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