Overview
The TPS70358PWP, produced by Texas Instruments, is a dual-output, low dropout voltage regulator designed for high-performance power management in various applications, particularly those requiring dual output voltage regulators such as DSP, processor power, ASIC, and FPGA systems. This device is part of the TPS703xx family and offers a comprehensive power management solution with features like power sequencing, supervisory circuits, and low quiescent current.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 6 | V |
| Output Voltage Options | 3.3 V / 2.5 V | V |
| Output Current (Regulator 1) | 0 to 1 A | A |
| Output Current (Regulator 2) | 0 to 2 A | A |
| Quiescent Current | 185 mA (typ) | mA |
| Standby Current | 2 mA | mA |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | HTSSOP-24 (PWP) | |
| Thermal Shutdown Junction Temperature | +150°C | °C |
| Power-Supply Rejection Ratio (PSRR) | 60 dB (typ) at 1 kHz | dB |
| Output Voltage Accuracy | 2% over load and temperature | % |
Key Features
- Dual output voltages for split-supply applications
- Independent enable functions for each regulator
- Fast transient response and stability with low ESR capacitors
- Low noise output performance without bypass capacitors
- Programmable power-up sequencing
- Integrated SVS (power-on reset) and power good (PG1) features
- Manual reset inputs (MR1 and MR2)
- Quick output capacitor discharge feature
- Undervoltage lockout (UVLO) feature
- Thermal shutdown protection
Applications
The TPS70358PWP is designed for various high-performance applications, including:
- Texas Instruments DSP (Digital Signal Processor) power management
- Processor power management
- ASIC (Application-Specific Integrated Circuit) and FPGA (Field-Programmable Gate Array) power management
- Digital systems requiring dual regulated output voltages
Q & A
- What is the input voltage range for the TPS70358PWP?
The input voltage range is from 2.7 V to 6 V.
- What are the output voltage options for the TPS70358PWP?
The output voltage options are 3.3 V and 2.5 V.
- What is the maximum output current for Regulator 1 and Regulator 2?
Regulator 1 can supply up to 1 A, and Regulator 2 can supply up to 2 A.
- What is the quiescent current of the TPS70358PWP?
The quiescent current is typically 185 mA.
- Does the TPS70358PWP have thermal shutdown protection?
- How does the power-up sequencing work in the TPS70358PWP?
The power-up sequencing can be programmed using the SEQ terminal. By default, VOUT2 turns on first, and VOUT1 turns on after VOUT2 reaches approximately 83% of its regulated output voltage.
- What is the purpose of the PG1 and RESET pins?
The PG1 pin reports the voltage condition at VOUT1, and the RESET pin provides an active low, open drain output for power-on reset functionality.
- What is the operating temperature range of the TPS70358PWP?
The operating temperature range is from -40°C to +125°C.
- What package type is the TPS70358PWP available in?
The device is available in an HTSSOP-24 (PWP) package.
- Does the TPS70358PWP have undervoltage lockout (UVLO) feature?
