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6A同步降压型转换器6A Synchronous Step-Down Converter CXSD62293是一款自适应导通时间、谷值电流模、同步降压型DC-DC转换器，可提供高达6A的负载电流。CXSD62293可以在输入电压3.3V～5.5V的范围内提供0.6V～2V的可调节输出电压。芯片内部集成同步开关管，提高转换效率，并且不需要外接肖特基二极管

CXSD62293是一款自适应导通时间、谷值电流模、同步降压型DC-DC转换器，可提供高达6A的负载电流。CXSD62293可以在输入电压3.3V～5.5V的范围内提供0.6V～2V的可调节输出电压。芯片内部集成同步开关管，提高转换效率，并且不需要外接肖特基二极管。CXSD62293可设置为三种不同的开关频率，并可外强制为PWM连续模式或脉冲跳跃模式。CXSD62293集成内部软启动、输出软放电、电源正常指示、外部使能和开关自举功能，同时支持输出电压下降模式和外部跟踪模式。短路保护和过温保护机制提高系统的可靠性。通过外设MODE引脚可以选择工作模式及频率。CXSD62293采用裸露底盘TQFN-20封装。The CXSD62293 is a synchronous, step-down dc-dc converter capable of providing up to 6A output current employing adaptive on-time valley-current mode. The CXSD62293 operates from an input voltage range of 3.3V to 5.5V and provides a regulated output voltage from 0.6V to 2V. The internal synchronous power switch increases efficiency and eliminates the need for an external Schottky diode. The ECXSD62293features three switching frequency setting. It can be externally set for forced PWM continuous mode or pulse skipping mode. The ECXSD62293integrates internal soft-start function, droop support, external tracking support, output soft discharge, integrated bootstrap switch, power good function, and enable function. CXSD62293features short circuit and thermal protection circuits to increase system reliability. Externally MODE pin allows for frequency and operation mode choice. The CXSD62293is available in a low profile 20pin 4mmx4mm TQFN package with the exposed pad.

