CXDC65119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。内部线圈简化了电路使电路布线引起的噪音和其他操作故障最小化。广泛的经营电压范围为2.5V至5.5V，支持需要内部固定输出电压的应用
（0.8伏至3.6伏）。CXDC65119/CXDC65120系列在工作频率下使用同步整流1.2兆赫。CXDC65119/CXDC65120系列使用HiSAT COT（*）同步整流。HiSAT COT+脉冲宽度调制
可以选择控制（CXDC65119）或HiSAT COT+自动PWM/PFM切换控制（CXDC65120）。
该系列具有高达0.25ms（典型值）的高速软启动，用于快速启动。内置的UVLO（欠压锁定）功能，输入时内部P通道驱动晶体管被强制关闭电压变为2.0V或更低。当CE=低时，集成的CL放电功能使通过位于LX之间的内部放电开关在输出电容器CL处充电和PGND管脚。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 CXDC65119/CXDC65120 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 CXDC65119/CXDC65120 series uses synchronous rectification at an operating frequency
of 1.2MHz. The CXDC65119/CXDC65120 series uses HiSAT-COT (*) synchronous rectification. HiSAT-COT+PWM
control (CXDC65119) or HiSAT-COT+automatic PWM/PFM switching control (CXDC65120) can be selected.
The series have a high speed soft-start as fast as 0.25ms (TYP.) 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, theintegrated 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 PGND pins. The power consumption will be less than 1.0μA.
二.产品特点(Features)
三,应用范围 (Applications)
●Wearable Device
●Bluetooth Module
●SSD(Solid State Drive)
●Mobile phone
●Digital still camera
●Portable game devices
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)
六.电路原理图
七,功能概述
|
PARAMETER |
SYMBOL |
RATINGS |
UNITS |
|
VIN Pin Voltage |
VIN |
-0.3 ~ + 6.2 |
V |
|
LX Pin Voltage |
VLx |
(*1) |
V |
|
VOUT Pin Voltage |
Vout |
(*2) |
V |
|
CE Pin Voltage |
VCE |
- 0.3 ~ + 6.2 |
V |
|
Power Dissipation |
Pd |
(*3) |
mW |
|
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 |
||
