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.
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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)
|
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 |
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 |
||||||||||||
|
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 |
||
