Texas Instruments TPS75201QPWP

Overview

TPS75201QPWP from Texas Instruments is a 2-A fast-transient-response low-dropout voltage regulator with integrated power-on reset (RESET) output, 1.5-V fixed output, 210-mV dropout at 2 A, 75-μA quiescent current, and thermal shutdown protection in a 20-pin TSSOP PowerPAD™ package. It delivers stable power to DSPs, FPGAs, and telecom baseband processors requiring precise undervoltage monitoring.

For engineers reviewing the TPS75201QPWP datasheet, TPS75201QPWP pinout, TPS75201QPWP application, or TPS75201QPWP equivalent, this page provides verified electrical parameters, validated RESET timing behavior, confirmed thermal derating curves for PWP package, and real-world capacitor stability guidance per TI SLVS242C.

Technical Context

The TPS75201QPWP uses a PMOS pass element enabling ultralow quiescent current (75 μA full-load, <1 μA shutdown) independent of output current. Its internal 1.1834-V reference feeds a comparator that monitors VOUT to assert open-drain RESET after 100-ms delay when output falls below 95% of nominal.

Designed for high-current, low-noise applications, it achieves fast transient response via optimized control-loop compensation and supports zero-load operation without minimum load requirement. Output stability requires 47-μF output capacitor with ESR between 100 mΩ and 10 Ω.

Key Specifications

Pinout & Package

TPS75201QPWP is housed in a thermally enhanced 20-pin TSSOP PowerPAD™ (PWP) package with exposed thermal pad on underside for PCB-level heat dissipation. The package measures 6.5 mm × 4.4 mm × 1.2 mm and requires soldering the GND/HEATSINK pins (1, 10, 11, 20) to a dedicated copper pour for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with TPS75201QPWP, TPS75215QPWP is functionally identical and interchangeable, while TPS7H3301-SP trades RESET integration and low dropout for radiation tolerance - making it unsuitable for standard terrestrial DSP/FPGA designs unless rad-hard compliance is mandatory.

Availability

TPS75201QPWP is available at Aetrix Electronics and suitable for telecom infrastructure, DSP-based motor control, and FPGA-accelerated edge computing applications requiring stable component supply, long-term lifecycle support, and guaranteed thermal performance in TSSOP PowerPAD™ packages.

Supply support for TPS75201QPWP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of LDO design expertise and broad automotive/industrial qualification.

The TPS752xxQ product line was engineered specifically for high-current, low-noise, reset-integrated power delivery in DSP, FPGA, and telecom baseband applications - emphasizing fast transient response, thermal resilience, and system-level reliability.

FAQ

What is the exact output voltage tolerance of the TPS75201QPWP over temperature and load?

The TPS75201QPWP has a guaranteed output voltage tolerance of ±2% across the full operating temperature range (–40°C to +125°C), line (2.7 V to 5.5 V input), and load (0 A to 2 A). This specification is validated per TI SLVS242C and applies to the 1.5-V fixed output version - meaning actual output remains within 1.470 V to 1.530 V under all specified conditions. The TPS75201QPWP uses an internal 1.1834-V reference and precision resistor divider to maintain this accuracy without external calibration.

Does the TPS75201QPWP require a minimum load current to maintain regulation?

No, the TPS75201QPWP does not require a minimum load current. Per TI SLVS242C Application Information section, the device is explicitly designed for zero-load stability - it maintains regulation and does not oscillate even with no output current. This eliminates the need for dummy loads in standby or low-power modes, reducing system power waste. The internal compensation and PMOS architecture enable stable operation from 0 mA to 2 A without external adjustments.

How does the RESET output of the TPS75201QPWP behave during power-up and brownout events?

The TPS75201QPWP RESET output is an open-drain, active-low signal with 100-ms debounce delay. During power-up, RESET remains low until VOUT reaches 95% of 1.5 V (i.e., 1.425 V), then transitions high-impedance after the 100-ms timer expires. During brownout, RESET asserts low immediately when VOUT drops below 1.425 V. The output requires an external pullup resistor (typically 10 kΩ to VCC) and is rated for 16.5-V max voltage. This behavior is confirmed in the Functional Block Diagram and Timing Diagram sections of SLVS242C.

What are the recommended output capacitor specifications for stable operation of the TPS75201QPWP?

TI specifies a minimum 47-μF output capacitor with ESR between 100 mΩ and 10 Ω for stable operation of the TPS75201QPWP. Solid tantalum, aluminum electrolytic, or multilayer ceramic capacitors meeting these criteria are acceptable. Larger capacitance improves load transient response; lower ESR reduces initial droop during step-load events. Figure 20 and Figure 21 in SLVS242C provide ESR vs. current graphs confirming stability boundaries - deviating outside this window risks oscillation or poor transient recovery.

Can the TPS75201QPWP be used in thermally constrained PCB layouts, and what is its maximum power dissipation at +70°C ambient?

Yes, the TPS75201QPWP is designed for thermally constrained layouts using its PowerPAD™ package. With recommended copper heatsink pattern on a low-K 1-layer board, it achieves 23.5 mW/°C derating above +25°C, allowing 1.9 W continuous dissipation at +70°C ambient (per Dissipation Ratings Table in SLVS242C). This assumes proper soldering of pins 1/10/11/20 to ≥4 in² copper area. At 2 A and 210-mV dropout, power dissipation is 420 mW - well within safe margin even without forced airflow.