Overview
The TPS70358PWPR is a dual-output low-dropout voltage regulator designed by Texas Instruments. This device is part of the TPS703xx family, which provides a complete power management solution for split-voltage systems, particularly in Digital Signal Processor (DSP) applications. It offers dual regulated output voltages, fast transient response, and high accuracy, making it ideal for high-performance power management needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 6 | V |
| Output Current (Regulator 1) | 0 to 1 | A |
| Output Current (Regulator 2) | 0 to 2 | A |
| Output Voltages | 3.3 V / 2.5 V | V |
| Quiescent Current | 185 mA (typ) | mA |
| Standby Current | 2 mA | mA |
| Accuracy Over Load and Temperature | 2% | % |
| Thermal Shutdown Junction Temperature | +150 | °C |
| Operating Temperature Range | -40 to +125 | °C |
| Package Type | HTSSOP (PWP) - 24 pins |
Key Features
- Dual Output Voltages for Split-Supply Applications
- Independent Enable Functions (see TPS704xx for independent enabling of each output)
- Output Current Range of 1 A on Regulator 1 and 2 A on Regulator 2
- Fast Transient Response
- Voltage Options: 3.3 V/2.5 V, 3.3 V/1.8 V, etc.
- Open Drain Power-On Reset with 120 ms Delay
- Open Drain Power Good for Regulator 1
- Ultralow Quiescent Current
- Low Noise: 78 mVRMS Without Bypass Capacitor
- Quick Output Capacitor Discharge Feature
- Two Manual Reset Inputs
- Undervoltage Lockout (UVLO) Feature
- Thermal Shutdown Protection
Applications
The TPS70358PWPR is designed for applications requiring high-performance power management, particularly in:
- Digital Signal Processor (DSP) systems
- Processor power management
- ASIC and FPGA power supply
- Other digital applications requiring dual output voltage regulators with power sequencing
Q & A
- What is the primary application of the TPS70358PWPR?
The TPS70358PWPR is primarily designed for Digital Signal Processor (DSP) applications and other digital systems requiring dual output voltage regulators with power sequencing.
- What are the output voltage options for the TPS70358PWPR?
The device offers output voltage options such as 3.3 V/2.5 V, 3.3 V/1.8 V, among others.
- What is the maximum output current for each regulator?
Regulator 1 can supply up to 1 A, while Regulator 2 can supply up to 2 A.
- What is the quiescent current of the TPS70358PWPR?
The quiescent current is typically 185 mA.
- Does the TPS70358PWPR have thermal shutdown protection?
- How does the power-up sequencing work?
The power-up sequencing can be controlled via the SEQ terminal. When the SEQ terminal is pulled high or left open, VOUT2 turns on first, and VOUT1 turns on after VOUT2 reaches approximately 83% of its regulated output voltage.
- What is the purpose of the RESET and PG1 pins?
The RESET pin provides an active low, open drain power-on reset output, while the PG1 pin reports the voltage condition at VOUT1 and can be used to implement a power-on reset for the circuitry supplied by regulator 1.
- What is the package type of the TPS70358PWPR?
The device is packaged in a 24-pin HTSSOP (PWP).
- What is the operating temperature range of the TPS70358PWPR?
The operating temperature range is -40°C to +125°C.
- Does the TPS70358PWPR have manual reset inputs?
