Overview
The TPS71533DCKR is a low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device is designed for low-power operation and features a wide input voltage range, making it suitable for various applications, including battery-powered devices and low-power microcontrollers. The TPS71533DCKR is available in both fixed and adjustable output voltage versions, offering flexibility in voltage regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 V to 24 V (30 V max for new chip only) | V |
| Output Voltage Options | Fixed: 1.8 V to 5 V, Adjustable: 1.205 V to 15 V | V |
| Output Current | Up to 50 mA | mA |
| Quiescent Current (IQ) | 3.2 μA at 50-mA load current | μA |
| Output Capacitor Requirement | ≥ 0.47 μF | μF |
| Overcurrent Protection | Yes | |
| Package | 5-pin SC70 (DCK) | |
| Operating Junction Temperature | –40°C to +125°C | °C |
Key Features
- Wide input voltage range: 2.5 V to 24 V (30 V max for new chip only)
- Available in fixed and adjustable output voltage versions
- Very 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
- Low dropout voltage: typically 415 mV at 50 mA of load current
Applications
- Home and building automation
- Retail automation and payment systems
- Grid infrastructure
- Medical applications
- Lighting applications
- Battery-powered devices
- Low-power microcontrollers
Q & A
- What is the input voltage range of the TPS71533DCKR? 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 TPS71533DCKR? The device is available in 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 TPS71533DCKR? The maximum output current is up to 50 mA.
- What is the quiescent current (IQ) of the TPS71533DCKR? The quiescent current is typically 3.2 μA at a 50-mA load current.
- What is the minimum required output capacitor for the TPS71533DCKR? The device requires an output capacitor of at least 0.47 μF.
- Does the TPS71533DCKR have overcurrent protection? Yes, it features built-in overcurrent protection.
- What is the package type of the TPS71533DCKR? The device is packaged in a 5-pin SC70 (DCK) package.
- What is the operating junction temperature range of the TPS71533DCKR? The operating junction temperature range is from –40°C to +125°C.
- What are some typical applications of the TPS71533DCKR? Typical applications include home and building automation, retail automation, grid infrastructure, medical applications, and lighting applications.
- How does the TPS71533DCKR manage inrush current? The device features an internal soft-start mechanism to lower the inrush current.
