The Texas Instruments REG113 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low-dropout voltage (only 250mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1μF.

CAP-FREE DMOS TOPOLOGY:
Ultra Low Dropout Voltage: 250mV typ at 400mA, Output capacitor not required for stability
UP TO 500mA PEAK, TYPICAL
FAST TRANSIENT RESPONSE
VERY LOW NOISE: 28 μVrms
HIGH ACCURACY: ±1.5% max
HIGH EFFICIENCY:IGND = 850 μA at IOUT = 400mA
Not Enabled: IGND = 0.01 μA
2.5V, 2.85V, 3.0V, 3.3V, AND 5.0V OUTPUT VERSIONS
OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
FOLDBACK CURRENT LIMIT
THERMAL PROTECTION
SMALL SURFACE-MOUNT PACKAGES:
SOT23-5 and MSOP-8

RS-485 Line Drivers and Receivers