目录kj0嘉泰姆

1.产品概述                       2.产品特点kj0嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 kj0嘉泰姆
5.产品封装图                     6.电路原理图                   kj0嘉泰姆
7.功能概述                        8.相关产品

一,产品概述(General Description)   kj0嘉泰姆

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          The CXSD6277/A/B series are designed to provide a low cost synchronouskj0嘉泰姆
Buck regulator for on-board DC to DC con-verter applications. The CXSD6277/A/Bkj0嘉泰姆
series together with dual N-channel MOSFETs , provide akj0嘉泰姆
low cost solution for such applications. Each device fea-tures an internalkj0嘉泰姆
200/400kHz oscillator, Power-On-Reset (POR) for both VCC and VC supplies,kj0嘉泰姆
an external pro-grammable soft-start function as well as output under-kj0嘉泰姆
voltage detection that latches off the device when an out-put short is detected.kj0嘉泰姆
二.产品特点(Features)kj0嘉泰姆

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1.)Operating with Single 5V or 12V Inputkj0嘉泰姆
2.)Drives N-Channel MOSFETskj0嘉泰姆
3.)Simple Single-Loop Control Designkj0嘉泰姆
     Voltage-Mode PWM Controlkj0嘉泰姆
     Full 0% to 100% Duty Ratiokj0嘉泰姆
     Fast Transient Responsekj0嘉泰姆
4.)±2% Output Voltage Accuracy Over Temperaturekj0嘉泰姆
5.)Under-Voltage Protection for Outputkj0嘉泰姆
6.)200/400kHz Constant Frequency Operationkj0嘉泰姆
    200kHz for CXSD6277/A/BBkj0嘉泰姆
    400kHz for CXSD6277/A/BAkj0嘉泰姆
7.)Small size, 8-PIN Package (SOIC or TSSOP)kj0嘉泰姆
8.)Lead Free and Green Devices Available (RoHS Compliant)kj0嘉泰姆
三,应用范围 (Applications)kj0嘉泰姆

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Graphics Cardskj0嘉泰姆
DDR Memory Power Supplykj0嘉泰姆
DDR Memory Termination Voltagekj0嘉泰姆
Low-Voltage Distributed Power Supplieskj0嘉泰姆
四.下载产品资料PDF文档 kj0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！kj0嘉泰姆

 kj0嘉泰姆

五,产品封装图 (Package)kj0嘉泰姆
kj0嘉泰姆
FB (Pin 1)kj0嘉泰姆
Connect this pin to the output (VOUT) of the PWM con-verter via an external resistor divider to provide a voltagekj0嘉泰姆
feedback path for the converter. The output voltage set by the resistor divider is determined using the following kj0嘉泰姆

for-where ROUT is the resistor connected from VOUT to FB, and RGND is the resistor connected from FB to kj0嘉泰姆

ground.The voltage at this pin is also monitored for Under-Volt-age protection.kj0嘉泰姆
VCC (Pin 2)kj0嘉泰姆
Connect this pin to input voltage from 5V to 20V. This pin provides the bias for the control circuitry and the kj0嘉泰姆

power MOSFET driver (LDRV). The voltage at this pin is monitored for Power-On-Reset (POR) purpose.kj0嘉泰姆
LDRV (Pin 3)kj0嘉泰姆
Connect this pin to the gate of the low-side power MOSFET. This pin provides the gate drive for the MOSFET.kj0嘉泰姆
GND (Pin 4)kj0嘉泰姆
Signal and power ground for the IC. All voltage levels are measured with respect to this pin.kj0嘉泰姆
HDRV (Pin 5)kj0嘉泰姆
Connect this pin to the gate of the high-side power MOSFET. This pin provides the gate drive for the MOSFET.kj0嘉泰姆
VC (Pin 6)kj0嘉泰姆
This pin provides bias voltage to the high-side MOSFET driver. A bootstrap circuit may be used to pump a bootkj0嘉泰姆
voltage for enforcing the driving capability of the gate driver and improving the performance of the MOSFET.kj0嘉泰姆
COMP (Pin 7)kj0嘉泰姆
This pin is the output of the error amplifier. Add an exter-nal resistor-capacitor network to provide a loop compen-kj0嘉泰姆
sation for the PWM converter.kj0嘉泰姆

SS (Pin 8)kj0嘉泰姆
Connect a capacitor from this pin to ground.This capacitor,along with an internal 20μA current source, sets the soft-kj0嘉泰姆
start interval of the PWM converter and prevents the out-puts from overshoot as well as limits the input current.kj0嘉泰姆

