Overview
The TPS70248PWPR is a dual-channel low-dropout voltage regulator produced by Texas Instruments. This device is part of the TPS702xx family, designed to provide a complete power management solution for split-supply applications. It integrates Supervisory Voltage (SVS) functions, including power-on reset (POR) and power good (PG) features. The regulator can supply up to 500mA on Regulator 1 and 250mA on Regulator 2, making it suitable for a variety of electronic systems requiring dual voltage outputs.
Key Specifications
| Parameter | Value |
|---|---|
| Package | HTSSOP (PWP) with 20 pins |
| Operating Temperature Range (°C) | -40 to 125 |
| Output Current Range | Regulator 1: 500mA, Regulator 2: 250mA |
| Voltage Options | Fixed: 3.3V/2.5V, 3.3V/1.8V, 3.3V/1.5V, 3.3V/1.2V; Adjustable |
| Quiescent Current | Typically 190µA at full load |
| Input Current During Standby | 1µA |
| Noise | 65µV RMS without bypass capacitor |
| Accuracy Over Load and Temperature | 2% |
| Undervoltage Lockout (UVLO) | VIN1 must reach 2.5V |
| Thermal Shutdown Protection | Yes |
Key Features
- Dual Output Voltages for Split-Supply Applications
- Independent Enable Functions for each regulator
- Fast Transient Response
- Open Drain Power-On Reset with 120ms Delay
- Open Drain Power Good for Regulator 1 and Regulator 2
- Ultralow Quiescent Current: 190µA (typ) at full load
- Low Noise: 65µV RMS without bypass capacitor
- Quick Output Capacitor Discharge Feature
- One Manual Reset Input
- 2% Accuracy Over Load and Temperature
- Undervoltage Lockout (UVLO) Feature
- 20-Pin PowerPAD TSSOP Package
- Thermal Shutdown Protection
Applications
The TPS70248PWPR is designed for various applications requiring dual voltage outputs, such as:
- Texas Instruments DSP, processor power, ASIC, and FPGA systems
- Digital systems where split-supply voltages are necessary
- Systems requiring low dropout voltage and high accuracy
- Applications needing integrated supervisory functions like power-on reset and power good signals
Q & A
- What is the maximum output current for Regulator 1 and Regulator 2 in the TPS70248PWPR?
Regulator 1 can support up to 500mA, and Regulator 2 can support up to 250mA.
- What are the available voltage options for the TPS70248PWPR?
The device offers fixed voltage options such as 3.3V/2.5V, 3.3V/1.8V, 3.3V/1.5V, 3.3V/1.2V, and adjustable voltage outputs.
- What is the quiescent current of the TPS70248PWPR at full load?
The quiescent current is typically 190µA at full load.
- Does the TPS70248PWPR have thermal shutdown protection?
- What is the operating temperature range of the TPS70248PWPR?
The operating temperature range is -40°C to 125°C.
- How does the undervoltage lockout (UVLO) feature work in the TPS70248PWPR?
The UVLO feature prevents the internal regulators from turning on until VIN1 reaches 2.5V.
- What is the noise level of the TPS70248PWPR without a bypass capacitor?
The noise level is 65µV RMS without a bypass capacitor.
- Does the TPS70248PWPR have power good and power-on reset features?
- How does the manual reset input function in the TPS70248PWPR?
The manual reset input allows for manual reset of the system, and the RESET output indicates the status of the manual reset pin.
- What is the package type and pin count of the TPS70248PWPR?
The device is packaged in a 20-pin HTSSOP (PWP) package.
