中文
EnglishCXDC65115同步降压微型DC转换器振荡频率3.0MHz输入电压2.7V～5.5V输出电压0.8V～3.6V输出电流1.5A内置UVLO-CL放电软启动电路
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 CXDC65115/CXDC65116 series is a synchronous step-down micro DC/DC converter which integrates an
inductor and a control IC in one tiny package (2.5mm×3.2mm, 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 2.7V to 5.5V enables support for applications that require an internally fixed output voltage (0.8V to 3.6V). The CXDC65115/CXDC65116 series uses synchronous rectification at an operating frequency of 3.0MHz. The CXDC65115/CXDC65116
series uses HiSAT-COT (*) synchronous rectification. HiSAT-COT+PWM control (CXDC65115) or HiSAT-COT+automatic
PWM/PFM switching control (CXDC65116) 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.HiSAT-COT is an
original JIATAIMU term for High Speed Transient Response.
二.产品特点(Features)
Input Voltage : 2.7V～5.5V
Output Voltage : 0.8V～3.6V
Oscillation Frequency : 3.0MHz
Output Current : 1.5A
Efficiency : 92% (VIN=5.0V, VOUT=3.3V/500mA)
Control Methods : HiSAT-COT 100% Duty Cycle HiSAT-COT+PWM (CXDC65115) HiSAT-COT+PWM/PFM (CXDC65116)
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℃～+85℃ Package : USP-9B01
Environmental Friendly : EU RoHS Compliant, Pb Free
三,应用范围 (Applications)
●Note Book PC
●Tablet PC
●SSD
●Mobile phone
●Projector
●Printer
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 |
VIN |
Power Input |
|
2 |
NC |
No Connection |
|
3 |
Lx |
Switching Output |
|
4 |
VOUT |
Fixed Output Voltage PIN |
|
5 |
AGND |
Analog Ground |
|
6 |
CE |
Chip Enable |
|
7 |
PGND |
Power Ground |
|
8 |
L1 |
Inductor Electrodes |
|
9 |
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 |
1200 |
|
Operating Ambient Temperature |
Topr |
- 40 ~ + 85 |
|
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 |
||
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