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MAX1644 Datasheet Advanced Chemistry-independent / Level 2 Battery Charger

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-1457; Rev 3; 8/05 w The MAX1644 constant-off-time, PWM step-down DCDC converter is ideal for use in applications such as PC cards, CPU daughter cards, and desktop puter bus-termination boards.

General Description

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Key Features

  • internal synchronous rectification for high efficiency and reduced component count. It requires no external Schottky diode. The internal 0.10Ω PMOS power switch and 0.10Ω NMOS synchronous-rectifier switch easily deliver continuous load currents up to 2A. The MAX1644 produces a preset +3.3V or +2.5V output voltage or an adjustable output from +1.1V to VIN. It achieves efficiencies as high as 95%. w m o c . 2A, Low-Voltage, Step-Down Regulator with U 4 t Synchronous Rectification and Internal Sw.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX1640 Adjustable-Output / Switch-Mode Current Sources
MAX1641 Adjustable-Output / Switch-Mode Current Sources
MAX1642 High-Efficiency / Step-Up DC-DC Converters for 1V Inputs
MAX1643 Step-Up DC-DC Converters
MAX1645 Level 2 Battery Chargers
MAX1647 Chemistry-Independent Battery Chargers
MAX1648 Chemistry-Independent Battery Chargers
MAX1649 Step-Down DC-DC Controllers
MAX160 uP Compatible 8 Bit A/D Converter
MAX1600 Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks

MAX1644 Distributor