目录N1N嘉泰姆

1.产品概述                       2.产品特点N1N嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 N1N嘉泰姆
5.产品封装图                     6.电路原理图                   N1N嘉泰姆
7.功能概述                        8.相关产品

一,产品概述(General Description)   N1N嘉泰姆

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          The CXSD6277/A/B series are designed to provide a low cost synchronousN1N嘉泰姆
Buck regulator for on-board DC to DC con-verter applications. The CXSD6277/A/BN1N嘉泰姆
series together with dual N-channel MOSFETs , provide aN1N嘉泰姆
low cost solution for such applications. Each device fea-tures an internalN1N嘉泰姆
200/400kHz oscillator, Power-On-Reset (POR) for both VCC and VC supplies,N1N嘉泰姆
an external pro-grammable soft-start function as well as output under-N1N嘉泰姆
voltage detection that latches off the device when an out-put short is detected.N1N嘉泰姆
二.产品特点(Features)N1N嘉泰姆

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1.)Operating with Single 5V or 12V InputN1N嘉泰姆
2.)Drives N-Channel MOSFETsN1N嘉泰姆
3.)Simple Single-Loop Control DesignN1N嘉泰姆
     Voltage-Mode PWM ControlN1N嘉泰姆
     Full 0% to 100% Duty RatioN1N嘉泰姆
     Fast Transient ResponseN1N嘉泰姆
4.)±2% Output Voltage Accuracy Over TemperatureN1N嘉泰姆
5.)Under-Voltage Protection for OutputN1N嘉泰姆
6.)200/400kHz Constant Frequency OperationN1N嘉泰姆
    200kHz for CXSD6277/A/BBN1N嘉泰姆
    400kHz for CXSD6277/A/BAN1N嘉泰姆
7.)Small size, 8-PIN Package (SOIC or TSSOP)N1N嘉泰姆
8.)Lead Free and Green Devices Available (RoHS Compliant)N1N嘉泰姆
三,应用范围 (Applications)N1N嘉泰姆

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Graphics CardsN1N嘉泰姆
DDR Memory Power SupplyN1N嘉泰姆
DDR Memory Termination VoltageN1N嘉泰姆
Low-Voltage Distributed Power SuppliesN1N嘉泰姆
四.下载产品资料PDF文档 N1N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！N1N嘉泰姆

 N1N嘉泰姆

五,产品封装图 (Package)N1N嘉泰姆
N1N嘉泰姆
FB (Pin 1)N1N嘉泰姆
Connect this pin to the output (VOUT) of the PWM con-verter via an external resistor divider to provide a voltageN1N嘉泰姆
feedback path for the converter. The output voltage set by the resistor divider is determined using the following N1N嘉泰姆

for-where ROUT is the resistor connected from VOUT to FB, and RGND is the resistor connected from FB to N1N嘉泰姆

ground.The voltage at this pin is also monitored for Under-Volt-age protection.N1N嘉泰姆
VCC (Pin 2)N1N嘉泰姆
Connect this pin to input voltage from 5V to 20V. This pin provides the bias for the control circuitry and the N1N嘉泰姆

power MOSFET driver (LDRV). The voltage at this pin is monitored for Power-On-Reset (POR) purpose.N1N嘉泰姆
LDRV (Pin 3)N1N嘉泰姆
Connect this pin to the gate of the low-side power MOSFET. This pin provides the gate drive for the MOSFET.N1N嘉泰姆
GND (Pin 4)N1N嘉泰姆
Signal and power ground for the IC. All voltage levels are measured with respect to this pin.N1N嘉泰姆
HDRV (Pin 5)N1N嘉泰姆
Connect this pin to the gate of the high-side power MOSFET. This pin provides the gate drive for the MOSFET.N1N嘉泰姆
VC (Pin 6)N1N嘉泰姆
This pin provides bias voltage to the high-side MOSFET driver. A bootstrap circuit may be used to pump a bootN1N嘉泰姆
voltage for enforcing the driving capability of the gate driver and improving the performance of the MOSFET.N1N嘉泰姆
COMP (Pin 7)N1N嘉泰姆
This pin is the output of the error amplifier. Add an exter-nal resistor-capacitor network to provide a loop compen-N1N嘉泰姆
sation for the PWM converter.N1N嘉泰姆

SS (Pin 8)N1N嘉泰姆
Connect a capacitor from this pin to ground.This capacitor,along with an internal 20μA current source, sets the soft-N1N嘉泰姆
start interval of the PWM converter and prevents the out-puts from overshoot as well as limits the input current.N1N嘉泰姆