Pull this pin below 0.5V can shutdown the converter.kj0嘉泰姆
六.电路原理图kj0嘉泰姆

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kj0嘉泰姆
七,功能概述kj0嘉泰姆

Profile Featurekj0嘉泰姆	Sn-Pb Eutectic Assemblykj0嘉泰姆	Pb-Free Assemblykj0嘉泰姆
Average ramp-up ratekj0嘉泰姆 (TL to TP)kj0嘉泰姆	3°C/second max.kj0嘉泰姆	3°C/second max.kj0嘉泰姆
Preheatkj0嘉泰姆 - Temperature Min (Tsmin)kj0嘉泰姆 - Temperature Max (Tsmax)kj0嘉泰姆 - Time (min to max) (ts)kj0嘉泰姆	100°Ckj0嘉泰姆 150°Ckj0嘉泰姆 60-120 secondskj0嘉泰姆	150°Ckj0嘉泰姆 200°Ckj0嘉泰姆 60-180 secondskj0嘉泰姆
Time maintained above:kj0嘉泰姆 - Temperature (TL)kj0嘉泰姆 - Time (tL)kj0嘉泰姆	183°Ckj0嘉泰姆 60-150 secondskj0嘉泰姆	217°Ckj0嘉泰姆 60-150 secondskj0嘉泰姆
Peak/Classification Temperature (Tp)kj0嘉泰姆	See table 1kj0嘉泰姆	See table 2kj0嘉泰姆
Time within 5°C of actualkj0嘉泰姆 Peak Temperature (tp)kj0嘉泰姆	10-30 secondskj0嘉泰姆	20-40 secondskj0嘉泰姆
Ramp-down Ratekj0嘉泰姆	6°C/second max.kj0嘉泰姆	6°C/second max.kj0嘉泰姆
Time 25°C to Peak Temperaturekj0嘉泰姆	6 minutes max.kj0嘉泰姆	8 minutes max.kj0嘉泰姆

