3A的负载电流模脉宽调制架构的降压型DC-DC变换器CXSD62265线性调整率和负载调整率4.75V～40V宽输入电压

产品简介

CXSD62265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3A的负载电流，具有很好的线性调整率和负载调整率。CXSD62265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。输出电流阈值通过外部电阻来设定，当输出电流达到设定的阈值时，CXSD62265进入恒流工作模式。输出过压阈值通过外部分压电阻来设定，当输出电压达到设定的阈值时，CXSD62265停止工作。在大负载时，CXSD62265工作在脉冲宽度调制模式。在轻负载时，CXSD62265工作在跳周期模式以提高效率。CXSD62265具有次级周期性的峰值电流限制和过温等保护机制，以确保芯片工作的安全性。芯片在关断模式下的静态电流可低至3μA。具有内部软启动功能可以很好的抑制浪涌电流和输出电压的过冲。CXSD62265以通过少数量的标准外围器件实现变换器功能，有效的节省了应用空间。CXSD62265采用SOP-8(EP)封装，工作温度范围为-40℃到+85℃。The CXSD62265 is current mode, step-down switching regulator capable of driving 3A continuous load with excellent line and load regulation. The CXSD62265 operates with an input voltage range from 4.75V to 40V and the output voltage is externally set from 0.92V to 15V with a resistor divider. The output current threshold is programmed by an external resistor. The CXSD62265 enters into the CC (constant current) mode when output reaches over current threshold. The OV (over voltage) threshold is programmed by an external resistor divider. The CXSD62265stops switching when output reaches over voltage threshold. At heavy load, the ECXSD62265operates at a fixed frequency Pulse-Width Modulation mode. At light load, the CXSD62265operates at a Pulse-Skipping Mode to improve efficiency. Fault condition protection includes secondary cycle-by-cycle current limit and thermal shutdown. In shutdown mode the regulator draws 3μA of supply current. Internal soft-start minimizes the inrush supply current and the output overshoot at initial startup. The CXSD62265require a minimum number of external components.

