Overview
The TPS73030DBVR is a low-dropout linear voltage regulator produced by Texas Instruments. This device is designed to provide a stable output voltage with high power-supply rejection ratio (PSRR) and low noise, making it suitable for noise-sensitive applications. The TPS73030DBVR is available in a compact SOT-23-5 package, which is ideal for space-constrained designs.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Output Current | 200 mA | |
| Output Voltage | 3 V (Fixed) | |
| Input Voltage Range | 2.7 V to 5.5 V | |
| Dropout Voltage | 120 mV to 210 mV at IOUT = 200 mA | VIN = VOUT(nom) – 0.1 V |
| Power-Supply Rejection Ratio (PSRR) | 68 dB at 100 Hz, IOUT = 200 mA | TJ = 25°C |
| Output Noise | 33 μVRMS (BW = 200 Hz to 100 kHz, IOUT = 200 mA, CNR = 0.01 μF) | |
| Start-up Time | 50 μs (RL = 14 Ω, COUT = 1 µF, CNR = 0.001 μF) | |
| Quiescent Current | 170 μA typical | 0 µA ≤ IOUT ≤ 200 mA, TJ = 25°C |
| Shutdown Current | < 1 μA (VEN = 0 V, 2.7 V ≤ VIN ≤ 5.5 V) | |
| Package | SOT-23-5 |
Key Features
- High power-supply rejection ratio (PSRR) of 68 dB at 100 Hz.
- Low output noise of 33 μVRMS (BW = 200 Hz to 100 kHz) with a 0.01-μF bypass capacitor.
- Fast start-up time of approximately 50 μs with a 0.001-μF bypass capacitor.
- Low quiescent current of 170 μA typical and less than 1 μA in shutdown mode.
- Enable pin for easy on/off control.
- Compact SOT-23-5 package for space-constrained designs.
Applications
- RF applications: VCOs, receivers, ADCs.
- Audio applications.
- Cellular and cordless telephones.
- Bluetooth and Wireless LAN devices.
- Handheld organizers and PDAs.
Q & A
- What is the output current capability of the TPS73030DBVR? The TPS73030DBVR can supply up to 200 mA of output current.
- What is the typical quiescent current of the TPS73030DBVR? The typical quiescent current is 170 μA.
- What is the dropout voltage of the TPS73030DBVR? The dropout voltage ranges from 120 mV to 210 mV at IOUT = 200 mA.
- How does the TPS73030DBVR perform in terms of power-supply rejection ratio (PSRR)? It has a high PSRR of 68 dB at 100 Hz.
- What is the start-up time of the TPS73030DBVR? The start-up time is approximately 50 μs with a 0.001-μF bypass capacitor.
- What package options are available for the TPS73030DBVR? It is available in the SOT-23-5 package.
- What are some common applications for the TPS73030DBVR? It is used in RF applications, audio applications, cellular and cordless telephones, Bluetooth and Wireless LAN devices, and handheld organizers.
- How does the enable pin function on the TPS73030DBVR? The enable pin allows for easy on/off control of the regulator.
- What is the output noise level of the TPS73030DBVR? The output noise is 33 μVRMS (BW = 200 Hz to 100 kHz) with a 0.01-μF bypass capacitor.
- What is the shutdown current of the TPS73030DBVR? The shutdown current is less than 1 μA when VEN = 0 V.