八,相关产品                         更多同类产品...... kj0嘉泰姆

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Switching Regulator >   Buck Controllerkj0嘉泰姆
Part_No kj0嘉泰姆	Package kj0嘉泰姆	Archikj0嘉泰姆 tectukj0嘉泰姆	Phasekj0嘉泰姆	No.ofkj0嘉泰姆 PWMkj0嘉泰姆 Outputkj0嘉泰姆	Output kj0嘉泰姆 Currentkj0嘉泰姆 (A) kj0嘉泰姆	Inputkj0嘉泰姆 Voltage (V) kj0嘉泰姆		Referencekj0嘉泰姆 Voltagekj0嘉泰姆 (V) kj0嘉泰姆	Bias kj0嘉泰姆 Voltagekj0嘉泰姆 (V) kj0嘉泰姆	Quiescentkj0嘉泰姆 Currentkj0嘉泰姆 (uA) kj0嘉泰姆
						minkj0嘉泰姆	maxkj0嘉泰姆
CXSD6273kj0嘉泰姆	SOP-14kj0嘉泰姆 QSOP-16kj0嘉泰姆 QFN4x4-16kj0嘉泰姆	VM    kj0嘉泰姆	1   kj0嘉泰姆	1     kj0嘉泰姆	30kj0嘉泰姆	2.9    kj0嘉泰姆	13.2kj0嘉泰姆	0.9kj0嘉泰姆	12     kj0嘉泰姆	8000kj0嘉泰姆
CXSD6274kj0嘉泰姆	SOP-8kj0嘉泰姆	VM   kj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	20kj0嘉泰姆	2.9  kj0嘉泰姆	13.2 kj0嘉泰姆	0.8kj0嘉泰姆	12kj0嘉泰姆	5000kj0嘉泰姆
CXSD6274Ckj0嘉泰姆	SOP-8kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	20kj0嘉泰姆	2.9kj0嘉泰姆	13.2kj0嘉泰姆	0.8kj0嘉泰姆	12kj0嘉泰姆	5000kj0嘉泰姆
CXSD6275kj0嘉泰姆	QFN4x4-24kj0嘉泰姆	VMkj0嘉泰姆	2kj0嘉泰姆	1kj0嘉泰姆	60kj0嘉泰姆	3.1kj0嘉泰姆	13.2kj0嘉泰姆	0.6kj0嘉泰姆	12kj0嘉泰姆	5000kj0嘉泰姆
CXSD6276kj0嘉泰姆	SOP-8kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	20kj0嘉泰姆	2.2kj0嘉泰姆	13.2kj0嘉泰姆	0.8kj0嘉泰姆	5~12kj0嘉泰姆	2100kj0嘉泰姆
CXSD6276Akj0嘉泰姆	SOP-8kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	20kj0嘉泰姆	2.2kj0嘉泰姆	13.2kj0嘉泰姆	0.8kj0嘉泰姆	5~12kj0嘉泰姆	2100kj0嘉泰姆
CXSD6277/A/Bkj0嘉泰姆	SOP8|TSSOP8kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	5kj0嘉泰姆	5kj0嘉泰姆	13.2kj0嘉泰姆	1.25|0.8kj0嘉泰姆	5~12kj0嘉泰姆	3000kj0嘉泰姆
CXSD6278kj0嘉泰姆	SOP-8kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	10kj0嘉泰姆	3.3kj0嘉泰姆	5.5kj0嘉泰姆	0.8kj0嘉泰姆	5kj0嘉泰姆	2100kj0嘉泰姆
CXSD6279Bkj0嘉泰姆	SOP-14kj0嘉泰姆	VM   kj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	10kj0嘉泰姆	5kj0嘉泰姆	13.2kj0嘉泰姆	0.8kj0嘉泰姆	12kj0嘉泰姆	2000kj0嘉泰姆
CXSD6280kj0嘉泰姆	TSSOP-24kj0嘉泰姆 |QFN5x5-32kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	2kj0嘉泰姆	20kj0嘉泰姆	5kj0嘉泰姆	13.2kj0嘉泰姆	0.6kj0嘉泰姆	5~12kj0嘉泰姆	4000kj0嘉泰姆
CXSD6281Nkj0嘉泰姆	SOP14kj0嘉泰姆 QSOP16kj0嘉泰姆 QFN-16kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	30kj0嘉泰姆	2.9kj0嘉泰姆	13.2kj0嘉泰姆	0.9kj0嘉泰姆	12kj0嘉泰姆	4000kj0嘉泰姆
CXSD6282kj0嘉泰姆	SOP-14kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	30kj0嘉泰姆	2.2kj0嘉泰姆	13.2kj0嘉泰姆	0.6kj0嘉泰姆	12kj0嘉泰姆	5000kj0嘉泰姆
CXSD6282Akj0嘉泰姆	SOP-14kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	30kj0嘉泰姆	2.2kj0嘉泰姆	13.2kj0嘉泰姆	0.6kj0嘉泰姆	12kj0嘉泰姆	5000kj0嘉泰姆
CXSD6283kj0嘉泰姆	SOP-14kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	25kj0嘉泰姆	2.2kj0嘉泰姆	13.2kj0嘉泰姆	0.8kj0嘉泰姆	12kj0嘉泰姆	5000kj0嘉泰姆
CXSD6284/Akj0嘉泰姆	LQFP7x7 48kj0嘉泰姆 TQFN7x7-48kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	6kj0嘉泰姆	0.015kj0嘉泰姆	1.4kj0嘉泰姆	6.5kj0嘉泰姆	-kj0嘉泰姆	5kj0嘉泰姆	1800kj0嘉泰姆
CXSD6285kj0嘉泰姆	TSSOP-24Pkj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	2kj0嘉泰姆	20kj0嘉泰姆	2.97kj0嘉泰姆	5.5kj0嘉泰姆	0.8kj0嘉泰姆	5~12kj0嘉泰姆	5000kj0嘉泰姆
CXSD6286kj0嘉泰姆	SOP-14kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	10kj0嘉泰姆	5kj0嘉泰姆	13.2kj0嘉泰姆	0.8kj0嘉泰姆	12kj0嘉泰姆	3000kj0嘉泰姆
CXSD6287kj0嘉泰姆	SOP-8-P|DIP-8kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	1kj0嘉泰姆	30kj0嘉泰姆	2.9kj0嘉泰姆	13.2kj0嘉泰姆	1.2kj0嘉泰姆	12kj0嘉泰姆	3000kj0嘉泰姆
CXSD6288kj0嘉泰姆	SSOP28kj0嘉泰姆 QFN4x4-24kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	2kj0嘉泰姆	20kj0嘉泰姆	5kj0嘉泰姆	24kj0嘉泰姆	0.9kj0嘉泰姆	5kj0嘉泰姆	1200kj0嘉泰姆
CXSD6289kj0嘉泰姆	SOP-20kj0嘉泰姆	VMkj0嘉泰姆	1kj0嘉泰姆	2kj0嘉泰姆	20kj0嘉泰姆	2.2kj0嘉泰姆	13.2kj0嘉泰姆

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