MAX889RESA - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX889RESA

Manufacturer

Analog Devices

Introduction

The MAX889RESA is a compact, efficient, negative voltage DC-DC charge pump regulator.

Product Features and Performance

Adjustable negative voltage output

Step-down (buck) charge pump topology

High switching frequency at 500kHz

Output current capability up to 200mA

Wide range input voltage from 2.7V to 5.5V

Capable of generating output voltages from -2.5V to -5.5V

Works in a wide operating temperature range of -40°C to 85°C

Product Advantages

No need for an inductor, simplifying design and saving space

High efficiency in comparison to linear regulators for negative voltages

Minimal external components required

Suitable for battery-powered applications with low input voltage

Key Technical Parameters

Voltage Input (Min): 2.7V

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): -2.5V

Voltage Output (Max): -5.5V

Current Output: 200mA

Frequency Switching: 500kHz

Operating Temperature: -40°C ~ 85°C (TA)

Quality and Safety Features

Built-in thermal overload protection

Short-circuit protection

ESD protection

Compatibility

Compatible with various microcontrollers and digital ICs requiring a negative supply voltage

Surface mount 8-SOIC package compatible with standard PCB manufacturing processes

Application Areas

Battery-powered devices

Portable electronics

Negative voltage rails for op-amps and data converters

Medical devices with low power requirements

Product Lifecycle

Product Status: Active

No known discontinuation date, with ongoing support and production

Several Key Reasons to Choose This Product

Highly efficient for portable applications

Does not require inductors, enabling compact circuit design

Simplified design with adjustable output for flexibility in multiple applications

Reliable performance with built-in protection features

Support and quality assurance from reputable manufacturer Analog Devices

Continued product lifecycle with no current plans for discontinuation, ensuring long-term availability