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首页 > 产品中心 > 电源管理 > 同异步升降压DC转换器 > 同步DC-DC降压IC >CXSD61054 fully in tegrated , high-efficiency 2.0A synchronous rectified step-down converter high efficiency over a wide output current load range
CXSD61054 fully in tegrated , high-efficiency 2.0A synchronous rectified step-down converter high efficiency over a wide output current load range
0

CXSD61054 This device offers two operation modes,PWM control and PFM Mode
switching control, which allows a high efficiency over the wider range of the
load.

CXSD61054  fully in tegrated , high-efficiency  2.0A  synchronous  rectified step-down  converter high efficiency over a wide output current load range
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产品简介

目录mCJ嘉泰姆

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

 mCJ嘉泰姆

一,产品概述(General Description)      mCJ嘉泰姆


     The CXSD61054 is a fully in tegrated , high-efficiency  2.0A  synchronous  rectified step-down  converter.  The CXSD61054 operates at high efficiencymCJ嘉泰姆
over a wide output current load range.This device offers two operation modes,PWM control and PFM Mode switching control, which allows a highmCJ嘉泰姆
efficiency over the wider range of the load.The  rber of readily available standard external components and is available in an 6-pin SOT23 ROHS compliant package.mCJ嘉泰姆

二.产品特点(Features)mCJ嘉泰姆


* High Efficiency: Up to 95%mCJ嘉泰姆
* 600KHz Frequency OperationmCJ嘉泰姆
* 2.0A Output CurrentmCJ嘉泰姆
* No Schottky Diode RequiredmCJ嘉泰姆
* 3.5V to 18V Input Voltage RangemCJ嘉泰姆
* 0.6V ReferencemCJ嘉泰姆
 Slope Compensated Current ModemCJ嘉泰姆
 Control for Excellent Line and LoadmCJ嘉泰姆
 Transient ResponsemCJ嘉泰姆
* Integrated internal compensationmCJ嘉泰姆
* Stable with Low ESR Ceramic OutputmCJ嘉泰姆
   CapacitorsmCJ嘉泰姆
* Over Current Protection withmCJ嘉泰姆
    Hiccup-ModemCJ嘉泰姆
* Input over voltage protection(OVP)mCJ嘉泰姆
*  Thermal ShutdownmCJ嘉泰姆
*  Inrush Current Limit and Soft StartmCJ嘉泰姆
*  Available in SOT23-6 PackagemCJ嘉泰姆
*  -40°C to +85°C Temperature RangemCJ嘉泰姆
三,应用范围 (Applications)mCJ嘉泰姆


Distributed Power SystemsmCJ嘉泰姆
Digital Set Top BoxesmCJ嘉泰姆
Flat Panel Television and MonitorsmCJ嘉泰姆
Wireless and DSL ModemsmCJ嘉泰姆
Notebook ComputermCJ嘉泰姆
四.技术规格书下载(产品PDF)mCJ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mCJ嘉泰姆

 QQ截图20160419174301.jpgmCJ嘉泰姆

五,产品封装图 (Package)mCJ嘉泰姆

mCJ嘉泰姆
六.电路原理图mCJ嘉泰姆
mCJ嘉泰姆
七,功能概述mCJ嘉泰姆


Internal Regulator mCJ嘉泰姆
The CXSD61054 is a current mode step down DC/DC converter that provides excellentmCJ嘉泰姆
transient response with no extra external compensation components. This device containsmCJ嘉泰姆
an internal, low resistance, high voltage power MOSFET, and operates at a high 600KmCJ嘉泰姆
operating frequency to ensure a compact, high efficiency design with excellent AC and DCmCJ嘉泰姆
performance.mCJ嘉泰姆

Error AmplifiermCJ嘉泰姆
The error amplifier compares the FB pin voltage with the internal FB reference (VFB) andmCJ嘉泰姆
outputs a current proportional to the difference between the two. This output current is thenmCJ嘉泰姆
used to charge or discharge the internal compensation network to form the COMP voltage,mCJ嘉泰姆
which is used to control the power MOSFET current. The optimized internal compensationmCJ嘉泰姆
network minimizes the external component counts and simplifies the control loop design. mCJ嘉泰姆
Internal Soft-StartmCJ嘉泰姆
The soft-start is implemented to prevent the converter output voltage from overshootingmCJ嘉泰姆
during startup. When the chip starts, the internal circuitry generates a soft-start voltage (SS)mCJ嘉泰姆
ramping up from 0V to 0.6V. When it is lower than the internal reference (REF), SSmCJ嘉泰姆
overrides REF so the error amplifier uses SS as the reference. When SS is higher thanmCJ嘉泰姆
REF, REF regains control. The SS time is internally fixed to 1 ms.mCJ嘉泰姆
Over-Current-Protection and HiccupmCJ嘉泰姆
The CXSD61054 has cycle-by-cycle over current limit when the inductor current peak valuemCJ嘉泰姆
exceeds the set current limit threshold. Meanwhile, output voltage starts to drop until FB ismCJ嘉泰姆
below the Under-Voltage (UV) threshold, typically 30% below the reference. Once a UV ismCJ嘉泰姆
triggered, the CXSD61054 enters hiccup mode to periodically restart the part. ThismCJ嘉泰姆
protection mode is especially useful when the output is dead-short to ground. The averagemCJ嘉泰姆
short circuit current is greatly reduced to alleviate the thermal issue and to protect themCJ嘉泰姆
regulator. The CXSD61054 exits the hiccup mode once the over current condition ismCJ嘉泰姆
removed. mCJ嘉泰姆
Startup and Shutdown mCJ嘉泰姆
If both VIN and EN are higher than their appropriate thresholds, the chip starts. ThemCJ嘉泰姆
reference block starts first, generating stable reference voltage and currents, and then themCJ嘉泰姆
internal regulator is enabled. The regulator provides stable supply for the remainingmCJ嘉泰姆
八,相关芯片选择指南               更多同类产品......mCJ嘉泰姆


