The CXDC65112 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 2.0V to 6.0V enables support for applications that require an internally fixed output voltage from 1.0V to 4.0V in increments of 0.05V.During stand-by, all circuits are shutdown to reduce currentconsumption to as low as 0.1μA
or less.With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor
is forced OFF when input voltage becomes UVLO ditect Voltage or lower. The CXDC65112 integrate 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. When the devices enter stand-by mode, output voltage quickly
returns to the VSS level as a result of this function
-
"
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 CXDC65112 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 2.0V to 6.0V enables support for applications that require an internally fixed output voltage from 1.0V to 4.0V in increments of 0.05V.During stand-by, all circuits are shutdown to reduce currentconsumption to as low as 0.1μA
or less.With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor
is forced OFF when input voltage becomes UVLO ditect Voltage or lower. The CXDC65112 integrate 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. 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)
Input Voltage : 2.0V～6.0V
Output Voltage : 1.0V～4.0V (±2.0%, 0.05V step increments)
Control Methods : PFM control
Output Current : 200mA(CXDC65112A/CXDC65112C) 50mA(CXDC65112B/CXDC65112D)
Supply Current : 0.5μA
High Efficiency : 93% (VIN=3.6V,VOUT=3.0V/100μA)
Function : UVLO Short Circuit Protection CL Discharge
Capacitor : Low ESR Ceramic Capacitor
Operating Ambient Temperature : -40℃～+85℃
Packages : CL-2025-02
Environmentally Friendly : EU RoHS Compliant, Pb Free
三,应用范围 (Applications)
● Wearable Devices
● Smart meters
● Bluetooth units
● Energy Harvest devices
● Back up power supply circuits
● Portable game consoles
● Devices with 1 Lithium cell
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 |
|
2 |
GND |
Ground |
|
3 |
VOUT |
Output Voltage |
|
4 |
CE |
Chip Enable |
|
5 |
NC |
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 ~ +7.0 |
V |
|
LX Pin Voltage |
VLX |
(*1) |
V |
|
VOUT Pin Voltage |
VOUT |
(*1) |
V |
|
CE Pin Voltage |
VCE |
-0.3 ~ +7.0 |
V |
|
LX Pin Current |
ILX |
1000 |
mA |
|
Power Dissipation |
Pd |
(*2) |
mW |
|
Operating Ambient Temperature |
Topr |
-40 ~ +85 |
˚C |
|
Storage Temperature |
Tstg |
-55 ~ +125 |
˚C |
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 |
||
