The CXDC65107 series is a synchronous step-down micro DC/DC converter which
integrates an inductor and a control IC in one tiny package (2.5mm×2.0mm, H=1.0mm). A stable power supply
with an output current of 600mA is configured using only two capacitors connected externally.
Operating voltage range is from 2.0V to 6.0V(CXDC 20xG:1.8V～6.0V). Output voltage is internally set in a range
from 0.8V to 4.0V in increments of 0.05V. The device is operated by 3.0MHz, and includes 0.42ΩP-channel
driver transistor and 0.52Ω N-channel switching transistor. As for operation mode, the CXDC65107 series is PWM
control, the CXDC65108 series is automatic PWM/PFM switching control and the CXDC65109 series can be manually
switched between the PWM control mode and the automatic PWM/PFM switching control mode, allowing fast
response, low ripple and high efficiency over the full range of loads (from light load to heavy load). During
stand-by, the device is shutdown to reduce current consumption to as low as 1.0μA or less. With the built-in
UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage
becomes 1.4V or lower. CXDC65107B(G,F)/CXDC65108B(G,F)/CXDC65109B(G,F) series provide short-time turn-on
by the soft start function internally set in 0.25 ms (TYP). CXDC65107B(C,G,F) /CXDC65108 B(C,G,F) / CXDC65109B(C,G,F)
integrate CL auto discharge function which enables the electric charge stored at the output capacitor CL to be
discharged via the internal auto-discharge switch located between the LX and VSS pins. When the devices enter
stand-by mode, output voltage quickly returns to the VSS level as a result of this function.
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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 CXDC65107 series is a synchronous step-down micro DC/DC converter which
integrates an inductor and a control IC in one tiny package (2.5mm×2.0mm, H=1.0mm). A stable power supply
with an output current of 600mA is configured using only two capacitors connected externally.
Operating voltage range is from 2.0V to 6.0V(CXDC 20xG:1.8V～6.0V). Output voltage is internally set in a range
from 0.8V to 4.0V in increments of 0.05V. The device is operated by 3.0MHz, and includes 0.42ΩP-channel
driver transistor and 0.52Ω N-channel switching transistor. As for operation mode, the CXDC65107 series is PWM
control, the CXDC65108 series is automatic PWM/PFM switching control and the CXDC65109 series can be manually
switched between the PWM control mode and the automatic PWM/PFM switching control mode, allowing fast
response, low ripple and high efficiency over the full range of loads (from light load to heavy load). During
stand-by, the device is shutdown to reduce current consumption to as low as 1.0μA or less. With the built-in
UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage
becomes 1.4V or lower. CXDC65107B(G,F)/CXDC65108B(G,F)/CXDC65109B(G,F) series provide short-time turn-on
by the soft start function internally set in 0.25 ms (TYP). CXDC65107B(C,G,F) /CXDC65108 B(C,G,F) / CXDC65109B(C,G,F)
integrate CL auto discharge function which enables the electric charge stored at the output capacitor CL to be
discharged via the internal auto-discharge switch located between the LX and VSS pins. When the devices enter
stand-by mode, output voltage quickly returns to the VSS level as a result of this function.
二.产品特点(Features)
|
Ultra Small : |
2.5mm×2.0mm, H=1.0mm |
|
Input Voltage : |
2.0V ~ 6.0V(A/B/C Type) |
|
Output Voltage : |
0.8V ~ 4.0V (+2.0%) |
|
High Efficiency : |
90% (VIN=4.2V, VOUT=3.3V) |
|
Output Current : |
600mA |
|
Oscillation Frequency : |
3.0MHz (+15%) |
|
Maximum Duty Cycle : |
100% |
|
Control ethods : |
PWM (CXDC65107) |
|
PWM/PFM Auto (CXDC65108) |
|
|
PWM/PFM Manual (CXDC65109) |
|
|
Operating Ambient Temperature : |
-40℃～+85℃ |
三,应用范围 (Applications)
●Mobile phones, Smart phones
●Bluetooth Headsets
●WiMAX PDAs, MIDs, UMPCs
●Portable game consoles
●Digital cameras, Camcorders
●Electronic dictionaries
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)
Inductor Electrodes
|
PIN NUMBER |
PIN NAME |
FUNCTIONS |
|
1 |
Lx |
Switching Output |
|
2,5 |
VSS |
Ground |
|
3 |
VOUT |
Fixed Output Voltage Pin (A/B/C/G types) |
|
FB |
Output Voltage Sense Pin (F type) |
|
|
4 |
CE / MODE |
Chip Enable & Mode Switch |
|
6 |
VIN |
Power Input |
|
7 |
L1 |
Inductor Electrodes |
|
8 |
L2 |
六.电路原理图
七,功能概述
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 |
||
