Power & Power Management

Overview

The PV88080 power management integrated circuit (PMIC) provides one PWM buck controller and three adjustable synchronous buck regulators. The high voltage buck controller can optionally be used to generate the supply for the other three buck converters. Two pass devices (NMOS FET) for the high side and low side of the high voltage buck controller are external which allows the majority of the buck controller power dissipation to be outside the PV88080. This high voltage buck controller uses a constant on-time (COT) control scheme with an integrated bootstrap PMOS switch.

In certain applications, multiple PV88080s can be used together to provide enough power rails to power the larger systems. There are three buck converters that can be used to generate the supplies for CPUs, DDR memory and other auxiliary functions in a typical application. The pass devices of these buck converters are fully integrated, so no external FETs or Schottky diodes are needed. This results in optimized power efficiency and a reduced external component count.

Benefits

  • 50% reduction in board area
  • High integration of rails in single package
  • Re-programmability = Fast re-design
  • Slew rate control improved PCB cost/performance
  • Dynamic Voltage Scaling (DVS) for enhanced performance/power scaling
  • Significantly fewer devices and discretes
PV88080 Block Diagram
PV88080 Block Diagram
  • One high-voltage synchronous buck controller with:
    • Wide VIN range, 7V to 26V
    • Programmable VOUT (0.8V to 5.25V when VIN <13.2V, 1.8V to 5.25V when VIN >13.2V)
    • Up to 20A IOUT depending on external MOSFET
  • Three synchronous buck converters with integrated low RON FET:
    • Buck1: programmable VOUT from 0.75V to 3.3V with 5A continuous output current, and 6A peak current standalone
    • Buck2: programmable VOUT from 0.9V to 3.6V with 2A continuous output current and 3A peak current  standalone
    • Buck3: programmable VOUT from 0.9V to 3.6V with 2A continuous output current and 3A peak current standalone
  • DVC on buck controller and buck converters
  • Auto mode on all buck converters, adjustable soft-start, and I2C-compatible interface
  • GPIO to connect/control the other device
  • Register-selectable multiple function: mute, reset timer, external thermal sense, and lower input voltage alarm
  • -40 °C to +85 °C ambient temperature 
  • Package: 32-pin QFN

Applications

  • Networking home terminals
  • Wi-Fi EAP/routers
  • Supply for digital television processors
  • Power supply for digital set-top boxes (STB)

Documentation

Type Title Date
Datasheet
PV88080 Datasheet
PDF 3.22 MB
Brochure
Industrial Power Management Brochure
PDF 5.51 MB 日本語
Application Note
AN-PV-005 Voltage Rail Sequencing
PDF 873 KB
Application Note
AN-PV-006 Dynamic Voltage Control
PDF 696 KB
Application Note
Shared IRQ Line Considerations AN-PM-059
PDF 267 KB
Schematic
PV88080 Demo Kit Schematic
PDF 85 KB
Schematic
PV88080 Evaluation Board
PDF 91 KB
Application Note
AN-PV-001 Power Sub-System Design Using the PV88080
PDF 312 KB
Application Note
AN-PV-002 Power Fail Detection and Audio Muting Using the PV88080
PDF 529 KB
Application Note
AN-PV-003 Temperature Sensing Using the PV88080
PDF 586 KB
Application Note
AN-PV-004 Dynamically Changing the Output PV88080 Voltage
PDF 745 KB
Product Brief
PV88080 Product Brief
PDF 426 KB
12 items

Design & Development

Software Downloads
Type Title Date
Software & Tools - Software
PV88080 GUI and documentation
ZIP 54.19 MB
1 item

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Buy / Sample
    Part Number
    PV88080-001FR2
    warningNRND
    memory
    view_in_ar
    		32-FC-MCQFN Tape & Reel
    PV88080-006FR2
    warningNRND
    memory
    view_in_ar
    		32-FC-MCQFN Tape & Reel
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