目录Uu0嘉泰姆

1.产品概述                       2.产品特点Uu0嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 Uu0嘉泰姆
5.产品封装图                     6.电路原理图                   Uu0嘉泰姆
7.功能概述                        8.相关产品Uu0嘉泰姆

一,产品概述(General Description)         Uu0嘉泰姆
        The CXSD62116A/B/C is a voltage mode, fixed 300kHz-switching frequency,Uu0嘉泰姆
and synchronous buck controller. The CXSD62116A/B/C allows wide input voltageUu0嘉泰姆
that is either a single 5~12V or two supply voltage(s) for various applications.Uu0嘉泰姆
A power-on-reset (POR) circuit monitors the VCC supply voltage to preventUu0嘉泰姆
wrong logic controls. A built-in digital soft-start circuit prevents the outputUu0嘉泰姆
voltages from overshoot as well as limits the input current. An internalUu0嘉泰姆
0.6V temperature-compensated reference voltage with high accuracy isUu0嘉泰姆
designed to meet the requirement of low output voltage applications.Uu0嘉泰姆
The CXSD62116A/B/C provides excellent output voltage regulations againstUu0嘉泰姆
load current variation.Uu0嘉泰姆
     The controller’s over-current protection monitors the output currentUu0嘉泰姆
by using the voltage drops across the RDS(ON)of low-side MOSFET,Uu0嘉泰姆
eliminating the need for a current sensing resistor that features highUu0嘉泰姆
efficiency and low cost.Uu0嘉泰姆
     The CXSD62116A/B/C also integrates over-voltage protection (OVP) andUu0嘉泰姆
under-voltage protection circuit which moni-tors the FB voltage to preventUu0嘉泰姆
the PWM output from over and under voltage.Uu0嘉泰姆
     The CXSD62116A/B/C is available in a simple SOP-8P package.Uu0嘉泰姆
二.产品特点(Features)Uu0嘉泰姆
Wide Operation Supply Voltage from 5V to 12VUu0嘉泰姆
Power-On-Reset Monitoring on VCC Uu0嘉泰姆
Excellent Reference Voltage RegulationsUu0嘉泰姆
- 0.6V Internal ReferenceUu0嘉泰姆
- ±1% Over Temperature RangeUu0嘉泰姆
Integrated Soft-StartUu0嘉泰姆
Automatic PSM/PWM ModesUu0嘉泰姆
Voltage Mode PWM Operation with 90% (Max.) Duty CycleUu0嘉泰姆
Under-Voltage ProtectionUu0嘉泰姆
Adjustable Over-Current Protection ThresholdUu0嘉泰姆
- Sensing the RDS(ON) of Low-Side MOSFETUu0嘉泰姆
Over-Voltage ProtectionUu0嘉泰姆
Under-Voltage ProtectionUu0嘉泰姆
Simple SOP-8P PackageUu0嘉泰姆
Lead Free and Green Devices AvailableUu0嘉泰姆
(RoHS Compliant)Uu0嘉泰姆
三,应用范围 (Applications)Uu0嘉泰姆
Graphic CardsUu0嘉泰姆
DSL, Switch HUBUu0嘉泰姆
Wireless LanUu0嘉泰姆
Notebook ComputerUu0嘉泰姆
Mother BoardUu0嘉泰姆
LCD Monitor/TVUu0嘉泰姆

四.下载产品资料PDF文档 Uu0嘉泰姆

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！Uu0嘉泰姆

 Uu0嘉泰姆

五,产品封装图 (Package)Uu0嘉泰姆
Uu0嘉泰姆
六.电路原理图Uu0嘉泰姆

Uu0嘉泰姆
七,功能概述Uu0嘉泰姆
Layout ConsiderationUu0嘉泰姆
In any high switching frequency converter, a correct lay-out is important to ensure proper operation of theUu0嘉泰姆
regulator. With power devices switching at 300kHz,the resulting current transient will cause voltage spike acrossUu0嘉泰姆
the interconnecting impedance and parasitic circuit elements. As an example, consider the turn-off transitionUu0嘉泰姆
of the PWM MOSFET. Before turn-off, the MOSFET is car rying the full load current. During turn-off, current stopsUu0嘉泰姆
flowing in the MOSFET and is free-wheeling by the lower MOSFET and parasitic diode. Any parasitic inductance ofUu0嘉泰姆
the circuit generates a large voltage spike during the switching interval. In general, using short and wide printedUu0嘉泰姆
circuit traces should minimize interconnecting imped-Uu0嘉泰姆

