目录b3T嘉泰姆

1.产品概述                       2.产品特点b3T嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 b3T嘉泰姆
5.产品封装图                     6.电路原理图                   b3T嘉泰姆
7.功能概述                        8.相关产品

一,产品概述(General Description)   b3T嘉泰姆

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          The CXSD6277/A/B series are designed to provide a low cost synchronousb3T嘉泰姆
Buck regulator for on-board DC to DC con-verter applications. The CXSD6277/A/Bb3T嘉泰姆
series together with dual N-channel MOSFETs , provide ab3T嘉泰姆
low cost solution for such applications. Each device fea-tures an internalb3T嘉泰姆
200/400kHz oscillator, Power-On-Reset (POR) for both VCC and VC supplies,b3T嘉泰姆
an external pro-grammable soft-start function as well as output under-b3T嘉泰姆
voltage detection that latches off the device when an out-put short is detected.b3T嘉泰姆
二.产品特点(Features)b3T嘉泰姆

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1.)Operating with Single 5V or 12V Inputb3T嘉泰姆
2.)Drives N-Channel MOSFETsb3T嘉泰姆
3.)Simple Single-Loop Control Designb3T嘉泰姆
     Voltage-Mode PWM Controlb3T嘉泰姆
     Full 0% to 100% Duty Ratiob3T嘉泰姆
     Fast Transient Responseb3T嘉泰姆
4.)±2% Output Voltage Accuracy Over Temperatureb3T嘉泰姆
5.)Under-Voltage Protection for Outputb3T嘉泰姆
6.)200/400kHz Constant Frequency Operationb3T嘉泰姆
    200kHz for CXSD6277/A/BBb3T嘉泰姆
    400kHz for CXSD6277/A/BAb3T嘉泰姆
7.)Small size, 8-PIN Package (SOIC or TSSOP)b3T嘉泰姆
8.)Lead Free and Green Devices Available (RoHS Compliant)b3T嘉泰姆
三,应用范围 (Applications)b3T嘉泰姆

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Graphics Cardsb3T嘉泰姆
DDR Memory Power Supplyb3T嘉泰姆
DDR Memory Termination Voltageb3T嘉泰姆
Low-Voltage Distributed Power Suppliesb3T嘉泰姆
四.下载产品资料PDF文档 b3T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！b3T嘉泰姆

 b3T嘉泰姆

五,产品封装图 (Package)b3T嘉泰姆
b3T嘉泰姆
FB (Pin 1)b3T嘉泰姆
Connect this pin to the output (VOUT) of the PWM con-verter via an external resistor divider to provide a voltageb3T嘉泰姆
feedback path for the converter. The output voltage set by the resistor divider is determined using the following b3T嘉泰姆

for-where ROUT is the resistor connected from VOUT to FB, and RGND is the resistor connected from FB to b3T嘉泰姆

ground.The voltage at this pin is also monitored for Under-Volt-age protection.b3T嘉泰姆
VCC (Pin 2)b3T嘉泰姆
Connect this pin to input voltage from 5V to 20V. This pin provides the bias for the control circuitry and the b3T嘉泰姆

power MOSFET driver (LDRV). The voltage at this pin is monitored for Power-On-Reset (POR) purpose.b3T嘉泰姆
LDRV (Pin 3)b3T嘉泰姆
Connect this pin to the gate of the low-side power MOSFET. This pin provides the gate drive for the MOSFET.b3T嘉泰姆
GND (Pin 4)b3T嘉泰姆
Signal and power ground for the IC. All voltage levels are measured with respect to this pin.b3T嘉泰姆
HDRV (Pin 5)b3T嘉泰姆
Connect this pin to the gate of the high-side power MOSFET. This pin provides the gate drive for the MOSFET.b3T嘉泰姆
VC (Pin 6)b3T嘉泰姆
This pin provides bias voltage to the high-side MOSFET driver. A bootstrap circuit may be used to pump a bootb3T嘉泰姆
voltage for enforcing the driving capability of the gate driver and improving the performance of the MOSFET.b3T嘉泰姆
COMP (Pin 7)b3T嘉泰姆
This pin is the output of the error amplifier. Add an exter-nal resistor-capacitor network to provide a loop compen-b3T嘉泰姆
sation for the PWM converter.b3T嘉泰姆

SS (Pin 8)b3T嘉泰姆
Connect a capacitor from this pin to ground.This capacitor,along with an internal 20μA current source, sets the soft-b3T嘉泰姆
start interval of the PWM converter and prevents the out-puts from overshoot as well as limits the input current.b3T嘉泰姆

