概览

The DA9233 is a high-efficiency, ultra-low quiescent current buck regulator and ultra-low quiescent current LDO in a compact I2C configurable WLCSP package. The buck regulator also features ultra-low output ripple (<10mV). It targets battery-powered applications needing low ripple and highly efficient power supplies.

The buck regulator extends high light-load efficiency down to 20μA further extending battery life. Dynamic Voltage Control (DVC) in the buck regulator facilitates optimization across the system power modes enabling further improvement in system efficiency and battery life.

The low quiescent current LDO can be configured as a load switch and provides the second supply output. The LDO’s uncommitted inputs can be connected to either the battery or the buck output. Connecting the input to the buck output provides the flexibility to improve the PSRR at the LDO output as needed.

DA9233 provides multiple protection features and comes with the ability to monitor the events and indicators in the GPO pin. 

Benefits

  • <10mV output ripple exceeds requirements for powering GPS chipsets in wearable devices
  • Low quiescent current PMIC extends battery life
  • Integration of buck regulator and LDO reduces board area while providing the total solution for GPS chipsets
  • Dynamically programmable output voltage optimizes performance in operating modes and extends battery life in storage modes
DA9233 Block Diagram
DA9233 Block Diagram
  • 2.5V to 5.5V operating range
  • 750nA total input current (buck enabled, no load)
  • Up to 80% efficiency at 1.8V output, 20μA load currents
  • Output voltage 0.6V to 1.9V
  • Dynamic Voltage Control (DVC)
  • 100mA LDO/load switch
  • Ultra-low quiescent current
  • Input voltage 1.8V to 5.5V
  • Output voltage 0.7V to 3.3V
  • I2C interface for device configuration and control
  • Protection features and system monitors
  • Package: 12-pin WLCSP (1.65mm x 1.25mm x 0.5mm)

应用

  • Fitness trackers
  • Smartwatches
  • Wireless headphones
  • Portable medical
  • Personal health monitors
  • Portable gaming
  • Wireless earbud cradles
  • Home automation

文档

= 相关文档
类型 文档标题 日期
数据手册
DA9233 Datasheet
PDF 870 KB
手册
Power Products Brochure
PDF 8.73 MB
应用文档
Shared IRQ Line Considerations AN-PM-059
PDF 267 KB
3 items

设计和开发

软件下载
类型 文档标题 日期
软件和工具 - 软件
DA923x GUI
登录后下载 ZIP 78.22 MB
1 item

ECAD 模块

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.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    购买 / 样片
    器件号
    DA9233-A1VZ2
    circle有效
    memory
    view_in_ar
    		12-WLCSP Tape & Reel 1
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