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目录S3Z嘉泰姆

1.产品概述                       2.产品特点S3Z嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 S3Z嘉泰姆
5.产品封装图                     6.电路原理图                   S3Z嘉泰姆
7.功能概述                        8.相关产品S3Z嘉泰姆

一,产品概述(General Description)         S3Z嘉泰姆

   The CXSD61033 is a 1.5MHz constant frequency current mode, dual high-efficiency PWM step-down converter.It is ideal for portable equipment requiring very high current up t o 2A each channel from single-cell Lithium-ion batteries while still achieving over 90%efficiency during peak load onditions. The CXSD61033 also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications. The CXSD61033 can supply up to 2A output load current each channel from a 2.3V to 6V input voltage and the output voltage can be regulated as low as 0.6V. The high switching frequency minimizes the size of external components while keeping switching losses low. S3Z嘉泰姆

The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation. The device is available in a Pb-free, 8-Lead ESOP package and is rated over the -40°C to +85°C temperature range.S3Z嘉泰姆

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.S3Z嘉泰姆
二.产品特点(Features)S3Z嘉泰姆
1.)High Efficiency: Up to 96%S3Z嘉泰姆
2.)1.5MHz Constant Frequency OperationS3Z嘉泰姆
3.)Dual 2A Output CurrentS3Z嘉泰姆
4.)No Schottky Diode RequiredS3Z嘉泰姆
5.)2.3V to6V Input Voltage RangeS3Z嘉泰姆
6.)Output Voltage as Low as 0.6VS3Z嘉泰姆
7.)100% Duty Cycle in DropoutS3Z嘉泰姆
8.)Low Quiescent Current:40μAS3Z嘉泰姆
9.)Short Circuit ProtectionS3Z嘉泰姆
10.)Thermal Fault ProtectionS3Z嘉泰姆
11.)Inrush Current Limit and Soft StartS3Z嘉泰姆
12.)<1μA Shutdown CurrentS3Z嘉泰姆
13.)ESOP8 packageS3Z嘉泰姆
三,应用范围 (Applications)S3Z嘉泰姆
1.)Set Top BoxS3Z嘉泰姆
2.)Wireless and DSL ModemsS3Z嘉泰姆
3.)PDAsS3Z嘉泰姆
4.)Computer PeripheralsS3Z嘉泰姆
5.)Portable InstrumentsS3Z嘉泰姆
6.)Digital Still and Video CamerasS3Z嘉泰姆
四.下载产品资料PDF文档 S3Z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！S3Z嘉泰姆

 S3Z嘉泰姆

五,产品封装图 (Package)S3Z嘉泰姆
S3Z嘉泰姆
六.电路原理图S3Z嘉泰姆

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七,功能概述S3Z嘉泰姆
The CXSD61033 is a dual high output current monolithicS3Z嘉泰姆
switch mode step-down DC-DC converter. TheS3Z嘉泰姆
device operates at a fixed 1.5MHz switchingS3Z嘉泰姆
frequency, and uses a slope compensated currentS3Z嘉泰姆
mode architecture. This step-down DC-DC converterS3Z嘉泰姆
can supply up to dual respective 2000mA outputS3Z嘉泰姆
current at VIN = 3.6V and has an input voltage rangeS3Z嘉泰姆
from 2.3V to 6V. It minimizes external componentS3Z嘉泰姆
size and optimizes efficiency at the heavy loadS3Z嘉泰姆
range. The slope compensation allows the device toS3Z嘉泰姆
remain stable over a wider range of inductor valuesS3Z嘉泰姆
so that smaller values (1μH to 4.7μH) with lowerS3Z嘉泰姆
DCR can be used to achieve higher efficiency. OnlyS3Z嘉泰姆
a small bypass input capacitor is required at theS3Z嘉泰姆
output. The adjustable version can be programmedS3Z嘉泰姆
with external feedback to any voltage, ranging fromS3Z嘉泰姆
0.6V to nearly the input voltage. It uses internalS3Z嘉泰姆
MOSFETs to achieve high efficiency and canS3Z嘉泰姆
generate very low output voltages by using anS3Z嘉泰姆
internal reference of 0.6V. At dropout, the converterS3Z嘉泰姆
duty cycle increases to100% and the output voltageS3Z嘉泰姆
tracks the input voltage minus the low RDS(ON)S3Z嘉泰姆
drop of the P-channel high-side MOSFET and theS3Z嘉泰姆
inductor DCR. The internal error amplifier andS3Z嘉泰姆
compensation provides excellent transient response,S3Z嘉泰姆
load and line regulation. Internal soft start eliminatesS3Z嘉泰姆
any output voltage overshoot when the enable or theS3Z嘉泰姆
input voltage is applied.S3Z嘉泰姆
八,相关产品                      更多同类产品......S3Z嘉泰姆

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