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：156

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

目录F5H嘉泰姆

1.产品概述         2.产品特点F5H嘉泰姆
3.应用范围       4.下载产品资料PDF文档 F5H嘉泰姆
5.产品封装图                     6.电路原理图             F5H嘉泰姆
7.功能概述       8.相关产品F5H嘉泰姆

F5H嘉泰姆

一,产品概述(General Description) F5H嘉泰姆

The CXSD61055A is a synchronous step-down DC/DC converter that F5H嘉泰姆

provides wide 4.5V to 21V input voltage range and 2A continuous load current capability.F5H嘉泰姆
The CXSD61055A fault protection includes cycle-by-cycle current limit, F5H嘉泰姆

UVLO, output overvoltage protection and thermal shutdown. The adjustable F5H嘉泰姆

soft-start function prevents inrush current at turn-on. This device uses currentF5H嘉泰姆

mode control scheme which provides fast transient response. Internal compensation function reduces external compensation F5H嘉泰姆

components and simplifies the design process. In shutdown mode, the supplyF5H嘉泰姆

current is less than 1μA.F5H嘉泰姆

The CXSD61055A is available in SOT-23-6 package and provides good thermal conductance.F5H嘉泰姆
二.产品特点(Features)F5H嘉泰姆

High Efficiency up to 94%F5H嘉泰姆
Low RDS(ON) Integrated Power MOSFETF5H嘉泰姆
Internal Compensation FunctionF5H嘉泰姆
Wide Input Voltage Range: 4.5V to 21VF5H嘉泰姆
Adjustable Output Voltage from 0.8V to 17.85VF5H嘉泰姆
2A Output CurrentF5H嘉泰姆
Fixed 600KHz Switching FrequencyF5H嘉泰姆
Current Mode OperationF5H嘉泰姆
Cycle-by-Cycle Current LimitF5H嘉泰姆
Over-Temperature Protection with Auto RecoveryF5H嘉泰姆
Output Overvoltage ProtectionF5H嘉泰姆
Under Voltage LockoutF5H嘉泰姆
<1μA Shutdown CurrentF5H嘉泰姆
SOT-23-6 PackageF5H嘉泰姆
三,应用范围 (Applications)F5H嘉泰姆

STB (Set-Top-Box)F5H嘉泰姆
LCD Display, TVF5H嘉泰姆
Distributed Power SystemF5H嘉泰姆
Networking, XDSL ModemF5H嘉泰姆
四.技术规格书下载（产品PDF）F5H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！F5H嘉泰姆

QQ截图20160419174301.jpg F5H嘉泰姆

五,产品封装图 (Package)F5H嘉泰姆

F5H嘉泰姆

I/OF5H嘉泰姆	Pin NameF5H嘉泰姆	Pin No.F5H嘉泰姆	Pin FunctionF5H嘉泰姆
IF5H嘉泰姆	FBF5H嘉泰姆	3F5H嘉泰姆	Voltage Feedback Input Pin. Connect FB and VOUT with a resistive voltage divider. This ICF5H嘉泰姆 senses feedback voltage via FB and regulates it at 0.8V.F5H嘉泰姆
IF5H嘉泰姆	VINF5H嘉泰姆	5F5H嘉泰姆	Power Supply Input Pin. Drive VIN pin by 4.5V to 21V voltage to power on the chip.F5H嘉泰姆
IF5H嘉泰姆		4F5H嘉泰姆	Enable Input Pin. This pin is a digital control input which turns the converter on or off. Connect toF5H嘉泰姆 VIN with a 100kΩ resistor for self-startup.F5H嘉泰姆
IF5H嘉泰姆	GNDF5H嘉泰姆	2F5H嘉泰姆	Ground Pin.F5H嘉泰姆
OF5H嘉泰姆	LXF5H嘉泰姆	6F5H嘉泰姆	Power Switching Output. LX is the output of the internal high side NMOS switch.F5H嘉泰姆
OF5H嘉泰姆	BSTF5H嘉泰姆	1F5H嘉泰姆	High Side Gate Drive Boost Pin. A capacitor rating between 10nF~100nF must be connected fromF5H嘉泰姆 this pin to LX. It can boost the gate drive to fully turn on the internal high side NMOS.F5H嘉泰姆

