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LTM4657 Datasheet(PDF) 1 Page - Analog Devices |
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LTM4657 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 32 page  LTM4703 1 Rev. 0 For more information www.analog.com Document Feedback TYPICAL APPLICATION FEATURES DESCRIPTION 16VIN, 12A Ultralow Noise Silent Switcher 3 µModule Regulator The LTM®4703 is a complete 12A step-down Silent Switcher 3 µModule® (micromodule) regulator in a tiny 6.25mm × 6.25mm × 5.07mm ball grid array (BGA) package.The package includes the switching controller, the power MOSFETs, an inductor, and support compo- nents. Operating over an input voltage range of 3V to 16V, the LTM4703 supports an output range of 0.3V to 6V. A single resistor sets the output voltage, providing unity gain operation over the output range and resulting in virtually constant output noise independent of the output voltage. Only bulk input and output capacitors are needed to finish the design. The LTM4703 employs Silent Switcher 3 architecture with internal hot loop bypass capacitors to achieve both low electromagnetic interference (EMI) and high efficiency. Also, the LTM4703 has an ultralow noise architecture to obtain exceptional low-frequency (<100kHz) output noise. These low EMI and low noise features make the LTM4703 ideal for high current and noise-sensitive applications, which benefit from the high efficiency of a synchronous switching regulator. The LTM4703 is available with a RoHS-compliant terminal finish. 3V to 16V Input to 1V, 12A Output APPLICATIONS n Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB) n Low Noise Silent Switcher®3 Architecture n Ultralow EMI Emissions n Ultralow RMS Noise (10Hz to 100kHz): 8μVRMS n ±1.5% Maximum Total DC Output Voltage Error Over Line, Load, and Temperature n Input Voltage Range: 3V to 16V n Output Voltage Range: 0.3V to 6V n 12A Maximum Continuous Output Current n Adjustable and Synchronizable: 300kHz to 3MHz n Current Mode Control, Fast Transient Response n Forced Continuous Mode (FCM) Capability n Multiphase Parallel with Current Sharing n Programmable Power Good n 6.25mm × 6.25mm × 5.07mm BGA Package n Telecom, Networking, and Industrial Equipment n RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs n Low Noise Instrumentation n High Speed/High Precision Data Converters n Medical Equipment All registered trademarks and trademarks are the property of their respective owners. Efficiency, 12VIN, fSW = 800kHz 137k 10k 4.7µF 10µF 49.9k 220µF ×2 VIN SVIN RUN COMPa COMPb RT AGND VIN 3V TO 16V LTM4703 VOUT VOSNS PGSET SET GND VOUT 1V, 12A 4703 TA01a fSW = 800kHz LOAD CURRENT (A) 0 2 4 6 8 10 12 65 70 75 80 85 90 95 100 4703 TA01b 5.0VOUT 3.6VOUT 1.8VOUT 1.0VOUT |
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Descripción similar - LTM4657 |
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