LDO Regulator Pos 2.8V 0.3A 6-Pin TSOT-23 T/R

The Si91846 is a 150-mA CMOS LDO (low dropout) voltage regulator. It is the perfect choice for low voltage, low power applications. An ultra low ground current and ultra fast turn-on make this part attractive for battery operated power systems. The Si91846 also offers ultra low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source will benefit from the Si91846’s low output noise. The Si91846 is designed to maintain regulation while delivering 300-mA peak current, making it ideal for systems that have a high surge current upon turn-on.For better transient response and regulation, an active pull-down circuit is built into the Si91846 to clamp the output voltage when it rises beyond normal regulation.The Si91846 features reverse battery protection to limit reverse current flow to approximately 1- A in the event reversed battery is applied at the input, thus preventing damage to the IC.The Si91846 is available in both standard and lead (Pb)-free packages.

• Ultra Low Dropout-130 mV at 150-mA Load
• Ultra Low Noise-30 V(_{rms) (10-Hz to 100-kHz Bandwidth)}
• Out-of-Regulation Error Flag (power good)
• Shutdown Control
• Only 110- A Ground Current at 150-mA Load
• Fast Start-Up (50 µS)
• 1.5% Guaranteed Output Voltage Accuracy
• 300-mA Peak Output Current Capability
• Uses Low ESR Ceramic Capacitors
• Fast Line and Load Transient Response ( 30 µs)
• 1- A Maximum Shutdown Current
• Output Current Limit
• Si91846: Output, No-Discharge in Shutdown Mode
• Fixed 1.8, 2.0, 2.2, 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3.0, 3.3, 3.5, 3.6, 5.0-V Output Voltage Options
• Built-in Short Circuit and Thermal Protection
• Reverse Battery Protection
• Thin SOT23-6 Package