目录

1.产品概述       2.产品特点     R9k嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）R9k嘉泰姆

5.产品封装       6.电路原理图  R9k嘉泰姆

7.相关产品R9k嘉泰姆

   产品概述 返回TOPR9k嘉泰姆

The CXSD62331 is a high efficiency monolithic synchronous step-down regulator using 1.4MHz constant frequency, current mode architecture. The device is available in an adjustable version. It is ideal for portable equipment requiring very high current up to 2A from single-cell Li-ion batteries while still achieving over 95% efficiency during peak load conditions. The CXSD62331 can enter PFM (low I_Q) mode with typically 55μA quiescent current for highest light load efficiency to maximize battery life.R9k嘉泰姆

The CXSD62331 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. It can supply up to 2A output load current from a 2.5V to 5.5V input voltage and the output voltage can be regulated as low as 1.2V. The high switching frequency (1.4MHz) minimizes the size of external components while keeping switching losses low. The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation.R9k嘉泰姆

CXSD62331 is available in both adjustable and fixed (1.2V, 1.8V, 3.3V) output voltage versions; in the Green TDFN-3×3-10L package. It is rated over the -40℃ to +85℃ temperature range.R9k嘉泰姆

   产品特点 返回TOPR9k嘉泰姆

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• High Efficiency: Up to 95%R9k嘉泰姆
• 2.5V to 5.5V Input Voltage RangeR9k嘉泰姆
• 1.4MHz Constant Frequency OperationR9k嘉泰姆
• 2A Output CurrentR9k嘉泰姆

• 1.2V, 1.8V and 3.3V Fixed and Adjustable Output VoltagesR9k嘉泰姆
• 100% Duty Cycle for Lowest DropoutR9k嘉泰姆
• Less than 2μA Shutdown CurrentR9k嘉泰姆
• Low Quiescent Current: 55μA in PFM ModeR9k嘉泰姆
• Low R_DS(ON) Internal Switches: 0.135ΩR9k嘉泰姆
• Allows Use of Ceramic CapacitorsR9k嘉泰姆
• Current Mode Control for Excellent Line andR9k嘉泰姆
    Load Transient ResponseR9k嘉泰姆
• Internal Soft-Start ProtectionR9k嘉泰姆
• Short Circuit and Thermal ProtectionR9k嘉泰姆
• -40℃ to +85℃ Operating Temperature RangeR9k嘉泰姆
• Available in Green TDFN-3×3-10L PackageR9k嘉泰姆

   应用范围 返回TOPR9k嘉泰姆

PDA, Pocket PC and Smart PhonesR9k嘉泰姆
USB Powered ModemsR9k嘉泰姆
CPUs and DSPsR9k嘉泰姆
PC Cards and NotebooksR9k嘉泰姆
Cellular PhonesR9k嘉泰姆
Digital CamerasR9k嘉泰姆
DSP Core SuppliesR9k嘉泰姆
Portable InstrumentsR9k嘉泰姆

   技术规格书（产品PDF) 返回TOP R9k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！R9k嘉泰姆

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产品封装图 返回TOPR9k嘉泰姆

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电路原理图 返回TOPR9k嘉泰姆

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