CXSD61055A step-down DC/DC converter wide 4.5V to 21V input voltage range 2A continuous load current capability

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发表时间：2020-04-10浏览次数：110

CXSD61055A step-down DC/DC converter wide 4.5V to 21V input voltage range 2A continuous load current capability

目录PYI嘉泰姆

1.产品概述         2.产品特点PYI嘉泰姆
3.应用范围       4.下载产品资料PDF文档 PYI嘉泰姆
5.产品封装图                     6.电路原理图             PYI嘉泰姆
7.功能概述       8.相关产品PYI嘉泰姆

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一,产品概述(General Description) PYI嘉泰姆

The CXSD61055A is a synchronous step-down DC/DC converter that PYI嘉泰姆

provides wide 4.5V to 21V input voltage range and 2A continuous load current capability.PYI嘉泰姆
The CXSD61055A fault protection includes cycle-by-cycle current limit, PYI嘉泰姆

UVLO, output overvoltage protection and thermal shutdown. The adjustable PYI嘉泰姆

soft-start function prevents inrush current at turn-on. This device uses currentPYI嘉泰姆

mode control scheme which provides fast transient response. Internal compensation function reduces external compensation PYI嘉泰姆

components and simplifies the design process. In shutdown mode, the supplyPYI嘉泰姆

current is less than 1μA.PYI嘉泰姆

The CXSD61055A is available in SOT-23-6 package and provides good thermal conductance.PYI嘉泰姆
二.产品特点(Features)PYI嘉泰姆

High Efficiency up to 94%PYI嘉泰姆
Low RDS(ON) Integrated Power MOSFETPYI嘉泰姆
Internal Compensation FunctionPYI嘉泰姆
Wide Input Voltage Range: 4.5V to 21VPYI嘉泰姆
Adjustable Output Voltage from 0.8V to 17.85VPYI嘉泰姆
2A Output CurrentPYI嘉泰姆
Fixed 600KHz Switching FrequencyPYI嘉泰姆
Current Mode OperationPYI嘉泰姆
Cycle-by-Cycle Current LimitPYI嘉泰姆
Over-Temperature Protection with Auto RecoveryPYI嘉泰姆
Output Overvoltage ProtectionPYI嘉泰姆
Under Voltage LockoutPYI嘉泰姆
<1μA Shutdown CurrentPYI嘉泰姆
SOT-23-6 PackagePYI嘉泰姆
三,应用范围 (Applications)PYI嘉泰姆

STB (Set-Top-Box)PYI嘉泰姆
LCD Display, TVPYI嘉泰姆
Distributed Power SystemPYI嘉泰姆
Networking, XDSL ModemPYI嘉泰姆
四.技术规格书下载（产品PDF）PYI嘉泰姆

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！PYI嘉泰姆

QQ截图20160419174301.jpg PYI嘉泰姆

五,产品封装图 (Package)PYI嘉泰姆

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I/OPYI嘉泰姆	Pin NamePYI嘉泰姆	Pin No.PYI嘉泰姆	Pin FunctionPYI嘉泰姆
IPYI嘉泰姆	FBPYI嘉泰姆	3PYI嘉泰姆	Voltage Feedback Input Pin. Connect FB and VOUT with a resistive voltage divider. This ICPYI嘉泰姆 senses feedback voltage via FB and regulates it at 0.8V.PYI嘉泰姆
IPYI嘉泰姆	VINPYI嘉泰姆	5PYI嘉泰姆	Power Supply Input Pin. Drive VIN pin by 4.5V to 21V voltage to power on the chip.PYI嘉泰姆
IPYI嘉泰姆		4PYI嘉泰姆	Enable Input Pin. This pin is a digital control input which turns the converter on or off. Connect toPYI嘉泰姆 VIN with a 100kΩ resistor for self-startup.PYI嘉泰姆
IPYI嘉泰姆	GNDPYI嘉泰姆	2PYI嘉泰姆	Ground Pin.PYI嘉泰姆
OPYI嘉泰姆	LXPYI嘉泰姆	6PYI嘉泰姆	Power Switching Output. LX is the output of the internal high side NMOS switch.PYI嘉泰姆
OPYI嘉泰姆	BSTPYI嘉泰姆	1PYI嘉泰姆	High Side Gate Drive Boost Pin. A capacitor rating between 10nF~100nF must be connected fromPYI嘉泰姆 this pin to LX. It can boost the gate drive to fully turn on the internal high side NMOS.PYI嘉泰姆

