100%占空比提供低损耗CXSD62125A同步降压稳压器输入电压从2.7V到6.0V

首页 > 新闻中心 > 行业新闻

发表时间：2020-04-25浏览次数：168

100%占空比提供低损耗CXSD62125A同步降压稳压器输入电压从2.7V到6.0V

目录pBd嘉泰姆

1.产品概述         2.产品特点pBd嘉泰姆
3.应用范围       4.下载产品资料PDF文档 pBd嘉泰姆
5.产品封装图                     6.电路原理图             pBd嘉泰姆
7.功能概述       8.相关产品pBd嘉泰姆

一,产品概述(General Description) pBd嘉泰姆
CXSD62125 CXSD62125A is a 1.5MHz high efficiency monolithic synchronous buck regulator.Design with current mode scheme,the CXSD62125 CXSD62125A is stable with ceramic output capacitor. Input voltage from 2.7V to 6.0V makes the CXSD62125 CXSD62125A ideally suited for single Li-Ion battery powered pBd嘉泰姆

applications. 100%duty cycle provides low dropout operation, extending battery pBd嘉泰姆

life in portable electrical devices.The internally fixed 1.5MHz operating frequencypBd嘉泰姆

allows the using of small surface mount inductors and capacitors. The synchronous switches included inside increase the efficiency and eliminate the need of an external Schottky diode.pBd嘉泰姆

The CXSD62125 CXSD62125A is available in SOT-23-5/TSOT-23-5A packages.pBd嘉泰姆
二.产品特点(Features)pBd嘉泰姆
1A Output CurrentpBd嘉泰姆
Wide 2.7V~6.0V Input VoltagepBd嘉泰姆
Fixed 1.5MHz Switching FrequencypBd嘉泰姆
Low Dropout Operating at 100% Duty CyclepBd嘉泰姆
25μA Quiescent CurrentpBd嘉泰姆
Integrate Synchronous RectifierpBd嘉泰姆
0.6V Reference VoltagepBd嘉泰姆
Current-Mode Operation with InternalpBd嘉泰姆
CompensationpBd嘉泰姆
- Stable with Ceramic Output CapacitorspBd嘉泰姆
- Fast Line Transient ResponsepBd嘉泰姆
Short-Circuit ProtectionpBd嘉泰姆
Over-Temperature Protection with HysteresispBd嘉泰姆
Available in SOT-23-5/TSOT-23-5A PackagespBd嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)pBd嘉泰姆
三,应用范围 (Applications)pBd嘉泰姆

HD STBpBd嘉泰姆

BT MousepBd嘉泰姆
PND InstrumentpBd嘉泰姆
Portable InstrumentpBd嘉泰姆
四.下载产品资料PDF文档 pBd嘉泰姆

