HiSAT COT同步整流降压微DC变换器CXDC65117内部P通道驱动晶体管被强制关闭感应器控制IC内置UVLO-CL放电软启动电路

CXDC65117系列是一种同步降压微型DC/DC转换器，它集成了一个微型封装（2.0 mm×2.5 mm，h=1.0 mm）中的感应器和控制IC。内部线圈简化了使电路布线引起的噪音和其他操作故障最小化。宽的工作电压范围为2.5V至5.5V，支持需要内部固定的应用输出电压（0.8V至3.6V）。CXDC65117/CXDC65118系列在工作频率3.0兆赫。CXDC65117/CXDC65118系列使用HiSAT COT（*）同步整流。HiSAT COT+PWM控制（CXDC65117）或HiSAT COT+自动PWM/PFM开关控制（CXDC65118）可以可供选择。该系列具有高达0.3ms的高速软启动，用于快速启动。与内置UVLO（欠压锁定（Out）功能，内部P通道驱动晶体管被强制关闭
当输入电压变为2.0V或更低时。当CE=低时，集成CL放电功能使输出电容器CL处的电荷通过内部放电开关放电位于LX和VSS引脚之间。功耗小于1.0μA。

目录

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

一,产品概述(General Description)      
   The CXDC65117/CXDC65118 series is a synchronous step-down micro DC/DC converter which integrates an

 inductor and a control IC in one tiny package (2.0mm×2.5mm, h=1.0mm). An internal coil simplifies the

 circuit and enables minimization of noise and other operational trouble due to the circuit wiring. A wide

 operating voltage range of 2.5V to 5.5V enables support for applications that require an internally fixed

 output voltage (0.8V to 3.6V). The CXDC65117/CXDC65118 series uses synchronous rectification at an 

operating frequency of 3.0MHz. The CXDC65117/CXDC65118 series uses HiSAT-COT (*) synchronous rectification.

HiSAT-COT+PWM control (CXDC65117) or HiSAT-COT+automatic PWM/PFM switching control (CXDC65118) can 

be selected.The series have a high speed soft-start as fast as 0.3ms in typical for quick turn-on. With the
built-in UVLO (Under Voltage Lock (Out) function, the internal P-channel driver transistor is forced OFF 

when input voltage becomes 2.0V or lower. When CE=Low,the integrated CL discharge function which 

enables the electric charge at the output capacitor CL to be discharged via the internal discharge switch

 located between the LX and VSS pins. The power consumption will be less than 1.0μA.
二.产品特点(Features)
Input Voltage : 2.5V～5.5V
Output Voltage : 0.8V～3.6V(±2.0%)
Oscillation Frequency : 3.0MHz
Output Current : 1.0A Efficiency : 93% (VIN=5.0V, VOUT=3.3V/300mA)
Control Methods : HiSAT-COT 100% Duty Cycle HiSAT-COT+PWM (CXDC65117) HiSAT-COT+PWM/PFM (CXDC65118)
Circuit Protection : Thermal Shut Down Current Limit Circuit (Drop) Short Circuit Protection (Latch)
Functions : Soft-start Circuit Built-in UVLO CL Discharge
Output Capacitor : Low ESR Ceramic Capacitor
Operating Ambient Temperature : -40℃～+105℃
Package : CL-2025-02
Environmental Friendly : EU RoHS Compliant, Pb Free
三,应用范围 (Applications)
●Note Book PC
●Tablet PC
●SSD(Solid State Drive)
●Mobile phone
●Digital still camera
●Portable game machine
四.技术规格书下载（产品PDF）
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！

 

五,产品封装图 (Package)

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PIN NUMBER	PIN NAME	FUNCTIONS
1	Lx	Switching Output
2	AGND	Analog Ground
3	VOUT	Fixed Output Voltage PIN
4	CE	Chip Enable
5	PGND	Power Ground
6	VIN	Power Input
7	L1	Inductor Electrodes
8	L2	Inductor Electrodes

六.电路原理图

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七,功能概述

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PARAMETER	SYMBOL	RATINGS
VIN Pin Voltage	VIN	-0.3 ~ + 6.2
LX Pin Voltage	VLx	(*1) - 0.3 ~ VIN + 0.3 or + 6.2
VOUT Pin Voltage	Vout	(*2) - 0.3 ~ VIN + 0.3 or + 4.0
CE Pin Voltage	VCE	- 0.3 ~ + 6.2
Power Dissipation	Pd	(*3) 1000
Operating Ambient Temperature	Topr	- 40 ~ + 105
Storage Temperature	Tstg	- 55 ~ + 125

八,相关芯片选择指南                   更多同类产品.......          