六.电路原理图PYI嘉泰姆

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VOUTPYI嘉泰姆	C1PYI嘉泰姆	R1PYI嘉泰姆	R2PYI嘉泰姆	C9PYI嘉泰姆	C4PYI嘉泰姆	L1PYI嘉泰姆	C2PYI嘉泰姆
1.2VPYI嘉泰姆	10μF MLCC x2PYI嘉泰姆	4.99kΩPYI嘉泰姆	10kΩPYI嘉泰姆	--PYI嘉泰姆	200pF~1nFPYI嘉泰姆	2.2μHPYI嘉泰姆	22μF MLCC x2PYI嘉泰姆
1.8VPYI嘉泰姆	10μF MLCC x2PYI嘉泰姆	4.99kΩPYI嘉泰姆	3.92kΩPYI嘉泰姆	--PYI嘉泰姆	200pF~1nFPYI嘉泰姆	2.2μHPYI嘉泰姆	22μF MLCC x2PYI嘉泰姆
2.5VPYI嘉泰姆	10μF MLCC x2PYI嘉泰姆	4.99kΩPYI嘉泰姆	2.32kΩPYI嘉泰姆	--PYI嘉泰姆	200pF~1nFPYI嘉泰姆	4.7μHPYI嘉泰姆	22μF MLCC x2PYI嘉泰姆
3.3VPYI嘉泰姆	10μF MLCC x2PYI嘉泰姆	30.9kΩPYI嘉泰姆	9.76kΩPYI嘉泰姆	--PYI嘉泰姆	200pF~1nFPYI嘉泰姆	4.7μHPYI嘉泰姆	22μF MLCC x2PYI嘉泰姆
5VPYI嘉泰姆	10μF MLCC x2PYI嘉泰姆	30.9kΩPYI嘉泰姆	5.76kΩPYI嘉泰姆	--PYI嘉泰姆	200pF~1nFPYI嘉泰姆	4.7μHPYI嘉泰姆	22μF MLCC x2PYI嘉泰姆
1.2VPYI嘉泰姆	100μF EC x1PYI嘉泰姆	4.99kΩPYI嘉泰姆	10kΩPYI嘉泰姆	0.1μFPYI嘉泰姆	--PYI嘉泰姆	2.2μHPYI嘉泰姆	100μF EC x1PYI嘉泰姆
1.8VPYI嘉泰姆	100μF EC x1PYI嘉泰姆	4.99kΩPYI嘉泰姆	3.92kΩPYI嘉泰姆	0.1μFPYI嘉泰姆	--PYI嘉泰姆	2.2μHPYI嘉泰姆	100μF EC x1PYI嘉泰姆
2.5VPYI嘉泰姆	100μF EC x1PYI嘉泰姆	4.99kΩPYI嘉泰姆	2.32kΩPYI嘉泰姆	0.1μFPYI嘉泰姆	--PYI嘉泰姆	4.7μHPYI嘉泰姆	100μF EC x1PYI嘉泰姆
3.3VPYI嘉泰姆	100μF EC x1PYI嘉泰姆	30.9kΩPYI嘉泰姆	9.76kΩPYI嘉泰姆	0.1μFPYI嘉泰姆	--PYI嘉泰姆	4.7μHPYI嘉泰姆	100μF EC x1PYI嘉泰姆
5VPYI嘉泰姆	100μF EC x1PYI嘉泰姆	30.9kΩPYI嘉泰姆	5.76kΩPYI嘉泰姆	0.1μFPYI嘉泰姆	--PYI嘉泰姆	4.7μHPYI嘉泰姆	100μF EC x1PYI嘉泰姆

七,功能概述PYI嘉泰姆

Absolute Maximum Ratings (Note 1)PYI嘉泰姆

● Supply Voltage VIN ----------------------------------------------------------------------------- -0.3V to +23VPYI嘉泰姆

● Enable Voltage SH------------------------------------------------------------------------ -0.3V to +23VPYI嘉泰姆

● LX Voltage VLX (50ns) ---------------------------------------------------------------------- -1V to VIN+0.3VPYI嘉泰姆
● BST Pin Voltage VBST ----------------------------------------------------------------------- VLX-0.3V to VLX+6VPYI嘉泰姆
● All Other Pins Voltage -------------------------------------------------------------------------- -0.3V to +6VPYI嘉泰姆
● Maximum Junction Temperature (TJ) ---------------------------------------------------- +150°CPYI嘉泰姆
● Storage Temperature (TS) -------------------------------------------------------------------- -65°C to +150°CPYI嘉泰姆
● Lead Temperature (Soldering, 10sec.) --------------------------------------------------- +260°CPYI嘉泰姆
● Package Thermal Resistance, (θJA) SOT-23-6 ------------------------------------------------ +250°C/WPYI嘉泰姆
● Package Thermal Resistance, (θJC) SOT-23-6 ---------------------------------------------------- +110°C/WPYI嘉泰姆
八,相关芯片选择指南 更多同类产品......PYI嘉泰姆