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●输入电压范围：4.75V至40VwTd嘉泰姆

●输出电压可调：0.92V至15VwTd嘉泰姆

●高达3A的输出电流wTd嘉泰姆

●轻负载自动跳周期模式wTd嘉泰姆

●可编程输出电流阈值wTd嘉泰姆

●可编程输出过压阈值wTd嘉泰姆

●关断电流低至3μAwTd嘉泰姆

●内部集成0.1Ω的DMOS开关管wTd嘉泰姆

●效率高达95%wTd嘉泰姆

●200KHz固定开关频率wTd嘉泰姆

●芯片内部软启动wTd嘉泰姆

●次级周期性的峰值电流限制保护wTd嘉泰姆

●过温保护wTd嘉泰姆

●输入欠压锁定wTd嘉泰姆

●SOP-8封装wTd嘉泰姆

●符合RoHS规范及Pb-FreewTd嘉泰姆

4.75V to 40V Wide Input Operating RangewTd嘉泰姆

Output Adjustable from 0.92V to 15VwTd嘉泰姆

Up to 3A Output CurrentwTd嘉泰姆

Automatic Pulse Skipping Mode at Light LoadwTd嘉泰姆

Programmable Output Current ThresholdwTd嘉泰姆

Programmable Output Over Voltage ThresholdwTd嘉泰姆

3μA Low Shutdown CurrentwTd嘉泰姆

0.1 Internal DMOS Output SwitchwTd嘉泰姆

Up to 95% EfficiencywTd嘉泰姆

Fixed 200kHz Switching FrequencywTd嘉泰姆

Internal Soft StartwTd嘉泰姆

Secondary Cycle-by-Cycle Current LimitwTd嘉泰姆

Thermal ShutdownwTd嘉泰姆

Input Supply Undervoltage LockoutwTd嘉泰姆

Available SOP-8 (EP) PackagewTd嘉泰姆

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

Halogen-FreewTd嘉泰姆

应用范围 返回TOPwTd嘉泰姆

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●车载充电器/适配器wTd嘉泰姆

●可充电便携式设备wTd嘉泰姆

●分布式电源系统wTd嘉泰姆

●为线性稳压器供电wTd嘉泰姆

Car Charger/AdaptorwTd嘉泰姆

Rechargeable Portable DeviceswTd嘉泰姆

Distributive Power SystemswTd嘉泰姆

Pre-regulator for Linear RegulatorswTd嘉泰姆

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DC/DC开关稳压器 > 降压转换器/控制器wTd嘉泰姆
Part wTd嘉泰姆 NumberwTd嘉泰姆	remarkwTd嘉泰姆	Iout wTd嘉泰姆 (mA)wTd嘉泰姆	Vin wTd嘉泰姆 (V)wTd嘉泰姆	Vout wTd嘉泰姆 (V)wTd嘉泰姆	IQ wTd嘉泰姆 (μA)wTd嘉泰姆	FB wTd嘉泰姆 (V)wTd嘉泰姆	Freq. wTd嘉泰姆 (KHz)wTd嘉泰姆	Peak wTd嘉泰姆 Efficency wTd嘉泰姆 (%)wTd嘉泰姆	PackagewTd嘉泰姆
CXSD62255wTd嘉泰姆	6A, 30V, Synchronous Step-Down Converter with Programmable FrequencywTd嘉泰姆	6000wTd嘉泰姆	2.7~30wTd嘉泰姆	0.8~20wTd嘉泰姆	1000wTd嘉泰姆	0.8wTd嘉泰姆	100~1000wTd嘉泰姆	>95wTd嘉泰姆	TQFN-23LwTd嘉泰姆
CXSD62256wTd嘉泰姆	2A, 30V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	2000wTd嘉泰姆	4.5~30wTd嘉泰姆	0.92~20wTd嘉泰姆	1000wTd嘉泰姆	0.92wTd嘉泰姆	340wTd嘉泰姆	>94wTd嘉泰姆	SOP-8wTd嘉泰姆
CXSD62257wTd嘉泰姆	3A, 30V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5~30wTd嘉泰姆	0.92~20wTd嘉泰姆	1000wTd嘉泰姆	0.92wTd嘉泰姆	340wTd嘉泰姆	>94wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62258wTd嘉泰姆	CC/CV Mode Synchronous Step-Down ConverterwTd嘉泰姆	4000wTd嘉泰姆	8~36wTd嘉泰姆	0.6~12wTd嘉泰姆	1000wTd嘉泰姆	0.6wTd嘉泰姆	80~800wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62259wTd嘉泰姆	Dual-Channel CC/CV Mode Synchronous Step-Down ControllerwTd嘉泰姆	5000wTd嘉泰姆	8~36wTd嘉泰姆	0.6~12wTd嘉泰姆	1000wTd嘉泰姆	0.6wTd嘉泰姆	150wTd嘉泰姆	>95wTd嘉泰姆	MSOP-10wTd嘉泰姆
