MAX77816

High-Efficiency Buck-Boost Regulator with 5A Switches

98% Efficiency Buck Boost with I2C Interface Delivering >3A of Continuous Output Current


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说明

The MAX77816 is a high-current, high-efficiency buck-boost regulator targeting single-cell Li-ion battery-powered applications. It supports a wide output voltage range from 2.60V to 5.14V. The IC allows 5A (TYP) maximum switch current. In buck mode, the output current can go as high as 4A, and in boost mode, the maximum output current can be 3A. A unique control algorithm allows high efficiency, outstanding line/load transient response, and seamless transition between buck and boost modes.

The IC features I2C-compatible serial interface. The I2C interface allows the output voltage to be dynamically adjusted thus enabling finer control of system power consumption. The I2C interface also provides features such as enable control and device status monitoring.

The multifunction GPIO pin is register settable to 5 different options such as FPWM mode enable and inductor peak current level selection. These options provide design flexibility that allows the IC to cover a wide range of applications and use cases.

Design Solution: Boost the Run-Time of Portable Electronics with a One-Two Punch ›

MAX77816: Typical Application Circuit MAX77816:Typical Application Circuit 放大+

关键特性

  • Buck and Boost Operation Including Seamless Transition between Buck and Boost Modes
    • 2.3V to 5.5V VIN Range
    • 2.60V to 5.14V VOUT with 20mV Step
    • 3A Minimum Continuous Output Current (VINBB ≥ 3.0V, VOUTBB = 3.3V)
    • Burst Current: 3.6A Minimum Output Current for 800μs (VINBB ≥ 3.0V, VOUTBB = 3.3V)
  • I2C Serial Interface Allows Dynamic VOUT Adjustment and Provides Design Flexibility
  • 97.5% Peak Efficiency
  • 40µA Quiescent Current
  • Safety Features Enhance Device and System Reliability
    • Soft-Start
    • True Shutdown
    • Thermal Shutdown and Short-Circuit Protection
  • Multifunction GPIO Pin
    • MAX77816A/F: FPWM Mode Enable
    • MAX77816B: Inductor Peak Current-Limit selection
    • MAX77816C: Output Voltage Selection
    • MAX77816D: Power-OK indicator
    • MAX77816E: Interrupt Indicator
  • Small Size: 1.827mm × 2.127mm, 20-Bump WLP, 0.4mm Pitch

应用

  • 电池供电应用
  • null
  • 智能手机和平板电脑
  • 可穿戴设备
  • null
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
VOUT1 Tolerance
(±%)
IOUT1
(A)
IOUT1
(A)
Output Adjust. MethodSwitch TypeSynchronous SwitchingPower Good SignalICC
(mA)
DC-DC OutputsAlternate TopologyOper. Freq.
(kHz)
Design ToolsPackage/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxminmaxmaxSee Notes
MAX77816 2.35.52.65.143.4133PresetInternalYesYes51
Step-Down
Step-Up
2500EE-Sim
WLP/20
-40 to +85$1.05 @1k
查看所有Step-Down/Up Switching Regulators (31)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX77816EVKIT: MAX77816 评估板

工具和模型

  • EE-Sim: MAX77816 设计和仿真
  • MAX77816 SIMPLIS Schematic
  • CAD Symbols and Footprints

  • MAX77816AEWP+
  • MAX77816AEWP+T
  • MAX77816BEWP+
  • MAX77816BEWP+T
  • MAX77816CEWP+
  • MAX77816CEWP+T
  • MAX77816DEWP+
  • MAX77816DEWP+T
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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