LP5900 - Texas Instruments

LP5900 Ultra-Low-Noise LDO

The LP5900 is an LDO capable of supplying 150-mA output current. Designed to meet the requirements of RF and analog circuits, the LP5900 device provides low noise, high PSRR, low quiescent current, and low line transient response figures. Using new innovative design techniques the LP5900 offers class-leading device noise performance without a noise bypass ca.

Features

•1 Input Voltage Range, 2.5 V to 5.5 V
• Output Voltage Range, 1.5 V to 4.5 V
• Stable with 0.47-μF Ceramic Input and Output Capacitors
• No Noise Bypass Capacitor Required
• Logic Controlled Enable
• Thermal-Overload and Short-Circuit Protection
• −40°C to 125°C Junction Temperature Range for Operation
• Output Current, 150 mA
• Low Output Voltage Noise, 6.5 μVRMS
• PSRR, 75 dB at 1 kHz
• Output Voltage Tolerance, ±2%
• Virturally Zero IQ (Disabled), < 1 µA
• Very Low IQ (Enabled), 25 μA
• Start-up Time, 150 μs
• Low Dropout, 80 mV Typ. 2 Applications
• Cellular Phones
• PDA Handsets
• Wirele.