MAX8727ETB+T

Overview

The MAX8727ETB+T is a low-noise boost DC-DC converter designed to provide high-voltage analog power for active matrix LCDs. It integrates an n-channel MOSFET and a fixed-frequency, current-mode PWM controller. The device operates from a single supply voltage of 2.7V to 5.5V. It features a shutdown mode with typical quiescent current of 1µA. The converter supports switching frequencies up to 1.2MHz. It is housed in a 10-pin TSSOP package.

Feature Summary

• Integrates a low RDS(on) n-channel MOSFET for high efficiency
• Provides low-noise output suitable for sensitive analog LCD loads
• Utilizes current-mode control for fast transient response
• Includes shutdown functionality to minimize standby power consumption

Applications

• Active Matrix Liquid Crystal Displays (AMLCD)
• Point inversion TFT-LCD panels
• Portable electronic devices requiring LCD bias generation

Procurement Notes

Verify the specific suffix ETB against the manufacturer datasheet to confirm pinout and thermal characteristics. Confirm RoHS compliance status as indicated by the plus sign in the part number. Check for obsolescence notices or lifecycle status updates directly from Analog Devices documentation before finalizing procurement plans.

Selection Notes

Select this component when designing power supplies for AMLCD applications requiring low noise performance. Ensure the input voltage range matches the system battery or rail specifications. Consider the maximum output voltage requirements of the target display panel to ensure the boost converter can reach the necessary VCOM and AVDD levels efficiently.

Part Context

This device belongs to the Maxim Integrated LCD driver and power management family. It complements gate and source drivers by providing the necessary high-voltage rails. The MAX8727 series is engineered specifically for portable electronics where space and power efficiency are critical constraints for display subsystems.

Replacement Considerations

Consult official cross-reference lists for direct replacements. Verify that any substitute maintains the same TSSOP-10 footprint and electrical characteristics. Ensure compatibility with existing PCB layouts and control signals.