MAX77887中文资料Nano Power Buck-Boost with Input Voltage Monitor数据手册ADI规格书

描述 Description

The MAX77887 is a high-efficiency nano power buckboostconverter with an input voltage monitoring feature,ensuring that the battery voltage does not drop belowthe pre-set threshold levels to protect the battery.

The converter operates on an input supply between 1.8Vand 5.5V. Output voltage between 1.8V and 5.2V isconfigured through a resistor connected to the hardwarecontrol pin, RSEL1. It can operate in CCM, Skip, and LowPower Mode to ensure maximum efficiency over a widerange of load currents.

MAX77887 offers two unique hardware control pinsRSEL1 and SEL2. The resistor connected at SEL1(RSEL1) selects the predefined output voltage from 1.8Vto 5.2V as OUT. The resistor connected at SEL2(RSEL2) allows the configuration of two differentSwitching Current Limit (ILIM) levels and 16 InputVoltage Monitoring Threshold levels.

The MAX77887 is available in 1.36mm x 1.36mm, 9-bump, 0.4mm pitch, wafer-level package (WLP).

APPLICATIONS

LPWAN SoC Companion Power Solution IoT and Wearable Applications Asset Trackers Smart Meters

特性 Features

• 1.8V to 5.5V Input Voltage•Output Voltage from 1.8V to 5.2V•Peak Efficiency of 92.5% (5.5VIN, 3.8VOUT)•430nA Typical Quiescent Current•10nA Shutdown Current•RSEL Configurations
• Output Voltage•400mA/200mA Switching Current Limit
• 16 Input Voltage Monitoring Threshold Levels