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

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发表时间：2020-04-09浏览次数：193

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

目录GdH嘉泰姆

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

GdH嘉泰姆

一,产品概述(General Description) GdH嘉泰姆

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

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

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

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

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

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

current is less than 1μA.GdH嘉泰姆

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

High Efficiency up to 94%GdH嘉泰姆
Low RDS(ON) Integrated Power MOSFETGdH嘉泰姆
Internal Compensation FunctionGdH嘉泰姆
Wide Input Voltage Range: 4.5V to 21VGdH嘉泰姆
Adjustable Output Voltage from 0.8V to 17.85VGdH嘉泰姆
2A Output CurrentGdH嘉泰姆
Fixed 600KHz Switching FrequencyGdH嘉泰姆
Current Mode OperationGdH嘉泰姆
Cycle-by-Cycle Current LimitGdH嘉泰姆
Over-Temperature Protection with Auto RecoveryGdH嘉泰姆
Output Overvoltage ProtectionGdH嘉泰姆
Under Voltage LockoutGdH嘉泰姆
<1μA Shutdown CurrentGdH嘉泰姆
SOT-23-6 PackageGdH嘉泰姆
三,应用范围 (Applications)GdH嘉泰姆

STB (Set-Top-Box)GdH嘉泰姆
LCD Display, TVGdH嘉泰姆
Distributed Power SystemGdH嘉泰姆
Networking, XDSL ModemGdH嘉泰姆
四.技术规格书下载（产品PDF）GdH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！GdH嘉泰姆

QQ截图20160419174301.jpg GdH嘉泰姆

五,产品封装图 (Package)GdH嘉泰姆

GdH嘉泰姆

I/OGdH嘉泰姆	Pin NameGdH嘉泰姆	Pin No.GdH嘉泰姆	Pin FunctionGdH嘉泰姆
IGdH嘉泰姆	FBGdH嘉泰姆	3GdH嘉泰姆	Voltage Feedback Input Pin. Connect FB and VOUT with a resistive voltage divider. This ICGdH嘉泰姆 senses feedback voltage via FB and regulates it at 0.8V.GdH嘉泰姆
IGdH嘉泰姆	VINGdH嘉泰姆	5GdH嘉泰姆	Power Supply Input Pin. Drive VIN pin by 4.5V to 21V voltage to power on the chip.GdH嘉泰姆
IGdH嘉泰姆		4GdH嘉泰姆	Enable Input Pin. This pin is a digital control input which turns the converter on or off. Connect toGdH嘉泰姆 VIN with a 100kΩ resistor for self-startup.GdH嘉泰姆
IGdH嘉泰姆	GNDGdH嘉泰姆	2GdH嘉泰姆	Ground Pin.GdH嘉泰姆
OGdH嘉泰姆	LXGdH嘉泰姆	6GdH嘉泰姆	Power Switching Output. LX is the output of the internal high side NMOS switch.GdH嘉泰姆
OGdH嘉泰姆	BSTGdH嘉泰姆	1GdH嘉泰姆	High Side Gate Drive Boost Pin. A capacitor rating between 10nF~100nF must be connected fromGdH嘉泰姆 this pin to LX. It can boost the gate drive to fully turn on the internal high side NMOS.GdH嘉泰姆

