2A,同步降压型转换器2A, Synchronous Step-Down Converter CXSD62278是一款1MHz固定频率、电流模、同步降压型直流-直流转换器，能够提供高达2A的输出电流。其输入电压范围为2.7V到5.5V，提供0.8V到5V可调输出电压。同步开关内部集成提高了转换效率，不需要外接肖特基二极管

发布时间：2020-04-06 09:43:38 浏览次数：720 作者：嘉泰姆

摘要：2A,同步降压型转换器2A, Synchronous Step-Down Converter CXSD62278是一款1MHz固定频率、电流模、同步降压型直流-直流转换器，能够提供高达2A的输出电流。其输入电压范围为2.7V到5.5V，提供0.8V到5V可调输出电压。同步开关内部集成提高了转换效率，不需要外接肖特基二极管

CXSD62278是一款1MHz固定频率、电流模、同步降压型直流-直流转换器，能够提供高达2A的输出电流。其输入电压范围为2.7V到5.5V，提供0.8V到5V可调输出电压。同步开关内部集成提高了转换效率，不需要外接肖特基二极管。PWM模式使得输出电压纹波非常低，适于噪声敏感应用。CXSD62278的短路保护和过温保护功能提高了系统的可靠性。软启动外部可调，避免上电过程产生浪涌电流。芯片采用SOP-8封装。The CXSD62278 is a 1 MHz fixed frequency synchronous, current-mode, step-down dc-dc converter capable of providing up to 2A output current. The CXSD62278 operates from an input range of 2.7V to 5.5V and provides a regulated output voltage from 0.8V to 5V. The internal synchronous power switch improves efficiency and eliminates the need for an external Schottky diode. Forced PWM operation provides very low output ripple voltage for noise sensitive applications. The CXSD62278 features short circuit and thermal protection circuits to improve system reliability. Externally adjustable soft-start avoids input inrush current during startup. The CXSD62278is available in SOP-8 package.

