Overview
The TLV73333PQDBVRQ1 is a capacitor-free, 300-mA, low dropout (LDO) linear regulator produced by Texas Instruments. This device is part of the TLV733P-Q1 family, which is designed for ultra-small, low quiescent current applications. It is AEC-Q100 qualified for automotive use, with a temperature grade 1 rating from –40°C to 125°C. The regulator offers excellent line and load transient performance, making it ideal for portable consumer and automotive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 1.4 | 5.5 | V | |
| Output Current | 300 | mA | ||
| Dropout Voltage (VOUT = 3.3 V, IOUT = 300 mA) | 125 | mV | ||
| Output Voltage Accuracy (TJ = 25°C) | –1% | 1% | 1.4% | |
| Quiescent Current (IQ) | 34 | µA | ||
| Power Supply Rejection Ratio (PSRR) at 1 kHz | 50 | dB | ||
| Package | WSON-6, SOT-23 | |||
| Junction Temperature Range | –40 | 150 | °C |
Key Features
- Capacitor-Free Operation: Stable operation with or without input or output capacitors.
- Low Dropout Voltage: 125 mV at 300 mA for a 3.3 V output.
- High Accuracy: Typical output voltage accuracy of 1%, maximum of 1.4%.
- Low Quiescent Current: 34 µA.
- High PSRR: 50 dB at 1 kHz.
- Foldback Overcurrent Protection: Reduces current during fault conditions.
- Active Output Discharge: Quickly discharges output loads when disabled.
- Thermal Shutdown Protection: Disables the output at approximately 160°C and re-enables at approximately 140°C.
- Undervoltage Lockout (UVLO): Ensures the device does not operate below the minimum input voltage.
Applications
- Camera Modules: Ideal for powering camera modules in various devices.
- Automotive Infotainment: Suitable for automotive infotainment systems due to its AEC-Q100 qualification.
- Navigation Systems: Used in navigation systems requiring stable and low-noise power supply.
- Portable Consumer Devices: Excellent for portable consumer applications requiring low quiescent current and high PSRR.
Q & A
- What is the input voltage range of the TLV73333PQDBVRQ1?
The input voltage range is from 1.4 V to 5.5 V.
- What is the maximum output current of the TLV73333PQDBVRQ1?
The maximum output current is 300 mA.
- What is the typical dropout voltage for a 3.3 V output at 300 mA?
The typical dropout voltage is 125 mV.
- What is the quiescent current (IQ) of the TLV73333PQDBVRQ1?
The quiescent current is 34 µA.
- Does the TLV73333PQDBVRQ1 require output capacitors for stable operation?
No, the TLV73333PQDBVRQ1 can operate stably with or without output capacitors.
- What is the power supply rejection ratio (PSRR) at 1 kHz?
The PSRR at 1 kHz is 50 dB.
- What are the available package options for the TLV73333PQDBVRQ1?
The available packages are WSON-6 and SOT-23.
- What is the junction temperature range of the TLV73333PQDBVRQ1?
The junction temperature range is from –40°C to 150°C.
- Does the TLV73333PQDBVRQ1 have thermal shutdown protection?
Yes, it disables the output at approximately 160°C and re-enables at approximately 140°C.
- What is the purpose of the undervoltage lockout (UVLO) feature?
The UVLO feature ensures the device does not operate below the minimum input voltage to prevent unpredictable behavior.