Pull this pin below 0.5V can shutdown the converter.N1N嘉泰姆
六.电路原理图N1N嘉泰姆

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N1N嘉泰姆
七,功能概述N1N嘉泰姆

Profile FeatureN1N嘉泰姆	Sn-Pb Eutectic AssemblyN1N嘉泰姆	Pb-Free AssemblyN1N嘉泰姆
Average ramp-up rateN1N嘉泰姆 (TL to TP)N1N嘉泰姆	3°C/second max.N1N嘉泰姆	3°C/second max.N1N嘉泰姆
PreheatN1N嘉泰姆 - Temperature Min (Tsmin)N1N嘉泰姆 - Temperature Max (Tsmax)N1N嘉泰姆 - Time (min to max) (ts)N1N嘉泰姆	100°CN1N嘉泰姆 150°CN1N嘉泰姆 60-120 secondsN1N嘉泰姆	150°CN1N嘉泰姆 200°CN1N嘉泰姆 60-180 secondsN1N嘉泰姆
Time maintained above:N1N嘉泰姆 - Temperature (TL)N1N嘉泰姆 - Time (tL)N1N嘉泰姆	183°CN1N嘉泰姆 60-150 secondsN1N嘉泰姆	217°CN1N嘉泰姆 60-150 secondsN1N嘉泰姆
Peak/Classification Temperature (Tp)N1N嘉泰姆	See table 1N1N嘉泰姆	See table 2N1N嘉泰姆
Time within 5°C of actualN1N嘉泰姆 Peak Temperature (tp)N1N嘉泰姆	10-30 secondsN1N嘉泰姆	20-40 secondsN1N嘉泰姆
Ramp-down RateN1N嘉泰姆	6°C/second max.N1N嘉泰姆	6°C/second max.N1N嘉泰姆
Time 25°C to Peak TemperatureN1N嘉泰姆	6 minutes max.N1N嘉泰姆	8 minutes max.N1N嘉泰姆