六.电路原理图F5H嘉泰姆

F5H嘉泰姆

VOUTF5H嘉泰姆	C1F5H嘉泰姆	R1F5H嘉泰姆	R2F5H嘉泰姆	C9F5H嘉泰姆	C4F5H嘉泰姆	L1F5H嘉泰姆	C2F5H嘉泰姆
1.2VF5H嘉泰姆	10μF MLCC x2F5H嘉泰姆	4.99kΩF5H嘉泰姆	10kΩF5H嘉泰姆	--F5H嘉泰姆	200pF~1nFF5H嘉泰姆	2.2μHF5H嘉泰姆	22μF MLCC x2F5H嘉泰姆
1.8VF5H嘉泰姆	10μF MLCC x2F5H嘉泰姆	4.99kΩF5H嘉泰姆	3.92kΩF5H嘉泰姆	--F5H嘉泰姆	200pF~1nFF5H嘉泰姆	2.2μHF5H嘉泰姆	22μF MLCC x2F5H嘉泰姆
2.5VF5H嘉泰姆	10μF MLCC x2F5H嘉泰姆	4.99kΩF5H嘉泰姆	2.32kΩF5H嘉泰姆	--F5H嘉泰姆	200pF~1nFF5H嘉泰姆	4.7μHF5H嘉泰姆	22μF MLCC x2F5H嘉泰姆
3.3VF5H嘉泰姆	10μF MLCC x2F5H嘉泰姆	30.9kΩF5H嘉泰姆	9.76kΩF5H嘉泰姆	--F5H嘉泰姆	200pF~1nFF5H嘉泰姆	4.7μHF5H嘉泰姆	22μF MLCC x2F5H嘉泰姆
5VF5H嘉泰姆	10μF MLCC x2F5H嘉泰姆	30.9kΩF5H嘉泰姆	5.76kΩF5H嘉泰姆	--F5H嘉泰姆	200pF~1nFF5H嘉泰姆	4.7μHF5H嘉泰姆	22μF MLCC x2F5H嘉泰姆
1.2VF5H嘉泰姆	100μF EC x1F5H嘉泰姆	4.99kΩF5H嘉泰姆	10kΩF5H嘉泰姆	0.1μFF5H嘉泰姆	--F5H嘉泰姆	2.2μHF5H嘉泰姆	100μF EC x1F5H嘉泰姆
1.8VF5H嘉泰姆	100μF EC x1F5H嘉泰姆	4.99kΩF5H嘉泰姆	3.92kΩF5H嘉泰姆	0.1μFF5H嘉泰姆	--F5H嘉泰姆	2.2μHF5H嘉泰姆	100μF EC x1F5H嘉泰姆
2.5VF5H嘉泰姆	100μF EC x1F5H嘉泰姆	4.99kΩF5H嘉泰姆	2.32kΩF5H嘉泰姆	0.1μFF5H嘉泰姆	--F5H嘉泰姆	4.7μHF5H嘉泰姆	100μF EC x1F5H嘉泰姆
3.3VF5H嘉泰姆	100μF EC x1F5H嘉泰姆	30.9kΩF5H嘉泰姆	9.76kΩF5H嘉泰姆	0.1μFF5H嘉泰姆	--F5H嘉泰姆	4.7μHF5H嘉泰姆	100μF EC x1F5H嘉泰姆
5VF5H嘉泰姆	100μF EC x1F5H嘉泰姆	30.9kΩF5H嘉泰姆	5.76kΩF5H嘉泰姆	0.1μFF5H嘉泰姆	--F5H嘉泰姆	4.7μHF5H嘉泰姆	100μF EC x1F5H嘉泰姆

七,功能概述F5H嘉泰姆

Absolute Maximum Ratings (Note 1)F5H嘉泰姆

● Supply Voltage VIN ----------------------------------------------------------------------------- -0.3V to +23VF5H嘉泰姆

● Enable Voltage SH------------------------------------------------------------------------ -0.3V to +23VF5H嘉泰姆

● LX Voltage VLX (50ns) ---------------------------------------------------------------------- -1V to VIN+0.3VF5H嘉泰姆
● BST Pin Voltage VBST ----------------------------------------------------------------------- VLX-0.3V to VLX+6VF5H嘉泰姆
● All Other Pins Voltage -------------------------------------------------------------------------- -0.3V to +6VF5H嘉泰姆
● Maximum Junction Temperature (TJ) ---------------------------------------------------- +150°CF5H嘉泰姆
● Storage Temperature (TS) -------------------------------------------------------------------- -65°C to +150°CF5H嘉泰姆
● Lead Temperature (Soldering, 10sec.) --------------------------------------------------- +260°CF5H嘉泰姆
● Package Thermal Resistance, (θJA) SOT-23-6 ------------------------------------------------ +250°C/WF5H嘉泰姆
● Package Thermal Resistance, (θJC) SOT-23-6 ---------------------------------------------------- +110°C/WF5H嘉泰姆
八,相关芯片选择指南 更多同类产品......F5H嘉泰姆