CXSD62260wTd嘉泰姆	CC/CV Mode Synchronous Step-Down ConverterwTd嘉泰姆	4000wTd嘉泰姆	4.5~36wTd嘉泰姆	0.6~20wTd嘉泰姆	1000wTd嘉泰姆	0.6wTd嘉泰姆	80~800wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62261wTd嘉泰姆	CC/CV Mode Synchronous Step-Down ConverterwTd嘉泰姆	4000wTd嘉泰姆	4.5~30wTd嘉泰姆	0.6~12wTd嘉泰姆	1000wTd嘉泰姆	0.6wTd嘉泰姆	80~800wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62262wTd嘉泰姆	Dual-Channel CC/CV Mode Synchronous Step-Down ConverterwTd嘉泰姆	5000wTd嘉泰姆	8~36wTd嘉泰姆	0.6~12wTd嘉泰姆	1000wTd嘉泰姆	0.6wTd嘉泰姆	80~800wTd嘉泰姆	95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62263wTd嘉泰姆	5A, CC/CV Mode Step-Down ConverterwTd嘉泰姆	5000wTd嘉泰姆	8~36wTd嘉泰姆	1.18~12wTd嘉泰姆	500wTd嘉泰姆	1.18wTd嘉泰姆	120wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62264wTd嘉泰姆	CC/CV Mode Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	8~36wTd嘉泰姆	1.18~12wTd嘉泰姆	500wTd嘉泰姆	1.18wTd嘉泰姆	120wTd嘉泰姆	>95wTd嘉泰姆	SOP-8wTd嘉泰姆
CXSD62265wTd嘉泰姆	3A,40V,200KHz Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.75~40wTd嘉泰姆	0.92~15wTd嘉泰姆	550wTd嘉泰姆	0.92wTd嘉泰姆	200wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62266wTd嘉泰姆	1.5MHz, 800mA Synchronous Step-Down Converter with Soft StartwTd嘉泰姆	800wTd嘉泰姆	2.5 ~ 5.5wTd嘉泰姆	0.6~VinwTd嘉泰姆	270wTd嘉泰姆	0.6wTd嘉泰姆	1500wTd嘉泰姆	> 96wTd嘉泰姆	TSOT23-5,SOT23-5wTd嘉泰姆
CXSD62267wTd嘉泰姆	3A, Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	2.7~5.5wTd嘉泰姆	0.6~5wTd嘉泰姆	500wTd嘉泰姆	0.6wTd嘉泰姆	1000wTd嘉泰姆	>96wTd嘉泰姆	TDFN-10,SOP-8(EP)wTd嘉泰姆
CXSD62268wTd嘉泰姆	1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorwTd嘉泰姆	1000wTd嘉泰姆	2.7~5.5wTd嘉泰姆	0.6~3.3wTd嘉泰姆	30wTd嘉泰姆	0.6wTd嘉泰姆	2250wTd嘉泰姆	>94wTd嘉泰姆	TDFN-6wTd嘉泰姆
CXSD62269wTd嘉泰姆	1.5MHz,1A Synchronous Step-Down Converter with Soft StartwTd嘉泰姆	1000wTd嘉泰姆	2.5 ~ 5.5wTd嘉泰姆	0.6~5wTd嘉泰姆	270wTd嘉泰姆	0.6wTd嘉泰姆	1500wTd嘉泰姆	> 96wTd嘉泰姆	TDFN-6,SOT23-5,TSOT23-5wTd嘉泰姆
CXSD62270wTd嘉泰姆	5A, 3MHz Synchronous Step-Down DC-DC with I2C Compatible InterfacewTd嘉泰姆	5000wTd嘉泰姆	2.7~5.5wTd嘉泰姆	0.6~1.4wTd嘉泰姆	52wTd嘉泰姆	-wTd嘉泰姆	3000wTd嘉泰姆	-wTd嘉泰姆	WCSP-20wTd嘉泰姆
