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

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发表时间：2020-04-25浏览次数：185

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

目录d2W嘉泰姆

1.产品概述         2.产品特点d2W嘉泰姆
3.应用范围       4.下载产品资料PDF文档 d2W嘉泰姆
5.产品封装图                     6.电路原理图             d2W嘉泰姆
7.功能概述       8.相关产品d2W嘉泰姆

一,产品概述(General Description) d2W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 d2W嘉泰姆

applications. 100%duty cycle provides low dropout operation, extending battery d2W嘉泰姆

life in portable electrical devices.The internally fixed 1.5MHz operating frequencyd2W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.d2W嘉泰姆

The CXSD62125 CXSD62125A is available in SOT-23-5/TSOT-23-5A packages.d2W嘉泰姆
二.产品特点(Features)d2W嘉泰姆
1A Output Currentd2W嘉泰姆
Wide 2.7V~6.0V Input Voltaged2W嘉泰姆
Fixed 1.5MHz Switching Frequencyd2W嘉泰姆
Low Dropout Operating at 100% Duty Cycled2W嘉泰姆
25μA Quiescent Currentd2W嘉泰姆
Integrate Synchronous Rectifierd2W嘉泰姆
0.6V Reference Voltaged2W嘉泰姆
Current-Mode Operation with Internald2W嘉泰姆
Compensationd2W嘉泰姆
- Stable with Ceramic Output Capacitorsd2W嘉泰姆
- Fast Line Transient Responsed2W嘉泰姆
Short-Circuit Protectiond2W嘉泰姆
Over-Temperature Protection with Hysteresisd2W嘉泰姆
Available in SOT-23-5/TSOT-23-5A Packagesd2W嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)d2W嘉泰姆
三,应用范围 (Applications)d2W嘉泰姆

HD STBd2W嘉泰姆

BT Moused2W嘉泰姆
PND Instrumentd2W嘉泰姆
Portable Instrumentd2W嘉泰姆
四.下载产品资料PDF文档 d2W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！d2W嘉泰姆

QQ截图20160419174301.jpg d2W嘉泰姆

五,产品封装图 (Package)d2W嘉泰姆

d2W嘉泰姆

六.电路原理图d2W嘉泰姆

d2W嘉泰姆

七,功能概述d2W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:d2W嘉泰姆
PD ≅ IOUT2 x (RP-FET x D+RN-FET x (1-D))d2W嘉泰姆
The temperature rise is given by:d2W嘉泰姆
TR = (PD)(èJA)d2W嘉泰姆
Where PD is the power dissipated by the regulator, D isd2W嘉泰姆
duty cycle of main switchd2W嘉泰姆
D = VOUT/VINd2W嘉泰姆
The èJA is the thermal resistance from the junction of thed2W嘉泰姆
die to the ambient temperature. The junction temperature,d2W嘉泰姆
TJ, is given by:d2W嘉泰姆
TJ = TA + TRd2W嘉泰姆
Where TA is the ambient temperature.
Layout Considerationd2W嘉泰姆
For all switching power supplies, the layout is an important step in the design; especially at high peak currentsd2W嘉泰姆
and switching frequencies. If the layout is not carefully done, the regulator might show noise problems and dutyd2W嘉泰姆
cycle jitter.d2W嘉泰姆
1. The input capacitor should be placed close to the VIN and GND. Connecting the capacitor and VIN/GND withd2W嘉泰姆
short and wide trace without any via holes for good input voltage filtering. The distance between VIN/GNDd2W嘉泰姆
to capacitor less than 2mm respectively is recommended.d2W嘉泰姆
2. To minimize copper trace connections that can inject noise into the system, the inductor should be placedd2W嘉泰姆
as close as possible to the SW pin to minimize the noise coupling into other circuits.d2W嘉泰姆
3. The output capacitor should be place closed to converter VOUT and GND.d2W嘉泰姆
4. Since the feedback pin and network is a high impedance circuit the feedback network should be routedd2W嘉泰姆
away from the inductor. The feedback pin and feedback network should be shielded with a ground planed2W嘉泰姆
or trace to minimize noise coupling into this circuit.d2W嘉泰姆
5. A star ground connection or ground plane minimizes ground shifts and noise is recommended.d2W嘉泰姆
八,相关产品 更多同类产品.......d2W嘉泰姆

