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2路输出电流CXSD62493 CXSD62493A CXSD62493B高效高频同步降压DC-DC稳压器IC纹波小短路和过压闭锁保护软启动

产品型号：	CXSD62493
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：	34 次

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产品简介

CXSD62493 CXSD62493A CXSD62493B是一种高效、高频同步降压DC-DC稳压器集成电路，能够提供高达2个输出电流在2.7V至5.5V的宽输入电压范围内工作，并将主开关和同步开关与极低的RD（开）集成，以将传导损耗降至最低。
输出电压纹波小，外部电感和电容尺寸小，开关频率大于1MHz。集成了短路和过压闭锁保护

技术参数

输入电压范围 (VIN)	≤ 2.7~5.5V
输出电压 (VOUT)	ADJ(0.6)V
输出电流 (IOUT)	2A
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):55
Application	MOSFET (Ron H) (mΩ):110
Operating temp	-40℃~125℃
Reference design	Soft-start Time (ms)):1.2
MOSFET (Ron L) (mΩ)	80
Shutdown Current (uA)	.1
Auto-discharge (ohm)	50
Protection mode	Latch off
Feature/ Special Function	3A Peak current
Output Voltage Acurracy	±2%

产品详细介绍

The CXSD62493 CXSD62493A CXSD62493B is a high-efficiency, high frequency synchronous step-down DC-DC regulator IC capable of delivering up to2Aoutput current. The CXSD62493 CXSD62493A CXSD62493B operates over a wide input voltage range from 2.7V to 5.5V and integrate main switch and synchronous switch with very low R_DS(ON) to minimize the conduction loss.

Low output voltage ripple and small external inductor and capacitor sizes are achieved with greater than 1MHz switching frequency.

CXSD62493 CXSD62493A CXSD62493B integrates short circuit and over-voltage latch off protection.

产品特点 返回TOP

· Low R_DS(ON) for Internal Switches

(top/bottom):110mΩ/80mΩ

· 2.7-5.5V Input Voltage Range

· 2AContinuous,3APeakLoad Current Capability

· 1MHz Switching Frequency Minimizes the External Components

· Internal Softstart Limits the Inrush Current

· Reliable Short Circuit Protection:

CXSD62493 CXSD62493A CXSD62493B: Latch off Protection

· Reliable Over-voltage Protection:

CXSD62493 CXSD62493A CXSD62493B: Latch off Protection

· 100% Dropout Operation

· RoHS Compliant and Halogen Free

· Compact Package: SOT23-5

应用范围 返回TOP

· LCD TV

· Set Top Box

· Net PC

· Mini-Notebook PC

· Access Point Router

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！

QQ截图20160419174301.jpg

产品封装图 返回TOP

电路原理图 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

用户评论

上一篇：2.7V至5.5V输入电压CXSD62492L高效高频同步降压DC-DC稳压器IC交换机的低RDS开关频率1MHz软启动限制浪涌电流

下一篇：CXSD62493A

2路输出电流CXSD62493 CXSD62493A CXSD62493B高效高频同步降压DC-DC稳压器IC纹波小短路和过压闭锁保护软启动

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2路输出电流CXSD62493 CXSD62493A CXSD62493B高效高频同步降压DC-DC稳压器IC纹波小短路和过压闭锁保护软启动

产品资料下载

产品简介

技术参数

产品详细介绍

目录

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相关芯片选择指南返回TOP 更多同类产品。。。。