目录U3Z嘉泰姆

1.产品概述                       2.产品特点U3Z嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 U3Z嘉泰姆
5.产品封装图                     6.电路原理图                   U3Z嘉泰姆
7.功能概述                        8.相关产品U3Z嘉泰姆

一,产品概述(General Description)         U3Z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. U3Z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.U3Z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.U3Z嘉泰姆
二.产品特点(Features)U3Z嘉泰姆
1.)High Efficiency: Up to 96%U3Z嘉泰姆
2.)1.5MHz Constant Frequency OperationU3Z嘉泰姆
3.)Dual 2A Output CurrentU3Z嘉泰姆
4.)No Schottky Diode RequiredU3Z嘉泰姆
5.)2.3V to6V Input Voltage RangeU3Z嘉泰姆
6.)Output Voltage as Low as 0.6VU3Z嘉泰姆
7.)100% Duty Cycle in DropoutU3Z嘉泰姆
8.)Low Quiescent Current:40μAU3Z嘉泰姆
9.)Short Circuit ProtectionU3Z嘉泰姆
10.)Thermal Fault ProtectionU3Z嘉泰姆
11.)Inrush Current Limit and Soft StartU3Z嘉泰姆
12.)<1μA Shutdown CurrentU3Z嘉泰姆
13.)ESOP8 packageU3Z嘉泰姆
三,应用范围 (Applications)U3Z嘉泰姆
1.)Set Top BoxU3Z嘉泰姆
2.)Wireless and DSL ModemsU3Z嘉泰姆
3.)PDAsU3Z嘉泰姆
4.)Computer PeripheralsU3Z嘉泰姆
5.)Portable InstrumentsU3Z嘉泰姆
6.)Digital Still and Video CamerasU3Z嘉泰姆
四.下载产品资料PDF文档 U3Z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！U3Z嘉泰姆

 U3Z嘉泰姆

五,产品封装图 (Package)U3Z嘉泰姆
U3Z嘉泰姆

六.电路原理图U3Z嘉泰姆
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七,功能概述U3Z嘉泰姆
The CXSD61033 is a dual high output current monolithicU3Z嘉泰姆
switch mode step-down DC-DC converter. TheU3Z嘉泰姆
device operates at a fixed 1.5MHz switchingU3Z嘉泰姆
frequency, and uses a slope compensated currentU3Z嘉泰姆
mode architecture. This step-down DC-DC converterU3Z嘉泰姆
can supply up to dual respective 2000mA outputU3Z嘉泰姆
current at VIN = 3.6V and has an input voltage rangeU3Z嘉泰姆
from 2.3V to 6V. It minimizes external componentU3Z嘉泰姆
size and optimizes efficiency at the heavy loadU3Z嘉泰姆
range. The slope compensation allows the device toU3Z嘉泰姆
remain stable over a wider range of inductor valuesU3Z嘉泰姆
so that smaller values (1μH to 4.7μH) with lowerU3Z嘉泰姆
DCR can be used to achieve higher efficiency. OnlyU3Z嘉泰姆
a small bypass input capacitor is required at theU3Z嘉泰姆
output. The adjustable version can be programmedU3Z嘉泰姆
with external feedback to any voltage, ranging fromU3Z嘉泰姆
0.6V to nearly the input voltage. It uses internalU3Z嘉泰姆
MOSFETs to achieve high efficiency and canU3Z嘉泰姆
generate very low output voltages by using anU3Z嘉泰姆
internal reference of 0.6V. At dropout, the converterU3Z嘉泰姆
duty cycle increases to100% and the output voltageU3Z嘉泰姆
tracks the input voltage minus the low RDS(ON)U3Z嘉泰姆
drop of the P-channel high-side MOSFET and theU3Z嘉泰姆
inductor DCR. The internal error amplifier andU3Z嘉泰姆
compensation provides excellent transient response,U3Z嘉泰姆
load and line regulation. Internal soft start eliminatesU3Z嘉泰姆
any output voltage overshoot when the enable or theU3Z嘉泰姆
input voltage is applied.U3Z嘉泰姆
八,相关产品                      更多同类产品......U3Z嘉泰姆

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