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.