中文
EnglishCXDC65113限流电路软启动电路内置于CL放电低ESR陶瓷电容器同步降压微型DC转换器自动脉宽调制功率因数调制开关控制
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 CXDC65113/CXDC65114 series is a synchronous step-down micro DC/DC converter which integrates an
inductor and a control IC in one tiny package (3.1mm×4.7mm, h=1.3mm).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 6.0V enables support for applications that require an externally set output voltage can
be selected. The CXDC65113/CXDC65114 series uses synchronous rectification at an operating frequency of
2.4MHz. PWM control(CXDC65113) or automatic PWM/PFM switching control (CXDC65114) can be selected.
The CXDC65113 series has a fixed frequency,enabling the suppression of output ripple. The CXDC65114 series
achieves high efficiency while holding down output ripple across the full range of loads, from light to heavy,
enabling the extension of battery operation time.
The series have a high speed soft-start as fast as 1ms in typical for quick turn-on. With the built-in UVLO
(Under Voltage LockOut) function, the internal P-channel driver transistor is forced OFF when input voltage
becomes 2.4V or lower. It’s suitable for large-current application due to limit current is configured 4.0A in
typical. 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 GND
pins. Due to CL discharge function, malfunction on LX is prevented when Stand-by mode
二.产品特点(Features)
Package Size : 3.1mm×4.7mm, h=1.3mm
Input Voltage : 2.7V～6.0V
Output Voltage : 0.9V～VIN (FB Voltage=0.8V±2%)
High Efficiency : 94% (VIN=5.0V, VOUT=3.3V)
Output Current : 2.0A
Oscillation Frequency : 2.4MHz (±15%)
Maximum Duty Cycle : 100%
Control Methods : PWM (CXDC65113) PWM/PFM (CXDC65114)
Functions : Current Limit Circuit (automatic return) Soft-Start Circuit Built-In CL Discharge, UVLO
Output Capacitor : Low ESR Ceramic Capacitor
Operating Ambient Temperature : -40℃～+85℃
Package : USP-11B01
Environmental Friendly : EU RoHS Compliant, Pb Free
三,应用范围 (Applications)
●Note PCs
●Printers
●Tablet PCs
●PND(Portable Navigation Device)
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 |
NC |
No Connection |
|
2 |
Lx |
Switching Output |
|
3 |
Lx |
Switching Output |
|
4 |
NC |
No Connection |
|
5 |
FB |
Output Voltage Monitor |
|
6 |
CE |
Chip Enable |
|
7 |
AVIN |
Analog Input |
|
8 |
GND |
Ground |
|
9 |
PVIN |
Power Input |
|
10 |
L1 |
Inductor Electrodes |
|
11 |
L2 |
Inductor Electrodes |
六.电路原理图
七,功能概述
|
PARAMETER |
SYMBOL |
RATINGS |
UNIT |
|
|
PVIN Pin Voltage |
VPVIN |
(*1) |
V |
|
|
AVIN Pin Voltage |
VAVIN |
|||
|
CE Pin Voltage |
||||
|
VCE |
-0.3 ~ +7.0 |
V |
||
|
FB Pin Voltage |
VFB |
-0.3 ~ +7.0 |
V |
|
|
Lx Pin Voltage |
VLx |
(*2) |
V |
|
|
Lx Pin Current |
ILx |
(*3) |
A |
|
|
Power Dissipation |
USP-11B01 |
Pd |
1000 |
mW |
|
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 |
||||||||||||
|
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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