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

发表时间：2020-04-25浏览次数：16

目录MgM嘉泰姆

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

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

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

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

The CXSD62125 CXSD62125A is available in SOT-23-5/TSOT-23-5A packages.MgM嘉泰姆
二.产品特点(Features)MgM嘉泰姆
1A Output CurrentMgM嘉泰姆
Wide 2.7V~6.0V Input VoltageMgM嘉泰姆
Fixed 1.5MHz Switching FrequencyMgM嘉泰姆
Low Dropout Operating at 100% Duty CycleMgM嘉泰姆
25μA Quiescent CurrentMgM嘉泰姆
Integrate Synchronous RectifierMgM嘉泰姆
0.6V Reference VoltageMgM嘉泰姆
Current-Mode Operation with InternalMgM嘉泰姆
CompensationMgM嘉泰姆
- Stable with Ceramic Output CapacitorsMgM嘉泰姆
- Fast Line Transient ResponseMgM嘉泰姆
Short-Circuit ProtectionMgM嘉泰姆
Over-Temperature Protection with HysteresisMgM嘉泰姆
Available in SOT-23-5/TSOT-23-5A PackagesMgM嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)MgM嘉泰姆
三,应用范围 (Applications)MgM嘉泰姆

HD STBMgM嘉泰姆

BT MouseMgM嘉泰姆
PND InstrumentMgM嘉泰姆
Portable InstrumentMgM嘉泰姆
四.下载产品资料PDF文档 MgM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！MgM嘉泰姆