CXSD62271wTd嘉泰姆	1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorwTd嘉泰姆	1000wTd嘉泰姆	2.7 ~ 5.5wTd嘉泰姆	0.6~VinwTd嘉泰姆	30wTd嘉泰姆	0.6wTd嘉泰姆	2250wTd嘉泰姆	> 95wTd嘉泰姆	TDFN-6,TSOT23-5wTd嘉泰姆
CXSD62272wTd嘉泰姆	Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC ConverterwTd嘉泰姆	1000 /1000wTd嘉泰姆	2.5 ~ 5.5wTd嘉泰姆	0.6~5wTd嘉泰姆	270wTd嘉泰姆	0.6wTd嘉泰姆	1500wTd嘉泰姆	> 96wTd嘉泰姆	TDFN-12wTd嘉泰姆
CXSD62273wTd嘉泰姆	Dual 1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorwTd嘉泰姆	1000/1000wTd嘉泰姆	2.7 ~ 5.5wTd嘉泰姆	0.6~VinwTd嘉泰姆	45wTd嘉泰姆	0.6wTd嘉泰姆	2250wTd嘉泰姆	> 95wTd嘉泰姆	TDFN-10wTd嘉泰姆
CXSD62274wTd嘉泰姆	Dual 1A, 2.25MHz Synchronous Step-Down DC/DC RegulatorwTd嘉泰姆	1000/1000wTd嘉泰姆	2.7 ~ 5.5wTd嘉泰姆	0.6~VinwTd嘉泰姆	30wTd嘉泰姆	0.6wTd嘉泰姆	2250wTd嘉泰姆	> 95wTd嘉泰姆	TDFN-12wTd嘉泰姆
CXSD62275wTd嘉泰姆	1.2A,30V,1.2MHz Step-Down ConverterwTd嘉泰姆	1200wTd嘉泰姆	4.5 ~ 30wTd嘉泰姆	0.8~15wTd嘉泰姆	550wTd嘉泰姆	0.8wTd嘉泰姆	1200wTd嘉泰姆	> 92wTd嘉泰姆	SOT23-6wTd嘉泰姆
CXSD62276wTd嘉泰姆	1.5A, 2.25MHz Synchronous Step-Down DC/DC RegulatorwTd嘉泰姆	1500wTd嘉泰姆	2.7 ~ 5.5wTd嘉泰姆	0.6~VinwTd嘉泰姆	30wTd嘉泰姆	0.6wTd嘉泰姆	2250wTd嘉泰姆	> 95wTd嘉泰姆	TDFN-6wTd嘉泰姆
CXSD62277wTd嘉泰姆	1.5A,40V,200KHz Step-Down ConverterwTd嘉泰姆	1500wTd嘉泰姆	4.75 ~ 40wTd嘉泰姆	0.92~15wTd嘉泰姆	550wTd嘉泰姆	0.92wTd嘉泰姆	200wTd嘉泰姆	> 95wTd嘉泰姆	SOP-8wTd嘉泰姆
CXSD62278wTd嘉泰姆	2A, Synchronous Step-Down ConverterwTd嘉泰姆	2000wTd嘉泰姆	2.7 ~ 5.5wTd嘉泰姆	0.8~5wTd嘉泰姆	500wTd嘉泰姆	0.8wTd嘉泰姆	1000wTd嘉泰姆	> 96wTd嘉泰姆	SOP-8wTd嘉泰姆
CXSD62279wTd嘉泰姆	2A, 30V, 340KHz SynchronousStep-Down ConverterwTd嘉泰姆	2000wTd嘉泰姆	4.5 ~ 30wTd嘉泰姆	0.923~20wTd嘉泰姆	450wTd嘉泰姆	0.923wTd嘉泰姆	340wTd嘉泰姆	>93wTd嘉泰姆	SOP-8wTd嘉泰姆
CXSD62280wTd嘉泰姆	2A, 30V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	2000wTd嘉泰姆	4.5~30wTd嘉泰姆	0.923~20wTd嘉泰姆	450wTd嘉泰姆	0.923wTd嘉泰姆	340wTd嘉泰姆	>95wTd嘉泰姆	SOP-8wTd嘉泰姆
CXSD62281wTd嘉泰姆	2A, 30V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	2000wTd嘉泰姆	4.5~30wTd嘉泰姆	0.923~20wTd嘉泰姆	450wTd嘉泰姆	0.923wTd嘉泰姆	340wTd嘉泰姆	>95wTd嘉泰姆	SOP-8wTd嘉泰姆
CXSD62282wTd嘉泰姆	3A,30V,500KHz Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4. 5 ~ 30wTd嘉泰姆	0.8~12wTd嘉泰姆	450wTd嘉泰姆	0.8wTd嘉泰姆	500wTd嘉泰姆	> 95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62283wTd嘉泰姆	3A, 28V, 500kHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5 ~ 28wTd嘉泰姆	0.8~24wTd嘉泰姆	1100wTd嘉泰姆	0.8wTd嘉泰姆	500wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62284wTd嘉泰姆	3A, 28V, 500kHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5 ~ 28wTd嘉泰姆	0.8~24wTd嘉泰姆	1100wTd嘉泰姆	0.8wTd嘉泰姆	500wTd嘉泰姆	>95wTd嘉泰姆	SOP-8（EP）wTd嘉泰姆
