The TPS791xx family of low-dropout (LDO) low-power linear voltage regulators features high power supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline, SOT23, package. Each device in the family is stable, with a small 1-µF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (e.g., 38 mV at 100 mA, TPS79147). Each device achieves fast start-up times (approximately 63 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (170 µA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79118 exhibits approximately 15 µVRMS of output voltage noise with a 0.1-µF bypass capacitor. Applications with analog components that are noise sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features as well as the fast response time.

• 100-mA Low-Dropout Regulator With EN
• Available in 1.8-V, 3.3-V, 4.7-V, and Adjustable Versions
• High PSRR (70 dB at 10 kHz)
• Ultralow Noise (15 µVRMS)
• Fast Start-Up Time (63 µs)
• Stable With Any 1-µF Ceramic Capacitor
• Excellent Load/Line Transient
• Very Low Dropout Voltage (38 mV at Full Load, TPS79147)
• 5-Pin SOT23 (DBV) Package
• TPS792xx Provides EN Options
• APPLICATIONS
  • VCOs
  • RF
  • Bluetooth™, Wireless LAN
• SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
  • Controlled Baseline
  • One Assembly/Test Site
  • One Fabrication Site
  • Available in Military (–55°C/125°C) Temperature Range(1)
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability

(1) Custom temperature ranges available Bluetooth is a trademark of Bluetooth SIG, Inc..