Pull this pin below 0.5V can shutdown the converter.b3T嘉泰姆
六.电路原理图b3T嘉泰姆

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b3T嘉泰姆
七,功能概述b3T嘉泰姆

Profile Featureb3T嘉泰姆	Sn-Pb Eutectic Assemblyb3T嘉泰姆	Pb-Free Assemblyb3T嘉泰姆
Average ramp-up rateb3T嘉泰姆 (TL to TP)b3T嘉泰姆	3°C/second max.b3T嘉泰姆	3°C/second max.b3T嘉泰姆
Preheatb3T嘉泰姆 - Temperature Min (Tsmin)b3T嘉泰姆 - Temperature Max (Tsmax)b3T嘉泰姆 - Time (min to max) (ts)b3T嘉泰姆	100°Cb3T嘉泰姆 150°Cb3T嘉泰姆 60-120 secondsb3T嘉泰姆	150°Cb3T嘉泰姆 200°Cb3T嘉泰姆 60-180 secondsb3T嘉泰姆
Time maintained above:b3T嘉泰姆 - Temperature (TL)b3T嘉泰姆 - Time (tL)b3T嘉泰姆	183°Cb3T嘉泰姆 60-150 secondsb3T嘉泰姆	217°Cb3T嘉泰姆 60-150 secondsb3T嘉泰姆
Peak/Classification Temperature (Tp)b3T嘉泰姆	See table 1b3T嘉泰姆	See table 2b3T嘉泰姆
Time within 5°C of actualb3T嘉泰姆 Peak Temperature (tp)b3T嘉泰姆	10-30 secondsb3T嘉泰姆	20-40 secondsb3T嘉泰姆
Ramp-down Rateb3T嘉泰姆	6°C/second max.b3T嘉泰姆	6°C/second max.b3T嘉泰姆
Time 25°C to Peak Temperatureb3T嘉泰姆	6 minutes max.b3T嘉泰姆	8 minutes max.b3T嘉泰姆

