1 Features

• Qualified For Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to +125°C
  • Device HBM ESD Classification Level 1C
  • Device CDM ESD Classification Level C2
• 200-mA Low-Dropout Regulator With EN
• Available in 1.8-V, 2.5-V, 2.8-V, 3-V, 3.3-V, 4.75-V, and Adjustable Options
• High PSRR (70 dB at 10 kHz)
• Ultralow Noise (32 μV)
• Fast Start-Up Time (50 μs)
• Stable With a 2.2-μF Ceramic Capacitor
• Excellent Load and Line Transient
• Very Low Dropout Voltage
  (112 mV at Full Load, TPS79330-Q1)
• 5-Pin SOT-23 (DBV) Package

2 Applications

• VCOs
• RF
• Bluetooth™

3 Description

The TPS793xx-Q1 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 SOT-23 package. Each TPS793-Q1 device in the family is stable, with a small 2.2-μF ceramic capacitor on the output. The TPS793xx-Q1 family uses an advanced, proprietary, BiCMOS fabrication process to yield extremely low dropout voltages (for example, 112 mV at 200 mA, TPS79330-Q1). Each device achieves fast start-up times (approximately 50 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 TPS79328-Q1 exhibits approximately 32 μV_RMS 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.

1. For all available packages, see the orderable addendum at the end of the data sheet.

TPS79328-Q1 Ripple Rejection vs Frequency

TPS79328-Q1 Output Spectral Noise Density vs Frequency