Power Management TPS717185 Low Noise, High-Bandwidth PSRR, Low-Dropout 150mA Linear Regulator

Features

• 150mA Low-Dropout Regulator with Enable
• Low I_Q: 50µA (typical)
• Available in Multiple Output Versions:
  • Fixed Output with Voltages from 0.9V to 5.0V Using Innovative Factory EEPROM Programming
  • Adjustable Output Voltage from 0.9V to 6.2V
• Ultra-High PSRR:
  • 70dB at 1kHz, 67dB at 100kHz and 45dB at 1MHz
• Low Noise: 30µV typical (100Hz to 100kHz)
• Stable with a 1.0µF Ceramic Capacitor
• Excellent Load/Line Transient Response
• 3% Overall Accuracy (over Load/Line/Temp)
• Over-Current and Over-Temperature Protection
• Very Low Dropout: 170mV Typical at 150mA
• Small SC70-5, 2mm x 2mm SON-6, and 1.5mm × 1.5mm SON-6 Packages
• APPLICATIONS
  • Mobile Phone Handsets
  • Wireless LAN, Bluetooth™
  • PDAs and Smartphones

Bluetooth is a trademark of Bluetooth SIG, Inc.

Description

The TPS717xx family of low-dropout (LDO), low-power linear regulators offers very high power supply rejection (PSRR) while maintaining very low 50µA ground current in an ultra-small, five-pin SC70 package. The family uses an advanced BiCMOS process and a PMOSFET pass device to achieve fast start-up, very low noise, excellent transient response, and excellent PSRR performance. The TPS717xx is stable with a 1.0µF ceramic output capacitor, and uses a precision voltage reference and feedback loop to achieve a worst-case accuracy of 3% over all load, line, process, and temperature variations. It is fully specified from T_J = -40°C to +125°C and is offered in a small SC70-5 package, a 2mm × 2mm SON-6 package with a thermal pad, and a 1.5mm × 1.5mm SON package, which are ideal for small form factor portable equipment such as wireless handsets and PDAs.