LP38691QSDX-3.3/NOPB

The LP3869x low-dropout CMOS linear regulator features tight output tolerance (2% typical) and ultra-low dropout voltage (250mV at 500mA load current, V_OUT = 5V), and delivers excellent AC performance with ultra-low ESR ceramic output capacitors. The regulator is available in low thermal resistance WSON, SOT-223, and TO-252 packages, enabling full-current operation even at elevated ambient temperatures. The use of a PMOS power transistor eliminates the need for DC base drive current biasing, keeping ground pin current below 100μA regardless of load current, input voltage, or operating temperature. - Dropout voltage: 250mV (typical) at 500mA (5V output voltage, typical) - Ground pin current: 55μA (typical) at full load - Precision output voltage: 2% accuracy (25°C)

Applications

• Hard disk drives
• Laptops
• Battery-powered devices
• Portable instruments

Key features

• Wide input voltage range (2.7V to 10V)
• All WSON options available as AEC-Q100 Grade 1
• 2.0% output accuracy (25°C)
• Low dropout: 250mV at 500mA (5V output typical)
• Precision (trimmed) bandgap reference
• Specifications guaranteed over -40°C to +125°C temperature range
• 1μA shutdown quiescent current
• Thermal overload protection
• Foldback current limiting
• TO-252, SOT-223, and 6-bump WSON packages
• Enable pin (LP38693)