目录xed嘉泰姆

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

一,产品概述(General Description)   xed嘉泰姆

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          The CXSD6277/A/B series are designed to provide a low cost synchronousxed嘉泰姆
Buck regulator for on-board DC to DC con-verter applications. The CXSD6277/A/Bxed嘉泰姆
series together with dual N-channel MOSFETs , provide axed嘉泰姆
low cost solution for such applications. Each device fea-tures an internalxed嘉泰姆
200/400kHz oscillator, Power-On-Reset (POR) for both VCC and VC supplies,xed嘉泰姆
an external pro-grammable soft-start function as well as output under-xed嘉泰姆
voltage detection that latches off the device when an out-put short is detected.xed嘉泰姆
二.产品特点(Features)xed嘉泰姆

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1.)Operating with Single 5V or 12V Inputxed嘉泰姆
2.)Drives N-Channel MOSFETsxed嘉泰姆
3.)Simple Single-Loop Control Designxed嘉泰姆
     Voltage-Mode PWM Controlxed嘉泰姆
     Full 0% to 100% Duty Ratioxed嘉泰姆
     Fast Transient Responsexed嘉泰姆
4.)±2% Output Voltage Accuracy Over Temperaturexed嘉泰姆
5.)Under-Voltage Protection for Outputxed嘉泰姆
6.)200/400kHz Constant Frequency Operationxed嘉泰姆
    200kHz for CXSD6277/A/BBxed嘉泰姆
    400kHz for CXSD6277/A/BAxed嘉泰姆
7.)Small size, 8-PIN Package (SOIC or TSSOP)xed嘉泰姆
8.)Lead Free and Green Devices Available (RoHS Compliant)xed嘉泰姆
三,应用范围 (Applications)xed嘉泰姆

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Graphics Cardsxed嘉泰姆
DDR Memory Power Supplyxed嘉泰姆
DDR Memory Termination Voltagexed嘉泰姆
Low-Voltage Distributed Power Suppliesxed嘉泰姆
四.下载产品资料PDF文档 xed嘉泰姆

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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！xed嘉泰姆

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五,产品封装图 (Package)xed嘉泰姆
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FB (Pin 1)xed嘉泰姆
Connect this pin to the output (VOUT) of the PWM con-verter via an external resistor divider to provide a voltagexed嘉泰姆
feedback path for the converter. The output voltage set by the resistor divider is determined using the following xed嘉泰姆

for-where ROUT is the resistor connected from VOUT to FB, and RGND is the resistor connected from FB to xed嘉泰姆

ground.The voltage at this pin is also monitored for Under-Volt-age protection.xed嘉泰姆
VCC (Pin 2)xed嘉泰姆
Connect this pin to input voltage from 5V to 20V. This pin provides the bias for the control circuitry and the xed嘉泰姆

power MOSFET driver (LDRV). The voltage at this pin is monitored for Power-On-Reset (POR) purpose.xed嘉泰姆
LDRV (Pin 3)xed嘉泰姆
Connect this pin to the gate of the low-side power MOSFET. This pin provides the gate drive for the MOSFET.xed嘉泰姆
GND (Pin 4)xed嘉泰姆
Signal and power ground for the IC. All voltage levels are measured with respect to this pin.xed嘉泰姆
HDRV (Pin 5)xed嘉泰姆
Connect this pin to the gate of the high-side power MOSFET. This pin provides the gate drive for the MOSFET.xed嘉泰姆
VC (Pin 6)xed嘉泰姆
This pin provides bias voltage to the high-side MOSFET driver. A bootstrap circuit may be used to pump a bootxed嘉泰姆
voltage for enforcing the driving capability of the gate driver and improving the performance of the MOSFET.xed嘉泰姆
COMP (Pin 7)xed嘉泰姆
This pin is the output of the error amplifier. Add an exter-nal resistor-capacitor network to provide a loop compen-xed嘉泰姆
sation for the PWM converter.xed嘉泰姆

SS (Pin 8)xed嘉泰姆
Connect a capacitor from this pin to ground.This capacitor,along with an internal 20μA current source, sets the soft-xed嘉泰姆
start interval of the PWM converter and prevents the out-puts from overshoot as well as limits the input current.xed嘉泰姆

