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Analog Devices / Maxim Integrated MAX77826 电源管理集成电路

美信集成 MAX77826 是分电源管理集成电路，适用于最新的 3G/4G 智能手机和平板电脑。MAX77826 具有一个高效率降压调节器、一个降压-升压调节器和 15 个给外设供电的 LDO。MAX77826 还提供上电/断电控制逻辑和一个 I2C 串行接口，以设定单个调节器的输出电压和打开/关闭控制，从而实现充分的灵活性。

The MAX77826 also provides power on/off control logic and an I2C serial interface to individual program regulator output voltages and on/off control for complete flexibility.

The linear regulators support a remote cap feature, providing greater than 70dB PSRR and less than 45μVRMS noise. The MAX77826 features I2C-compatible, 2-wire serial interface that comprises a bidirectional serial data line (SDA) and a serial clock line (SCL).

The Analog Devices MAX77826 supports SCL clock rates up to 3.4MHz.

特性

  • Compact total solution size allows more peripheral devices in smartphones and tablets
    • 3A high-efficiency buck regulator
      • DVS (Dynamic Voltage Scaling) through HS I2C
      • ±1% (typ.) output voltage DC accuracy
      • Low power mode
    • 2A buck boost regulator
    • 15 linear regulators with remote cap
      • 3 NMOS LDOs (VOUT range: 0.6V to 2.1875V with 12.5mV step)
      • 1 x 150mA
      • 1 x 450mA
      • 1 x 600mA
    • 6 PMOSLV LDOs (VOUT range: 0.8V to 3.975V with 25mV step)
      • 3 x 150mA
      • 3 x 300mA
    • ±1.5% typical output voltage DC accuracy
    • 70dB PSRR at 1kHz
    • Low power mode with 2μA (typ) for all LDOs
  • Simple management of power-up/down sequence, output voltage setting, and fault detection
    • High-speed (up to 3.4MHz) I2C serial interface

Block Diagram

Analog Devices / Maxim Integrated MAX77826 电源管理集成电路

MAX77826 Evaluation Kit

MAX77826 Evaluation Kit is a fully assembled and tested PCB that evaluates the MAX77826 power-management IC. The MAX77826 includes 1 BUCK regulator, 1 BUCK-BOOST regulator, 15 LDOs (3 NMOS LDOs and 12 PMOS LDOs), and an I2C Interface. The I2C interface supports output-voltage settings, turning on/off of all regulators and reading interrupt/status registers.
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发布日期: 2015-07-21 | 更新日期: 2023-04-13