QQ截图20160419174301.jpg MgM嘉泰姆

五,产品封装图 (Package)MgM嘉泰姆

MgM嘉泰姆

六.电路原理图MgM嘉泰姆

MgM嘉泰姆

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

Switching Regulator > Buck ConverterMgM嘉泰姆
Part_No MgM嘉泰姆	PackageMgM嘉泰姆	ArchitectuMgM嘉泰姆	No.ofMgM嘉泰姆 PWM MgM嘉泰姆 OutpuMgM嘉泰姆	DriveMgM嘉泰姆 LoutMgM嘉泰姆 (A) MgM嘉泰姆	Vin(V) MgM嘉泰姆		FmaxMgM嘉泰姆 Khz MgM嘉泰姆	Vref MgM嘉泰姆 (V) MgM嘉泰姆	R-Top (milohm) MgM嘉泰姆	R-Sync (milohm) MgM嘉泰姆	Iq (No load) (uA) MgM嘉泰姆
Part_No MgM嘉泰姆	PackageMgM嘉泰姆	ArchitectuMgM嘉泰姆	No.ofMgM嘉泰姆 PWM MgM嘉泰姆 OutpuMgM嘉泰姆	DriveMgM嘉泰姆 LoutMgM嘉泰姆 (A) MgM嘉泰姆	minMgM嘉泰姆	maxMgM嘉泰姆	FmaxMgM嘉泰姆 Khz MgM嘉泰姆	Vref MgM嘉泰姆 (V) MgM嘉泰姆	R-Top (milohm) MgM嘉泰姆	R-Sync (milohm) MgM嘉泰姆	Iq (No load) (uA) MgM嘉泰姆
CXSD62122MgM嘉泰姆	TQFN5x6-28MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	5MgM嘉泰姆	4.5MgM嘉泰姆	26MgM嘉泰姆	380MgM嘉泰姆	0.8MgM嘉泰姆	50MgM嘉泰姆	20MgM嘉泰姆	1000MgM嘉泰姆
CXSD62123MgM嘉泰姆	SOP-8MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	2MgM嘉泰姆	4.5MgM嘉泰姆	26MgM嘉泰姆	380MgM嘉泰姆	0.8MgM嘉泰姆	100MgM嘉泰姆		1000MgM嘉泰姆
CXSD62124MgM嘉泰姆	SOP-8PMgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	4MgM嘉泰姆	4.5MgM嘉泰姆	26MgM嘉泰姆	380MgM嘉泰姆	0.8MgM嘉泰姆	80MgM嘉泰姆		1000MgM嘉泰姆
CXSD62125MgM嘉泰姆	SOT23-5\|TSOT23-5MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆	25MgM嘉泰姆
CXSD62125AMgM嘉泰姆	SOT23-5MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆
CXSD62126MgM嘉泰姆	SOP-8MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	3MgM嘉泰姆	4.3MgM嘉泰姆	14MgM嘉泰姆	500MgM嘉泰姆	0.8MgM嘉泰姆	70MgM嘉泰姆	70MgM嘉泰姆	500MgM嘉泰姆
CXSD62127MgM嘉泰姆	SOP-8PMgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	3MgM嘉泰姆	4.3MgM嘉泰姆	14MgM嘉泰姆	500MgM嘉泰姆	0.8MgM嘉泰姆	55MgM嘉泰姆	45MgM嘉泰姆	500MgM嘉泰姆
CXSD62128BMgM嘉泰姆	TDFN3x3-10MgM嘉泰姆			3MgM嘉泰姆	2.6MgM嘉泰姆	5.5MgM嘉泰姆	2000MgM嘉泰姆	0.8MgM嘉泰姆	110MgM嘉泰姆	110MgM嘉泰姆	460MgM嘉泰姆
CXSD62129MgM嘉泰姆	TDFN3x3-10MgM嘉泰姆	CMMgM嘉泰姆	2MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆	500MgM嘉泰姆
CXSD62129AMgM嘉泰姆	TDFN3x3-10MgM嘉泰姆	CMMgM嘉泰姆	2MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆
CXSD62130MgM嘉泰姆	TDFN2x2-6MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆	25MgM嘉泰姆
CXSD62130AMgM嘉泰姆	TDFN2x2-6MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆
CXSD62131MgM嘉泰姆	TDFN3x3-12MgM嘉泰姆	CMMgM嘉泰姆	2MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆	25MgM嘉泰姆
CXSD62131AMgM嘉泰姆	TDFN3x3-12MgM嘉泰姆	CMMgM嘉泰姆	2MgM嘉泰姆	1MgM嘉泰姆	2.7MgM嘉泰姆	6MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆
CXSD62131CMgM嘉泰姆	TDFN 3x3 12MgM嘉泰姆	CMMgM嘉泰姆	2MgM嘉泰姆	1MgM嘉泰姆	3MgM嘉泰姆	5.5MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆	30MgM嘉泰姆
CXSD62132MgM嘉泰姆	TQFN3x3-20MgM嘉泰姆	CMMgM嘉泰姆	3MgM嘉泰姆	2MgM嘉泰姆	2.9MgM嘉泰姆	5.5MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	-MgM嘉泰姆	-MgM嘉泰姆	300MgM嘉泰姆
CXSD62133MgM嘉泰姆	TDFN2x2-8MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	1MgM嘉泰姆	3.3MgM嘉泰姆	8MgM嘉泰姆	1500MgM嘉泰姆	0.6MgM嘉泰姆	280MgM嘉泰姆	250MgM嘉泰姆	25MgM嘉泰姆
CXSD62134MgM嘉泰姆	SOP-8MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	2MgM嘉泰姆	4.5MgM嘉泰姆	24MgM嘉泰姆	340MgM嘉泰姆	0.925MgM嘉泰姆	110MgM嘉泰姆	110MgM嘉泰姆	1900MgM嘉泰姆
CXSD62135MgM嘉泰姆	SOP-8PMgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	3MgM嘉泰姆	4.5MgM嘉泰姆	24MgM嘉泰姆	340MgM嘉泰姆	0.925MgM嘉泰姆	110MgM嘉泰姆	110MgM嘉泰姆	1900MgM嘉泰姆
CXSD62136MgM嘉泰姆	SOP-8MgM嘉泰姆	CMMgM嘉泰姆	1MgM嘉泰姆	2MgM嘉泰姆	4.5MgM嘉泰姆	24MgM嘉泰姆	340MgM嘉泰姆	0.92MgM嘉泰姆	130MgM嘉泰姆	130MgM嘉泰姆	1900MgM嘉泰姆
MgM嘉泰姆

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