Layout Consideration (Cont.)Uu0嘉泰姆
ances and the magnitude of voltage spike. And signal and power grounds are to be kept separate till combinedUu0嘉泰姆

using ground plane construction or single point grounding. Figure 8. illustrates the layout, with bold linesUu0嘉泰姆
indicating high current paths; these traces must be short and wide. Components along the bold lines should beUu0嘉泰姆

placed lose together. Below is a checklist for your layout:Uu0嘉泰姆

- Keep the switching nodes (UGATE, LGATE, and PHASE) away from sensitive small signal nodes since theseUu0嘉泰姆

nodes are fast moving signals. Therefore, keep traces to these nodes as short as possible.Uu0嘉泰姆

- The traces from the gate drivers to the MOSFETs (UG and LG) should be short and wide.Uu0嘉泰姆

- Place the source of the high-side MOSFET and the drain of the low-side MOSFET as close as possible. Minimiz-Uu0嘉泰姆
ing the impedance with wide layout plane between the two pads reduces the voltage bounce of the node.Uu0嘉泰姆
- Decoupling capacitor, compensation component, the resistor dividers, and boot capacitors should be closeUu0嘉泰姆
their pins. (For example, place the decoupling ceramic capacitor near the drain of the high-side MOSFET asUu0嘉泰姆
close as possible. The bulk capacitors are also placed near the drain).Uu0嘉泰姆
- The input capacitor should be near the drain of the up-per MOSFET; the output capacitor should be near theUu0嘉泰姆
loads. The input capacitor GND should be close to the output capacitor GND and the lower MOSFET GND.Uu0嘉泰姆
- The drain of the MOSFETs (VIN and PHASE nodes) should be a large plane for heat sinking.Uu0嘉泰姆
- The ROCSET resistance should be placed near the IC as close as possible.Close to ICUu0嘉泰姆
Figure 8. Layout GuidelinesUu0嘉泰姆

