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。
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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)
|
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
七,功能概述
|
PARAMETER |
SYMBOL |
RATINGS |
|
VIN Pin Voltage |
VIN |
-0.3 ~ + 6.2 |
|
LX Pin Voltage |
VLx |
(*1) |
|
VOUT Pin Voltage |
Vout |
(*2) |
|
CE Pin Voltage |
VCE |
- 0.3 ~ + 6.2 |
|
Power Dissipation |
Pd |
(*3) |
|
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 |
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|
产品名称 |
封装 |
类型 |
控制 |
FET |
VIN (MIN) (V) |
VIN MAX |
VOUT MIN V |
VOUT MAX V |
IOUTorIIN mA |
FB/VOUT 电压精度 (%) |
振荡频率 (MHz) |
消耗电流 (μA) |
|
cl2025 |
StepUP |
PFM |
Nch FET |
0.9 |
5.5 |
2 |
5 |
100 |
±2.0 |
1.2 |
6.3 |
|
|
cl2025-02 |
升压 |
PWM |
Nch 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 |
||
|
cl2025-02 |
升压 |
Auto PWM/PFM |
Nch FET |
0.9 |
6 |
2 |
5.5 |
500mA@VOUT=5.0V, VBAT=3.3V(TYP.) VBAT=1.8V(TYP.) |
±2.0 |
3 |
||
|
cl2025 |
StepDown |
PWM |
Nch FET |
2 |
6 |
1 |
4 |
400 |
±2.0 |
1.2 |
22 |
|
|
cl2025 |
StepDown |
PWM PFM |
Nch FET |
2 |
6 |
1 |
4 |
400 |
±2.0 |
1.2 |
22 |
|
|
cl2025 |
StepDown |
PWM |
Nch FET |
2 |
6 |
1 |
4 |
600 |
±2.0 |
3 |
46 |
|
|
cl2025 |
StepDown |
PWM/PFM |
Nch FET |
2 |
6 |
1 |
4 |
600 |
±2.0 |
3 |
21 |
|
|
cl2025 |
StepDown |
PWM/PFM 外部转换 |
Nch FET |
2 |
6 |
1 |
4 |
600 |
±2.0 |
3 |
21 |
|
|
usp10b03 |
StepDown |
PWM |
Nch FET |
1.8 |
6 |
1 |
4 |
400 |
±2.0 |
3 |
46 |
|
|
usp10b03 |
StepDown |
PWM PFM |
Nch FET |
1.8 |
6 |
1 |
4 |
400 |
±2.0 |
3 |
21 |
|
|
cl2025-02 |
StepDown |
PFM |
Nch FET |
2 |
6 |
1 |
4 |
200 |
±2.0 |
3 |
0.5 |
|
|
usp11b01 |
StepDown |
PWM |
Nch FET |
2.7 |
6 |
1 |
VIN |
2000 |
±2.0 |
2.4 |
53 |
|
|
usp11b01 |
StepDown |
PWM PFM |
Nch FET |
2.7 |
6 |
1 |
VIN |
2000 |
±2.0 |
2.4 |
53 |
|
|
usp9b01 |
StepDown |
PWM |
Nch FET |
2.7 |
5.5 |
1 |
3.6 |
1500 |
±2.0 |
3 |
400 |
|
|
usp9b01 |
StepDown |
PWM PFM |
Nch FET |
2.7 |
5.5 |
1 |
3.6 |
1500 |
±2.0 |
3 |
25 |
|
|
cl2025-02 |
StepDown |
PWM |
Nch FET |
2.5 |
5.5 |
1 |
3.6 |
1000 |
3 |
400 |
||
|
cl2025-02 |
StepDown |
PWM PFM |
Nch FET Pch FET |
2.5 |
5.5 |
1 |
3.6 |
1000 |
3 |
40 |
||
|
cl2025-02 |
StepDown |
PWM |
Nch FET |
2.5 |
5.5 |
1 |
3.6 |
500 |
1.2 |
250 |
||
|
cl2025-02 |
StepDown |
PWM/PFM |
Nch FET |
2.5 |
5.5 |
1 |
3.6 |
500 |
1.2 |
1 |
||