八,相关产品                         更多同类产品...... b3T嘉泰姆

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Switching Regulator >   Buck Controllerb3T嘉泰姆
Part_No b3T嘉泰姆	Package b3T嘉泰姆	Archib3T嘉泰姆 tectub3T嘉泰姆	Phaseb3T嘉泰姆	No.ofb3T嘉泰姆 PWMb3T嘉泰姆 Outputb3T嘉泰姆	Output b3T嘉泰姆 Currentb3T嘉泰姆 (A) b3T嘉泰姆	Inputb3T嘉泰姆 Voltage (V) b3T嘉泰姆		Referenceb3T嘉泰姆 Voltageb3T嘉泰姆 (V) b3T嘉泰姆	Bias b3T嘉泰姆 Voltageb3T嘉泰姆 (V) b3T嘉泰姆	Quiescentb3T嘉泰姆 Currentb3T嘉泰姆 (uA) b3T嘉泰姆
						minb3T嘉泰姆	maxb3T嘉泰姆
CXSD6273b3T嘉泰姆	SOP-14b3T嘉泰姆 QSOP-16b3T嘉泰姆 QFN4x4-16b3T嘉泰姆	VM    b3T嘉泰姆	1   b3T嘉泰姆	1     b3T嘉泰姆	30b3T嘉泰姆	2.9    b3T嘉泰姆	13.2b3T嘉泰姆	0.9b3T嘉泰姆	12     b3T嘉泰姆	8000b3T嘉泰姆
CXSD6274b3T嘉泰姆	SOP-8b3T嘉泰姆	VM   b3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	20b3T嘉泰姆	2.9  b3T嘉泰姆	13.2 b3T嘉泰姆	0.8b3T嘉泰姆	12b3T嘉泰姆	5000b3T嘉泰姆
CXSD6274Cb3T嘉泰姆	SOP-8b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	20b3T嘉泰姆	2.9b3T嘉泰姆	13.2b3T嘉泰姆	0.8b3T嘉泰姆	12b3T嘉泰姆	5000b3T嘉泰姆
CXSD6275b3T嘉泰姆	QFN4x4-24b3T嘉泰姆	VMb3T嘉泰姆	2b3T嘉泰姆	1b3T嘉泰姆	60b3T嘉泰姆	3.1b3T嘉泰姆	13.2b3T嘉泰姆	0.6b3T嘉泰姆	12b3T嘉泰姆	5000b3T嘉泰姆
CXSD6276b3T嘉泰姆	SOP-8b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	20b3T嘉泰姆	2.2b3T嘉泰姆	13.2b3T嘉泰姆	0.8b3T嘉泰姆	5~12b3T嘉泰姆	2100b3T嘉泰姆
CXSD6276Ab3T嘉泰姆	SOP-8b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	20b3T嘉泰姆	2.2b3T嘉泰姆	13.2b3T嘉泰姆	0.8b3T嘉泰姆	5~12b3T嘉泰姆	2100b3T嘉泰姆
CXSD6277/A/Bb3T嘉泰姆	SOP8|TSSOP8b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	5b3T嘉泰姆	5b3T嘉泰姆	13.2b3T嘉泰姆	1.25|0.8b3T嘉泰姆	5~12b3T嘉泰姆	3000b3T嘉泰姆
CXSD6278b3T嘉泰姆	SOP-8b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	10b3T嘉泰姆	3.3b3T嘉泰姆	5.5b3T嘉泰姆	0.8b3T嘉泰姆	5b3T嘉泰姆	2100b3T嘉泰姆
CXSD6279Bb3T嘉泰姆	SOP-14b3T嘉泰姆	VM   b3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	10b3T嘉泰姆	5b3T嘉泰姆	13.2b3T嘉泰姆	0.8b3T嘉泰姆	12b3T嘉泰姆	2000b3T嘉泰姆
CXSD6280b3T嘉泰姆	TSSOP-24b3T嘉泰姆 |QFN5x5-32b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	2b3T嘉泰姆	20b3T嘉泰姆	5b3T嘉泰姆	13.2b3T嘉泰姆	0.6b3T嘉泰姆	5~12b3T嘉泰姆	4000b3T嘉泰姆
CXSD6281Nb3T嘉泰姆	SOP14b3T嘉泰姆 QSOP16b3T嘉泰姆 QFN-16b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	30b3T嘉泰姆	2.9b3T嘉泰姆	13.2b3T嘉泰姆	0.9b3T嘉泰姆	12b3T嘉泰姆	4000b3T嘉泰姆
CXSD6282b3T嘉泰姆	SOP-14b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	30b3T嘉泰姆	2.2b3T嘉泰姆	13.2b3T嘉泰姆	0.6b3T嘉泰姆	12b3T嘉泰姆	5000b3T嘉泰姆
CXSD6282Ab3T嘉泰姆	SOP-14b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	30b3T嘉泰姆	2.2b3T嘉泰姆	13.2b3T嘉泰姆	0.6b3T嘉泰姆	12b3T嘉泰姆	5000b3T嘉泰姆
CXSD6283b3T嘉泰姆	SOP-14b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	25b3T嘉泰姆	2.2b3T嘉泰姆	13.2b3T嘉泰姆	0.8b3T嘉泰姆	12b3T嘉泰姆	5000b3T嘉泰姆
CXSD6284/Ab3T嘉泰姆	LQFP7x7 48b3T嘉泰姆 TQFN7x7-48b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	6b3T嘉泰姆	0.015b3T嘉泰姆	1.4b3T嘉泰姆	6.5b3T嘉泰姆	-b3T嘉泰姆	5b3T嘉泰姆	1800b3T嘉泰姆
CXSD6285b3T嘉泰姆	TSSOP-24Pb3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	2b3T嘉泰姆	20b3T嘉泰姆	2.97b3T嘉泰姆	5.5b3T嘉泰姆	0.8b3T嘉泰姆	5~12b3T嘉泰姆	5000b3T嘉泰姆
CXSD6286b3T嘉泰姆	SOP-14b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	10b3T嘉泰姆	5b3T嘉泰姆	13.2b3T嘉泰姆	0.8b3T嘉泰姆	12b3T嘉泰姆	3000b3T嘉泰姆
CXSD6287b3T嘉泰姆	SOP-8-P|DIP-8b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	1b3T嘉泰姆	30b3T嘉泰姆	2.9b3T嘉泰姆	13.2b3T嘉泰姆	1.2b3T嘉泰姆	12b3T嘉泰姆	3000b3T嘉泰姆
CXSD6288b3T嘉泰姆	SSOP28b3T嘉泰姆 QFN4x4-24b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	2b3T嘉泰姆	20b3T嘉泰姆	5b3T嘉泰姆	24b3T嘉泰姆	0.9b3T嘉泰姆	5b3T嘉泰姆	1200b3T嘉泰姆
CXSD6289b3T嘉泰姆	SOP-20b3T嘉泰姆	VMb3T嘉泰姆	1b3T嘉泰姆	2b3T嘉泰姆	20b3T嘉泰姆	2.2b3T嘉泰姆	13.2b3T嘉泰姆

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