1 Features
1• Fully Integrated Quad Buck, up to 4-A
Programmable Maximum Output Current Per
Buck
– Auto PWM-PFM and Forced-PWM Operations
– Programmable Output Voltage Slew Rate
From 30 mV/μs to 0.5 mV/μs
– Input Voltage Range: 2.5 V to 5.5 V
– VOUT Range: 0.5 V to 3.36 V with DVS
• Programmable Start-Up and Shutdown
Sequencing With Enable Signal
• I2C-Compatible Interface That 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 for EMI Reduction
• The Four Buck Cores Operate 90° out of Phase
Thereby Reducing Input Ripple Current
• Overtemperature Warning and Protection
• Undervoltage Lockout (UVLO)

2 Applications
• Optical Modules
• Drone Systems
• Smart Phones, eBooks, and Tablets
• Solid State Drives

3 Description
The LP8758-E3 device is designed to meet power
management requirements for low-power processors
in mobile phones, network cards, and similar
applications. The device contains four step-down DCDC
converter cores, providing four output voltage
rails. The device is controlled by an I2C-compatible
serial interface.
The automatic PWM-PFM (AUTO mode) operation
maximizes efficiency over a wide output-current
range.
The LP8758-E3 supports programmable start-up and
shutdown sequencing synchronized to hardware
Enable input 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-E3 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.
(1) For all available packages, see the orderable addendum at
the end of the data sheet.