目录c9Z嘉泰姆

1.产品概述                       2.产品特点c9Z嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 c9Z嘉泰姆
5.产品封装图                     6.电路原理图                   c9Z嘉泰姆
7.功能概述                        8.相关产品

一,产品概述(General Description)   c9Z嘉泰姆

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          The CXSD6277/A/B series are designed to provide a low cost synchronousc9Z嘉泰姆
Buck regulator for on-board DC to DC con-verter applications. The CXSD6277/A/Bc9Z嘉泰姆
series together with dual N-channel MOSFETs , provide ac9Z嘉泰姆
low cost solution for such applications. Each device fea-tures an internalc9Z嘉泰姆
200/400kHz oscillator, Power-On-Reset (POR) for both VCC and VC supplies,c9Z嘉泰姆
an external pro-grammable soft-start function as well as output under-c9Z嘉泰姆
voltage detection that latches off the device when an out-put short is detected.c9Z嘉泰姆
二.产品特点(Features)c9Z嘉泰姆

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1.)Operating with Single 5V or 12V Inputc9Z嘉泰姆
2.)Drives N-Channel MOSFETsc9Z嘉泰姆
3.)Simple Single-Loop Control Designc9Z嘉泰姆
     Voltage-Mode PWM Controlc9Z嘉泰姆
     Full 0% to 100% Duty Ratioc9Z嘉泰姆
     Fast Transient Responsec9Z嘉泰姆
4.)±2% Output Voltage Accuracy Over Temperaturec9Z嘉泰姆
5.)Under-Voltage Protection for Outputc9Z嘉泰姆
6.)200/400kHz Constant Frequency Operationc9Z嘉泰姆
    200kHz for CXSD6277/A/BBc9Z嘉泰姆
    400kHz for CXSD6277/A/BAc9Z嘉泰姆
7.)Small size, 8-PIN Package (SOIC or TSSOP)c9Z嘉泰姆
8.)Lead Free and Green Devices Available (RoHS Compliant)c9Z嘉泰姆
三,应用范围 (Applications)c9Z嘉泰姆

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Graphics Cardsc9Z嘉泰姆
DDR Memory Power Supplyc9Z嘉泰姆
DDR Memory Termination Voltagec9Z嘉泰姆
Low-Voltage Distributed Power Suppliesc9Z嘉泰姆
四.下载产品资料PDF文档 c9Z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！c9Z嘉泰姆

 c9Z嘉泰姆

五,产品封装图 (Package)c9Z嘉泰姆
c9Z嘉泰姆
FB (Pin 1)c9Z嘉泰姆
Connect this pin to the output (VOUT) of the PWM con-verter via an external resistor divider to provide a voltagec9Z嘉泰姆
feedback path for the converter. The output voltage set by the resistor divider is determined using the following c9Z嘉泰姆

for-where ROUT is the resistor connected from VOUT to FB, and RGND is the resistor connected from FB to c9Z嘉泰姆

ground.The voltage at this pin is also monitored for Under-Volt-age protection.c9Z嘉泰姆
VCC (Pin 2)c9Z嘉泰姆
Connect this pin to input voltage from 5V to 20V. This pin provides the bias for the control circuitry and the c9Z嘉泰姆

power MOSFET driver (LDRV). The voltage at this pin is monitored for Power-On-Reset (POR) purpose.c9Z嘉泰姆
LDRV (Pin 3)c9Z嘉泰姆
Connect this pin to the gate of the low-side power MOSFET. This pin provides the gate drive for the MOSFET.c9Z嘉泰姆
GND (Pin 4)c9Z嘉泰姆
Signal and power ground for the IC. All voltage levels are measured with respect to this pin.c9Z嘉泰姆
HDRV (Pin 5)c9Z嘉泰姆
Connect this pin to the gate of the high-side power MOSFET. This pin provides the gate drive for the MOSFET.c9Z嘉泰姆
VC (Pin 6)c9Z嘉泰姆
This pin provides bias voltage to the high-side MOSFET driver. A bootstrap circuit may be used to pump a bootc9Z嘉泰姆
voltage for enforcing the driving capability of the gate driver and improving the performance of the MOSFET.c9Z嘉泰姆
COMP (Pin 7)c9Z嘉泰姆
This pin is the output of the error amplifier. Add an exter-nal resistor-capacitor network to provide a loop compen-c9Z嘉泰姆
sation for the PWM converter.c9Z嘉泰姆

SS (Pin 8)c9Z嘉泰姆
Connect a capacitor from this pin to ground.This capacitor,along with an internal 20μA current source, sets the soft-c9Z嘉泰姆
start interval of the PWM converter and prevents the out-puts from overshoot as well as limits the input current.c9Z嘉泰姆