高压同步DC-DC降压ICF5H嘉泰姆
型号F5H嘉泰姆	输入耐压F5H嘉泰姆	输出电压F5H嘉泰姆	输出电流F5H嘉泰姆	反馈电压F5H嘉泰姆	工作频率F5H嘉泰姆	效率F5H嘉泰姆	静态工F5H嘉泰姆作电流F5H嘉泰姆	待机电流F5H嘉泰姆	封装F5H嘉泰姆
CXSD61049F5H嘉泰姆	8V-35VF5H嘉泰姆	可调输出F5H嘉泰姆带线损补偿F5H嘉泰姆	2A/带可调恒流设置F5H嘉泰姆	1.21VF5H嘉泰姆	130KF5H嘉泰姆	95%F5H嘉泰姆	1.3mAF5H嘉泰姆	112uAF5H嘉泰姆	SOP-8F5H嘉泰姆
CXSD61050F5H嘉泰姆	8V-35VF5H嘉泰姆	可调输出/带线损F5H嘉泰姆补偿带使能端F5H嘉泰姆	2A/带可调恒流设置F5H嘉泰姆	1.21VF5H嘉泰姆	130KF5H嘉泰姆	93%F5H嘉泰姆	1.3mAF5H嘉泰姆		SOP-8F5H嘉泰姆
CXSD61046F5H嘉泰姆	4.5-20VF5H嘉泰姆	可调输出F5H嘉泰姆	2.0AF5H嘉泰姆	0.923VF5H嘉泰姆	340KF5H嘉泰姆	95%F5H嘉泰姆	1mAF5H嘉泰姆	6uAF5H嘉泰姆	SOP-8F5H嘉泰姆
CXSD61046A/BF5H嘉泰姆	4.5-27VF5H嘉泰姆	可调输出F5H嘉泰姆	2.0A/2.5AF5H嘉泰姆	0.925VF5H嘉泰姆	340KF5H嘉泰姆	96%F5H嘉泰姆	1.3mAF5H嘉泰姆	0.3uAF5H嘉泰姆	SOP-8F5H嘉泰姆
CXSD61048F5H嘉泰姆	8V--35VF5H嘉泰姆	可调输出F5H嘉泰姆带线损补偿F5H嘉泰姆	2.0A/带可调限流保护F5H嘉泰姆	1.2VF5H嘉泰姆	100-500KF5H嘉泰姆	93%F5H嘉泰姆	750uAF5H嘉泰姆	110uAF5H嘉泰姆	ESOP-8F5H嘉泰姆
CXSD61048AF5H嘉泰姆	10V--35VF5H嘉泰姆	可调输出F5H嘉泰姆带线损补偿F5H嘉泰姆	2.5A/带可调限流保护F5H嘉泰姆	1.2VF5H嘉泰姆	100-500K可调F5H嘉泰姆	93%F5H嘉泰姆	15mAF5H嘉泰姆	110uAF5H嘉泰姆	SOP-8F5H嘉泰姆
CXSD61048BF5H嘉泰姆	8V-35VF5H嘉泰姆	可调输出F5H嘉泰姆带线损补偿F5H嘉泰姆	2.8A/带可调限流保护F5H嘉泰姆	1.21VF5H嘉泰姆	100-500K可调F5H嘉泰姆	93%F5H嘉泰姆	15mAF5H嘉泰姆	110uAF5H嘉泰姆	SOP-8F5H嘉泰姆
CXSD61048CF5H嘉泰姆	8V-35VF5H嘉泰姆	可调输出F5H嘉泰姆带线损补偿F5H嘉泰姆	3.2A/带可调限流保护F5H嘉泰姆	1.21VF5H嘉泰姆	100-500K可调F5H嘉泰姆	93%F5H嘉泰姆	15mAF5H嘉泰姆	110uAF5H嘉泰姆	SOP-8F5H嘉泰姆
CXSD61047F5H嘉泰姆	4.6-22VF5H嘉泰姆	可调输出F5H嘉泰姆	3.0AF5H嘉泰姆	0.923VF5H嘉泰姆	340KF5H嘉泰姆	95%F5H嘉泰姆	55uAF5H嘉泰姆	1uAF5H嘉泰姆	ESOP8F5H嘉泰姆
