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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.