Overview
The TPS71518DCKR is a low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device is designed to offer a wide input voltage range, low-power operation, and miniaturized packaging, making it ideal for battery-powered applications and as a power-management attachment to low-power microcontrollers. The TPS71518DCKR is available in both fixed and adjustable output voltage versions, providing flexibility for various applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.5 | - | 24 (30 V max for new chip only) | V |
| Output Voltage Range (Fixed) | 1.8 | - | 5 | V |
| Output Voltage Range (Adjustable) | 1.205 | - | 15 | V |
| Output Current | - | - | 50 | mA |
| Quiescent Current (IQ) | - | 3.2 | 4.8 | μA |
| Dropout Voltage | - | 415 | 750 | mV |
| Operating Junction Temperature | -40 | - | 125 | °C |
| Package | - | - | 5-pin SC70 (DCK) | - |
Key Features
- Wide input voltage range: 2.5 V to 24 V (30 V max for new chip only)
- Available output voltage options: Fixed (1.8 V to 5 V) and Adjustable (1.205 V to 15 V)
- Low quiescent current: 3.2 μA at 50-mA load current
- Stable with output capacitor ≥ 0.47 μF
- Overcurrent protection
- Internal soft-start to lower inrush current
- Miniaturized 5-pin SC70 (DCK) package
- Operating junction temperature range: –40°C to +125°C
Applications
- Home and building automation
- Retail automation and payment systems
- Grid infrastructure
- Medical applications
- Lighting applications
- Ultralow power microcontrollers
- Cellular and cordless handsets
- Portable and battery-powered equipment
Q & A
- What is the input voltage range of the TPS71518DCKR?
The input voltage range is from 2.5 V to 24 V, with a maximum of 30 V for the new chip only.
- What are the available output voltage options for the TPS71518DCKR?
The device offers fixed output voltages from 1.8 V to 5 V and adjustable output voltages from 1.205 V to 15 V.
- What is the maximum output current of the TPS71518DCKR?
The maximum output current is up to 50 mA.
- What is the quiescent current of the TPS71518DCKR?
The quiescent current is typically 3.2 μA at a 50-mA load current.
- What type of protection does the TPS71518DCKR have?
The device features overcurrent protection and an internal soft-start to lower inrush current.
- What is the operating junction temperature range of the TPS71518DCKR?
The operating junction temperature range is from –40°C to +125°C.
- What package type is the TPS71518DCKR available in?
The device is available in a 5-pin SC70 (DCK) package.
- What are some typical applications of the TPS71518DCKR?
Typical applications include home and building automation, retail automation, medical applications, lighting, and portable battery-powered equipment.
- How does the adjustable version of the TPS71518DCKR set the output voltage?
The adjustable version uses feedback resistors to set the output voltage from 1.205 V to 15 V.
- What is the dropout voltage of the TPS71518DCKR?
The dropout voltage is typically 415 mV at 50 mA of load current.
