Overview
The TPS73601DBVT is a low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device operates using an NMOS pass transistor in a voltage-follower configuration, which allows it to be stable with or without an output capacitor. The TPS73601DBVT is designed for high precision and low dropout voltages, making it suitable for a variety of applications, especially in portable devices. It features an advanced BiCMOS process, ultra-low dropout voltage, and high reverse blockage. The regulator is protected by thermal shutdown and foldback current limit, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range (VIN) | 1.7 | 5.5 | V | |
| Output Voltage Range (VOUT) | 1.2 | 5.5 | V | |
| Maximum Output Current (IOUT) | 400 | mA | ||
| Dropout Voltage (VDO) | 75 | mV | ||
| Line Regulation (ΔVOUT/ΔVIN) | 0.01 | %/V | ||
| Load Regulation (ΔVOUT/ΔIOUT) | 0.002 | %/mA | ||
| Power-Supply Rejection Ratio (PSRR) | 58 | dB (at 100Hz) | ||
| Output Noise Voltage (VN) | 27 x VOUT | µVRMS (BW = 10Hz to 100kHz) | ||
| Thermal Shutdown Temperature | 160 | °C | ||
| Operating Junction Temperature (TJ) | -40 | 125 | °C |
Key Features
- Stable Operation Without Output Capacitor: The TPS73601DBVT can operate stably with or without an output capacitor, making it versatile for various applications.
- Ultra-Low Dropout Voltage: The device features a dropout voltage as low as 75 mV at full load current, enhancing efficiency.
- High Precision and Low Noise: The regulator uses an advanced BiCMOS process to achieve high precision and very low output noise, suitable for powering sensitive components like VCOs.
- Thermal and Current Protection: Protected by thermal shutdown and foldback current limit, ensuring safe operation under adverse conditions.
- Low Ground Pin Current: The ground pin current is nearly constant over all output current values, contributing to low power consumption.
- Noise Reduction Pin: An integrated noise reduction pin allows for additional noise reduction with an external capacitor.
Applications
- Portable Electronics: Ideal for battery-powered devices due to its low dropout voltage and low ground pin current.
- Wireless Communication Devices: Suitable for powering VCOs and other sensitive components in wireless communication systems.
- Industrial Control Systems: Can be used in industrial control systems where stable and low-noise voltage regulation is required.
- Medical Devices: Applicable in medical devices that require precise and stable voltage regulation.
Q & A
- What is the input voltage range of the TPS73601DBVT?
The input voltage range is from 1.7 V to 5.5 V.
- What is the maximum output current of the TPS73601DBVT?
The maximum output current is 400 mA.
- Does the TPS73601DBVT require an output capacitor for stability?
No, the TPS73601DBVT can operate stably with or without an output capacitor.
- What is the dropout voltage of the TPS73601DBVT at full load current?
The dropout voltage is as low as 75 mV at full load current.
- How does the noise reduction pin function in the TPS73601DBVT?
The noise reduction pin allows for additional noise reduction by connecting an external capacitor from this pin to ground.
- What protection features does the TPS73601DBVT have?
The device is protected by thermal shutdown and foldback current limit.
- What is the operating junction temperature range of the TPS73601DBVT?
The operating junction temperature range is from -40°C to 125°C.
- How does the ground pin current behave over different output current values?
The ground pin current is nearly constant over all output current values.
- What is the typical power-supply rejection ratio (PSRR) of the TPS73601DBVT?
The PSRR is 58 dB at 100 Hz and 37 dB at 10 kHz.
- What are some common applications of the TPS73601DBVT?
Common applications include portable electronics, wireless communication devices, industrial control systems, and medical devices.