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！pBd嘉泰姆

QQ截图20160419174301.jpg pBd嘉泰姆

五,产品封装图 (Package)pBd嘉泰姆

pBd嘉泰姆

六.电路原理图pBd嘉泰姆

pBd嘉泰姆

七,功能概述pBd嘉泰姆

In most applications, the CXSD62125 CXSD62125A does not dissipate much heat due to its high efficiency. But, in applications where the CXSD62125 CXSD62125A is running at high ambient tempera ture with low supply voltage and high duty cycles, the heat dissipated may exceed the maximum junction temperature of the part. If the junction temperature reaches ap-proximately 150°C, both power switches will be turned off and the SW node will become high impedance.To avoid the CXSD62125 CXSD62125A from exceeding the maximum junction temperature, the user will need to do some thermal analysis. The goal of the thermal analysis is to determine whether the power dissipated exceeds the maxi-mum junction temperature of the part. The power dissipated by the part is approximated:pBd嘉泰姆
PD ≅ IOUT2 x (RP-FET x D+RN-FET x (1-D))pBd嘉泰姆
The temperature rise is given by:pBd嘉泰姆
TR = (PD)(èJA)pBd嘉泰姆
Where PD is the power dissipated by the regulator, D ispBd嘉泰姆
duty cycle of main switchpBd嘉泰姆
D = VOUT/VINpBd嘉泰姆
The èJA is the thermal resistance from the junction of thepBd嘉泰姆
die to the ambient temperature. The junction temperature,pBd嘉泰姆
TJ, is given by:pBd嘉泰姆
TJ = TA + TRpBd嘉泰姆
Where TA is the ambient temperature.
Layout ConsiderationpBd嘉泰姆
For all switching power supplies, the layout is an important step in the design; especially at high peak currentspBd嘉泰姆
and switching frequencies. If the layout is not carefully done, the regulator might show noise problems and dutypBd嘉泰姆
cycle jitter.pBd嘉泰姆
1. The input capacitor should be placed close to the VIN and GND. Connecting the capacitor and VIN/GND withpBd嘉泰姆
short and wide trace without any via holes for good input voltage filtering. The distance between VIN/GNDpBd嘉泰姆
to capacitor less than 2mm respectively is recommended.pBd嘉泰姆
2. To minimize copper trace connections that can inject noise into the system, the inductor should be placedpBd嘉泰姆
as close as possible to the SW pin to minimize the noise coupling into other circuits.pBd嘉泰姆
3. The output capacitor should be place closed to converter VOUT and GND.pBd嘉泰姆
4. Since the feedback pin and network is a high impedance circuit the feedback network should be routedpBd嘉泰姆
away from the inductor. The feedback pin and feedback network should be shielded with a ground planepBd嘉泰姆
or trace to minimize noise coupling into this circuit.pBd嘉泰姆
5. A star ground connection or ground plane minimizes ground shifts and noise is recommended.pBd嘉泰姆
八,相关产品 更多同类产品.......pBd嘉泰姆

