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MAX8594 Datasheet 5-Output PMICs with DC-DC Core Supply

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The MAX8594/MAX8594A complete power-management chips for low-cost personal digital assistants (PDAs) operates from a 1-cell lithium-ion (Li+) or 3-cell NiMH battery.

They include all regulators, outputs, and voltage monitors necessary for small portable devices while requiring a bare minimum of external components.

Featured are three linear regulators, a boost DCDC converter for LCD bias, an efficient 4MHz buck DC-DC converter for core power, a microprocessor (µP) reset output, and low-battery shutdown in a 0.8mm high thin QFN package.

Overview

19-3349; Rev 2; 4/05 www.DataSheet4U.com 5-Output PMICs with DC-DC Core Supply for Low-Cost.

Key Features

  • an onboard MOSFET and True Shutdown™ when off. This means that during shutdown, input power is disconnected from the inductor so the boost output falls to 0V rather than remaining one diode drop below the input voltage. A µP reset output clears 20ms (typ) after the COR1 output achieves regulation to ensure an orderly start. In addition, the COR1 regulator is not started until the 3.3V main output is in regulation. Also included are a 1% accurate reference and low-battery monitor. Thermal shutdow.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX8594A 5-Output PMICs with DC-DC Core Supply
MAX8595X High-Efficiency 36V Step-Up Converters
MAX8596X High-Efficiency 36V Step-Up Converters
MAX8597 Low-Dropout Wide-Input-Voltage Step-Down Controllers
MAX8598 Low-Dropout Wide-Input-Voltage Step-Down Controllers
MAX8599 Low-Dropout Wide-Input-Voltage Step-Down Controllers
MAX8510 Ultra-Low-Noise High PSRR Low-Dropout 120mA Linear Regulators
MAX8511 Ultra-Low-Noise High PSRR Low-Dropout 120mA Linear Regulators
MAX8512 Ultra-Low-Noise High PSRR Low-Dropout 120mA Linear Regulators
MAX8513 Triple-Output Supplies