The LM10504 is an advanced PMU containing three configurable, high-efficiency buck regulators for supplying variable voltages. The device is ideal for supporting ASIC and SOC designs for Solid-State and Flash drives.

The LM10504 operates cooperatively with ASIC to optimize the supply voltage for low-power conditions and Power Saving modes via the SPI interface. It also supports a 250 mA LDO and a programmable Interrupt Comparator.

• Three Highly Efficient Programmable Buck Regulators
  • Integrated FETs with Low RDSON
  • Bucks Operate with Their Phases Shifted to Reduce the Input Current Ripple and Capacitor Size
  • Programmable Output Voltage via the SPI Interface
  • Overvoltage and Undervoltage Lockout
  • Automatic Internal Soft Start with Power-On Reset
  • Current Overload and Thermal Shutdown Protection
  • PFM Mode for Low-Load, High-Efficiency Operation
• Power-Down Data Protection Enhances Data Integrity
  • Bypass Mode Available on Bucks 1 and 2
• Deep Sleep Mode to Save Power During Idle Times
  • DEVSLP Function
• Programmable Low-Dropout LDO 1.2V to 3.1V, up to 250 mA
• SPI-Programmable Interrupt Comparator (2.0V to 4.0V)
• Alternate Buck VOUTS Selectable via VSELECT Logic Pins
• Customizable Startup Sequencing for Varied Controllers
• RESET Pin

Key Specifications

• Programmable Buck Regulators:
  • Buck 1: 1.1V to 3.6V; 1.6A
  • Buck 2: 1.1V to 3.6V; 1A
  • Buck 3: 0.7V to 1.335V; 1A
• ±3% feedback voltage accuracy
• Up to 95% efficient buck regulators
• 2MHz switching frequency for smaller inductor size
• 2.8 x 2.8 mm, 0.4 mm pitch 34-bump DSBGA package

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