线圈一体型DC/DC转换器
产品名称	封装	类型	控制	FET	VIN (MIN) (V)	VIN MAX (V)	VOUT MIN V	VOUT MAX  V	IOUTorIIN  mA	FB/VOUT 电压精度 (%)	振荡频率 (MHz)	消耗电流 (μA)
CXDC65102	cl2025 cl2025-02	StepUP	PFM	Nch FET Pch FET	0.9	5.5	2	5	100	±2.0	1.2	6.3
CXDC65103	cl2025-02	升压	PWM	Nch FET Pch FET	0.9	6	2	5.5	500mA@VOUT=5.0V, VBAT=3.3V(TYP.) 350mA@VOUT=3.3V,  VBAT=1.8V(TYP.)	±2.0	3
CXDC65104	cl2025-02	升压	Auto PWM/PFM	Nch FET Pch FET	0.9	6	2	5.5	500mA@VOUT=5.0V, VBAT=3.3V(TYP.) 350mA@VOUT=3.3V,  VBAT=1.8V(TYP.)	±2.0	3
CXDC65105	cl2025 cl2025-02	StepDown	PWM	Nch FET Pch FET	2	6	1	4	400	±2.0	1.2	22
CXDC65106	cl2025 cl2025-02	StepDown	PWM PFM	Nch FET Pch FET	2	6	1	4	400	±2.0	1.2	22
CXDC65107	cl2025 cl2025-02	StepDown	PWM	Nch FET Pch FET	2	6	1	4	600	±2.0	3	46
CXDC65108	cl2025 cl2025-02	StepDown	PWM/PFM	Nch FET Pch FET	2	6	1	4	600	±2.0	3	21
CXDC65109	cl2025 cl2025-02	StepDown	PWM/PFM 外部转换	Nch FET Pch FET	2	6	1	4	600	±2.0	3	21
CXDC65110	usp10b03	StepDown	PWM	Nch FET Pch FET	1.8	6	1	4	400	±2.0	3	46
CXDC65111	usp10b03	StepDown	PWM PFM	Nch FET Pch FET	1.8	6	1	4	400	±2.0	3	21
CXDC65112	cl2025-02	StepDown	PFM	Nch FET Pch FET	2	6	1	4	200	±2.0	3	0.5
CXDC65113	usp11b01	StepDown	PWM	Nch FET Pch FET	2.7	6	1	VIN	2000	±2.0	2.4	53
CXDC65114	usp11b01	StepDown	PWM PFM	Nch FET Pch FET	2.7	6	1	VIN	2000	±2.0	2.4	53
CXDC65115	usp9b01	StepDown	PWM	Nch FET Pch FET	2.7	5.5	1	3.6	1500	±2.0	3	400
CXDC65116	usp9b01	StepDown	PWM PFM	Nch FET Pch FET	2.7	5.5	1	3.6	1500	±2.0	3	25
CXDC65117	cl2025-02	StepDown	PWM	Nch FET Pch FET	2.5	5.5	1	3.6	1000		3	400
CXDC65118	cl2025-02	StepDown	PWM PFM	Nch FET Pch FET	2.5	5.5	1	3.6	1000		3	40
CXDC65119	cl2025-02	StepDown	PWM	Nch FET Pch FET	2.5	5.5	1	3.6	500		1.2	250
CXDC65120	cl2025-02	StepDown	PWM/PFM	Nch FET Pch FET	2.5	5.5	1	3.6	500		1.2	1