Pull this pin below 0.5V can shutdown the converter.c9Z嘉泰姆
六.电路原理图c9Z嘉泰姆

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c9Z嘉泰姆
七,功能概述c9Z嘉泰姆

Profile Featurec9Z嘉泰姆	Sn-Pb Eutectic Assemblyc9Z嘉泰姆	Pb-Free Assemblyc9Z嘉泰姆
Average ramp-up ratec9Z嘉泰姆 (TL to TP)c9Z嘉泰姆	3°C/second max.c9Z嘉泰姆	3°C/second max.c9Z嘉泰姆
Preheatc9Z嘉泰姆 - Temperature Min (Tsmin)c9Z嘉泰姆 - Temperature Max (Tsmax)c9Z嘉泰姆 - Time (min to max) (ts)c9Z嘉泰姆	100°Cc9Z嘉泰姆 150°Cc9Z嘉泰姆 60-120 secondsc9Z嘉泰姆	150°Cc9Z嘉泰姆 200°Cc9Z嘉泰姆 60-180 secondsc9Z嘉泰姆
Time maintained above:c9Z嘉泰姆 - Temperature (TL)c9Z嘉泰姆 - Time (tL)c9Z嘉泰姆	183°Cc9Z嘉泰姆 60-150 secondsc9Z嘉泰姆	217°Cc9Z嘉泰姆 60-150 secondsc9Z嘉泰姆
Peak/Classification Temperature (Tp)c9Z嘉泰姆	See table 1c9Z嘉泰姆	See table 2c9Z嘉泰姆
Time within 5°C of actualc9Z嘉泰姆 Peak Temperature (tp)c9Z嘉泰姆	10-30 secondsc9Z嘉泰姆	20-40 secondsc9Z嘉泰姆
Ramp-down Ratec9Z嘉泰姆	6°C/second max.c9Z嘉泰姆	6°C/second max.c9Z嘉泰姆
Time 25°C to Peak Temperaturec9Z嘉泰姆	6 minutes max.c9Z嘉泰姆	8 minutes max.c9Z嘉泰姆

