LTM4723

• Ultra-Compact Footprint: Combines a Switching Controller, MOSFETs, Inductors, and Supported Components into a Tiny 4.25mm × 4.25mm × 1.15mm Land Grid Array (LGA) Package, Saving Significant Board Space and Simplifying Layout.
• Flexible Dual/Single Output: Delivers Dual 5A Outputs or can be Paralleled into a Single 10A Output to Power Multiple Rails or Single High-Current Loads.
• Wide Voltage Range and Precision: Supports a 2.25V to 5.5V Input and a Highly Precise, Programmable 0.5V to 3.6V Output (±1% regulation) for Sensitive Digital Logic, Field-Programmable Gate Arrays (FPGAs), and Application-Specific Integrated Circuits (ASICs).

The EVAL-LTM4723-AZ evaluation board features the LTM4723, a high-efficiency, high-power density DC-to-DC step-down μModule^® regulator that operates as either a dual 5A or a single 10A supply. The evaluation board supports an input voltage range of 2.25V to 5.5V. By default, V_OUT1 (Channel 1) is configured for 1.2V at 5A Max, and V_OUT2 (Channel 2) is configured for 1.8V at 5A Max. The typical switching frequency is 2MHz.

The integrated loop compensation simplifies design optimization, requiring only a few output capacitors and an optional feedforward capacitor to achieve the desired loop bandwidth and load transient performance. A user-selectable operating mode allows optimization for either light-load efficiency or low-noise operation. Pulse-skipping mode (PSM) and Burst Mode^® (BM) operation provide higher efficiency at light loads, while forced continuous mode (FCM) is preferred for noise-sensitive applications.

The LTM4723 employs a constant-frequency, peak current mode control architecture with integrated internal compensation, delivering fast transient response to input voltage and load changes while maintaining loop stability and providing cycle-by-cycle current limiting.

Review the LTM4723 data sheet and this user guide before operating or modifying the EVAL-LTM4723-AZ evaluation board.