CXSD62285wTd嘉泰姆	3A, 28V, 1MHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5 ~ 28wTd嘉泰姆	0.8~24wTd嘉泰姆	1100wTd嘉泰姆	0.8wTd嘉泰姆	1000wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP),TDFN-8(EP)wTd嘉泰姆
CXSD62286wTd嘉泰姆	3A,40V,200KHz Step-Down ConverterrwTd嘉泰姆	3000wTd嘉泰姆	4.75 ~ 40wTd嘉泰姆	0.92~15wTd嘉泰姆	550wTd嘉泰姆	0.92wTd嘉泰姆	200wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62287wTd嘉泰姆	3A, 28V, 1MHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5 ~ 28wTd嘉泰姆	0.8~24wTd嘉泰姆	1100wTd嘉泰姆	0.8wTd嘉泰姆	1000wTd嘉泰姆	>95wTd嘉泰姆	SOP-8（EP）wTd嘉泰姆
CXSD62288wTd嘉泰姆	3A, 30V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5 ~ 30wTd嘉泰姆	0.925~12wTd嘉泰姆	450wTd嘉泰姆	0.925wTd嘉泰姆	340wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62289wTd嘉泰姆	3A, 30V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5~30wTd嘉泰姆	0.923~20wTd嘉泰姆	450wTd嘉泰姆	0.925wTd嘉泰姆	340wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62290wTd嘉泰姆	3.2A, Synchronous Step-Down ConverterwTd嘉泰姆	3200wTd嘉泰姆	2.7 ~ 5.5wTd嘉泰姆	0.8~5wTd嘉泰姆	500wTd嘉泰姆	0.8wTd嘉泰姆	1000wTd嘉泰姆	> 96wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62291wTd嘉泰姆	4A, 21V, 500KHz Synchronous Step-Down ConverterwTd嘉泰姆	4000wTd嘉泰姆	4.5 ~ 21wTd嘉泰姆	0.8~15wTd嘉泰姆	900wTd嘉泰姆	0.808wTd嘉泰姆	500wTd嘉泰姆	>95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62292wTd嘉泰姆	5A,30V,500KHz Step-Down ConverterwTd嘉泰姆	5000wTd嘉泰姆	5.5 ~ 30wTd嘉泰姆	1.222~26wTd嘉泰姆	550wTd嘉泰姆	1.222wTd嘉泰姆	500wTd嘉泰姆	> 95wTd嘉泰姆	SOP-8(EP)wTd嘉泰姆
CXSD62293wTd嘉泰姆	6A Synchronous Step-Down ConverterwTd嘉泰姆	6000wTd嘉泰姆	3.3~5.5wTd嘉泰姆	0.6~2wTd嘉泰姆	1000wTd嘉泰姆	0.6~2wTd嘉泰姆	1200wTd嘉泰姆	>93wTd嘉泰姆	TQFN-20wTd嘉泰姆
CXSD62294wTd嘉泰姆	4A, Synchronous Step-Down ConverterwTd嘉泰姆	4000wTd嘉泰姆	2.7~5.5wTd嘉泰姆	0.6-~5wTd嘉泰姆	500wTd嘉泰姆	0.6wTd嘉泰姆	1000wTd嘉泰姆	96wTd嘉泰姆	TDFN-10wTd嘉泰姆
CXSD62295wTd嘉泰姆	2A, 24V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	2000wTd嘉泰姆	4.5~24wTd嘉泰姆	0.92~20wTd嘉泰姆	1000wTd嘉泰姆	0.92wTd嘉泰姆	340wTd嘉泰姆	94wTd嘉泰姆	SOP-8,TSOT23-8wTd嘉泰姆
CXSD62296wTd嘉泰姆	3A, 24V, 340KHz Synchronous Step-Down ConverterwTd嘉泰姆	3000wTd嘉泰姆	4.5~24wTd嘉泰姆	0.92~20wTd嘉泰姆	1000wTd嘉泰姆	0.92wTd嘉泰姆	340wTd嘉泰姆	94wTd嘉泰姆	SOP-8wTd嘉泰姆

CXSD62265

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CXSD62265

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