八,相关产品                         更多同类产品...... c9Z嘉泰姆

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Switching Regulator >   Buck Controllerc9Z嘉泰姆
Part_No c9Z嘉泰姆	Package c9Z嘉泰姆	Archic9Z嘉泰姆 tectuc9Z嘉泰姆	Phasec9Z嘉泰姆	No.ofc9Z嘉泰姆 PWMc9Z嘉泰姆 Outputc9Z嘉泰姆	Output c9Z嘉泰姆 Currentc9Z嘉泰姆 (A) c9Z嘉泰姆	Inputc9Z嘉泰姆 Voltage (V) c9Z嘉泰姆		Referencec9Z嘉泰姆 Voltagec9Z嘉泰姆 (V) c9Z嘉泰姆	Bias c9Z嘉泰姆 Voltagec9Z嘉泰姆 (V) c9Z嘉泰姆	Quiescentc9Z嘉泰姆 Currentc9Z嘉泰姆 (uA) c9Z嘉泰姆
						minc9Z嘉泰姆	maxc9Z嘉泰姆
CXSD6273c9Z嘉泰姆	SOP-14c9Z嘉泰姆 QSOP-16c9Z嘉泰姆 QFN4x4-16c9Z嘉泰姆	VM    c9Z嘉泰姆	1   c9Z嘉泰姆	1     c9Z嘉泰姆	30c9Z嘉泰姆	2.9    c9Z嘉泰姆	13.2c9Z嘉泰姆	0.9c9Z嘉泰姆	12     c9Z嘉泰姆	8000c9Z嘉泰姆
CXSD6274c9Z嘉泰姆	SOP-8c9Z嘉泰姆	VM   c9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	20c9Z嘉泰姆	2.9  c9Z嘉泰姆	13.2 c9Z嘉泰姆	0.8c9Z嘉泰姆	12c9Z嘉泰姆	5000c9Z嘉泰姆
CXSD6274Cc9Z嘉泰姆	SOP-8c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	20c9Z嘉泰姆	2.9c9Z嘉泰姆	13.2c9Z嘉泰姆	0.8c9Z嘉泰姆	12c9Z嘉泰姆	5000c9Z嘉泰姆
CXSD6275c9Z嘉泰姆	QFN4x4-24c9Z嘉泰姆	VMc9Z嘉泰姆	2c9Z嘉泰姆	1c9Z嘉泰姆	60c9Z嘉泰姆	3.1c9Z嘉泰姆	13.2c9Z嘉泰姆	0.6c9Z嘉泰姆	12c9Z嘉泰姆	5000c9Z嘉泰姆
CXSD6276c9Z嘉泰姆	SOP-8c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	20c9Z嘉泰姆	2.2c9Z嘉泰姆	13.2c9Z嘉泰姆	0.8c9Z嘉泰姆	5~12c9Z嘉泰姆	2100c9Z嘉泰姆
CXSD6276Ac9Z嘉泰姆	SOP-8c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	20c9Z嘉泰姆	2.2c9Z嘉泰姆	13.2c9Z嘉泰姆	0.8c9Z嘉泰姆	5~12c9Z嘉泰姆	2100c9Z嘉泰姆
CXSD6277/A/Bc9Z嘉泰姆	SOP8|TSSOP8c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	5c9Z嘉泰姆	5c9Z嘉泰姆	13.2c9Z嘉泰姆	1.25|0.8c9Z嘉泰姆	5~12c9Z嘉泰姆	3000c9Z嘉泰姆
CXSD6278c9Z嘉泰姆	SOP-8c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	10c9Z嘉泰姆	3.3c9Z嘉泰姆	5.5c9Z嘉泰姆	0.8c9Z嘉泰姆	5c9Z嘉泰姆	2100c9Z嘉泰姆
CXSD6279Bc9Z嘉泰姆	SOP-14c9Z嘉泰姆	VM   c9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	10c9Z嘉泰姆	5c9Z嘉泰姆	13.2c9Z嘉泰姆	0.8c9Z嘉泰姆	12c9Z嘉泰姆	2000c9Z嘉泰姆
CXSD6280c9Z嘉泰姆	TSSOP-24c9Z嘉泰姆 |QFN5x5-32c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	2c9Z嘉泰姆	20c9Z嘉泰姆	5c9Z嘉泰姆	13.2c9Z嘉泰姆	0.6c9Z嘉泰姆	5~12c9Z嘉泰姆	4000c9Z嘉泰姆
CXSD6281Nc9Z嘉泰姆	SOP14c9Z嘉泰姆 QSOP16c9Z嘉泰姆 QFN-16c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	30c9Z嘉泰姆	2.9c9Z嘉泰姆	13.2c9Z嘉泰姆	0.9c9Z嘉泰姆	12c9Z嘉泰姆	4000c9Z嘉泰姆
CXSD6282c9Z嘉泰姆	SOP-14c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	30c9Z嘉泰姆	2.2c9Z嘉泰姆	13.2c9Z嘉泰姆	0.6c9Z嘉泰姆	12c9Z嘉泰姆	5000c9Z嘉泰姆
CXSD6282Ac9Z嘉泰姆	SOP-14c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	30c9Z嘉泰姆	2.2c9Z嘉泰姆	13.2c9Z嘉泰姆	0.6c9Z嘉泰姆	12c9Z嘉泰姆	5000c9Z嘉泰姆
CXSD6283c9Z嘉泰姆	SOP-14c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	25c9Z嘉泰姆	2.2c9Z嘉泰姆	13.2c9Z嘉泰姆	0.8c9Z嘉泰姆	12c9Z嘉泰姆	5000c9Z嘉泰姆
CXSD6284/Ac9Z嘉泰姆	LQFP7x7 48c9Z嘉泰姆 TQFN7x7-48c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	6c9Z嘉泰姆	0.015c9Z嘉泰姆	1.4c9Z嘉泰姆	6.5c9Z嘉泰姆	-c9Z嘉泰姆	5c9Z嘉泰姆	1800c9Z嘉泰姆
CXSD6285c9Z嘉泰姆	TSSOP-24Pc9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	2c9Z嘉泰姆	20c9Z嘉泰姆	2.97c9Z嘉泰姆	5.5c9Z嘉泰姆	0.8c9Z嘉泰姆	5~12c9Z嘉泰姆	5000c9Z嘉泰姆
CXSD6286c9Z嘉泰姆	SOP-14c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	10c9Z嘉泰姆	5c9Z嘉泰姆	13.2c9Z嘉泰姆	0.8c9Z嘉泰姆	12c9Z嘉泰姆	3000c9Z嘉泰姆
CXSD6287c9Z嘉泰姆	SOP-8-P|DIP-8c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	1c9Z嘉泰姆	30c9Z嘉泰姆	2.9c9Z嘉泰姆	13.2c9Z嘉泰姆	1.2c9Z嘉泰姆	12c9Z嘉泰姆	3000c9Z嘉泰姆
CXSD6288c9Z嘉泰姆	SSOP28c9Z嘉泰姆 QFN4x4-24c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	2c9Z嘉泰姆	20c9Z嘉泰姆	5c9Z嘉泰姆	24c9Z嘉泰姆	0.9c9Z嘉泰姆	5c9Z嘉泰姆	1200c9Z嘉泰姆
CXSD6289c9Z嘉泰姆	SOP-20c9Z嘉泰姆	VMc9Z嘉泰姆	1c9Z嘉泰姆	2c9Z嘉泰姆	20c9Z嘉泰姆	2.2c9Z嘉泰姆	13.2c9Z嘉泰姆

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