Overview
The TPS70202PWPR is a dual-channel low-dropout voltage regulator produced by Texas Instruments. This device is designed for split-supply applications and integrates various supervisory functions such as power-on reset (POR), power good (PG), and manual reset. The TPS70202PWPR can supply up to 500mA on regulator 1 and 250mA on regulator 2, making it suitable for a wide range of power management needs. It features a low quiescent current, fast transient response, and low noise output, enhancing its performance in various electronic systems.
Key Specifications
| Parameter | Description |
|---|---|
| Package | HTSSOP-20 |
| Pins | 20 |
| Operating Temperature Range | -40°C to 125°C |
| Output Current (Regulator 1) | Up to 500mA |
| Output Current (Regulator 2) | Up to 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 |
| Dropout Voltage | Typically 170mV on regulator 1 |
| Power Good and Power-On Reset | Open drain PG and POR outputs for both regulators |
| Manual Reset Input | One manual reset input |
| Accuracy | 2% over load and temperature |
| Undervoltage Lockout (UVLO) | Prevents internal regulators from turning on until V_IN1 reaches 2.5V |
Key Features
- Dual output voltages for split-supply applications
- Independent enable functions for each regulator
- Fast transient response and low noise output
- Ultralow quiescent current (typically 190µA at full load)
- Low dropout voltage (typically 170mV on regulator 1)
- Open drain power good and power-on reset outputs for both regulators
- Manual reset input and undervoltage lockout (UVLO) feature
- Quick output capacitor discharge feature
- Thermal shutdown protection
- 20-pin PowerPAD TSSOP package
Applications
The TPS70202PWPR is suitable for various applications requiring dual voltage regulation, such as:
- Split-supply systems in industrial and automotive electronics
- Power management in telecommunications and networking equipment
- Consumer electronics requiring multiple voltage levels
- Medical devices needing reliable and low-noise power supply
- Embedded systems and IoT devices with multiple voltage requirements
Q & A
- What is the maximum output current for each regulator in the TPS70202PWPR?
Regulator 1 can supply up to 500mA, and regulator 2 can supply up to 250mA.
- What are the available voltage options for the TPS70202PWPR?
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 options.
- What is the typical quiescent current of the TPS70202PWPR?
The typical quiescent current is 190µA at full load.
- Does the TPS70202PWPR have power good and power-on reset features?
- What is the dropout voltage for regulator 1 in the TPS70202PWPR?
The dropout voltage for regulator 1 is typically 170mV.
- How does the undervoltage lockout (UVLO) feature work in the TPS70202PWPR?
The UVLO feature prevents the internal regulators from turning on until V_IN1 reaches 2.5V.
- What is the package type and pin count of the TPS70202PWPR?
The device comes in a 20-pin HTSSOP (PowerPAD TSSOP) package.
- Does the TPS70202PWPR have thermal shutdown protection?
- What is the operating temperature range of the TPS70202PWPR?
The operating temperature range is -40°C to 125°C.
- How does the manual reset input work in the TPS70202PWPR?
The manual reset input allows for manual reset of the device, and it can be connected to the power good outputs to monitor the voltage conditions.