产品特点 返回TOPYoU嘉泰姆

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• 输入电压范围为2.7V到5.5VYoU嘉泰姆

• 转换效率高达96%YoU嘉泰姆

• 2A负载电流YoU嘉泰姆

• 100/60mΩ的P型/N型集成开关

• 1MHz开关频率

• 100%占空比低压差工作YoU嘉泰姆

• 短路保护和过温保护

• 集成UVLOYoU嘉泰姆

• 出色的线性和负载瞬态响应

• SOP-8封装YoU嘉泰姆

• 符合RoHS规范、Pb-Free与Halogen-FreeYoU嘉泰姆

2.7V to 5.5V Input Voltage RangeYoU嘉泰姆

High Efficiency up to 96%YoU嘉泰姆

2A Available Load CurrentYoU嘉泰姆

100/60m Integrated PFET/NFET SwitchesYoU嘉泰姆

1MHz Switching FrequencyYoU嘉泰姆

100% Duty Cycle Low Dropout OperationYoU嘉泰姆

Short Circuit and Thermal ProtectionYoU嘉泰姆

Integrated UVLOYoU嘉泰姆

Excellent Line and Load Transient ResponseYoU嘉泰姆

Available in SOP-8 PackageYoU嘉泰姆

RoHS Compliant and 100% Lead(Pb)-FreeYoU嘉泰姆

Halogen-FreeYoU嘉泰姆

应用范围 返回TOPYoU嘉泰姆

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DC/DC开关稳压器 > 降压转换器/控制器</span>YoU嘉泰姆
Part YoU嘉泰姆 NumberYoU嘉泰姆	remarkYoU嘉泰姆	Iout YoU嘉泰姆 (mA)YoU嘉泰姆	Vin YoU嘉泰姆 (V)YoU嘉泰姆	Vout YoU嘉泰姆 (V)YoU嘉泰姆	IQ YoU嘉泰姆 (μA)YoU嘉泰姆	FB YoU嘉泰姆 (V)YoU嘉泰姆	Freq. YoU嘉泰姆 (KHz)YoU嘉泰姆	Peak YoU嘉泰姆 Efficency YoU嘉泰姆 (%)YoU嘉泰姆	PackageYoU嘉泰姆
CXSD62255YoU嘉泰姆	6A, 30V, Synchronous Step-Down Converter with Programmable FrequencyYoU嘉泰姆	6000YoU嘉泰姆	2.7~30YoU嘉泰姆	0.8~20YoU嘉泰姆	1000YoU嘉泰姆	0.8YoU嘉泰姆	100~1000YoU嘉泰姆	>95YoU嘉泰姆	TQFN-23LYoU嘉泰姆
CXSD62256YoU嘉泰姆	2A, 30V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	2000YoU嘉泰姆	4.5~30YoU嘉泰姆	0.92~20YoU嘉泰姆	1000YoU嘉泰姆	0.92YoU嘉泰姆	340YoU嘉泰姆	>94YoU嘉泰姆	SOP-8YoU嘉泰姆
CXSD62257YoU嘉泰姆	3A, 30V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5~30YoU嘉泰姆	0.92~20YoU嘉泰姆	1000YoU嘉泰姆	0.92YoU嘉泰姆	340YoU嘉泰姆	>94YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62258YoU嘉泰姆	CC/CV Mode Synchronous Step-Down ConverterYoU嘉泰姆	4000YoU嘉泰姆	8~36YoU嘉泰姆	0.6~12YoU嘉泰姆	1000YoU嘉泰姆	0.6YoU嘉泰姆	80~800YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62259YoU嘉泰姆	Dual-Channel CC/CV Mode Synchronous Step-Down ControllerYoU嘉泰姆	5000YoU嘉泰姆	8~36YoU嘉泰姆	0.6~12YoU嘉泰姆	1000YoU嘉泰姆	0.6YoU嘉泰姆	150YoU嘉泰姆	>95YoU嘉泰姆	MSOP-10YoU嘉泰姆
