ADP3301ARZ-5

The ADP3301 is a member of the ADP330x family of precision low dropout any CAPTM* voltage regulators. The ADP3301 stands out from the conventional LDOs with a novel architecture, an enhanced process and a new package. Its patented design includes a noninverting wideband driver and a stage that permits the use of an internal “pole splitting” capacitor to stabilize the feedback loop with a single output capacitor as small as 0.47 μF. This device is stable with any type of capacitor regardless of its ESR (Equivalent Serial Resistance) value, including ceramic types (MLCC) for space restricted applications. The ADP3301 achieves exceptional accuracy of ±0.8% at room temperature and ±1.4% overall accuracy over temperature, line and load regulations. The dropout voltage of the ADP3301 is only 100 mV (typical) at 100 mA. In addition to the new architecture and process, ADI’s new proprietary thermally enhanced package (Thermal Coastline) can handle 1 W of power dissipation without external heat sink or large copper surface on the PC board. This keeps PC board real estate to a minimum and makes the ADP3301 very attractive for use in portable equipment.

Applications

• Cellular Telephones
• Notebook, Palmtop Computers
• Battery Powered Systems
• Portable Instruments
• Post Regulator for Switching Supplies
• Bar Code Scanners

Key features

• High Accuracy (Over Line and Load Regulations at +25°C): ±0.8%
• Ultralow Dropout Voltage: 100 mV Typical @ 100 mA
• Requires Only C₀ = 0.47 μF for Stability
• anyCAPTM* = Stable with All Types of Capacitors
• Current and Thermal Limiting
• Low Noise
• Dropout Detector
• Low Shutdown Current: 1 μA
• Several Fixed Voltage Options
• 3.0 V to 12 V Supply Range
• -20°C to +85°C Ambient Temperature Range
• Thermally Enhanced SO-8 Package
• Excellent Line and Load Regulations