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MAX8718 Datasheet (max8718 / Max8719) High-voltage / Low-power Linear Regulators For Notebook Computers

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-3495; Rev 0; 11/04 High-Voltage, Low-Power Linear Regulators for Notebook.

General Description

The MAX8718/MAX8719 are micropower, 8-pin TDFN linear regulators that supply always-on, keep-alive power to CMOS RAM, real-time clocks (RTC), and microcontrollers in systems with high-voltage batteries.

The circuits consist of a 100mA linear regulator and a power-good comparator (PGOOD) with fixed-output delay.

Key Features

  • include wide input voltage range, low-dropout voltage, and low-quiescent supply current. Despite a miserly 25µA (max) no-load quiescent current, the MAX8718/MAX8719 have good line- and loadtransient response and excellent AC power-supply rejection. They provide a clean fixed 5V or 3.3V output (MAX8718), or an adjustable 1.24V to 28V output (MAX8719), even when subjected to fast supply-voltage changes that occur during the switchover from battery to AC-adapter input power. The space-saving TDFN p.

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