CXSD62260YoU嘉泰姆	CC/CV Mode Synchronous Step-Down ConverterYoU嘉泰姆	4000YoU嘉泰姆	4.5~36YoU嘉泰姆	0.6~20YoU嘉泰姆	1000YoU嘉泰姆	0.6YoU嘉泰姆	80~800YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62261YoU嘉泰姆	CC/CV Mode Synchronous Step-Down ConverterYoU嘉泰姆	4000YoU嘉泰姆	4.5~30YoU嘉泰姆	0.6~12YoU嘉泰姆	1000YoU嘉泰姆	0.6YoU嘉泰姆	80~800YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62262YoU嘉泰姆	Dual-Channel CC/CV Mode Synchronous Step-Down ConverterYoU嘉泰姆	5000YoU嘉泰姆	8~36YoU嘉泰姆	0.6~12YoU嘉泰姆	1000YoU嘉泰姆	0.6YoU嘉泰姆	80~800YoU嘉泰姆	95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62263YoU嘉泰姆	5A, CC/CV Mode Step-Down ConverterYoU嘉泰姆	5000YoU嘉泰姆	8~36YoU嘉泰姆	1.18~12YoU嘉泰姆	500YoU嘉泰姆	1.18YoU嘉泰姆	120YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62264YoU嘉泰姆	CC/CV Mode Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	8~36YoU嘉泰姆	1.18~12YoU嘉泰姆	500YoU嘉泰姆	1.18YoU嘉泰姆	120YoU嘉泰姆	>95YoU嘉泰姆	SOP-8YoU嘉泰姆
CXSD62265YoU嘉泰姆	3A,40V,200KHz Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.75~40YoU嘉泰姆	0.92~15YoU嘉泰姆	550YoU嘉泰姆	0.92YoU嘉泰姆	200YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62266YoU嘉泰姆	1.5MHz, 800mA Synchronous Step-Down Converter with Soft StartYoU嘉泰姆	800YoU嘉泰姆	2.5 ~ 5.5YoU嘉泰姆	0.6~VinYoU嘉泰姆	270YoU嘉泰姆	0.6YoU嘉泰姆	1500YoU嘉泰姆	> 96YoU嘉泰姆	TSOT23-5,SOT23-5YoU嘉泰姆
CXSD62267YoU嘉泰姆	3A, Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	2.7~5.5YoU嘉泰姆	0.6~5YoU嘉泰姆	500YoU嘉泰姆	0.6YoU嘉泰姆	1000YoU嘉泰姆	>96YoU嘉泰姆	TDFN-10,SOP-8(EP)YoU嘉泰姆
CXSD62268YoU嘉泰姆	1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorYoU嘉泰姆	1000YoU嘉泰姆	2.7~5.5YoU嘉泰姆	0.6~3.3YoU嘉泰姆	30YoU嘉泰姆	0.6YoU嘉泰姆	2250YoU嘉泰姆	>94YoU嘉泰姆	TDFN-6YoU嘉泰姆
CXSD62269YoU嘉泰姆	1.5MHz,1A Synchronous Step-Down Converter with Soft StartYoU嘉泰姆	1000YoU嘉泰姆	2.5 ~ 5.5YoU嘉泰姆	0.6~5YoU嘉泰姆	270YoU嘉泰姆	0.6YoU嘉泰姆	1500YoU嘉泰姆	> 96YoU嘉泰姆	TDFN-6,SOT23-5,TSOT23-5YoU嘉泰姆
CXSD62270YoU嘉泰姆	5A, 3MHz Synchronous Step-Down DC-DC with I2C Compatible InterfaceYoU嘉泰姆	5000YoU嘉泰姆	2.7~5.5YoU嘉泰姆	0.6~1.4YoU嘉泰姆	52YoU嘉泰姆	-YoU嘉泰姆	3000YoU嘉泰姆	-YoU嘉泰姆	WCSP-20YoU嘉泰姆
CXSD62271YoU嘉泰姆	1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorYoU嘉泰姆	1000YoU嘉泰姆	2.7 ~ 5.5YoU嘉泰姆	0.6~VinYoU嘉泰姆	30YoU嘉泰姆	0.6YoU嘉泰姆	2250YoU嘉泰姆	> 95YoU嘉泰姆	TDFN-6,TSOT23-5YoU嘉泰姆
CXSD62272YoU嘉泰姆	Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC ConverterYoU嘉泰姆	1000 /1000YoU嘉泰姆	2.5 ~ 5.5YoU嘉泰姆	0.6~5YoU嘉泰姆	270YoU嘉泰姆	0.6YoU嘉泰姆	1500YoU嘉泰姆	> 96YoU嘉泰姆	TDFN-12YoU嘉泰姆
CXSD62273YoU嘉泰姆	Dual 1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorYoU嘉泰姆	1000/1000YoU嘉泰姆	2.7 ~ 5.5YoU嘉泰姆	0.6~VinYoU嘉泰姆	45YoU嘉泰姆	0.6YoU嘉泰姆	2250YoU嘉泰姆	> 95YoU嘉泰姆	TDFN-10YoU嘉泰姆