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型号PYI嘉泰姆	输入耐压PYI嘉泰姆	输出电压PYI嘉泰姆	输出电流PYI嘉泰姆	反馈电压PYI嘉泰姆	工作频率PYI嘉泰姆	效率PYI嘉泰姆	静态工PYI嘉泰姆作电流PYI嘉泰姆	待机电流PYI嘉泰姆	封装PYI嘉泰姆
CXSD61049PYI嘉泰姆	8V-35VPYI嘉泰姆	可调输出PYI嘉泰姆带线损补偿PYI嘉泰姆	2A/带可调恒流设置PYI嘉泰姆	1.21VPYI嘉泰姆	130KPYI嘉泰姆	95%PYI嘉泰姆	1.3mAPYI嘉泰姆	112uAPYI嘉泰姆	SOP-8PYI嘉泰姆
CXSD61050PYI嘉泰姆	8V-35VPYI嘉泰姆	可调输出/带线损PYI嘉泰姆补偿带使能端PYI嘉泰姆	2A/带可调恒流设置PYI嘉泰姆	1.21VPYI嘉泰姆	130KPYI嘉泰姆	93%PYI嘉泰姆	1.3mAPYI嘉泰姆		SOP-8PYI嘉泰姆
CXSD61046PYI嘉泰姆	4.5-20VPYI嘉泰姆	可调输出PYI嘉泰姆	2.0APYI嘉泰姆	0.923VPYI嘉泰姆	340KPYI嘉泰姆	95%PYI嘉泰姆	1mAPYI嘉泰姆	6uAPYI嘉泰姆	SOP-8PYI嘉泰姆
CXSD61046A/BPYI嘉泰姆	4.5-27VPYI嘉泰姆	可调输出PYI嘉泰姆	2.0A/2.5APYI嘉泰姆	0.925VPYI嘉泰姆	340KPYI嘉泰姆	96%PYI嘉泰姆	1.3mAPYI嘉泰姆	0.3uAPYI嘉泰姆	SOP-8PYI嘉泰姆
CXSD61048PYI嘉泰姆	8V--35VPYI嘉泰姆	可调输出PYI嘉泰姆带线损补偿PYI嘉泰姆	2.0A/带可调限流保护PYI嘉泰姆	1.2VPYI嘉泰姆	100-500KPYI嘉泰姆	93%PYI嘉泰姆	750uAPYI嘉泰姆	110uAPYI嘉泰姆	ESOP-8PYI嘉泰姆
CXSD61048APYI嘉泰姆	10V--35VPYI嘉泰姆	可调输出PYI嘉泰姆带线损补偿PYI嘉泰姆	2.5A/带可调限流保护PYI嘉泰姆	1.2VPYI嘉泰姆	100-500K可调PYI嘉泰姆	93%PYI嘉泰姆	15mAPYI嘉泰姆	110uAPYI嘉泰姆	SOP-8PYI嘉泰姆
CXSD61048BPYI嘉泰姆	8V-35VPYI嘉泰姆	可调输出PYI嘉泰姆带线损补偿PYI嘉泰姆	2.8A/带可调限流保护PYI嘉泰姆	1.21VPYI嘉泰姆	100-500K可调PYI嘉泰姆	93%PYI嘉泰姆	15mAPYI嘉泰姆	110uAPYI嘉泰姆	SOP-8PYI嘉泰姆
CXSD61048CPYI嘉泰姆	8V-35VPYI嘉泰姆	可调输出PYI嘉泰姆带线损补偿PYI嘉泰姆	3.2A/带可调限流保护PYI嘉泰姆	1.21VPYI嘉泰姆	100-500K可调PYI嘉泰姆	93%PYI嘉泰姆	15mAPYI嘉泰姆	110uAPYI嘉泰姆	SOP-8PYI嘉泰姆
CXSD61047PYI嘉泰姆	4.6-22VPYI嘉泰姆	可调输出PYI嘉泰姆	3.0APYI嘉泰姆	0.923VPYI嘉泰姆	340KPYI嘉泰姆	95%PYI嘉泰姆	55uAPYI嘉泰姆	1uAPYI嘉泰姆	ESOP8PYI嘉泰姆
CXSD61047APYI嘉泰姆	4.5-27VPYI嘉泰姆	可调输出PYI嘉泰姆	3.0APYI嘉泰姆	0.925VPYI嘉泰姆	340KPYI嘉泰姆	93%PYI嘉泰姆	1.3mAPYI嘉泰姆	0.3uAPYI嘉泰姆	ESOP8PYI嘉泰姆
