MAX843ISA - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX843ISA

Manufacturer

Maxim Integrated

Introduction

The MAX843ISA is a high-efficiency, low-noise charge pump that generates a negative voltage from a positive input supply.

Product Features and Performance

High efficiency up to 95%

Low noise operation

Generates a negative output voltage from a positive input supply

Adjustable output voltage from -1.5V to -5V

Internal oscillator and charge pump capacitors

Shutdown mode for low power consumption

Stable operation over a wide input voltage range of 2.5V to 10V

Operating temperature range of -40°C to +85°C

Product Advantages

Efficient power conversion

Low noise output

Flexible output voltage adjustment

Low power consumption in shutdown mode

Wide input voltage range

Key Technical Parameters

Input Voltage Range: 2.5V to 10V

Output Voltage: -1.5V to -5V

Efficiency: Up to 95%

Quiescent Current: 100μA (typical)

Shutdown Current: 0.1μA (typical)

Operating Temperature Range: -40°C to +85°C

Quality and Safety Features

RoHS non-compliant

8-SOIC package

Compatibility

The MAX843ISA is designed for use in charge pump and cellular telephone transmitter applications.

Application Areas

Charge pump circuits

Cellular telephone transmitters

Product Lifecycle

The MAX843ISA is an active product and is not nearing discontinuation. Replacements or upgrades may be available from Maxim Integrated.

Several Key Reasons to Choose This Product

Efficient power conversion with up to 95% efficiency

Low noise output for sensitive applications

Flexible output voltage adjustment from -1.5V to -5V

Low power consumption in shutdown mode

Wide input voltage range of 2.5V to 10V

Stable operation over the -40°C to +85°C temperature range