Overview
The TPS73033DBVT is a low-dropout (LDO) linear voltage regulator from Texas Instruments, part of the TPS730 family. This regulator is designed to provide high power-supply rejection ratio (PSRR), low noise, and fast start-up times, making it ideal for various applications, especially in portable and noise-sensitive electronics. The device is available in a small SOT-23 (DBV) package with 5 pins, offering an ultrasmall footprint and ultralow profile, which is beneficial for handheld devices such as handsets and PDAs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBV) | - |
| Pins | 5 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | - |
| Adjustability | FIXED | - |
| Dropout Voltage (Nominal) | 0.12 V | V |
| Dropout Voltage (Maximum) | 0.21 V | V |
| Input Voltage (Minimum) | 3.51 V | V |
| Input Voltage (Maximum) | 5.5 V | V |
| Output Voltage (Nominal) | 3.3 V | V |
| Output Voltage (Minimum) | 3.234 V | V |
| Output Voltage (Maximum) | 3.366 V | V |
| Output Current (Maximum) | 200 mA | A |
| PSRR at 100 Hz | 68 dB | - |
| Output Noise (RMS) | 33 µV | V |
| Start-Up Time | 50 µs | s |
| Quiescent Current | 170 µA | A |
| Shutdown Current | < 1 µA | A |
Key Features
- High power-supply rejection ratio (PSRR) of 68 dB at 100 Hz
- Low noise of 33 µV RMS
- Fast start-up time of approximately 50 µs
- Stable with a small 2.2-µF ceramic capacitor on the output
- Excellent line and load transient responses
- Very low dropout voltage of 120 mV at 200 mA
- Available in fixed voltages from 1.8 V to 3.3 V and adjustable voltages from 1.22 V to 5.5 V
- Low quiescent current of 170 µA typical and shutdown current of less than 1 µA
- Advanced BiCMOS fabrication process for low dropout voltages
- Compact SOT-23 (DBV) package with 5 pins
Applications
- RF applications: VCOs, Receivers, ADCs
- Audio applications
- Cellular and cordless telephones
- Bluetooth and Wireless LAN devices
- Handheld organizers and PDAs
- Portable RF electronics and other noise-sensitive analog components
Q & A
- What is the output voltage of the TPS73033DBVT?
The output voltage of the TPS73033DBVT is 3.3 V.
- What is the maximum output current of the TPS73033DBVT?
The maximum output current is 200 mA.
- What is the dropout voltage of the TPS73033DBVT?
The dropout voltage is 0.12 V nominal and 0.21 V maximum.
- What is the power-supply rejection ratio (PSRR) of the TPS73033DBVT?
The PSRR is 68 dB at 100 Hz.
- What is the typical quiescent current of the TPS73033DBVT?
The typical quiescent current is 170 µA.
- What is the shutdown current of the TPS73033DBVT?
The shutdown current is less than 1 µA.
- What is the start-up time of the TPS73033DBVT?
The start-up time is approximately 50 µs.
- What type of package does the TPS73033DBVT come in?
The TPS73033DBVT comes in a SOT-23 (DBV) package with 5 pins.
- What are the operating temperature ranges for the TPS73033DBVT?
The operating temperature range is from -40°C to 125°C.
- What are some common applications for the TPS73033DBVT?
Common applications include RF electronics, audio, cellular and cordless telephones, Bluetooth, Wireless LAN, and handheld organizers.