Pull this pin below 0.5V can shutdown the converter.xed嘉泰姆
六.电路原理图xed嘉泰姆

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七,功能概述xed嘉泰姆

Profile Featurexed嘉泰姆	Sn-Pb Eutectic Assemblyxed嘉泰姆	Pb-Free Assemblyxed嘉泰姆
Average ramp-up ratexed嘉泰姆 (TL to TP)xed嘉泰姆	3°C/second max.xed嘉泰姆	3°C/second max.xed嘉泰姆
Preheatxed嘉泰姆 - Temperature Min (Tsmin)xed嘉泰姆 - Temperature Max (Tsmax)xed嘉泰姆 - Time (min to max) (ts)xed嘉泰姆	100°Cxed嘉泰姆 150°Cxed嘉泰姆 60-120 secondsxed嘉泰姆	150°Cxed嘉泰姆 200°Cxed嘉泰姆 60-180 secondsxed嘉泰姆
Time maintained above:xed嘉泰姆 - Temperature (TL)xed嘉泰姆 - Time (tL)xed嘉泰姆	183°Cxed嘉泰姆 60-150 secondsxed嘉泰姆	217°Cxed嘉泰姆 60-150 secondsxed嘉泰姆
Peak/Classification Temperature (Tp)xed嘉泰姆	See table 1xed嘉泰姆	See table 2xed嘉泰姆
Time within 5°C of actualxed嘉泰姆 Peak Temperature (tp)xed嘉泰姆	10-30 secondsxed嘉泰姆	20-40 secondsxed嘉泰姆
Ramp-down Ratexed嘉泰姆	6°C/second max.xed嘉泰姆	6°C/second max.xed嘉泰姆
Time 25°C to Peak Temperaturexed嘉泰姆	6 minutes max.xed嘉泰姆	8 minutes max.xed嘉泰姆