Switching Regulator > Buck ConverterpBd嘉泰姆
Part_No pBd嘉泰姆	PackagepBd嘉泰姆	ArchitectupBd嘉泰姆	No.ofpBd嘉泰姆 PWM pBd嘉泰姆 OutpupBd嘉泰姆	DrivepBd嘉泰姆 LoutpBd嘉泰姆 (A) pBd嘉泰姆	Vin(V) pBd嘉泰姆		FmaxpBd嘉泰姆 Khz pBd嘉泰姆	Vref pBd嘉泰姆 (V) pBd嘉泰姆	R-Top (milohm) pBd嘉泰姆	R-Sync (milohm) pBd嘉泰姆	Iq (No load) (uA) pBd嘉泰姆
Part_No pBd嘉泰姆	PackagepBd嘉泰姆	ArchitectupBd嘉泰姆	No.ofpBd嘉泰姆 PWM pBd嘉泰姆 OutpupBd嘉泰姆	DrivepBd嘉泰姆 LoutpBd嘉泰姆 (A) pBd嘉泰姆	minpBd嘉泰姆	maxpBd嘉泰姆	FmaxpBd嘉泰姆 Khz pBd嘉泰姆	Vref pBd嘉泰姆 (V) pBd嘉泰姆	R-Top (milohm) pBd嘉泰姆	R-Sync (milohm) pBd嘉泰姆	Iq (No load) (uA) pBd嘉泰姆
CXSD62122pBd嘉泰姆	TQFN5x6-28pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	5pBd嘉泰姆	4.5pBd嘉泰姆	26pBd嘉泰姆	380pBd嘉泰姆	0.8pBd嘉泰姆	50pBd嘉泰姆	20pBd嘉泰姆	1000pBd嘉泰姆
CXSD62123pBd嘉泰姆	SOP-8pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	2pBd嘉泰姆	4.5pBd嘉泰姆	26pBd嘉泰姆	380pBd嘉泰姆	0.8pBd嘉泰姆	100pBd嘉泰姆		1000pBd嘉泰姆
CXSD62124pBd嘉泰姆	SOP-8PpBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	4pBd嘉泰姆	4.5pBd嘉泰姆	26pBd嘉泰姆	380pBd嘉泰姆	0.8pBd嘉泰姆	80pBd嘉泰姆		1000pBd嘉泰姆
CXSD62125pBd嘉泰姆	SOT23-5\|TSOT23-5pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆	25pBd嘉泰姆
CXSD62125ApBd嘉泰姆	SOT23-5pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆
CXSD62126pBd嘉泰姆	SOP-8pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	3pBd嘉泰姆	4.3pBd嘉泰姆	14pBd嘉泰姆	500pBd嘉泰姆	0.8pBd嘉泰姆	70pBd嘉泰姆	70pBd嘉泰姆	500pBd嘉泰姆
CXSD62127pBd嘉泰姆	SOP-8PpBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	3pBd嘉泰姆	4.3pBd嘉泰姆	14pBd嘉泰姆	500pBd嘉泰姆	0.8pBd嘉泰姆	55pBd嘉泰姆	45pBd嘉泰姆	500pBd嘉泰姆
CXSD62128BpBd嘉泰姆	TDFN3x3-10pBd嘉泰姆			3pBd嘉泰姆	2.6pBd嘉泰姆	5.5pBd嘉泰姆	2000pBd嘉泰姆	0.8pBd嘉泰姆	110pBd嘉泰姆	110pBd嘉泰姆	460pBd嘉泰姆
CXSD62129pBd嘉泰姆	TDFN3x3-10pBd嘉泰姆	CMpBd嘉泰姆	2pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆	500pBd嘉泰姆
CXSD62129ApBd嘉泰姆	TDFN3x3-10pBd嘉泰姆	CMpBd嘉泰姆	2pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆
CXSD62130pBd嘉泰姆	TDFN2x2-6pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆	25pBd嘉泰姆
CXSD62130ApBd嘉泰姆	TDFN2x2-6pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆
CXSD62131pBd嘉泰姆	TDFN3x3-12pBd嘉泰姆	CMpBd嘉泰姆	2pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆	25pBd嘉泰姆
CXSD62131ApBd嘉泰姆	TDFN3x3-12pBd嘉泰姆	CMpBd嘉泰姆	2pBd嘉泰姆	1pBd嘉泰姆	2.7pBd嘉泰姆	6pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆
CXSD62131CpBd嘉泰姆	TDFN 3x3 12pBd嘉泰姆	CMpBd嘉泰姆	2pBd嘉泰姆	1pBd嘉泰姆	3pBd嘉泰姆	5.5pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆	30pBd嘉泰姆
CXSD62132pBd嘉泰姆	TQFN3x3-20pBd嘉泰姆	CMpBd嘉泰姆	3pBd嘉泰姆	2pBd嘉泰姆	2.9pBd嘉泰姆	5.5pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	-pBd嘉泰姆	-pBd嘉泰姆	300pBd嘉泰姆
CXSD62133pBd嘉泰姆	TDFN2x2-8pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	1pBd嘉泰姆	3.3pBd嘉泰姆	8pBd嘉泰姆	1500pBd嘉泰姆	0.6pBd嘉泰姆	280pBd嘉泰姆	250pBd嘉泰姆	25pBd嘉泰姆
CXSD62134pBd嘉泰姆	SOP-8pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	2pBd嘉泰姆	4.5pBd嘉泰姆	24pBd嘉泰姆	340pBd嘉泰姆	0.925pBd嘉泰姆	110pBd嘉泰姆	110pBd嘉泰姆	1900pBd嘉泰姆
CXSD62135pBd嘉泰姆	SOP-8PpBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	3pBd嘉泰姆	4.5pBd嘉泰姆	24pBd嘉泰姆	340pBd嘉泰姆	0.925pBd嘉泰姆	110pBd嘉泰姆	110pBd嘉泰姆	1900pBd嘉泰姆
CXSD62136pBd嘉泰姆	SOP-8pBd嘉泰姆	CMpBd嘉泰姆	1pBd嘉泰姆	2pBd嘉泰姆	4.5pBd嘉泰姆	24pBd嘉泰姆	340pBd嘉泰姆	0.92pBd嘉泰姆	130pBd嘉泰姆	130pBd嘉泰姆	1900pBd嘉泰姆
pBd嘉泰姆

上一篇：CXSD62125 1.5MHz高效单片同步降压稳压器电流模式设计陶瓷输出电容稳定单锂离子电池供电

下一篇：70mΩ功率MOSFETs的3A同步整流Buck变换器CXSD62126电流模式控制方案4.3V宽输入电压转换为14V

发表评论

产品中心

电源管理

LED驱动电路

音频放大IC

电机风扇驱动芯片

MCU存储ADC时钟数据线

功率器件

隔离芯片

电池充电芯片

技术支持

产品方案

质量承诺

联系我们