MAX687 Datasheet (Maxim) - High-Accuracy / Low-Dropout Linear Regulators

MAX687, High-Accuracy / Low-Dropout Linear Regulators

The MAX687/MAX688/MAX689 low-dropout linear regulators operate with an input-to-output voltage differential limited only by an external PNP transistor.

Outputs are fixed at 3.3V (MAX687/MAX688) or 3.0V (MAX689).

The only external components required are a PNP pass transistor and output, compensation

MAX687 Features

* o Fixed Outputs: 3.3V (MAX687/MAX688) 3.0V (MAX689) o Directly Drives External PNP Transistor o 10mA Min Base-Current Drive for >1A Output o Low Dropout Voltage: 100mV Dropout at 650mA Output (FZT749) 40mV Dropout at 200mA Output (FZT749) 0.8V Dropout at 4A Output o Power-Fail Output Monitors the Ou