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

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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M6t嘉泰姆

1.产品概述         2.产品特点M6t嘉泰姆
3.应用范围       4.下载产品资料PDF文档 M6t嘉泰姆
5.产品封装图                     6.电路原理图             M6t嘉泰姆
7.功能概述       8.相关产品M6t嘉泰姆

一,产品概述(General Description) M6t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 M6t嘉泰姆

applications. 100%duty cycle provides low dropout operation, extending battery M6t嘉泰姆

life in portable electrical devices.The internally fixed 1.5MHz operating frequencyM6t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.M6t嘉泰姆

The CXSD62125 CXSD62125A is available in SOT-23-5/TSOT-23-5A packages.M6t嘉泰姆
二.产品特点(Features)M6t嘉泰姆
1A Output CurrentM6t嘉泰姆
Wide 2.7V~6.0V Input VoltageM6t嘉泰姆
Fixed 1.5MHz Switching FrequencyM6t嘉泰姆
Low Dropout Operating at 100% Duty CycleM6t嘉泰姆
25μA Quiescent CurrentM6t嘉泰姆
Integrate Synchronous RectifierM6t嘉泰姆
0.6V Reference VoltageM6t嘉泰姆
Current-Mode Operation with InternalM6t嘉泰姆
CompensationM6t嘉泰姆
- Stable with Ceramic Output CapacitorsM6t嘉泰姆
- Fast Line Transient ResponseM6t嘉泰姆
Short-Circuit ProtectionM6t嘉泰姆
Over-Temperature Protection with HysteresisM6t嘉泰姆
Available in SOT-23-5/TSOT-23-5A PackagesM6t嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)M6t嘉泰姆
三,应用范围 (Applications)M6t嘉泰姆

HD STBM6t嘉泰姆

BT MouseM6t嘉泰姆
PND InstrumentM6t嘉泰姆
Portable InstrumentM6t嘉泰姆
四.下载产品资料PDF文档 M6t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！M6t嘉泰姆

QQ截图20160419174301.jpg M6t嘉泰姆

五,产品封装图 (Package)M6t嘉泰姆

M6t嘉泰姆

六.电路原理图M6t嘉泰姆

M6t嘉泰姆

七,功能概述M6t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:M6t嘉泰姆
PD ≅ IOUT2 x (RP-FET x D+RN-FET x (1-D))M6t嘉泰姆
The temperature rise is given by:M6t嘉泰姆
TR = (PD)(èJA)M6t嘉泰姆
Where PD is the power dissipated by the regulator, D isM6t嘉泰姆
duty cycle of main switchM6t嘉泰姆
D = VOUT/VINM6t嘉泰姆
The èJA is the thermal resistance from the junction of theM6t嘉泰姆
die to the ambient temperature. The junction temperature,M6t嘉泰姆
TJ, is given by:M6t嘉泰姆
TJ = TA + TRM6t嘉泰姆
Where TA is the ambient temperature.
Layout ConsiderationM6t嘉泰姆
For all switching power supplies, the layout is an important step in the design; especially at high peak currentsM6t嘉泰姆
and switching frequencies. If the layout is not carefully done, the regulator might show noise problems and dutyM6t嘉泰姆
cycle jitter.M6t嘉泰姆
1. The input capacitor should be placed close to the VIN and GND. Connecting the capacitor and VIN/GND withM6t嘉泰姆
short and wide trace without any via holes for good input voltage filtering. The distance between VIN/GNDM6t嘉泰姆
to capacitor less than 2mm respectively is recommended.M6t嘉泰姆
2. To minimize copper trace connections that can inject noise into the system, the inductor should be placedM6t嘉泰姆
as close as possible to the SW pin to minimize the noise coupling into other circuits.M6t嘉泰姆
3. The output capacitor should be place closed to converter VOUT and GND.M6t嘉泰姆
4. Since the feedback pin and network is a high impedance circuit the feedback network should be routedM6t嘉泰姆
away from the inductor. The feedback pin and feedback network should be shielded with a ground planeM6t嘉泰姆
or trace to minimize noise coupling into this circuit.M6t嘉泰姆
5. A star ground connection or ground plane minimizes ground shifts and noise is recommended.M6t嘉泰姆
八,相关产品 更多同类产品.......M6t嘉泰姆

