Overview
The TPS70302PWPR is a dual-channel, ultra-low-dropout (LDO) voltage regulator produced by Texas Instruments. This device is part of the TPS703xx family, designed to provide a complete power management solution for various applications, including TI DSP, processor power, ASIC, FPGA, and digital systems where dual output voltage regulators are required.
The TPS70302PWPR is particularly suited for split-supply applications and offers easy programmability of the sequencing function, making it ideal for power sequencing requirements in TI DSP applications.
Key Specifications
| Specification | Description |
|---|---|
| Package | HTSSOP (PWP) with 24 pins |
| Operating Temperature Range | -40°C to 125°C |
| Output Current | Regulator 1: 1 A, Regulator 2: 2 A |
| Voltage Options | Fixed: 3.3 V/2.5 V, 3.3 V/1.8 V, 3.3 V/1.5 V, 3.3 V/1.2 V; Adjustable: 1.22 V to 5.5 V |
| Quiescent Current | 185 µA (typical), 2 µA in standby |
| Dropout Voltage | Typically 160 mV on Regulator 1 |
| Noise | 78 µV RMS without bypass capacitor |
| Power-Up Sequencing | Controlled by SEQ pin |
| Power Good and Reset | Open drain power good for Regulator 1, open drain power-on reset with 120 ms delay |
| Thermal Protection | Thermal shutdown protection |
Key Features
- Dual output voltages for split-supply applications
- Independent enable functions for each regulator
- Fast transient response and stability with 47 µF low ESR capacitors
- Ultralow quiescent current and low input current during standby
- Low noise output performance without added filter bypass capacitors
- Open drain power-on reset with 120 ms delay and open drain power good for Regulator 1
- Quick output capacitor discharge feature and two manual reset inputs
- 2% accuracy over load and temperature
- Undervoltage lockout (UVLO) feature and thermal shutdown protection
- 24-Pin PowerPAD™ TSSOP package
Applications
The TPS70302PWPR is designed for various power management applications, including:
- Texas Instruments DSP (Digital Signal Processor) systems
- Processor power management
- ASIC (Application-Specific Integrated Circuit) and FPGA (Field-Programmable Gate Array) power management
- Digital systems requiring dual output voltage regulators
- Split-supply applications where sequencing of power-up is critical
Q & A
- What is the package type of the TPS70302PWPR?
The TPS70302PWPR comes in a 24-pin HTSSOP (PWP) package.
- What are the output current capabilities of the TPS70302PWPR?
Regulator 1 can support up to 1 A, and Regulator 2 can support up to 2 A.
- What are the voltage options available for the TPS70302PWPR?
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 adjustable voltage options from 1.22 V to 5.5 V.
- What is the quiescent current of the TPS70302PWPR?
The quiescent current is typically 185 µA, and it reduces to 2 µA in standby mode.
- Does the TPS70302PWPR have power-up sequencing capabilities?
Yes, the power-up sequence is controlled by the SEQ pin, allowing for customizable sequencing of the regulators.
- What is the dropout voltage of the TPS70302PWPR?
The dropout voltage is typically 160 mV on Regulator 1.
- Does the TPS70302PWPR have thermal protection?
Yes, it features thermal shutdown protection).
- What is the noise performance of the TPS70302PWPR?
The device has low noise output performance, with 78 µV RMS without any added filter bypass capacitors).
- How does the power good and reset function work on the TPS70302PWPR?
The device has an open drain power good for Regulator 1 and an open drain power-on reset with a 120 ms delay).
- What are the key applications for the TPS70302PWPR?
The device is used in TI DSP systems, processor power management, ASIC, FPGA, and digital systems requiring dual output voltage regulators).