六.电路原理图GdH嘉泰姆

GdH嘉泰姆

VOUTGdH嘉泰姆	C1GdH嘉泰姆	R1GdH嘉泰姆	R2GdH嘉泰姆	C9GdH嘉泰姆	C4GdH嘉泰姆	L1GdH嘉泰姆	C2GdH嘉泰姆
1.2VGdH嘉泰姆	10μF MLCC x2GdH嘉泰姆	4.99kΩGdH嘉泰姆	10kΩGdH嘉泰姆	--GdH嘉泰姆	200pF~1nFGdH嘉泰姆	2.2μHGdH嘉泰姆	22μF MLCC x2GdH嘉泰姆
1.8VGdH嘉泰姆	10μF MLCC x2GdH嘉泰姆	4.99kΩGdH嘉泰姆	3.92kΩGdH嘉泰姆	--GdH嘉泰姆	200pF~1nFGdH嘉泰姆	2.2μHGdH嘉泰姆	22μF MLCC x2GdH嘉泰姆
2.5VGdH嘉泰姆	10μF MLCC x2GdH嘉泰姆	4.99kΩGdH嘉泰姆	2.32kΩGdH嘉泰姆	--GdH嘉泰姆	200pF~1nFGdH嘉泰姆	4.7μHGdH嘉泰姆	22μF MLCC x2GdH嘉泰姆
3.3VGdH嘉泰姆	10μF MLCC x2GdH嘉泰姆	30.9kΩGdH嘉泰姆	9.76kΩGdH嘉泰姆	--GdH嘉泰姆	200pF~1nFGdH嘉泰姆	4.7μHGdH嘉泰姆	22μF MLCC x2GdH嘉泰姆
5VGdH嘉泰姆	10μF MLCC x2GdH嘉泰姆	30.9kΩGdH嘉泰姆	5.76kΩGdH嘉泰姆	--GdH嘉泰姆	200pF~1nFGdH嘉泰姆	4.7μHGdH嘉泰姆	22μF MLCC x2GdH嘉泰姆
1.2VGdH嘉泰姆	100μF EC x1GdH嘉泰姆	4.99kΩGdH嘉泰姆	10kΩGdH嘉泰姆	0.1μFGdH嘉泰姆	--GdH嘉泰姆	2.2μHGdH嘉泰姆	100μF EC x1GdH嘉泰姆
1.8VGdH嘉泰姆	100μF EC x1GdH嘉泰姆	4.99kΩGdH嘉泰姆	3.92kΩGdH嘉泰姆	0.1μFGdH嘉泰姆	--GdH嘉泰姆	2.2μHGdH嘉泰姆	100μF EC x1GdH嘉泰姆
2.5VGdH嘉泰姆	100μF EC x1GdH嘉泰姆	4.99kΩGdH嘉泰姆	2.32kΩGdH嘉泰姆	0.1μFGdH嘉泰姆	--GdH嘉泰姆	4.7μHGdH嘉泰姆	100μF EC x1GdH嘉泰姆
3.3VGdH嘉泰姆	100μF EC x1GdH嘉泰姆	30.9kΩGdH嘉泰姆	9.76kΩGdH嘉泰姆	0.1μFGdH嘉泰姆	--GdH嘉泰姆	4.7μHGdH嘉泰姆	100μF EC x1GdH嘉泰姆
5VGdH嘉泰姆	100μF EC x1GdH嘉泰姆	30.9kΩGdH嘉泰姆	5.76kΩGdH嘉泰姆	0.1μFGdH嘉泰姆	--GdH嘉泰姆	4.7μHGdH嘉泰姆	100μF EC x1GdH嘉泰姆