高压同步DC-DC降压ICmCJ嘉泰姆

型号mCJ嘉泰姆

输入耐压mCJ嘉泰姆

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封装mCJ嘉泰姆

CXSD61049mCJ嘉泰姆

8V-35VmCJ嘉泰姆

可调输出mCJ嘉泰姆

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2A/带可调恒流设置mCJ嘉泰姆

1.21VmCJ嘉泰姆

130KmCJ嘉泰姆

95%mCJ嘉泰姆

1.3mAmCJ嘉泰姆

112uAmCJ嘉泰姆

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可调输出/带线损mCJ嘉泰姆

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SOP-8mCJ嘉泰姆

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4.5-20VmCJ嘉泰姆

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2.0AmCJ嘉泰姆

0.923VmCJ嘉泰姆

340KmCJ嘉泰姆

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SOP-8mCJ嘉泰姆

CXSD61046A/BmCJ嘉泰姆

4.5-27VmCJ嘉泰姆

可调输出mCJ嘉泰姆

2.0A/2.5AmCJ嘉泰姆

0.925VmCJ嘉泰姆

340KmCJ嘉泰姆

96%mCJ嘉泰姆

1.3mAmCJ嘉泰姆

0.3uAmCJ嘉泰姆

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8V--35VmCJ嘉泰姆

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2.0A/带可调限流保护mCJ嘉泰姆

1.2VmCJ嘉泰姆

100-500KmCJ嘉泰姆

93%mCJ嘉泰姆

750uAmCJ嘉泰姆

110uAmCJ嘉泰姆

ESOP-8mCJ嘉泰姆

CXSD61048AmCJ嘉泰姆

10V--35VmCJ嘉泰姆

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2.5A/带可调限流保护mCJ嘉泰姆

1.2VmCJ嘉泰姆

100-500K可调mCJ嘉泰姆

93%mCJ嘉泰姆

15mAmCJ嘉泰姆

110uAmCJ嘉泰姆

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2.8A/带可调限流保护mCJ嘉泰姆

1.21VmCJ嘉泰姆

100-500K可调mCJ嘉泰姆

93%mCJ嘉泰姆

15mAmCJ嘉泰姆

110uAmCJ嘉泰姆

SOP-8mCJ嘉泰姆

CXSD61048CmCJ嘉泰姆

8V-35VmCJ嘉泰姆

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3.2A/带可调限流保护mCJ嘉泰姆

1.21VmCJ嘉泰姆

100-500K可调mCJ嘉泰姆

93%mCJ嘉泰姆

15mAmCJ嘉泰姆

110uAmCJ嘉泰姆

SOP-8mCJ嘉泰姆

CXSD61047mCJ嘉泰姆

4.6-22VmCJ嘉泰姆

可调输出mCJ嘉泰姆

3.0AmCJ嘉泰姆

0.923VmCJ嘉泰姆

340KmCJ嘉泰姆

95%mCJ嘉泰姆

55uAmCJ嘉泰姆

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4.5-27VmCJ嘉泰姆

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3.0AmCJ嘉泰姆

0.925VmCJ嘉泰姆

340KmCJ嘉泰姆

93%mCJ嘉泰姆

1.3mAmCJ嘉泰姆

0.3uAmCJ嘉泰姆

ESOP8mCJ嘉泰姆

CXSD61047BmCJ嘉泰姆

4.5V-23VmCJ嘉泰姆

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3.5AmCJ嘉泰姆

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340KmCJ嘉泰姆

96%mCJ嘉泰姆

2.5mAmCJ嘉泰姆

 

ESOP-8mCJ嘉泰姆

CXSD61051mCJ嘉泰姆

8V-35VmCJ嘉泰姆

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1.21VmCJ嘉泰姆

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14mAmCJ嘉泰姆

100uAmCJ嘉泰姆

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CXSD61052mCJ嘉泰姆

3.6-40VmCJ嘉泰姆

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2.0AmCJ嘉泰姆

0.8VmCJ嘉泰姆

440KmCJ嘉泰姆

94%mCJ嘉泰姆

74uAmCJ嘉泰姆

0.07uAmCJ嘉泰姆

ESOP-8mCJ嘉泰姆

CXSD61053mCJ嘉泰姆

4.5-20VmCJ嘉泰姆

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4.0AmCJ嘉泰姆

0.923VmCJ嘉泰姆

340KmCJ嘉泰姆

95%mCJ嘉泰姆

1.6mAmCJ嘉泰姆

6uAmCJ嘉泰姆

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3.5-23VmCJ嘉泰姆

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2.0AmCJ嘉泰姆

0.6VmCJ嘉泰姆

600KmCJ嘉泰姆

96%mCJ嘉泰姆

400uAmCJ嘉泰姆

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SOT-26mCJ嘉泰姆

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4.5-17VmCJ嘉泰姆

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600KmCJ嘉泰姆

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800uAmCJ嘉泰姆

 

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3.3-17VmCJ嘉泰姆

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4.5-26VmCJ嘉泰姆

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1.5AmCJ嘉泰姆

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600uAmCJ嘉泰姆

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