回到顶部

Ultra Configurable PMIC Featuring 93% Peak Efficiency Single-Inductor, 3-Output Buck-Boost, 1-LDO for Long Battery Life

3 x SIMO Outputs With a Peak Efficiency of 93%

产品详情

主要特征

应用/用途

Parametric specs for Multifunction PMICs
VIN (V) (min) 2.7
VIN (V) (max) 5.5
# LDO Outputs 1
VOUT (V) (min) 0.5
VOUT (V) (max) 5.5
Package/Pins THIN WLP/25
Budgetary
Price (See Notes)
1.8
查看更多

简化框图

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

参量

Parametric specs for Multifunction PMICs
VIN (V) (min) 2.7
VIN (V) (max) 5.5
# LDO Outputs 1
VOUT (V) (min) 0.5
VOUT (V) (max) 5.5
Package/Pins THIN WLP/25
Budgetary
Price (See Notes)
1.8

主要特征

  • Highly Integrated
    • 3x Output, Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator
      • Supports Wide Output Voltage Range from 0.5V to 5.5V for all SIMO Channels
    • 1x 150mA LDO
      • 100mA in LSW mode
    • 2x GPIOs (MAX77643)
    • Watchdog Timer (MAX77643)
  • Ultra Low-Power SIMO​
    • 5μA Operating Current (3x SIMO Channels + 1x LDOs)
    • 1μA Operating Current per SIMO Channel
    • 0.3μA Shutdown Current
    • 93% Peak Efficiency in Boost-Only Mode
    • 91% Peak Efficiency in Buck-Only Mode
    • Less Than 20mVpp Output Ripple at VOUT = 1.8V
    • Automatic Low-Power Mode to Normal-Power Mode Transition
  • Flexible and Configurable
    • Ultra-Configurable Resistor Programmable Output Voltages (MAX77642)
    • I2C-Programmable Output Voltages (MAX77643)
  • Small Size
    • 4.24mm2 Wafer-Level Package (WLP)
    • 25-Bump, 0.4mm Pitch, 5 x 5 Array

应用/用途

  • Next Generation Hearables
  • Fitness, Health, and Activity Monitors
  • Safety and Security Monitors
  • Portable Consumer Devices

描述

The MAX77642/MAX77643 provide power supply solutions for low-power applications where size and efficiency are critical. The IC features a SIMO buck-boost regulator that provides three independently programmable power rails from a single inductor to minimize total solution size. A 150mA LDO provides ripple rejection for audio and other noise-sensitive applications. The LDO can also be configured as load switches to manage power consumption by disconnecting external blocks when not required.

The MAX77642's SIMO and LDO output voltages are individually programmable through resistors. A peak current limit input is used to set both the inductor's peak current limits of the device with a single resistor. Individual enable pins combined with the flexible resistor programmability allows the device to be tailored for many applications.

This MAX77643's SIMO and LDO output voltages are individually programmable through I2C and in addition, includes two GPIOs with alternate modes for scalability. A bidirectional I2C serial interface allows for configuring and checking the status of the devices. An internal on/off controller provides a controlled startup sequence for the regulators and provides supervisory functionality while they are on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market.

简化框图

MAX77642, MAX77643: Typical Application Circuit MAX77642, MAX77643: Typical Application Circuit Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心