1 Features
1• High-Efficiency Step-Down Four-Phase DC/DC
Converter Cores:
– Maximum Output Current 16 A
– Auto PWM-PFM and Forced-PWM Operations
– Auto Phase Adding/Shedding and Force Multi-
Phase Operations
– Remote Differential Feedback Voltage Sensing
– Programmable Output Voltage Slew-Rate from
30 mV/μs to 0.5 mV/μs
– VOUT Range = 0.5 V to 3.36 V with DVS
• Programmable Start-up and Shutdown Delays
with Enable Signal
• I2C-Compatible Interface which Supports Standard
(100 kHz), Fast (400 kHz), Fast+ (1 MHz), and
High-Speed (3.4 MHz) Modes
• Interrupt Function with Programmable Masking
• Load Current Measurement
• Output Short-Circuit and Overload Protection
• Spread-Spectrum Mode and Phase Interleaving
for EMI Reduction
• Overtemperature Warning and Protection
• Undervoltage Lockout (UVLO)

2 Applications
• Smart Phones, eBooks and Tablets
• Gaming Devices

3 Description
The LP8758 is designed to meet the power
management requirements of the latest application
processors in mobile phones and similar portable
applications. The device contains four step-down
DC/DC converter cores, which are bundled together
in a single 4-phase buck converter. The device is
controlled by an I2C-compatible serial interface.
The automatic PWM-PFM (AUTO mode) operation,
together with the automatic phase adding/shedding,
maximizes efficiency over a wide output-current
range. The LP8758 supports remote differential
voltage sensing to compensate IR drop between the
regulator output and the point-of-load, thus improving
the accuracy of the output voltage.
The LP8758 supports programmable start-up and
shutdown delays synchronized to Enable signal.
The protection features include short-circuit
protection, current limits, input supply UVLO, and
temperature warning and shutdown functions.
Several error flags are provided for status information
of the device. In addition, the LP8758 device supports
load current measurement without the addition of
external current sense resistors. During start-up and
voltage change, the device controls the output slew
rate to minimize output voltage overshoot and the
inrush current.