General Description
The MAX1982/MAX1983 are low-voltage, low-dropout linear regulators with an external bias supply input. The 5V bias supply drives the gate of the internal N-channel pass transistor, making these devices ideal for applications that require low-voltage outputs from low-voltage inputs. The MAX1982 delivers 1.2V (±3%) at 300mA from an input voltage of 1.25V to 5.5V. The MAX1983 delivers an adjustable output voltage from 0.8V to 2V.

Features
♦ Low-Cost 1.2V, 300mA VID Supply
♦ ±3% Output Voltage Accuracy
♦ No Minimum Load Current Required
♦ 1.25V to 5.5V Input Supply Voltage
♦ 5V Input Bias Supply Voltage
♦ Power-Good (PGOOD) Open-Drain Output with 1ms Rising Edge Propagation Delay (MAX1982)
♦ Adjustable Output Voltage (MAX1983)
♦ Low Supply Current (IBIAS + IIN = 165µA typ)
♦ 5µA (max) Shutdown Supply Current
♦ Tiny 6-Pin SOT23 Package

Applications
    Notebook Computers
    VID Power Supplies
    PDAs
    Cell Phones
    Low-Dropout Regulators with External Bias Supply