2.5	1.5	0.6	±1.5%	50	0.1	180	120
CXSD62482	2.5	5.5	2.5	1	0.6	±2%	40	0.1	230	150
CXSD62483	2.5	5.5	2.5	1	0.6	±2%	60	0.1	260	170
CXSD62483A	2.5	5.5	2.5	1	0.6	±2%	60	0.1	260	170
CXSD62483C	2.5	5.5	2.5	1	0.6	±2%	60	0.1	260	170
CXSD62484	2.5	5.5	2.5	1.5	0.6	±2%	90	0.1	180	120
CXSD62484L	2.5	5.5	2.5	1	0.6	±2%	90	0.1	250	200
CXSD62485	2.5	5.5	2.5	1	0.6	±2%	40	0.1	260	170
CXSD62486	2.5	6.5	2.5	1	0.6	±2%	40	0.1	260	170
CXSD62487	2.5	6.5	2.5	1	0.6	±2%	40	0.1	260	170
CXSD62488	2.5	5.5	2.5	1	0.6	±2%	40	0.1	270	160
CXSD62489	2.5	5.5	2.5	1	0.6	±2%	40	0.1	230	150
CXSD62490	2.7	5.5	2.5	3	0.6	±2%	55	0.1	110	80
CXSD62490A	2.7	5.5	2.5	3	0.6	±2%	55	0.1	110	80
CXSD62490B	2.7	5.5	2.65	3	0.6	±2%	55	0.1	100	80
CXSD62490E	2.7	5.5	2.65	3	0.6	±2%	55	0.1	110	80
CXSD62491B	2.5	5.5	2.5	1.5	0.6	±2%	60	0.1	210	130
CXSD62491E	2.7	5.5	2.65	2	0.6	±2%	55	0.1	110	80
CXSD62492L	2.7	5.5	2.65	2	0.6	±2%	55	0.1	120	90
CXSD62493	2.7	5.5	2.65	2	0.6	±2%	55	0.1	110	80
CXSD62493A	2.7	5.5	2.65	2	0.6	±2%	55	0.1	110	80
CXSD62493B	2.7	5.5	2.65	2	0.6	±2%	55	0.1	110	80
CXSD62494	2.7	6.5	2.65	2	0.6	±2%	55	0.1	125	95
CXSD62494P	2.7	6.5	2.65	2	0.6	±2%	55	0.1	125	95
CXSD62495	2.7	5.5	2.7	2.5	0.6	±2%	80	0.1	100	80
CXSD62495E	2.7	5.5	2.7	2.5	0.6	±2%	80	0.1	100	80
CXSD62497	2.7	5.5	1.8	3	0.6	±1%	55	0.1	85	50
CXSD62498	2.5	5.5	2.5	3	0.8	±1.5%	18	0.1	75	55
CXSD62499	2.5	5.5	2.5	3	0.6	±1.5%	18	0.1	75	55
CXSD62500	2.5	5.5	2.5	0.45	0.6	±2%	1.5	0.1	400	200
CXSD62501	1.85	5.5	1.85	0.6	0.4	±2%	40	0.1	350	250
CXSD62502	2.5	5.5	2.5	4	0.6	±1.5%	18	0.1	75	55
CXSD62503	2.7	5.5	2.7	5	0.6	±1.5%	150	0.1	45	35
CXSD62504	2.7	5.5	2.7	4	0.6	±1.5%	60	0.1	35	15
CXSD62505	2.5	5.5	2.5	4	0.7	±1%	30	0.1	70	40
CXSD62506	2.7	5.5		6	0.6	±1.5%	150	0.1	40	30
CXSD62507	3	5.5	2.8	5	0.6	±1.5%	100	0.1	35	15
CXSD62508	3	5.5	2.9	6	0.6	±1.5%	100	0.1	35	15
CXSD62509	2.75	6	2.7	6	0.6	±1.5%	60	0.1	35	15
CXSD62510	2.5	5.5	2.5	5	0.6	±1.5%	18	0.1	55	35
CXSD62511	2.7	6.5	2.7	6	0.6	±1.5%	60	0.1	38	15
CXSD62512	2.6	5.5	2.6	6	0.7125	±1.5%	75	0.1	28	17
CXSD62513	2.7	5.5	2.65	6	0.6	±1%	50	0.1	35	15
CXSD62514	2.5	5.5	2.5	0.6	0.6	±2%	40	0.1	230	150
CXSD62514A	2.5	5.5	2.5	0.6	1.2	±2%	40	0.1	230	150
CXSD62514B	2.5	5.5	2.5	0.6	1.5	±2%	40	0.1	230	150
CXSD62514C	2.5	5.5	2.5	0.6	1.8	±2%	40	0.1	230	150
CXSD62514D	2.5	5.5	2.5	0.6	2.5	±2%	40	0.1	230	150
CXSD62514E	2.5	5.5	2.5	0.6	3.3	±2%	40	0.1	230	150
CXSD62514F	2.5	5.5	2.5	0.6	1	±2%	40	0.1	230	150
CXSD62515	2.5	5.5	2.5	1.2	0.6	±2%	40	0.1	230	150
CXSD62516	2.75	5.5	2.75	2	0.6	±1.5%	68	0.1	40	20