产品特点 返回TOP

• 输入电压范围：3.3V至5.5V

• 标准外围器件最少

• 6A输出电流

• 低导通电阻（主开关管/同步管）：35mΩ

• 0.8M～1.2MHz的可选择开关频率

• PWM模式或脉冲跳跃模式

• 集成完整的保护功能

• 良好的线性和负载瞬态响应

• 内置软启动时间：1.6ms

• 输出电压范围：0.6V至2V

• 裸露底盘的4mm×4mm TQFN-20封装

• 符合RoHS规范及Pb-Free

Halogen-Free

3.3V to 5.5V Power Input Voltage Range

Minimum External Components Count

6A Available Load Current

35m Integrated FET Switches

Selectable 0.8MHz to 1.2MHz Frequency

PWM Mode and Pulse-Skip Mode

Integrated complete protection

Excellent Line and Load Transient Response

Internal Soft-start with 1.6ms

Adjustable Output Voltage from 0.6V to 2 V

Available in 20pin 4mm′ 4mm TQFN Package

with Exposed Pad

RoHS Compliant and 100% Lead(Pb)-Free

Halogen-Free

应用范围 返回TOP

• 3.3V至5V供电电源

• 高性能的DSP、FPGA、ASIC及微处理器

• 基站、电信和网络设备供电电源

• 笔记本电脑和超级本

Distributed 3.3V and 5V Power Supplies

High Performance DSPs, FPGAs, ASICs and

microprocessors

Base Station, Telecom, and Networking

Equipment Power Supplies

Notebook and Ultrabook

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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DC/DC开关稳压器 > 降压转换器/控制器
Part Number	remark	Iout (mA)	Vin (V)	Vout (V)	IQ (μA)	FB (V)	Freq. (KHz)	Peak Efficency (%)	Package
CXSD62255	6A, 30V, Synchronous Step-Down Converter with Programmable Frequency	6000	2.7~30	0.8~20	1000	0.8	100~1000	>95	TQFN-23L
CXSD62256	2A, 30V, 340KHz Synchronous Step-Down Converter	2000	4.5~30	0.92~20	1000	0.92	340	>94	SOP-8
CXSD62257	3A, 30V, 340KHz Synchronous Step-Down Converter	3000	4.5~30	0.92~20	1000	0.92	340	>94	SOP-8(EP)
CXSD62258	CC/CV Mode Synchronous Step-Down Converter	4000	8~36	0.6~12	1000	0.6	80~800	>95	SOP-8(EP)
CXSD62259	Dual-Channel CC/CV Mode Synchronous Step-Down Controller	5000	8~36	0.6~12	1000	0.6	150	>95	MSOP-10
CXSD62260	CC/CV Mode Synchronous Step-Down Converter	4000	4.5~36	0.6~20	1000	0.6	80~800	>95	SOP-8(EP)
CXSD62261	CC/CV Mode Synchronous Step-Down Converter	4000	4.5~30	0.6~12	1000	0.6	80~800	>95	SOP-8(EP)
CXSD62262	Dual-Channel CC/CV Mode Synchronous Step-Down Converter	5000	8~36	0.6~12	1000	0.6	80~800	95	SOP-8(EP)
CXSD62263	5A, CC/CV Mode Step-Down Converter	5000	8~36	1.18~12	500	1.18	120	>95	SOP-8(EP)
CXSD62264	CC/CV Mode Step-Down Converter	3000	8~36	1.18~12	500	1.18	120	>95	SOP-8
CXSD62265	3A,40V,200KHz Step-Down Converter	3000	4.75~40	0.92~15	550	0.92	200	>95	SOP-8(EP)
CXSD62266	1.5MHz, 800mA Synchronous Step-Down Converter with Soft Start	800	2.5 ~ 5.5	0.6~Vin	270	0.6	1500	> 96	TSOT23-5,SOT23-5
CXSD62267	3A, Synchronous Step-Down Converter	3000	2.7~5.5	0.6~5	500	0.6	1000	>96	TDFN-10,SOP-8(EP)
CXSD62268	1A, 2.25MHz Synchronous Step-Down DC/DC Regulator	1000	2.7~5.5	0.6~3.3	30	0.6	2250	>94	TDFN-6
CXSD62269	1.5MHz,1A Synchronous Step-Down Converter with Soft Start	1000	2.5 ~ 5.5	0.6~5	270	0.6	1500	> 96	TDFN-6,SOT23-5,TSOT23-5
CXSD62270	5A, 3MHz Synchronous Step-Down DC-DC with I2C Compatible Interface	5000	2.7~5.5	0.6~1.4	52	-	3000	-	WCSP-20
CXSD62271	1A, 2.25MHz Synchronous Step-Down DC/DC Regulator	1000	2.7 ~ 5.5	0.6~Vin	30	0.6	2250	> 95	TDFN-6,TSOT23-5