Switching Regulator > Buck ConverterM6t嘉泰姆
Part_No M6t嘉泰姆	PackageM6t嘉泰姆	ArchitectuM6t嘉泰姆	No.ofM6t嘉泰姆 PWM M6t嘉泰姆 OutpuM6t嘉泰姆	DriveM6t嘉泰姆 LoutM6t嘉泰姆 (A) M6t嘉泰姆	Vin(V) M6t嘉泰姆		FmaxM6t嘉泰姆 Khz M6t嘉泰姆	Vref M6t嘉泰姆 (V) M6t嘉泰姆	R-Top (milohm) M6t嘉泰姆	R-Sync (milohm) M6t嘉泰姆	Iq (No load) (uA) M6t嘉泰姆
Part_No M6t嘉泰姆	PackageM6t嘉泰姆	ArchitectuM6t嘉泰姆	No.ofM6t嘉泰姆 PWM M6t嘉泰姆 OutpuM6t嘉泰姆	DriveM6t嘉泰姆 LoutM6t嘉泰姆 (A) M6t嘉泰姆	minM6t嘉泰姆	maxM6t嘉泰姆	FmaxM6t嘉泰姆 Khz M6t嘉泰姆	Vref M6t嘉泰姆 (V) M6t嘉泰姆	R-Top (milohm) M6t嘉泰姆	R-Sync (milohm) M6t嘉泰姆	Iq (No load) (uA) M6t嘉泰姆
CXSD62122M6t嘉泰姆	TQFN5x6-28M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	5M6t嘉泰姆	4.5M6t嘉泰姆	26M6t嘉泰姆	380M6t嘉泰姆	0.8M6t嘉泰姆	50M6t嘉泰姆	20M6t嘉泰姆	1000M6t嘉泰姆
CXSD62123M6t嘉泰姆	SOP-8M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	2M6t嘉泰姆	4.5M6t嘉泰姆	26M6t嘉泰姆	380M6t嘉泰姆	0.8M6t嘉泰姆	100M6t嘉泰姆		1000M6t嘉泰姆
CXSD62124M6t嘉泰姆	SOP-8PM6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	4M6t嘉泰姆	4.5M6t嘉泰姆	26M6t嘉泰姆	380M6t嘉泰姆	0.8M6t嘉泰姆	80M6t嘉泰姆		1000M6t嘉泰姆
CXSD62125M6t嘉泰姆	SOT23-5\|TSOT23-5M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆	25M6t嘉泰姆
CXSD62125AM6t嘉泰姆	SOT23-5M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆
CXSD62126M6t嘉泰姆	SOP-8M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	3M6t嘉泰姆	4.3M6t嘉泰姆	14M6t嘉泰姆	500M6t嘉泰姆	0.8M6t嘉泰姆	70M6t嘉泰姆	70M6t嘉泰姆	500M6t嘉泰姆
CXSD62127M6t嘉泰姆	SOP-8PM6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	3M6t嘉泰姆	4.3M6t嘉泰姆	14M6t嘉泰姆	500M6t嘉泰姆	0.8M6t嘉泰姆	55M6t嘉泰姆	45M6t嘉泰姆	500M6t嘉泰姆
CXSD62128BM6t嘉泰姆	TDFN3x3-10M6t嘉泰姆			3M6t嘉泰姆	2.6M6t嘉泰姆	5.5M6t嘉泰姆	2000M6t嘉泰姆	0.8M6t嘉泰姆	110M6t嘉泰姆	110M6t嘉泰姆	460M6t嘉泰姆
CXSD62129M6t嘉泰姆	TDFN3x3-10M6t嘉泰姆	CMM6t嘉泰姆	2M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆	500M6t嘉泰姆
CXSD62129AM6t嘉泰姆	TDFN3x3-10M6t嘉泰姆	CMM6t嘉泰姆	2M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆
CXSD62130M6t嘉泰姆	TDFN2x2-6M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆	25M6t嘉泰姆
CXSD62130AM6t嘉泰姆	TDFN2x2-6M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆
CXSD62131M6t嘉泰姆	TDFN3x3-12M6t嘉泰姆	CMM6t嘉泰姆	2M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆	25M6t嘉泰姆
CXSD62131AM6t嘉泰姆	TDFN3x3-12M6t嘉泰姆	CMM6t嘉泰姆	2M6t嘉泰姆	1M6t嘉泰姆	2.7M6t嘉泰姆	6M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆
CXSD62131CM6t嘉泰姆	TDFN 3x3 12M6t嘉泰姆	CMM6t嘉泰姆	2M6t嘉泰姆	1M6t嘉泰姆	3M6t嘉泰姆	5.5M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆	30M6t嘉泰姆
CXSD62132M6t嘉泰姆	TQFN3x3-20M6t嘉泰姆	CMM6t嘉泰姆	3M6t嘉泰姆	2M6t嘉泰姆	2.9M6t嘉泰姆	5.5M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	-M6t嘉泰姆	-M6t嘉泰姆	300M6t嘉泰姆
CXSD62133M6t嘉泰姆	TDFN2x2-8M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	1M6t嘉泰姆	3.3M6t嘉泰姆	8M6t嘉泰姆	1500M6t嘉泰姆	0.6M6t嘉泰姆	280M6t嘉泰姆	250M6t嘉泰姆	25M6t嘉泰姆
CXSD62134M6t嘉泰姆	SOP-8M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	2M6t嘉泰姆	4.5M6t嘉泰姆	24M6t嘉泰姆	340M6t嘉泰姆	0.925M6t嘉泰姆	110M6t嘉泰姆	110M6t嘉泰姆	1900M6t嘉泰姆
CXSD62135M6t嘉泰姆	SOP-8PM6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	3M6t嘉泰姆	4.5M6t嘉泰姆	24M6t嘉泰姆	340M6t嘉泰姆	0.925M6t嘉泰姆	110M6t嘉泰姆	110M6t嘉泰姆	1900M6t嘉泰姆
CXSD62136M6t嘉泰姆	SOP-8M6t嘉泰姆	CMM6t嘉泰姆	1M6t嘉泰姆	2M6t嘉泰姆	4.5M6t嘉泰姆	24M6t嘉泰姆	340M6t嘉泰姆	0.92M6t嘉泰姆	130M6t嘉泰姆	130M6t嘉泰姆	1900M6t嘉泰姆
M6t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

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