CXSD62274YoU嘉泰姆	Dual 1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorYoU嘉泰姆	1000/1000YoU嘉泰姆	2.7 ~ 5.5YoU嘉泰姆	0.6~VinYoU嘉泰姆	30YoU嘉泰姆	0.6YoU嘉泰姆	2250YoU嘉泰姆	> 95YoU嘉泰姆	TDFN-12YoU嘉泰姆
CXSD62275YoU嘉泰姆	1.2A,30V,1.2MHz Step-Down ConverterYoU嘉泰姆	1200YoU嘉泰姆	4.5 ~ 30YoU嘉泰姆	0.8~15YoU嘉泰姆	550YoU嘉泰姆	0.8YoU嘉泰姆	1200YoU嘉泰姆	> 92YoU嘉泰姆	SOT23-6YoU嘉泰姆
CXSD62276YoU嘉泰姆	1.5A, 2.25MHz Synchronous Step-Down DC/DC RegulatorYoU嘉泰姆	1500YoU嘉泰姆	2.7 ~ 5.5YoU嘉泰姆	0.6~VinYoU嘉泰姆	30YoU嘉泰姆	0.6YoU嘉泰姆	2250YoU嘉泰姆	> 95YoU嘉泰姆	TDFN-6YoU嘉泰姆
CXSD62277YoU嘉泰姆	1.5A,40V,200KHz Step-Down ConverterYoU嘉泰姆	1500YoU嘉泰姆	4.75 ~ 40YoU嘉泰姆	0.92~15YoU嘉泰姆	550YoU嘉泰姆	0.92YoU嘉泰姆	200YoU嘉泰姆	> 95YoU嘉泰姆	SOP-8YoU嘉泰姆
CXSD62278YoU嘉泰姆	2A, Synchronous Step-Down ConverterYoU嘉泰姆	2000YoU嘉泰姆	2.7 ~ 5.5YoU嘉泰姆	0.8~5YoU嘉泰姆	500YoU嘉泰姆	0.8YoU嘉泰姆	1000YoU嘉泰姆	> 96YoU嘉泰姆	SOP-8YoU嘉泰姆
CXSD62279YoU嘉泰姆	2A, 30V, 340KHz SynchronousStep-Down ConverterYoU嘉泰姆	2000YoU嘉泰姆	4.5 ~ 30YoU嘉泰姆	0.923~20YoU嘉泰姆	450YoU嘉泰姆	0.923YoU嘉泰姆	340YoU嘉泰姆	>93YoU嘉泰姆	SOP-8YoU嘉泰姆
CXSD62280YoU嘉泰姆	2A, 30V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	2000YoU嘉泰姆	4.5~30YoU嘉泰姆	0.923~20YoU嘉泰姆	450YoU嘉泰姆	0.923YoU嘉泰姆	340YoU嘉泰姆	>95YoU嘉泰姆	SOP-8YoU嘉泰姆
CXSD62281YoU嘉泰姆	2A, 30V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	2000YoU嘉泰姆	4.5~30YoU嘉泰姆	0.923~20YoU嘉泰姆	450YoU嘉泰姆	0.923YoU嘉泰姆	340YoU嘉泰姆	>95YoU嘉泰姆	SOP-8YoU嘉泰姆
CXSD62282YoU嘉泰姆	3A,30V,500KHz Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4. 5 ~ 30YoU嘉泰姆	0.8~12YoU嘉泰姆	450YoU嘉泰姆	0.8YoU嘉泰姆	500YoU嘉泰姆	> 95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62283YoU嘉泰姆	3A, 28V, 500kHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5 ~ 28YoU嘉泰姆	0.8~24YoU嘉泰姆	1100YoU嘉泰姆	0.8YoU嘉泰姆	500YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62284YoU嘉泰姆	3A, 28V, 500kHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5 ~ 28YoU嘉泰姆	0.8~24YoU嘉泰姆	1100YoU嘉泰姆	0.8YoU嘉泰姆	500YoU嘉泰姆	>95YoU嘉泰姆	SOP-8（EP）</span>YoU嘉泰姆
CXSD62285YoU嘉泰姆	3A, 28V, 1MHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5 ~ 28YoU嘉泰姆	0.8~24YoU嘉泰姆	1100YoU嘉泰姆	0.8YoU嘉泰姆	1000YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP),TDFN-8(EP)YoU嘉泰姆
