Overview
The TPS70102PWPR is a dual-channel low-dropout voltage regulator produced by Texas Instruments. This device is part of the TPS701xx family, designed to provide a complete power management solution for various applications, including DSP (Digital Signal Processing) systems, processors, ASICs, FPGAs, and other digital applications. The regulator offers dual output voltages, making it ideal for split-supply applications. It features selectable power-up sequencing, which is particularly useful for DSP applications requiring specific power sequencing.
The device is packaged in a 20-pin HTSSOP (PowerPAD TSSOP) and operates over a wide temperature range of -40°C to 125°C. It includes several advanced features such as fast transient response, low noise output, and ultra-low quiescent current, making it a robust and efficient power management solution.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | HTSSOP (PWP) | - |
| Pins | 20 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Input Voltage Range | 2.7 to 6 | V |
| Output Voltage Range (VOUT1, VOUT2) | 1.22 to 5.5 | V |
| Output Current (Regulator 1) | 500mA | - |
| Output Current (Regulator 2) | 250mA | - |
| Voltage Dropout (Max) | 0.28V @ 500mA | V |
| Quiescent Current (Iq) | 190µA | - |
| Input Current During Standby | 1µA | - |
| Noise (RMS Without Bypass Capacitor) | 65µV | - |
| PSRR | 60dB (1kHz) | - |
| Control Features | Enable, Power Good, Reset, Sequencing | - |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) | - |
Key Features
- Dual Output Voltages for Split-Supply Applications
- Selectable Power-Up Sequencing for DSP Applications
- Output Current Range of 500mA on Regulator 1 and 250mA on Regulator 2
- Fast Transient Response
- Voltage Options: Fixed (e.g., 3.3V/2.5V, 3.3V/1.8V) and Adjustable Outputs
- Open Drain Power-On Reset with 120ms Delay
- Open Drain Power Good for Regulator 1
- Ultra Low 190µA (typ) Quiescent Current
- 1µA Input Current During Standby
- Low Noise: 65µV RMS Without Bypass Capacitor
- Quick Output Capacitor Discharge Feature
- Two Manual Reset Inputs
- 2% Accuracy Over Load and Temperature
- Undervoltage Lockout (UVLO) Feature
- Thermal Shutdown Protection
Applications
The TPS70102PWPR is designed for a variety of applications, including:
- DSP (Digital Signal Processing) systems
- Processor power management
- ASIC and FPGA power supply
- Digital applications requiring dual output voltage regulators
- Split-voltage systems where specific power sequencing is necessary
Q & A
- What is the TPS70102PWPR used for?
The TPS70102PWPR is a dual-channel low-dropout voltage regulator used for power management in DSP systems, processors, ASICs, FPGAs, and other digital applications.
- What is the package type of the TPS70102PWPR?
The device is packaged in a 20-pin HTSSOP (PowerPAD TSSOP).
- What are the output current capabilities of the TPS70102PWPR?
Regulator 1 can support up to 500mA, and regulator 2 can support up to 250mA.
- What are the key control features of the TPS70102PWPR?
The device includes enable, power good, reset, and sequencing control features.
- What protection features does the TPS70102PWPR have?
The device features over current, over temperature, reverse polarity, and under voltage lockout (UVLO) protection.
- What is the operating temperature range of the TPS70102PWPR?
The device operates over a temperature range of -40°C to 125°C.
- How does the power-up sequencing work in the TPS70102PWPR?
The device allows for selectable power-up sequencing, which is particularly useful for DSP applications requiring specific power sequencing.
- What is the quiescent current of the TPS70102PWPR?
The quiescent current is typically 190µA.
- Does the TPS70102PWPR have thermal shutdown protection?
Yes, the device includes thermal shutdown protection.
- How does the reset function work in the TPS70102PWPR?
The reset function initiates a reset in DSP systems and related digital applications in the event of an undervoltage condition, with a 120ms delay.
- What is the noise performance of the TPS70102PWPR?
The device has low noise output performance, with 65µV RMS without using any added filter bypass capacitors.