CXSD61047BPYI嘉泰姆	4.5V-23VPYI嘉泰姆	可调输出PYI嘉泰姆	3.5APYI嘉泰姆	0.925VPYI嘉泰姆	340KPYI嘉泰姆	96%PYI嘉泰姆	2.5mAPYI嘉泰姆		ESOP-8PYI嘉泰姆
CXSD61051PYI嘉泰姆	8V-35VPYI嘉泰姆	可调输出PYI嘉泰姆带线损补偿PYI嘉泰姆	扩流4.5A带PYI嘉泰姆可调限流保护PYI嘉泰姆	1.21VPYI嘉泰姆	100-500K可调PYI嘉泰姆	95%PYI嘉泰姆	14mAPYI嘉泰姆	100uAPYI嘉泰姆	ESOP8PYI嘉泰姆
CXSD61052PYI嘉泰姆	3.6-40VPYI嘉泰姆	可调输出PYI嘉泰姆	2.0APYI嘉泰姆	0.8VPYI嘉泰姆	440KPYI嘉泰姆	94%PYI嘉泰姆	74uAPYI嘉泰姆	0.07uAPYI嘉泰姆	ESOP-8PYI嘉泰姆
CXSD61053PYI嘉泰姆	4.5-20VPYI嘉泰姆	可调输出PYI嘉泰姆	4.0APYI嘉泰姆	0.923VPYI嘉泰姆	340KPYI嘉泰姆	95%PYI嘉泰姆	1.6mAPYI嘉泰姆	6uAPYI嘉泰姆	ESOP8PYI嘉泰姆
CXSD61054PYI嘉泰姆	3.5-23VPYI嘉泰姆	可调输出PYI嘉泰姆	2.0APYI嘉泰姆	0.6VPYI嘉泰姆	600KPYI嘉泰姆	96%PYI嘉泰姆	400uAPYI嘉泰姆	1uAPYI嘉泰姆	SOT-26PYI嘉泰姆
CXSD61055PYI嘉泰姆	4.5-17VPYI嘉泰姆	可调输出PYI嘉泰姆	2.0APYI嘉泰姆	0.6VPYI嘉泰姆	600KPYI嘉泰姆	96%PYI嘉泰姆	400uAPYI嘉泰姆	1uAPYI嘉泰姆	SOT-26PYI嘉泰姆
CXSD61055APYI嘉泰姆	4.5V-23VPYI嘉泰姆	可调输出PYI嘉泰姆	2.0APYI嘉泰姆	0.8VPYI嘉泰姆	600KPYI嘉泰姆	92%PYI嘉泰姆	800uAPYI嘉泰姆		SOT-26PYI嘉泰姆
CXSD61055BPYI嘉泰姆	3.3-17VPYI嘉泰姆	可调输出PYI嘉泰姆	2.0APYI嘉泰姆	0.6VPYI嘉泰姆	600KPYI嘉泰姆	96%PYI嘉泰姆	400uAPYI嘉泰姆	4uAPYI嘉泰姆	SOT-26PYI嘉泰姆
CXSD61056PYI嘉泰姆	4.5-26VPYI嘉泰姆	可调输出PYI嘉泰姆	1.2APYI嘉泰姆	0.8VPYI嘉泰姆	1.4MPYI嘉泰姆	94%PYI嘉泰姆	600uAPYI嘉泰姆	1uAPYI嘉泰姆	SOT-26PYI嘉泰姆
CXSD61057PYI嘉泰姆	4.0-42VPYI嘉泰姆	可调输出PYI嘉泰姆	1.5APYI嘉泰姆	0.8VPYI嘉泰姆	650KPYI嘉泰姆	91%PYI嘉泰姆	600uAPYI嘉泰姆	6uAPYI嘉泰姆	SOT-26PYI嘉泰姆

上一篇： CXSD61055 4.5V to 16V Input Voltage Range Integrated internal compensation 2A Output Current Over Current Protection with Hiccup-Mode

下一篇：CXSD61055B high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs Wide 3.3V to 16V Operating input Range

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