Overview
The TPS79901DRVRG4 is a low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device is designed to provide high performance and ultra-low current consumption, making it suitable for various applications, including RF and precision analog systems. The TPS79901DRVRG4 combines high power-supply rejection ratio (PSRR), fast start-up, and excellent line and load transient response, while consuming a very low ground current of typically 40 μA. It is available in multiple output voltage versions and is fully specified over a temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 2.7 | 6.5 | V | |
| Output Current (IOUT) | 0.5 | 200 | mA | |
| Operating Junction Temperature (TJ) | –40 | 125 | °C | |
| Output Voltage Accuracy | ±2% | % | ||
| Line Regulation (ΔVO/ΔVI) | 0.02 | %/V | ||
| Load Regulation (ΔVO/ΔIO) | 0.002 | %/mA | ||
| Dropout Voltage (VDO) | 90 | 100 | 175 | mV |
| Ground Pin Current (IGND) | 40 | 60 | μA | |
| Shutdown Current (ISHDN) | 0.15 | 1 | μA | |
| Thermal Shutdown Temperature | 165 | °C |
Key Features
- 200-mA low-dropout regulator with enable (EN) pin.
- Multiple output voltage versions available: fixed outputs from 1.2 V to 4.5 V.
- Ultra-low noise and high PSRR due to a high-gain, high-bandwidth error loop.
- Fast start-up and excellent line and load transient response.
- Low ground current of typically 40 μA.
- Stable with ceramic capacitors.
- Inrush current protection and overshoot detection at the output.
- Thermal and overcurrent protection.
- Available in low-profile packages such as 5-pin SOT-23-THIN, 6-pin WSON, and DSBGA.
Applications
The TPS79901DRVRG4 is an excellent choice for various applications, including:
- Wireless handsets and WLAN cards due to its low profile and high performance.
- Portable devices where low current consumption is crucial.
- RF and precision analog systems requiring high PSRR and low noise.
Q & A
- What is the maximum output current of the TPS79901DRVRG4?
The maximum output current is 200 mA.
- What is the typical ground current consumption of the TPS79901DRVRG4?
The typical ground current consumption is 40 μA.
- What is the operating temperature range of the TPS79901DRVRG4?
The operating temperature range is from –40°C to +125°C.
- Does the TPS79901DRVRG4 have thermal protection?
- What types of packages are available for the TPS79901DRVRG4?
- How does the TPS79901DRVRG4 manage inrush current?
- What is the dropout voltage of the TPS79901DRVRG4?
- Does the TPS79901DRVRG4 have overshoot detection?
- How does the noise-reduction pin improve performance?
- What is the typical line regulation of the TPS79901DRVRG4?