Switching Regulator > Buck Converterd2W嘉泰姆
Part_No d2W嘉泰姆	Packaged2W嘉泰姆	Architectud2W嘉泰姆	No.ofd2W嘉泰姆 PWM d2W嘉泰姆 Outpud2W嘉泰姆	Drived2W嘉泰姆 Loutd2W嘉泰姆 (A) d2W嘉泰姆	Vin(V) d2W嘉泰姆		Fmaxd2W嘉泰姆 Khz d2W嘉泰姆	Vref d2W嘉泰姆 (V) d2W嘉泰姆	R-Top (milohm) d2W嘉泰姆	R-Sync (milohm) d2W嘉泰姆	Iq (No load) (uA) d2W嘉泰姆
Part_No d2W嘉泰姆	Packaged2W嘉泰姆	Architectud2W嘉泰姆	No.ofd2W嘉泰姆 PWM d2W嘉泰姆 Outpud2W嘉泰姆	Drived2W嘉泰姆 Loutd2W嘉泰姆 (A) d2W嘉泰姆	mind2W嘉泰姆	maxd2W嘉泰姆	Fmaxd2W嘉泰姆 Khz d2W嘉泰姆	Vref d2W嘉泰姆 (V) d2W嘉泰姆	R-Top (milohm) d2W嘉泰姆	R-Sync (milohm) d2W嘉泰姆	Iq (No load) (uA) d2W嘉泰姆
CXSD62122d2W嘉泰姆	TQFN5x6-28d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	5d2W嘉泰姆	4.5d2W嘉泰姆	26d2W嘉泰姆	380d2W嘉泰姆	0.8d2W嘉泰姆	50d2W嘉泰姆	20d2W嘉泰姆	1000d2W嘉泰姆
CXSD62123d2W嘉泰姆	SOP-8d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	2d2W嘉泰姆	4.5d2W嘉泰姆	26d2W嘉泰姆	380d2W嘉泰姆	0.8d2W嘉泰姆	100d2W嘉泰姆		1000d2W嘉泰姆
CXSD62124d2W嘉泰姆	SOP-8Pd2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	4d2W嘉泰姆	4.5d2W嘉泰姆	26d2W嘉泰姆	380d2W嘉泰姆	0.8d2W嘉泰姆	80d2W嘉泰姆		1000d2W嘉泰姆
CXSD62125d2W嘉泰姆	SOT23-5\|TSOT23-5d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆	25d2W嘉泰姆
CXSD62125Ad2W嘉泰姆	SOT23-5d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆
CXSD62126d2W嘉泰姆	SOP-8d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	3d2W嘉泰姆	4.3d2W嘉泰姆	14d2W嘉泰姆	500d2W嘉泰姆	0.8d2W嘉泰姆	70d2W嘉泰姆	70d2W嘉泰姆	500d2W嘉泰姆
CXSD62127d2W嘉泰姆	SOP-8Pd2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	3d2W嘉泰姆	4.3d2W嘉泰姆	14d2W嘉泰姆	500d2W嘉泰姆	0.8d2W嘉泰姆	55d2W嘉泰姆	45d2W嘉泰姆	500d2W嘉泰姆
CXSD62128Bd2W嘉泰姆	TDFN3x3-10d2W嘉泰姆			3d2W嘉泰姆	2.6d2W嘉泰姆	5.5d2W嘉泰姆	2000d2W嘉泰姆	0.8d2W嘉泰姆	110d2W嘉泰姆	110d2W嘉泰姆	460d2W嘉泰姆
CXSD62129d2W嘉泰姆	TDFN3x3-10d2W嘉泰姆	CMd2W嘉泰姆	2d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆	500d2W嘉泰姆
CXSD62129Ad2W嘉泰姆	TDFN3x3-10d2W嘉泰姆	CMd2W嘉泰姆	2d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆
CXSD62130d2W嘉泰姆	TDFN2x2-6d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆	25d2W嘉泰姆
CXSD62130Ad2W嘉泰姆	TDFN2x2-6d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆
CXSD62131d2W嘉泰姆	TDFN3x3-12d2W嘉泰姆	CMd2W嘉泰姆	2d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆	25d2W嘉泰姆
CXSD62131Ad2W嘉泰姆	TDFN3x3-12d2W嘉泰姆	CMd2W嘉泰姆	2d2W嘉泰姆	1d2W嘉泰姆	2.7d2W嘉泰姆	6d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆
CXSD62131Cd2W嘉泰姆	TDFN 3x3 12d2W嘉泰姆	CMd2W嘉泰姆	2d2W嘉泰姆	1d2W嘉泰姆	3d2W嘉泰姆	5.5d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆	30d2W嘉泰姆
CXSD62132d2W嘉泰姆	TQFN3x3-20d2W嘉泰姆	CMd2W嘉泰姆	3d2W嘉泰姆	2d2W嘉泰姆	2.9d2W嘉泰姆	5.5d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	-d2W嘉泰姆	-d2W嘉泰姆	300d2W嘉泰姆
CXSD62133d2W嘉泰姆	TDFN2x2-8d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	1d2W嘉泰姆	3.3d2W嘉泰姆	8d2W嘉泰姆	1500d2W嘉泰姆	0.6d2W嘉泰姆	280d2W嘉泰姆	250d2W嘉泰姆	25d2W嘉泰姆
CXSD62134d2W嘉泰姆	SOP-8d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	2d2W嘉泰姆	4.5d2W嘉泰姆	24d2W嘉泰姆	340d2W嘉泰姆	0.925d2W嘉泰姆	110d2W嘉泰姆	110d2W嘉泰姆	1900d2W嘉泰姆
CXSD62135d2W嘉泰姆	SOP-8Pd2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	3d2W嘉泰姆	4.5d2W嘉泰姆	24d2W嘉泰姆	340d2W嘉泰姆	0.925d2W嘉泰姆	110d2W嘉泰姆	110d2W嘉泰姆	1900d2W嘉泰姆
CXSD62136d2W嘉泰姆	SOP-8d2W嘉泰姆	CMd2W嘉泰姆	1d2W嘉泰姆	2d2W嘉泰姆	4.5d2W嘉泰姆	24d2W嘉泰姆	340d2W嘉泰姆	0.92d2W嘉泰姆	130d2W嘉泰姆	130d2W嘉泰姆	1900d2W嘉泰姆
d2W嘉泰姆

上一篇：4A26V380kHz异步降压转换器CXSD62124 80mW P沟道MOSFET 输出电流调节自动PSM/PWM模式操作中的输出电压

下一篇：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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