CXSD62272	Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter	1000 /1000	2.5 ~ 5.5	0.6~5	270	0.6	1500	> 96	TDFN-12
CXSD62273	Dual 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator	1000/1000	2.7 ~ 5.5	0.6~Vin	45	0.6	2250	> 95	TDFN-10
CXSD62274	Dual 1A, 2.25MHz Synchronous Step-Down DC/DC Regulator	1000/1000	2.7 ~ 5.5	0.6~Vin	30	0.6	2250	> 95	TDFN-12
CXSD62275	1.2A,30V,1.2MHz Step-Down Converter	1200	4.5 ~ 30	0.8~15	550	0.8	1200	> 92	SOT23-6
CXSD62276	1.5A, 2.25MHz Synchronous Step-Down DC/DC Regulator	1500	2.7 ~ 5.5	0.6~Vin	30	0.6	2250	> 95	TDFN-6
CXSD62277	1.5A,40V,200KHz Step-Down Converter	1500	4.75 ~ 40	0.92~15	550	0.92	200	> 95	SOP-8
CXSD62278	2A, Synchronous Step-Down Converter	2000	2.7 ~ 5.5	0.8~5	500	0.8	1000	> 96	SOP-8
CXSD62279	2A, 30V, 340KHz SynchronousStep-Down Converter	2000	4.5 ~ 30	0.923~20	450	0.923	340	>93	SOP-8
CXSD62280	2A, 30V, 340KHz Synchronous Step-Down Converter	2000	4.5~30	0.923~20	450	0.923	340	>95	SOP-8
CXSD62281	2A, 30V, 340KHz Synchronous Step-Down Converter	2000	4.5~30	0.923~20	450	0.923	340	>95	SOP-8
CXSD62282	3A,30V,500KHz Step-Down Converter	3000	4. 5 ~ 30	0.8~12	450	0.8	500	> 95	SOP-8(EP)
CXSD62283	3A, 28V, 500kHz Synchronous Step-Down Converter	3000	4.5 ~ 28	0.8~24	1100	0.8	500	>95	SOP-8(EP)
CXSD62284	3A, 28V, 500kHz Synchronous Step-Down Converter	3000	4.5 ~ 28	0.8~24	1100	0.8	500	>95	SOP-8（EP）
CXSD62285	3A, 28V, 1MHz Synchronous Step-Down Converter	3000	4.5 ~ 28	0.8~24	1100	0.8	1000	>95	SOP-8(EP),TDFN-8(EP)
CXSD62286	3A,40V,200KHz Step-Down Converterr	3000	4.75 ~ 40	0.92~15	550	0.92	200	>95	SOP-8(EP)
CXSD62287	3A, 28V, 1MHz Synchronous Step-Down Converter	3000	4.5 ~ 28	0.8~24	1100	0.8	1000	>95	SOP-8（EP）
CXSD62288	3A, 30V, 340KHz Synchronous Step-Down Converter	3000	4.5 ~ 30	0.925~12	450	0.925	340	>95	SOP-8(EP)
CXSD62289	3A, 30V, 340KHz Synchronous Step-Down Converter	3000	4.5~30	0.923~20	450	0.925	340	>95	SOP-8(EP)
CXSD62290	3.2A, Synchronous Step-Down Converter	3200	2.7 ~ 5.5	0.8~5	500	0.8	1000	> 96	SOP-8(EP)
CXSD62291	4A, 21V, 500KHz Synchronous Step-Down Converter	4000	4.5 ~ 21	0.8~15	900	0.808	500	>95	SOP-8(EP)
CXSD62292	5A,30V,500KHz Step-Down Converter	5000	5.5 ~ 30	1.222~26	550	1.222	500	> 95	SOP-8(EP)
CXSD62293	6A Synchronous Step-Down Converter	6000	3.3~5.5	0.6~2	1000	0.6~2	1200	>93	TQFN-20
CXSD62294	4A, Synchronous Step-Down Converter	4000	2.7~5.5	0.6-~5	500	0.6	1000	96	TDFN-10
CXSD62295	2A, 24V, 340KHz Synchronous Step-Down Converter	2000	4.5~24	0.92~20	1000	0.92	340	94	SOP-8,TSOT23-8
CXSD62296	3A, 24V, 340KHz Synchronous Step-Down Converter	3000	4.5~24	0.92~20	1000	0.92	340	94	SOP-8

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点击次数：238 更新时间：2017/11/2 12:53:47 【打印此页】【关闭】

上一条：5A, 30V, 500KHz 降压型DC-DC变换器5A,30V,500KHz Step-Down Converter CXSD62292是一款采用电流模脉宽调制架构的降压型DC-DC变换器，可以提供高达5A的负载电流，具有很好的线性调整率和负载调整率。CXSD62292可以在5.5V～30V宽输入电压范围内稳定工作，通过外部分压电阻调节实现1.222～26V的输出电压下一条：4A同步降压型DC-DC变换器4A, Synchronous Step-Down Converter CXSD62294A是一款采用1 MHz频率，电流模的降压型直流-直流变换器，提供高达4A的输出电流。该芯片的工作电压范围从2.7V到5.5V，输出电压从0.6V到5V，芯片内部集成了主开关管和同步管以提高效率，不需外接肖特基二极管

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