MAX1044CPA+
Overview
The MAX1044CPA+ is a monolithic CMOS switched-capacitor voltage converter that can invert, double, divide, or multiply an input voltage. It is widely used to generate a negative supply rail from a single positive input, supporting an input range of 1.5V to 10V. This 8-DIP package version is particularly popular in prototyping and low-power analog circuits where a dual-polarity supply is required from a single battery or DC source.
Why Choose This Part
It offers high efficiency and requires only two external capacitors for standard inversion, eliminating the need for bulky inductors. The inclusion of a BOOST pin allows engineers to increase the internal switching frequency from 10kHz to higher levels, effectively moving switching noise out of the sensitive audio band.
Applications
Key Specifications
Getting Started
To use this in an inversion circuit, connect the input voltage to Pin 8 and ground Pin 3, while placing 10uF electrolytic capacitors between Pin 2 and Pin 4, and Pin 5 and ground. Ensure the BOOST pin (Pin 1) is tied to V+ if you need to increase the switching frequency for noise-sensitive applications. Because this is a DIP-8 package, it is directly compatible with standard 0.1 inch pitch breadboards and sockets.
