ADP3303A

High Accuracy Over Line and Load: 60.8% @ +25, 61.4% Over Temperature Ultralow Dropout Voltage: 150 mV Typical @ 200 mA Requires Only CO = 1F for Stability anyCAP = Stable with All Types of Capacitors (Including MLCC) Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 1A 3.2 V to 12 V Supply Range Adjustable 2.2 V to 10 V Output Range 20 to +85 Ambient Temperature Range Thermally Enhanced TSSOP-14 Package

Input Supply Voltage . . . . . . . . . . . . . . . . . . . 0.3 V to +16 V
Shutdown Input Voltage . . . . . . . . . . . . . . . . 0.3 V to +16 V
Error Flag Output Voltage . . . . . . . . . . . . . . . 0.3 V to +16 V
Noise Bypass Pin Voltage . . . . . . . . . . . . . . . . 0.3 V to +5 V
Power Dissipation . . . . . . . . . . . . . . . . . . ... Internally Limited
Operating Ambient Temperature Range . . 55°C to +125°C
Operation Junction Temperature Range . . 55°C to +125°C
qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....96°C/W
Storage Temperature Range . . . . . . . . . . .65°C to +150°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . +300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . ....+215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . ...... +220°C

The ADP3303A is a member of the ADP330x family of precision low dropout anyCAP voltage regulators. The ADP3303A stands out from conventional LDOs with a novel architecture, an enhanced process and a new package. Its patented design requires only a 1 mF output capacitor for stability. This device is insensitive to output capacitor ESR (Equivalent Series Resistance), and is stable with any good quality capacitor, including ceramic types (MLCC) for space restricted applications. The ADP3303A achieves exceptional accuracy of ±0.8% at room temperature and ±1.4% overall accuracy over temperature, line and load variations. The dropout voltage of the ADP3303A is only 150 mV (typical) at 200 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 an external heat sink or large copper surface on the PC board. This keeps PC board real estate to a minimum and makes the ADP3303A very attractive for use in portable equipment.

The ADP3303A operates over an input voltage range of 3.2 V to 12 V and delivers a load current in excess of 200 mA. The output voltage can be adjusted from 2.2 V to 10 V using an external resistor divider. It also features an error flag that signals when the device is about to lose regulation or when the short circuit or thermal overload protection is activated. Other features include shutdown and optional noise reduction capabilities.