●The REG102 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 150mV 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.
●Typical ground pin current is only 600µA (at IOUT = 250mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.
●The REG102 has very low output noise (typically 28µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (40°C to +85°C).
●The REG102 is well protectedinternal circuitry provides a current limit that protects the load from damage; furthermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG102 is available in the SOT23-5, SOT223-5, and SO-8 packages.
● NEW DMOS TOPOLOGY:
● Ultra Low Dropout Voltage:
● 150mV typ at 250mA
● Output capacitor _not_ Required for Stability
● FAST TRANSIENT RESPONSE
● VERY LOW NOISE: 28 µVrms
● HIGH ACCURACY: ±1.5% max
● HIGH EFFICIENCY:
● IGND = 600 µA at IOUT = 250mA
● Not Enabled: IGND = 0.01 µA
● 2.5V, 2.8V, 2.85V, 3.0V, 3.3V, 5.0V AND ADJUSTABLE OUTPUT VERSIONS
● OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
● FOLDBACK CURRENT LIMIT
● THERMAL PROTECTION
● SMALL SURFACE-MOUNT PACKAGES:
● SOT23-5, SOT223-5, and SO-8
● APPLICATIONS
● PORTABLE COMMUNICATION DEVICES
● BATTERY-POWERED EQUIPMENT
● PERSONAL DIGITAL ASSISTANTS
● MODEMS
● BAR-CODE SCANNERS
● BACKUP POWER SUPPLIES
●All trademarks are the property of their respective owners.