CXSD62286YoU嘉泰姆	3A,40V,200KHz Step-Down ConverterrYoU嘉泰姆	3000YoU嘉泰姆	4.75 ~ 40YoU嘉泰姆	0.92~15YoU嘉泰姆	550YoU嘉泰姆	0.92YoU嘉泰姆	200YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62287YoU嘉泰姆	3A, 28V, 1MHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5 ~ 28YoU嘉泰姆	0.8~24YoU嘉泰姆	1100YoU嘉泰姆	0.8YoU嘉泰姆	1000YoU嘉泰姆	>95YoU嘉泰姆	SOP-8（EP）</span>YoU嘉泰姆
CXSD62288YoU嘉泰姆	3A, 30V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5 ~ 30YoU嘉泰姆	0.925~12YoU嘉泰姆	450YoU嘉泰姆	0.925YoU嘉泰姆	340YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62289YoU嘉泰姆	3A, 30V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5~30YoU嘉泰姆	0.923~20YoU嘉泰姆	450YoU嘉泰姆	0.925YoU嘉泰姆	340YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62290YoU嘉泰姆	3.2A, Synchronous Step-Down ConverterYoU嘉泰姆	3200YoU嘉泰姆	2.7 ~ 5.5YoU嘉泰姆	0.8~5YoU嘉泰姆	500YoU嘉泰姆	0.8YoU嘉泰姆	1000YoU嘉泰姆	> 96YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62291YoU嘉泰姆	4A, 21V, 500KHz Synchronous Step-Down ConverterYoU嘉泰姆	4000YoU嘉泰姆	4.5 ~ 21YoU嘉泰姆	0.8~15YoU嘉泰姆	900YoU嘉泰姆	0.808YoU嘉泰姆	500YoU嘉泰姆	>95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62292YoU嘉泰姆	5A,30V,500KHz Step-Down ConverterYoU嘉泰姆	5000YoU嘉泰姆	5.5 ~ 30YoU嘉泰姆	1.222~26YoU嘉泰姆	550YoU嘉泰姆	1.222YoU嘉泰姆	500YoU嘉泰姆	> 95YoU嘉泰姆	SOP-8(EP)YoU嘉泰姆
CXSD62293YoU嘉泰姆	6A Synchronous Step-Down ConverterYoU嘉泰姆	6000YoU嘉泰姆	3.3~5.5YoU嘉泰姆	0.6~2YoU嘉泰姆	1000YoU嘉泰姆	0.6~2YoU嘉泰姆	1200YoU嘉泰姆	>93YoU嘉泰姆	TQFN-20YoU嘉泰姆
CXSD62294YoU嘉泰姆	4A, Synchronous Step-Down ConverterYoU嘉泰姆	4000YoU嘉泰姆	2.7~5.5YoU嘉泰姆	0.6-~5YoU嘉泰姆	500YoU嘉泰姆	0.6YoU嘉泰姆	1000YoU嘉泰姆	96YoU嘉泰姆	TDFN-10YoU嘉泰姆
CXSD62295YoU嘉泰姆	2A, 24V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	2000YoU嘉泰姆	4.5~24YoU嘉泰姆	0.92~20YoU嘉泰姆	1000YoU嘉泰姆	0.92YoU嘉泰姆	340YoU嘉泰姆	94YoU嘉泰姆	SOP-8,TSOT23-8YoU嘉泰姆
CXSD62296YoU嘉泰姆	3A, 24V, 340KHz Synchronous Step-Down ConverterYoU嘉泰姆	3000YoU嘉泰姆	4.5~24YoU嘉泰姆	0.92~20YoU嘉泰姆	1000YoU嘉泰姆	0.92YoU嘉泰姆	340YoU嘉泰姆	94YoU嘉泰姆	SOP-8YoU嘉泰姆

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上一篇： 3A, 40V, 200KHz 降压型DC-DC变换器1.5A,40V,200KHz Step-Down Converter CXSD62277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1.5A的负载电流，具有很好的线性调整率和负载调整率。CXSD62277可以在4.75V～40V宽输入电压范围内稳定工作，通过外部分压电阻调节实现0.92～15V的输出电压

下一篇： 2A, 30V, 340KHz 同步降压型DC-DC变换器2A, 30V, 340KHz Synchronous Step-Down Converter CXSD62279是一款同步的采用电流模的降压型DC-DC变换器，可以提供高达2A的负载电流，具有很好的线性和负载调整率。CXSD62279可以在宽输入电压范围4.5V～30V内稳定工作，通过外部电阻调节可容易实现0.923V~12V的输出电

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