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输出4A电流高效同步降压型DC/DC变换器4.5至30V输入电压CXSD62543快速瞬态响应的瞬时PWM结构

产品型号：	CXSD62543
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：	56 次

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产品简介

CXSD62543开发了一种高效同步降压型DC/DC变换器，能够输出4A的输出电流。在4.5V到30V的宽输入电压范围内工作，集成了主开关和同步开关以及极低的RDS（ON），以最大限度地降低传导损耗。采用专有的瞬时脉宽调制结构，可在高降压应用中实现快速瞬态响应，并在轻负载下实现高效率。

技术参数

输入电压范围 (VIN)	≤ 4.5~30V
输出电压 (VOUT)	ADJ(0.6)V
输出电流 (IOUT)	4A
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):200
Application	MOSFET (Ron H) (mΩ):80
Operating temp	-40℃~125℃
Reference design	Soft-start Time (ms)):ext
MOSFET (Ron L) (mΩ)	50
Shutdown Current (uA)	5
Auto-discharge (ohm)	current
Feature/ Special Function	70mA output discharge
Output Voltage Acurracy	±1.5%

产品详细介绍

CXSD62543 develops a high efficiency synchronous step-down DC/DC converter capable of delivering 4A output current. CXSD62543 operates over a wide input voltage range from 4.5V to 30V and integrates main switch and synchronous switch with very low R_DS(ON) to minimize the conduction loss.CXSD62543 adopts the proprietary instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500kHz under continous conduction mode to minimize the size of inductor and capacitor.

产品特点 返回TOP

· Low R_DS(ON) for Internal Switches (Top/Bottom): 80/50mΩ

· 4.5-30V Input Voltage Range

· Instant PWM Architecture to Achieve Fast Transient Responses

· External Softstart Limits the Inrush Current

· Pseudo-Constant Frequency: 500khz at Heavy Loads

· 4A Continuous, 5A Peak Load Current Capability

· 1.5% 0.6V Reference

· Output Over Current Limit

· Output Short Circuit Protection with Current Fold Back

· Thermal Shutdown and Auto Recovery

· Rohs Compliant and Halogen Free

· Compact Package: SO8E

应用范围 返回TOP

· LCD-TV

· SetTop Box

· Notebook

· High power AP router

· LCD Monitor

· DVR/NVR

· NAS

技术规格书（产品PDF) 返回TOP

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！

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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：4.5V到18V输入电压高效500kHz同步降压DC/DC转换器4.0A输出电流CXSD62542快速瞬态响应的瞬时PWM结构

下一篇：CXSD62544 High Efficiency, Fast Response, 6A, 18V Input Synchronous Buck with I2C Interface

输出4A电流高效同步降压型DC/DC变换器4.5至30V输入电压CXSD62543快速瞬态响应的瞬时PWM结构

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输出4A电流高效同步降压型DC/DC变换器4.5至30V输入电压CXSD62543快速瞬态响应的瞬时PWM结构

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。。。。

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关注我们

相关芯片选择指南返回TOP 更多同类产品。。。。