Analog DevicesLTM4707EY#PBFDC/DC-Wandler und Spannungsreglermodul

The LTM4707 is a complete 16A step-down Silent Switcher 3 power μModule® (power micromodule) regulator in a tiny 6.25mm × 6.25mm × 5.07mm BGA package.

Included in the LTM4707 package are the switching controller, the power MOSFETs, an inductor, and the supported components. Operating over an input voltage range of 3V to 16V, the LTM4707 supports an output range of 0.3V to 6V. A single resistor sets the output voltage, providing unity-gain operation over the output range, resulting in virtually constant-output noise independent of output voltage. Only bulk input and output capacitors are needed to finish the design.

The LTM4707 employs Silent Switcher 3 architecture with internal hot loop bypass capacitors to achieve both low electromagnetic interference (EMI) and high efficiency. The LTM4707 has an ultralow noise architecture to obtain exceptional low frequency (<100kHz) output noise. These low EMI and low noise features make the LTM4707 ideal for high current and noise-sensitive applications that benefit from the high efficiency of a synchronous switching regulator. The LTM4707 is available with a RoHS-compliant terminal finish.

Key Features and Benefits

• •  Complete Solution in <1cm2 (Single-sided PCB) or 0.5cm2 (Dual-sided PCB)
• •  Low Noise Silent Switcher® 3 Architecture
• •  Ultralow EMI Emissions
• •  Ultralow RMS Noise (10Hz to 100kHz): 8μVRMS
• •  ±1.5% Maximum Total DC Output Voltage Error Over Line, Load, and Temperature
• •  Input Voltage Range: 3V to 16V
• •  Output Voltage Range: 0.3V to 6V
• •  16A Maximum Continuous Output Current
• •  Adjustable and Synchronizable: 300kHz to 3MHz
• •  Current Mode Control, Fast Transient Response
• •  Forced Continuous Mode (FCM) Capability
• •  Multiphase Parallel with Current Sharing
• •  Programmable Power Good
• •  Available in a 49-Lead, 6.25mm × 6.25mm × 5.07mm, BGA Package

Applications

• •  Telecom, Networking, and Industrial equipment
• •  RF power supplies, including PLLs, VCOs, Mixers, LNAs, and PAs
• •  Low-noise Instrumentation
• •  High-speed and High-precision Data Converters

Evaluation Board

The LTM4707 can be evaluated with the EVAL-LTM4707-AZ.

Block Diagrams and Tables