八,相关产品                     更多同类产品...... Uu0嘉泰姆

Switching Regulator >   Buck ControllerUu0嘉泰姆

Part_No Uu0嘉泰姆

Package Uu0嘉泰姆

ArchiUu0嘉泰姆

tectuUu0嘉泰姆

PhaseUu0嘉泰姆

No.ofUu0嘉泰姆

PWMUu0嘉泰姆

OutputUu0嘉泰姆

Output Uu0嘉泰姆

CurrentUu0嘉泰姆

(A) Uu0嘉泰姆

InputUu0嘉泰姆

Voltage (V) Uu0嘉泰姆

ReferenceUu0嘉泰姆

VoltageUu0嘉泰姆

(V) Uu0嘉泰姆

Bias Uu0嘉泰姆

VoltageUu0嘉泰姆

(V) Uu0嘉泰姆

QuiescentUu0嘉泰姆

CurrentUu0嘉泰姆

(uA) Uu0嘉泰姆

minUu0嘉泰姆

maxUu0嘉泰姆

CXSD6273Uu0嘉泰姆

SOP-14Uu0嘉泰姆

QSOP-16Uu0嘉泰姆

QFN4x4-16Uu0嘉泰姆

VM    Uu0嘉泰姆

1   Uu0嘉泰姆

1     Uu0嘉泰姆

30Uu0嘉泰姆

2.9    Uu0嘉泰姆

13.2Uu0嘉泰姆

0.9Uu0嘉泰姆

12     Uu0嘉泰姆

8000Uu0嘉泰姆

CXSD6274Uu0嘉泰姆

SOP-8Uu0嘉泰姆

VM   Uu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

20Uu0嘉泰姆

2.9  Uu0嘉泰姆

13.2 Uu0嘉泰姆

0.8Uu0嘉泰姆

12Uu0嘉泰姆

5000Uu0嘉泰姆

CXSD6274CUu0嘉泰姆

SOP-8Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

20Uu0嘉泰姆

2.9Uu0嘉泰姆

13.2Uu0嘉泰姆

0.8Uu0嘉泰姆

12Uu0嘉泰姆

5000Uu0嘉泰姆

CXSD6275Uu0嘉泰姆

QFN4x4-24Uu0嘉泰姆

VMUu0嘉泰姆

2Uu0嘉泰姆

1Uu0嘉泰姆

60Uu0嘉泰姆

3.1Uu0嘉泰姆

13.2Uu0嘉泰姆

0.6Uu0嘉泰姆

12Uu0嘉泰姆

5000Uu0嘉泰姆

CXSD6276Uu0嘉泰姆

SOP-8Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

20Uu0嘉泰姆

2.2Uu0嘉泰姆

13.2Uu0嘉泰姆

0.8Uu0嘉泰姆

5~12Uu0嘉泰姆

2100Uu0嘉泰姆

CXSD6276AUu0嘉泰姆

SOP-8Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

20Uu0嘉泰姆

2.2Uu0嘉泰姆

13.2Uu0嘉泰姆

0.8Uu0嘉泰姆

5~12Uu0嘉泰姆

2100Uu0嘉泰姆

CXSD6277/A/BUu0嘉泰姆

SOP8|TSSOP8Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

5Uu0嘉泰姆

5Uu0嘉泰姆

13.2Uu0嘉泰姆

1.25|0.8Uu0嘉泰姆

5~12Uu0嘉泰姆

3000Uu0嘉泰姆

CXSD6278Uu0嘉泰姆

SOP-8Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

10Uu0嘉泰姆

3.3Uu0嘉泰姆

5.5Uu0嘉泰姆

0.8Uu0嘉泰姆

5Uu0嘉泰姆

2100Uu0嘉泰姆

CXSD6279BUu0嘉泰姆

SOP-14Uu0嘉泰姆

VM   Uu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

10Uu0嘉泰姆

5Uu0嘉泰姆

13.2Uu0嘉泰姆

0.8Uu0嘉泰姆

12Uu0嘉泰姆

2000Uu0嘉泰姆

CXSD6280Uu0嘉泰姆

TSSOP-24Uu0嘉泰姆

|QFN5x5-32Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

2Uu0嘉泰姆

20Uu0嘉泰姆

5Uu0嘉泰姆

13.2Uu0嘉泰姆

0.6Uu0嘉泰姆

5~12Uu0嘉泰姆

4000Uu0嘉泰姆

CXSD6281NUu0嘉泰姆

SOP14Uu0嘉泰姆

QSOP16Uu0嘉泰姆

QFN-16Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

30Uu0嘉泰姆

2.9Uu0嘉泰姆

13.2Uu0嘉泰姆

0.9Uu0嘉泰姆

12Uu0嘉泰姆

4000Uu0嘉泰姆

CXSD6282Uu0嘉泰姆

SOP-14Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

30Uu0嘉泰姆

2.2Uu0嘉泰姆

13.2Uu0嘉泰姆

0.6Uu0嘉泰姆

12Uu0嘉泰姆

5000Uu0嘉泰姆

CXSD6282AUu0嘉泰姆

SOP-14Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

30Uu0嘉泰姆

2.2Uu0嘉泰姆

13.2Uu0嘉泰姆

0.6Uu0嘉泰姆

12Uu0嘉泰姆

5000Uu0嘉泰姆

CXSD6283Uu0嘉泰姆

SOP-14Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

25Uu0嘉泰姆

2.2Uu0嘉泰姆

13.2Uu0嘉泰姆

0.8Uu0嘉泰姆

12Uu0嘉泰姆

5000Uu0嘉泰姆

CXSD6284/AUu0嘉泰姆

LQFP7x7 48Uu0嘉泰姆

TQFN7x7-48Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

6Uu0嘉泰姆

0.015Uu0嘉泰姆

1.4Uu0嘉泰姆

6.5Uu0嘉泰姆

-Uu0嘉泰姆

5Uu0嘉泰姆

1800Uu0嘉泰姆

CXSD6285Uu0嘉泰姆

TSSOP-24PUu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

2Uu0嘉泰姆

20Uu0嘉泰姆

2.97Uu0嘉泰姆

5.5Uu0嘉泰姆

0.8Uu0嘉泰姆

5~12Uu0嘉泰姆

5000Uu0嘉泰姆

CXSD6286Uu0嘉泰姆

SOP-14Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

10Uu0嘉泰姆

5Uu0嘉泰姆

13.2Uu0嘉泰姆

0.8Uu0嘉泰姆

12Uu0嘉泰姆

3000Uu0嘉泰姆

CXSD6287Uu0嘉泰姆

SOP-8-P|DIP-8Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

1Uu0嘉泰姆

30Uu0嘉泰姆

2.9Uu0嘉泰姆

13.2Uu0嘉泰姆

1.2Uu0嘉泰姆

12Uu0嘉泰姆

3000Uu0嘉泰姆

CXSD6288Uu0嘉泰姆

SSOP28Uu0嘉泰姆

QFN4x4-24Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

2Uu0嘉泰姆

20Uu0嘉泰姆

5Uu0嘉泰姆

24Uu0嘉泰姆

0.9Uu0嘉泰姆

5Uu0嘉泰姆

1200Uu0嘉泰姆

CXSD6289Uu0嘉泰姆

SOP-20Uu0嘉泰姆

VMUu0嘉泰姆

1Uu0嘉泰姆

2Uu0嘉泰姆

20Uu0嘉泰姆

2.2Uu0嘉泰姆

13.2Uu0嘉泰姆

0.6Uu0嘉泰姆

5~12Uu0嘉泰姆

4000Uu0嘉泰姆

CXSD6290Uu0嘉泰姆