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MAX667：+5V Programmable, Low-Dropout Voltage Regulator

The MAX667 low-dropout, positive, linear voltage regulator supplies up to 250mA of output current. With no load, it has a typical quiescent current of 20µA. At 200mA of output current, the input/output voltage differential is typically 150mV. Other features include a low-voltage detector to indicate power failure, as well as early-warning and low-dropout detectors to indicate an imminent loss of output voltage regulation. A shutdown control disables the output and puts the circuit into a low quiescent-current mode. The MAX667 employs Dual Mode™ operation. One mode uses internally trimmed feedback resistors to produce +5V. In the other mode, the output may be varied from +1.3V to +16V by connecting two external resistors. The MAX667 is a pin-compatible upgrade to the MAX666 in most applications where the input voltages are above +3.5V. Choose the MAX667 when high output currents and/or low dropout voltages are desired, as well as for improved performance at higher temperatures.

Key Features 350mV Max Dropout at 200mA 250mA Output Current Normal Mode: 20µA Typ Quiescent Current Shutdown Mode: 0.2µA Typ Quiescent Current Low-Battery Detector Fixed +5V (Min Component Count) or Adjustable Output +3.5V to +16.5V Input Dropout Detector Output 10µF Output Capacitor

MAX667: Typical Operating Circuit Applications/Uses Automotive Electronics Pagers and Radio Control Receivers Portable Instrumentation Solar-Powered Instruments

DataSheet

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Quality and Environmental Data

• MAX667.pdf

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