CXSD62517	2.75	5.5	2.75	3	0.6	±1.5%	68	0.1	35	15
CXSD62518	2.7	5.5	2.7	4	0.6	±1.5%	60	0.1	35	15
CXSD62519	4.5	23	2.4	2	0.6	±1.5%	100	5	105	50
CXSD62520	4.5	18	4.5	5	0.6	±1%	500	10	50	15
CXSD62521	5	40	4.5	0.3	0.6	±2.0%	160	5	2000
CXSD62522	6	24	4.5	0.6	0.6	±2%	400	5	420	200
CXSD62523	4.5	55	4.5	0.8	0.6	±1%	150	5	700
CXSD62524	4.5	27	4.5	1	0.6	±2%	400	5	350	150
CXSD62524C	4.5	27	4.5	1	0.6	±2%	400	5	350	150
CXSD62525	7	100	6.5	1	1.2	±2.0%	400	5	500	240
CXSD62526	7	85	6.8	1.2	1.2	±2.0%	400	8	500	240
CXSD62527	5	40	4.5	1.2	0.6	±2.0%	160	5	180	180
CXSD62528	4.5	18	4.45	2	0.6	±2%	400	5	130	120
CXSD62529	4.5	18	4.5	2	0.6	±2%	400	5	140	130
CXSD62529C	4.5	18	4.5	2	0.81	±2%	400	5	130	120
CXSD62530	4.5	23	4.5	2	0.6	±1.5%	100	5	130	60
CXSD62531	4.5	23	4.5	2	0.6	±1.5%	400	10	150	110
CXSD62532	4.5	23	4.5	2	0.6	±1.5%	400	10	150	110
CXSD62533	5	40	4.5	2	0.6	±2.0%	160	10	180
CXSD62534A	4.5	18	4.5	3	0.6	±1.5%	100	5	80	40
CXSD62534B	4.5	18	4.5	3	0.6	±1.5%	100	5	80	40
CXSD62534C	4.5	18	4.5	3	0.6	±1.5%	100	5	80	40
CXSD62534D	4.5	18	4.5	3	0.6	±1.5%	100	5	80	40
CXSD62535	4.5	23	4.5	3	0.6	±1.5%	400	10	120	85
CXSD62536	4.5	23	4.5	3	0.6	±1.5%	400	10	120	85
CXSD62537	4.5	23	4.5	3	0.6	±1.5%	100	5	105	50
CXSD62538	4.5	23	4.5	3	0.6	±1.5%	400	10	130	90
CXSD62539	4.5	30	4	3	0.6	±1.5%	200	5	90	60
CXSD62540	4.5	40	4.35	3	0.6	±1.5%	18	1	110	70
CXSD62541	5	40	4.5	3	0.6	±2.0%	160	10	180
CXSD62542	4.5	18	4.5	4	0.6	±1.5%	100	5	50	30
CXSD62543	4.5	30	4	4	0.6	±1.5%	200	5	80	50
CXSD62544	4.5	18	4.5	5	0.6	±1.5%	100	5	40	20
CXSD62545	4.5	18	4.25	6	0.6	±1%	500	10	50	15
CXSD62546	4.5	30	4	5	0.6	±1.5%	200	5	70	40
CXSD62547	4	28	3.9	6	0.6	±1.5%	100	3	40	20
CXSD62548	4	28	3.9	8	0.6	±1%	100	3	20	10
CXSD62549	4	23	3.9	6	0.6	±1%	120	6	38	19
CXSD62550	4	28	3.9	10	0.6	±1.5%	300	3	25	8
CXSD62551	4	23	3.9	8	0.6	±1%	80	3	30	10
CXSD62551A	4	23	3.9	8	0.6	±1%	120	6	22	11
CXSD62552	4	18	4.3	12	0.6	±1%	500	10	16	4
CXSD62553	4	18	3.9	16	0.6	±1.5%	150	7	7.5	2.5
CXSD62496	2.5	5.5	2.5	1.5	0.6	±1.5%	50	0.1	200	150
CXSD62496L	2.5	5.5	2.5	0.6	0.6	±1.5%	50	0.1	300	200

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上一篇：输出3A电流的高效同步降压型DC/DC变换器CXSD62539瞬时脉宽调制结构连续导通模式500kHz恒定频率4.5V到30V输入电压

下一篇：高效的800kHz自适应恒流关断时间控制非同步降压DC稳压器5-40V输入电压CXSD62541输出电流3A

500kHz至2.5MHz可调开关频率高效的同步降压DC/DC转换器4.5V到40V输入电压3路输出电流CXSD62540

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500kHz至2.5MHz可调开关频率高效的同步降压DC/DC转换器4.5V到40V输入电压3路输出电流CXSD62540

产品资料下载

产品简介

技术参数

产品详细介绍

目录

相关芯片选择指南 返回TOP 更多同类产品。。。。

用户评论

关注我们

相关芯片选择指南返回TOP 更多同类产品。。。。