八,相关产品                         更多同类产品...... xed嘉泰姆

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Switching Regulator >   Buck Controllerxed嘉泰姆
Part_No xed嘉泰姆	Package xed嘉泰姆	Archixed嘉泰姆 tectuxed嘉泰姆	Phasexed嘉泰姆	No.ofxed嘉泰姆 PWMxed嘉泰姆 Outputxed嘉泰姆	Output xed嘉泰姆 Currentxed嘉泰姆 (A) xed嘉泰姆	Inputxed嘉泰姆 Voltage (V) xed嘉泰姆		Referencexed嘉泰姆 Voltagexed嘉泰姆 (V) xed嘉泰姆	Bias xed嘉泰姆 Voltagexed嘉泰姆 (V) xed嘉泰姆	Quiescentxed嘉泰姆 Currentxed嘉泰姆 (uA) xed嘉泰姆
						minxed嘉泰姆	maxxed嘉泰姆
CXSD6273xed嘉泰姆	SOP-14xed嘉泰姆 QSOP-16xed嘉泰姆 QFN4x4-16xed嘉泰姆	VM    xed嘉泰姆	1   xed嘉泰姆	1     xed嘉泰姆	30xed嘉泰姆	2.9    xed嘉泰姆	13.2xed嘉泰姆	0.9xed嘉泰姆	12     xed嘉泰姆	8000xed嘉泰姆
CXSD6274xed嘉泰姆	SOP-8xed嘉泰姆	VM   xed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	20xed嘉泰姆	2.9  xed嘉泰姆	13.2 xed嘉泰姆	0.8xed嘉泰姆	12xed嘉泰姆	5000xed嘉泰姆
CXSD6274Cxed嘉泰姆	SOP-8xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	20xed嘉泰姆	2.9xed嘉泰姆	13.2xed嘉泰姆	0.8xed嘉泰姆	12xed嘉泰姆	5000xed嘉泰姆
CXSD6275xed嘉泰姆	QFN4x4-24xed嘉泰姆	VMxed嘉泰姆	2xed嘉泰姆	1xed嘉泰姆	60xed嘉泰姆	3.1xed嘉泰姆	13.2xed嘉泰姆	0.6xed嘉泰姆	12xed嘉泰姆	5000xed嘉泰姆
CXSD6276xed嘉泰姆	SOP-8xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	20xed嘉泰姆	2.2xed嘉泰姆	13.2xed嘉泰姆	0.8xed嘉泰姆	5~12xed嘉泰姆	2100xed嘉泰姆
CXSD6276Axed嘉泰姆	SOP-8xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	20xed嘉泰姆	2.2xed嘉泰姆	13.2xed嘉泰姆	0.8xed嘉泰姆	5~12xed嘉泰姆	2100xed嘉泰姆
CXSD6277/A/Bxed嘉泰姆	SOP8|TSSOP8xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	5xed嘉泰姆	5xed嘉泰姆	13.2xed嘉泰姆	1.25|0.8xed嘉泰姆	5~12xed嘉泰姆	3000xed嘉泰姆
CXSD6278xed嘉泰姆	SOP-8xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	10xed嘉泰姆	3.3xed嘉泰姆	5.5xed嘉泰姆	0.8xed嘉泰姆	5xed嘉泰姆	2100xed嘉泰姆
CXSD6279Bxed嘉泰姆	SOP-14xed嘉泰姆	VM   xed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	10xed嘉泰姆	5xed嘉泰姆	13.2xed嘉泰姆	0.8xed嘉泰姆	12xed嘉泰姆	2000xed嘉泰姆
CXSD6280xed嘉泰姆	TSSOP-24xed嘉泰姆 |QFN5x5-32xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	2xed嘉泰姆	20xed嘉泰姆	5xed嘉泰姆	13.2xed嘉泰姆	0.6xed嘉泰姆	5~12xed嘉泰姆	4000xed嘉泰姆
CXSD6281Nxed嘉泰姆	SOP14xed嘉泰姆 QSOP16xed嘉泰姆 QFN-16xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	30xed嘉泰姆	2.9xed嘉泰姆	13.2xed嘉泰姆	0.9xed嘉泰姆	12xed嘉泰姆	4000xed嘉泰姆
CXSD6282xed嘉泰姆	SOP-14xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	30xed嘉泰姆	2.2xed嘉泰姆	13.2xed嘉泰姆	0.6xed嘉泰姆	12xed嘉泰姆	5000xed嘉泰姆
CXSD6282Axed嘉泰姆	SOP-14xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	30xed嘉泰姆	2.2xed嘉泰姆	13.2xed嘉泰姆	0.6xed嘉泰姆	12xed嘉泰姆	5000xed嘉泰姆
CXSD6283xed嘉泰姆	SOP-14xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	25xed嘉泰姆	2.2xed嘉泰姆	13.2xed嘉泰姆	0.8xed嘉泰姆	12xed嘉泰姆	5000xed嘉泰姆
CXSD6284/Axed嘉泰姆	LQFP7x7 48xed嘉泰姆 TQFN7x7-48xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	6xed嘉泰姆	0.015xed嘉泰姆	1.4xed嘉泰姆	6.5xed嘉泰姆	-xed嘉泰姆	5xed嘉泰姆	1800xed嘉泰姆
CXSD6285xed嘉泰姆	TSSOP-24Pxed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	2xed嘉泰姆	20xed嘉泰姆	2.97xed嘉泰姆	5.5xed嘉泰姆	0.8xed嘉泰姆	5~12xed嘉泰姆	5000xed嘉泰姆
CXSD6286xed嘉泰姆	SOP-14xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	10xed嘉泰姆	5xed嘉泰姆	13.2xed嘉泰姆	0.8xed嘉泰姆	12xed嘉泰姆	3000xed嘉泰姆
CXSD6287xed嘉泰姆	SOP-8-P|DIP-8xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	1xed嘉泰姆	30xed嘉泰姆	2.9xed嘉泰姆	13.2xed嘉泰姆	1.2xed嘉泰姆	12xed嘉泰姆	3000xed嘉泰姆
CXSD6288xed嘉泰姆	SSOP28xed嘉泰姆 QFN4x4-24xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	2xed嘉泰姆	20xed嘉泰姆	5xed嘉泰姆	24xed嘉泰姆	0.9xed嘉泰姆	5xed嘉泰姆	1200xed嘉泰姆
CXSD6289xed嘉泰姆	SOP-20xed嘉泰姆	VMxed嘉泰姆	1xed嘉泰姆	2xed嘉泰姆	20xed嘉泰姆	2.2xed嘉泰姆	13.2xed嘉泰姆

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