目录FPG嘉泰姆

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

一,产品概述(General Description)         FPG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. FPG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.FPG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.FPG嘉泰姆
二.产品特点(Features)FPG嘉泰姆
1.)High Efficiency: Up to 96%FPG嘉泰姆
2.)1.5MHz Constant Frequency OperationFPG嘉泰姆
3.)Dual 2A Output CurrentFPG嘉泰姆
4.)No Schottky Diode RequiredFPG嘉泰姆
5.)2.3V to6V Input Voltage RangeFPG嘉泰姆
6.)Output Voltage as Low as 0.6VFPG嘉泰姆
7.)100% Duty Cycle in DropoutFPG嘉泰姆
8.)Low Quiescent Current:40μAFPG嘉泰姆
9.)Short Circuit ProtectionFPG嘉泰姆
10.)Thermal Fault ProtectionFPG嘉泰姆
11.)Inrush Current Limit and Soft StartFPG嘉泰姆
12.)<1μA Shutdown CurrentFPG嘉泰姆
13.)ESOP8 packageFPG嘉泰姆
三,应用范围 (Applications)FPG嘉泰姆
1.)Set Top BoxFPG嘉泰姆
2.)Wireless and DSL ModemsFPG嘉泰姆
3.)PDAsFPG嘉泰姆
4.)Computer PeripheralsFPG嘉泰姆
5.)Portable InstrumentsFPG嘉泰姆
6.)Digital Still and Video CamerasFPG嘉泰姆
四.下载产品资料PDF文档 FPG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！FPG嘉泰姆

 FPG嘉泰姆

五,产品封装图 (Package)FPG嘉泰姆
FPG嘉泰姆

六.电路原理图FPG嘉泰姆
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七,功能概述FPG嘉泰姆
The CXSD61033 is a dual high output current monolithicFPG嘉泰姆
switch mode step-down DC-DC converter. TheFPG嘉泰姆
device operates at a fixed 1.5MHz switchingFPG嘉泰姆
frequency, and uses a slope compensated currentFPG嘉泰姆
mode architecture. This step-down DC-DC converterFPG嘉泰姆
can supply up to dual respective 2000mA outputFPG嘉泰姆
current at VIN = 3.6V and has an input voltage rangeFPG嘉泰姆
from 2.3V to 6V. It minimizes external componentFPG嘉泰姆
size and optimizes efficiency at the heavy loadFPG嘉泰姆
range. The slope compensation allows the device toFPG嘉泰姆
remain stable over a wider range of inductor valuesFPG嘉泰姆
so that smaller values (1μH to 4.7μH) with lowerFPG嘉泰姆
DCR can be used to achieve higher efficiency. OnlyFPG嘉泰姆
a small bypass input capacitor is required at theFPG嘉泰姆
output. The adjustable version can be programmedFPG嘉泰姆
with external feedback to any voltage, ranging fromFPG嘉泰姆
0.6V to nearly the input voltage. It uses internalFPG嘉泰姆
MOSFETs to achieve high efficiency and canFPG嘉泰姆
generate very low output voltages by using anFPG嘉泰姆
internal reference of 0.6V. At dropout, the converterFPG嘉泰姆
duty cycle increases to100% and the output voltageFPG嘉泰姆
tracks the input voltage minus the low RDS(ON)FPG嘉泰姆
drop of the P-channel high-side MOSFET and theFPG嘉泰姆
inductor DCR. The internal error amplifier andFPG嘉泰姆
compensation provides excellent transient response,FPG嘉泰姆
load and line regulation. Internal soft start eliminatesFPG嘉泰姆
any output voltage overshoot when the enable or theFPG嘉泰姆
input voltage is applied.FPG嘉泰姆
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