Overview
The TLV75510PDBVR is an ultra-small, low quiescent current, low-dropout regulator (LDO) from Texas Instruments. This device is optimized for a wide variety of applications, supporting an input voltage range from 1.45V to 5.5V and offering fixed output voltages ranging from 0.6V to 5V. It is particularly suited for modern microcontrollers (MCUs) with lower core voltages. The TLV75510PDBVR features a low quiescent current of 25μA (typical), low dropout voltage, and excellent line and load transient performance. It also includes internal soft-start, shutdown functionality, and thermal protection, making it a reliable choice for various electronic systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 1.45 | - | 5.5 | V |
| Output Voltage Range | 0.6 | - | 5 | V |
| Output Current | - | - | 500 | mA |
| Quiescent Current (IQ) | - | 25 | - | μA |
| Dropout Voltage (VDO) | 238 | - | 1080 | mV |
| Line Regulation | -1.5 | - | 1.5 | % |
| Load Regulation | - | - | 2 | mV |
| Power Supply Rejection Ratio (PSRR) | 46 | - | 52 | dB |
| Output Noise Voltage | - | 71.5 | - | μVRMS |
| Undervoltage Lockout (VUVLO) | 1.21 | 1.3 | 1.44 | V |
| Thermal Shutdown Temperature | - | - | 165 | °C |
Key Features
- Ultra-small package options including SOT-23-5, WSON, and X2SON, with some packages featuring an exposed thermal pad for improved thermal performance.
- Low quiescent current of 25μA (typical) to minimize standby power.
- Internal soft-start to reduce inrush current and provide a controlled voltage to the load during startup.
- Enable functionality with active pull-down to quickly discharge the output when the device is in shutdown mode.
- Integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) for robust protection.
- Foldback current limit to reduce thermal dissipation during short-circuit events.
- Stable operation with small ceramic output capacitors, allowing for a compact solution size.
- Precision band-gap and error amplifier providing a typical accuracy of 1%.
Applications
- Modern microcontrollers (MCUs) with lower core voltages.
- Grid infrastructure and protection relays.
- Camera modules and image sensors.
- Portable electronics and battery-powered devices.
- Industrial control systems and automation.
- Wireless communication devices and IoT applications.
Q & A
- What is the input voltage range of the TLV75510PDBVR?
The input voltage range is from 1.45V to 5.5V.
- What is the maximum output current of the TLV75510PDBVR?
The maximum output current is 500mA.
- What is the typical quiescent current of the TLV75510PDBVR?
The typical quiescent current is 25μA.
- Does the TLV75510PDBVR have thermal protection?
Yes, it includes integrated thermal shutdown protection.
- What types of packages are available for the TLV75510PDBVR?
The device is available in SOT-23-5, WSON, and X2SON packages, with some featuring an exposed thermal pad.
- How does the enable functionality work on the TLV75510PDBVR?
The enable pin is active high; drive EN greater than VHI to turn on the regulator, and drive EN less than VLO to place the regulator into shutdown mode.
- What is the purpose of the undervoltage lockout (UVLO) feature?
The UVLO feature disables the output until the input voltage is greater than the rising UVLO voltage to prevent unpredictable behavior when the supply voltage is low.
- Does the TLV75510PDBVR support foldback current limit?
Yes, it includes a foldback current limit to reduce thermal dissipation during short-circuit events.
- What is the typical accuracy of the output voltage?
The typical accuracy of the output voltage is 1% due to the precision band-gap and error amplifier.
- Can the TLV75510PDBVR operate with small ceramic output capacitors?
Yes, the device is stable with small ceramic output capacitors, allowing for a compact solution size.