CXSD61047AF5H嘉泰姆	4.5-27VF5H嘉泰姆	可调输出F5H嘉泰姆	3.0AF5H嘉泰姆	0.925VF5H嘉泰姆	340KF5H嘉泰姆	93%F5H嘉泰姆	1.3mAF5H嘉泰姆	0.3uAF5H嘉泰姆	ESOP8F5H嘉泰姆
CXSD61047BF5H嘉泰姆	4.5V-23VF5H嘉泰姆	可调输出F5H嘉泰姆	3.5AF5H嘉泰姆	0.925VF5H嘉泰姆	340KF5H嘉泰姆	96%F5H嘉泰姆	2.5mAF5H嘉泰姆		ESOP-8F5H嘉泰姆
CXSD61051F5H嘉泰姆	8V-35VF5H嘉泰姆	可调输出F5H嘉泰姆带线损补偿F5H嘉泰姆	扩流4.5A带F5H嘉泰姆可调限流保护F5H嘉泰姆	1.21VF5H嘉泰姆	100-500K可调F5H嘉泰姆	95%F5H嘉泰姆	14mAF5H嘉泰姆	100uAF5H嘉泰姆	ESOP8F5H嘉泰姆
CXSD61052F5H嘉泰姆	3.6-40VF5H嘉泰姆	可调输出F5H嘉泰姆	2.0AF5H嘉泰姆	0.8VF5H嘉泰姆	440KF5H嘉泰姆	94%F5H嘉泰姆	74uAF5H嘉泰姆	0.07uAF5H嘉泰姆	ESOP-8F5H嘉泰姆
CXSD61053F5H嘉泰姆	4.5-20VF5H嘉泰姆	可调输出F5H嘉泰姆	4.0AF5H嘉泰姆	0.923VF5H嘉泰姆	340KF5H嘉泰姆	95%F5H嘉泰姆	1.6mAF5H嘉泰姆	6uAF5H嘉泰姆	ESOP8F5H嘉泰姆
CXSD61054F5H嘉泰姆	3.5-23VF5H嘉泰姆	可调输出F5H嘉泰姆	2.0AF5H嘉泰姆	0.6VF5H嘉泰姆	600KF5H嘉泰姆	96%F5H嘉泰姆	400uAF5H嘉泰姆	1uAF5H嘉泰姆	SOT-26F5H嘉泰姆
CXSD61055F5H嘉泰姆	4.5-17VF5H嘉泰姆	可调输出F5H嘉泰姆	2.0AF5H嘉泰姆	0.6VF5H嘉泰姆	600KF5H嘉泰姆	96%F5H嘉泰姆	400uAF5H嘉泰姆	1uAF5H嘉泰姆	SOT-26F5H嘉泰姆
CXSD61055AF5H嘉泰姆	4.5V-23VF5H嘉泰姆	可调输出F5H嘉泰姆	2.0AF5H嘉泰姆	0.8VF5H嘉泰姆	600KF5H嘉泰姆	92%F5H嘉泰姆	800uAF5H嘉泰姆		SOT-26F5H嘉泰姆
CXSD61055BF5H嘉泰姆	3.3-17VF5H嘉泰姆	可调输出F5H嘉泰姆	2.0AF5H嘉泰姆	0.6VF5H嘉泰姆	600KF5H嘉泰姆	96%F5H嘉泰姆	400uAF5H嘉泰姆	4uAF5H嘉泰姆	SOT-26F5H嘉泰姆
CXSD61056F5H嘉泰姆	4.5-26VF5H嘉泰姆	可调输出F5H嘉泰姆	1.2AF5H嘉泰姆	0.8VF5H嘉泰姆	1.4MF5H嘉泰姆	94%F5H嘉泰姆	600uAF5H嘉泰姆	1uAF5H嘉泰姆	SOT-26F5H嘉泰姆
CXSD61057F5H嘉泰姆	4.0-42VF5H嘉泰姆	可调输出F5H嘉泰姆	1.5AF5H嘉泰姆	0.8VF5H嘉泰姆	650KF5H嘉泰姆	91%F5H嘉泰姆	600uAF5H嘉泰姆	6uAF5H嘉泰姆	SOT-26F5H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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