八,相关产品                         更多同类产品...... N1N嘉泰姆

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Switching Regulator >   Buck ControllerN1N嘉泰姆
Part_No N1N嘉泰姆	Package N1N嘉泰姆	ArchiN1N嘉泰姆 tectuN1N嘉泰姆	PhaseN1N嘉泰姆	No.ofN1N嘉泰姆 PWMN1N嘉泰姆 OutputN1N嘉泰姆	Output N1N嘉泰姆 CurrentN1N嘉泰姆 (A) N1N嘉泰姆	InputN1N嘉泰姆 Voltage (V) N1N嘉泰姆		ReferenceN1N嘉泰姆 VoltageN1N嘉泰姆 (V) N1N嘉泰姆	Bias N1N嘉泰姆 VoltageN1N嘉泰姆 (V) N1N嘉泰姆	QuiescentN1N嘉泰姆 CurrentN1N嘉泰姆 (uA) N1N嘉泰姆
						minN1N嘉泰姆	maxN1N嘉泰姆
CXSD6273N1N嘉泰姆	SOP-14N1N嘉泰姆 QSOP-16N1N嘉泰姆 QFN4x4-16N1N嘉泰姆	VM    N1N嘉泰姆	1   N1N嘉泰姆	1     N1N嘉泰姆	30N1N嘉泰姆	2.9    N1N嘉泰姆	13.2N1N嘉泰姆	0.9N1N嘉泰姆	12     N1N嘉泰姆	8000N1N嘉泰姆
CXSD6274N1N嘉泰姆	SOP-8N1N嘉泰姆	VM   N1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	20N1N嘉泰姆	2.9  N1N嘉泰姆	13.2 N1N嘉泰姆	0.8N1N嘉泰姆	12N1N嘉泰姆	5000N1N嘉泰姆
CXSD6274CN1N嘉泰姆	SOP-8N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	20N1N嘉泰姆	2.9N1N嘉泰姆	13.2N1N嘉泰姆	0.8N1N嘉泰姆	12N1N嘉泰姆	5000N1N嘉泰姆
CXSD6275N1N嘉泰姆	QFN4x4-24N1N嘉泰姆	VMN1N嘉泰姆	2N1N嘉泰姆	1N1N嘉泰姆	60N1N嘉泰姆	3.1N1N嘉泰姆	13.2N1N嘉泰姆	0.6N1N嘉泰姆	12N1N嘉泰姆	5000N1N嘉泰姆
CXSD6276N1N嘉泰姆	SOP-8N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	20N1N嘉泰姆	2.2N1N嘉泰姆	13.2N1N嘉泰姆	0.8N1N嘉泰姆	5~12N1N嘉泰姆	2100N1N嘉泰姆
CXSD6276AN1N嘉泰姆	SOP-8N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	20N1N嘉泰姆	2.2N1N嘉泰姆	13.2N1N嘉泰姆	0.8N1N嘉泰姆	5~12N1N嘉泰姆	2100N1N嘉泰姆
CXSD6277/A/BN1N嘉泰姆	SOP8|TSSOP8N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	5N1N嘉泰姆	5N1N嘉泰姆	13.2N1N嘉泰姆	1.25|0.8N1N嘉泰姆	5~12N1N嘉泰姆	3000N1N嘉泰姆
CXSD6278N1N嘉泰姆	SOP-8N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	10N1N嘉泰姆	3.3N1N嘉泰姆	5.5N1N嘉泰姆	0.8N1N嘉泰姆	5N1N嘉泰姆	2100N1N嘉泰姆
CXSD6279BN1N嘉泰姆	SOP-14N1N嘉泰姆	VM   N1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	10N1N嘉泰姆	5N1N嘉泰姆	13.2N1N嘉泰姆	0.8N1N嘉泰姆	12N1N嘉泰姆	2000N1N嘉泰姆
CXSD6280N1N嘉泰姆	TSSOP-24N1N嘉泰姆 |QFN5x5-32N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	2N1N嘉泰姆	20N1N嘉泰姆	5N1N嘉泰姆	13.2N1N嘉泰姆	0.6N1N嘉泰姆	5~12N1N嘉泰姆	4000N1N嘉泰姆
CXSD6281NN1N嘉泰姆	SOP14N1N嘉泰姆 QSOP16N1N嘉泰姆 QFN-16N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	30N1N嘉泰姆	2.9N1N嘉泰姆	13.2N1N嘉泰姆	0.9N1N嘉泰姆	12N1N嘉泰姆	4000N1N嘉泰姆
CXSD6282N1N嘉泰姆	SOP-14N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	30N1N嘉泰姆	2.2N1N嘉泰姆	13.2N1N嘉泰姆	0.6N1N嘉泰姆	12N1N嘉泰姆	5000N1N嘉泰姆
CXSD6282AN1N嘉泰姆	SOP-14N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	30N1N嘉泰姆	2.2N1N嘉泰姆	13.2N1N嘉泰姆	0.6N1N嘉泰姆	12N1N嘉泰姆	5000N1N嘉泰姆
CXSD6283N1N嘉泰姆	SOP-14N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	25N1N嘉泰姆	2.2N1N嘉泰姆	13.2N1N嘉泰姆	0.8N1N嘉泰姆	12N1N嘉泰姆	5000N1N嘉泰姆
CXSD6284/AN1N嘉泰姆	LQFP7x7 48N1N嘉泰姆 TQFN7x7-48N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	6N1N嘉泰姆	0.015N1N嘉泰姆	1.4N1N嘉泰姆	6.5N1N嘉泰姆	-N1N嘉泰姆	5N1N嘉泰姆	1800N1N嘉泰姆
CXSD6285N1N嘉泰姆	TSSOP-24PN1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	2N1N嘉泰姆	20N1N嘉泰姆	2.97N1N嘉泰姆	5.5N1N嘉泰姆	0.8N1N嘉泰姆	5~12N1N嘉泰姆	5000N1N嘉泰姆
CXSD6286N1N嘉泰姆	SOP-14N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	10N1N嘉泰姆	5N1N嘉泰姆	13.2N1N嘉泰姆	0.8N1N嘉泰姆	12N1N嘉泰姆	3000N1N嘉泰姆
CXSD6287N1N嘉泰姆	SOP-8-P|DIP-8N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	1N1N嘉泰姆	30N1N嘉泰姆	2.9N1N嘉泰姆	13.2N1N嘉泰姆	1.2N1N嘉泰姆	12N1N嘉泰姆	3000N1N嘉泰姆
CXSD6288N1N嘉泰姆	SSOP28N1N嘉泰姆 QFN4x4-24N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	2N1N嘉泰姆	20N1N嘉泰姆	5N1N嘉泰姆	24N1N嘉泰姆	0.9N1N嘉泰姆	5N1N嘉泰姆	1200N1N嘉泰姆
CXSD6289N1N嘉泰姆	SOP-20N1N嘉泰姆	VMN1N嘉泰姆	1N1N嘉泰姆	2N1N嘉泰姆	20N1N嘉泰姆	2.2N1N嘉泰姆	13.2N1N嘉泰姆

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