| Regulated outputs (#) | 4 |
| Vin (Min) (V) | 2.5 |
| Vin (Max) (V) | 5.5 |
| Iout (Max) (A) | 4 |
| Rating | Catalog |
| LDO | 0 |
| Iq (Typ) (mA) | 0.006 |
| Features | Adjustable Current Limit, Dynamic Voltage Scaling, Enable, I2C, Light Load Efficiency, Multiple Outputs, Output Discharge, Phase Interleaving, Power Good, Remote Sense, Synchronous Rectification |
| Shutdown current (ISD) (Typ) (uA) | 1 |
| Switching frequency (Typ) (kHz) | 3000 |
| Configurability | Factory programmable, Software configurable |
- 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)
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 DC-DC 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.
