Overview
The TPS70802PWP is a dual-channel low-dropout voltage regulator produced by Texas Instruments. This device is part of the TPS708xx family and is designed to provide a complete power management solution for various applications, including split-supply requirements. It integrates supervisory functions such as power-on reset (POR), power good (PG), and manual reset inputs, making it suitable for use in TI DSP, processor power, ASIC, FPGA, and other digital applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 20-Pin HTSSOP (PWP) |
| Operating Temperature Range | -40°C to 125°C |
| Output Current (Regulator 1) | 250 mA |
| Output Current (Regulator 2) | 125 mA |
| Voltage Options | 3.3-V/2.5-V, 3.3-V/1.8-V, 3.3-V/1.5-V, 3.3-V/1.2-V, and Dual Adjustable Outputs |
| Quiescent Current | 190 µA (typ) |
| Input Current During Standby | 1 µA |
| Noise | 65 µV RMS (without bypass capacitor) |
| Power-On Reset Delay | 120 ms |
| Undervoltage Lockout (UVLO) | 2.5 V |
| Thermal Shutdown Protection | Yes |
Key Features
- Dual Output Voltages for Split-Supply Applications
- Independent Enable Functions
- Open Drain Power-On Reset with 120-ms Delay
- Open Drain Power Good for Regulator 1 and Regulator 2
- Ultralow 190-µA (typ) Quiescent Current
- 1-µA Input Current During Standby
- Low Noise: 65 µV RMS Without Bypass Capacitor
- Quick Output Capacitor Discharge Feature
- One Manual Reset Input
- 2% Accuracy Over Load and Temperature
- Undervoltage Lockout (UVLO) Feature
- Thermal Shutdown Protection
Applications
The TPS70802PWP is ideal for various power management applications, including:
- Texas Instruments DSP and processor power
- ASIC and FPGA power management
- Digital applications requiring dual output voltage regulators
- Systems needing integrated supervisory functions such as power-on reset and power good indicators
Q & A
- What is the package type of the TPS70802PWP?
The TPS70802PWP comes in a 20-Pin HTSSOP (PWP) package.
- What are the output current capabilities of the TPS70802PWP?
Regulator 1 can support up to 250 mA, and Regulator 2 can support up to 125 mA.
- What are the available voltage options for the TPS70802PWP?
The device offers fixed voltage options such as 3.3-V/2.5-V, 3.3-V/1.8-V, 3.3-V/1.5-V, 3.3-V/1.2-V, and dual adjustable outputs.
- What is the quiescent current of the TPS70802PWP?
The quiescent current is typically 190 µA at full load.
- Does the TPS70802PWP have thermal shutdown protection?
- What is the purpose of the power-on reset (POR) feature in the TPS70802PWP?
The POR feature initiates a reset in the event of an undervoltage condition and indicates the status of the manual reset pin.
- How does the undervoltage lockout (UVLO) feature work in the TPS70802PWP?
The UVLO circuit prevents the internal regulators from turning on until the input voltage reaches 2.5 V.
- What is the noise performance of the TPS70802PWP?
The device has a low noise performance of 65 µV RMS without the need for a bypass capacitor.
- Does the TPS70802PWP have a quick output capacitor discharge feature?
- What is the accuracy of the TPS70802PWP over load and temperature?
The device maintains an accuracy of 2% over load and temperature.