七,功能概述GdH嘉泰姆

Absolute Maximum Ratings (Note 1)GdH嘉泰姆

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

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

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

高压同步DC-DC降压ICGdH嘉泰姆
型号GdH嘉泰姆	输入耐压GdH嘉泰姆	输出电压GdH嘉泰姆	输出电流GdH嘉泰姆	反馈电压GdH嘉泰姆	工作频率GdH嘉泰姆	效率GdH嘉泰姆	静态工GdH嘉泰姆作电流GdH嘉泰姆	待机电流GdH嘉泰姆	封装GdH嘉泰姆
CXSD61049GdH嘉泰姆	8V-35VGdH嘉泰姆	可调输出GdH嘉泰姆带线损补偿GdH嘉泰姆	2A/带可调恒流设置GdH嘉泰姆	1.21VGdH嘉泰姆	130KGdH嘉泰姆	95%GdH嘉泰姆	1.3mAGdH嘉泰姆	112uAGdH嘉泰姆	SOP-8GdH嘉泰姆
CXSD61050GdH嘉泰姆	8V-35VGdH嘉泰姆	可调输出/带线损GdH嘉泰姆补偿带使能端GdH嘉泰姆	2A/带可调恒流设置GdH嘉泰姆	1.21VGdH嘉泰姆	130KGdH嘉泰姆	93%GdH嘉泰姆	1.3mAGdH嘉泰姆		SOP-8GdH嘉泰姆
CXSD61046GdH嘉泰姆	4.5-20VGdH嘉泰姆	可调输出GdH嘉泰姆	2.0AGdH嘉泰姆	0.923VGdH嘉泰姆	340KGdH嘉泰姆	95%GdH嘉泰姆	1mAGdH嘉泰姆	6uAGdH嘉泰姆	SOP-8GdH嘉泰姆
CXSD61046A/BGdH嘉泰姆	4.5-27VGdH嘉泰姆	可调输出GdH嘉泰姆	2.0A/2.5AGdH嘉泰姆	0.925VGdH嘉泰姆	340KGdH嘉泰姆	96%GdH嘉泰姆	1.3mAGdH嘉泰姆	0.3uAGdH嘉泰姆	SOP-8GdH嘉泰姆
CXSD61048GdH嘉泰姆	8V--35VGdH嘉泰姆	可调输出GdH嘉泰姆带线损补偿GdH嘉泰姆	2.0A/带可调限流保护GdH嘉泰姆	1.2VGdH嘉泰姆	100-500KGdH嘉泰姆	93%GdH嘉泰姆	750uAGdH嘉泰姆	110uAGdH嘉泰姆	ESOP-8GdH嘉泰姆
CXSD61048AGdH嘉泰姆	10V--35VGdH嘉泰姆	可调输出GdH嘉泰姆带线损补偿GdH嘉泰姆	2.5A/带可调限流保护GdH嘉泰姆	1.2VGdH嘉泰姆	100-500K可调GdH嘉泰姆	93%GdH嘉泰姆	15mAGdH嘉泰姆	110uAGdH嘉泰姆	SOP-8GdH嘉泰姆
CXSD61048BGdH嘉泰姆	8V-35VGdH嘉泰姆	可调输出GdH嘉泰姆带线损补偿GdH嘉泰姆	2.8A/带可调限流保护GdH嘉泰姆	1.21VGdH嘉泰姆	100-500K可调GdH嘉泰姆	93%GdH嘉泰姆	15mAGdH嘉泰姆	110uAGdH嘉泰姆	SOP-8GdH嘉泰姆
CXSD61048CGdH嘉泰姆	8V-35VGdH嘉泰姆	可调输出GdH嘉泰姆带线损补偿GdH嘉泰姆	3.2A/带可调限流保护GdH嘉泰姆	1.21VGdH嘉泰姆	100-500K可调GdH嘉泰姆	93%GdH嘉泰姆	15mAGdH嘉泰姆	110uAGdH嘉泰姆	SOP-8GdH嘉泰姆
CXSD61047GdH嘉泰姆	4.6-22VGdH嘉泰姆	可调输出GdH嘉泰姆	3.0AGdH嘉泰姆	0.923VGdH嘉泰姆	340KGdH嘉泰姆	95%GdH嘉泰姆	55uAGdH嘉泰姆	1uAGdH嘉泰姆	ESOP8GdH嘉泰姆
