MAX77387 MAX77387EWP Switching Regulators 2A Flash Driver IC

Details

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FEATURES

Input Supply of 2.5V to 5.5V with Full Functionality

Dual-Phase Interleave Step-Up DC-DC Converter

True Shutdown Output

2A Guaranteed Output Current for VIN > 2.7V and VOUT P 4.0V

Adaptive Output Voltage Regulation to Ensure

Industry’s Highest System Efficiency

Over 90% Peak Efficiency

3.125% Minimum Duty Cycle

Skip Mode Capable

On-Chip Power MOSFET and Synchronous Rectifier

Up to 4MHz PWM Switching Frequency per Phase

Small 0.47FH Inductor per Phase

High-Side Torch/Flash LED Current Regulator

I2C Programmable Flash Output Current(15.625mA to 1000mA in 15.625mA Steps)

I2C Programmable Torch Output Current(3.91mA to 250mA in 3.91mA Steps for NonPWM

dimming) (125mA to 1000mA in 125mA

Steps for PWM Dimming with Programmable

Duty Cycle from 3.125% to 25% in 3.125% steps)

Low-Dropout Voltage (80mV typ) at 1000mA

I2C-Programmable Flash Safety Timer

I2C-Programmable Torch Safety Timer and Optional Disabled Torch Timer

Dual Independent TX_MASK Inputs for Limiting Flash Current During Tx Events

Open/Shorted LED Detection

NTC Monitoring for LED Protection

Overvoltage Protection

MAXFLASH 2.0 Preventing System Undervoltage Lockup

Thermal Shutdown Protection

< 1µA Shutdown Current

20-Bump, 0.4mm Pitch 2.1mm x 1.73mm WLP