1 Features
1• Three Highly Efficient Programmable Buck
Regulators
– Integrated FETs with Low RDS-ON
– Bucks Operate with their Phases Shifted to
Reduce the Input Current Ripple and Capacitor
Size
– Programmable Output Voltage via the SPI
Interface
– Over and Under-Voltage-Lockout
– Automatic Internal Soft Start with Power-On
Reset
– Current Overload and Thermal Shutdown
Protection
– PFM Mode for High Efficiency at Light Load
Conditions
• Low-Dropout Regulator 2.5 V, 250mA
• Hardware ENABLE and PWR_OK Terminal
• Fast Start-up for All Voltage Rails in about 3.5ms
to PWR_OK
• Fast Turn-off / Active Discharge on Regulator
Outputs
• Programmable Buck Regulators:
– Buck 1: 0.9 - 3.4 V; 1.6A
– Buck 2: 0.9 - 3.4 V; 1A
– Buck 3: 0.865 - 1.5 V; 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 μSMD
Package

2 Applications
Solid-State Drives

3 Description
The LM10507 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.
LM10507 operates cooperatively with ASIC to
optimize the supply voltage for low power conditions
and power saving modes via SPI interface. It also
supports a 2.5 V 250 mA LDO.