CXSD61047AGdH嘉泰姆	4.5-27VGdH嘉泰姆	可调输出GdH嘉泰姆	3.0AGdH嘉泰姆	0.925VGdH嘉泰姆	340KGdH嘉泰姆	93%GdH嘉泰姆	1.3mAGdH嘉泰姆	0.3uAGdH嘉泰姆	ESOP8GdH嘉泰姆
CXSD61047BGdH嘉泰姆	4.5V-23VGdH嘉泰姆	可调输出GdH嘉泰姆	3.5AGdH嘉泰姆	0.925VGdH嘉泰姆	340KGdH嘉泰姆	96%GdH嘉泰姆	2.5mAGdH嘉泰姆		ESOP-8GdH嘉泰姆
CXSD61051GdH嘉泰姆	8V-35VGdH嘉泰姆	可调输出GdH嘉泰姆带线损补偿GdH嘉泰姆	扩流4.5A带GdH嘉泰姆可调限流保护GdH嘉泰姆	1.21VGdH嘉泰姆	100-500K可调GdH嘉泰姆	95%GdH嘉泰姆	14mAGdH嘉泰姆	100uAGdH嘉泰姆	ESOP8GdH嘉泰姆
CXSD61052GdH嘉泰姆	3.6-40VGdH嘉泰姆	可调输出GdH嘉泰姆	2.0AGdH嘉泰姆	0.8VGdH嘉泰姆	440KGdH嘉泰姆	94%GdH嘉泰姆	74uAGdH嘉泰姆	0.07uAGdH嘉泰姆	ESOP-8GdH嘉泰姆
CXSD61053GdH嘉泰姆	4.5-20VGdH嘉泰姆	可调输出GdH嘉泰姆	4.0AGdH嘉泰姆	0.923VGdH嘉泰姆	340KGdH嘉泰姆	95%GdH嘉泰姆	1.6mAGdH嘉泰姆	6uAGdH嘉泰姆	ESOP8GdH嘉泰姆
CXSD61054GdH嘉泰姆	3.5-23VGdH嘉泰姆	可调输出GdH嘉泰姆	2.0AGdH嘉泰姆	0.6VGdH嘉泰姆	600KGdH嘉泰姆	96%GdH嘉泰姆	400uAGdH嘉泰姆	1uAGdH嘉泰姆	SOT-26GdH嘉泰姆
CXSD61055GdH嘉泰姆	4.5-17VGdH嘉泰姆	可调输出GdH嘉泰姆	2.0AGdH嘉泰姆	0.6VGdH嘉泰姆	600KGdH嘉泰姆	96%GdH嘉泰姆	400uAGdH嘉泰姆	1uAGdH嘉泰姆	SOT-26GdH嘉泰姆
CXSD61055AGdH嘉泰姆	4.5V-23VGdH嘉泰姆	可调输出GdH嘉泰姆	2.0AGdH嘉泰姆	0.8VGdH嘉泰姆	600KGdH嘉泰姆	92%GdH嘉泰姆	800uAGdH嘉泰姆		SOT-26GdH嘉泰姆
CXSD61055BGdH嘉泰姆	3.3-17VGdH嘉泰姆	可调输出GdH嘉泰姆	2.0AGdH嘉泰姆	0.6VGdH嘉泰姆	600KGdH嘉泰姆	96%GdH嘉泰姆	400uAGdH嘉泰姆	4uAGdH嘉泰姆	SOT-26GdH嘉泰姆
CXSD61056GdH嘉泰姆	4.5-26VGdH嘉泰姆	可调输出GdH嘉泰姆	1.2AGdH嘉泰姆	0.8VGdH嘉泰姆	1.4MGdH嘉泰姆	94%GdH嘉泰姆	600uAGdH嘉泰姆	1uAGdH嘉泰姆	SOT-26GdH嘉泰姆
CXSD61057GdH嘉泰姆	4.0-42VGdH嘉泰姆	可调输出GdH嘉泰姆	1.5AGdH嘉泰姆	0.8VGdH嘉泰姆	650KGdH嘉泰姆	91%GdH嘉泰姆	600uAGdH嘉泰姆	6uAGdH嘉泰姆	SOT-26GdH嘉泰姆

上一篇： CXSD61055 4.5V to 16V Input Voltage Range Integrated internal compensation 2A Output Current Over C

下一篇：CXSD61055B high frequency, synchronous, rectified, step-down, switch-mode converter with internal po

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