Texas Instruments TPS7A0228PYCHR

Overview

TPS7A0228PYCHR from Texas Instruments is an ultra-low-quiescent-current LDO voltage regulator delivering 200 mA output with 25 nA typical IQ, 1.5% output accuracy over –40°C to +125°C, and 270 mV max dropout at 200 mA (VOUT = 3.3 V). It supports 1.5–6.0 V input and fixed 2.8 V output, enabling long-life battery operation in space-constrained IoT sensors.

For engineers reviewing the TPS7A0228PYCHR datasheet, TPS7A0228PYCHR pinout, TPS7A0228PYCHR application, or TPS7A0228PYCHR equivalent, key selection criteria include nanopower shutdown current (3 nA), <10-µs transient settling time under 1–50 mA load steps, smart enable pulldown functionality, and stability with ≥1-µF ceramic output capacitance.

Technical Context

The TPS7A0228PYCHR implements a PMOS pass transistor architecture optimized for ultra-low IQ across full input range and dropout conditions. Its internal smart enable circuit integrates a temperature-compensated 500-kΩ pulldown resistor that ensures reliable disable state without external components, while disconnecting during active operation to minimize leakage.

Transient response is enhanced via high-gain error amplifier and low-ESR capacitor compatibility (1–22 µF), achieving ≤100-mV undershoot during 1–50 mA load steps with 1-µF COUT. UVLO (1.23–1.47 V rising threshold) and thermal shutdown (170°C trip) provide robust system-level protection.

Key Specifications

Pinout & Package

TPS7A0228PYCHR uses the YCH package: 4-pin DSBGA, 0.64 mm × 0.64 mm, 0.35-mm pitch, bottom-side thermal pad connected to GND.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TNPS7A0228PDQNR and TPS7A0328PDBVR, the TPS7A0228PYCHR offers the smallest footprint (0.41 mm²) and lowest thermal resistance to board (67.3°C/W), making it optimal for ultra-dense wearable and metering PCBs where space and thermal dissipation are co-constrained.

Availability

TPS7A0228PYCHR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, residential circuit breakers, and building security sensors requiring stable component supply with guaranteed long-term availability.

Supply support for TPS7A0228PYCHR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for battery-powered and industrial systems.

The TPS7A02 family was designed to address nanopower system requirements in battery-operated IoT endpoints, offering best-in-class quiescent current without sacrificing transient performance or thermal robustness.

FAQ

What is the output voltage of the TPS7A0228PYCHR?

The TPS7A0228PYCHR provides a fixed 2.8 V output voltage, factory-trimmed to ±1.5% accuracy over –40°C to +125°C operating junction temperature. This value is laser-trimmed during production and does not require external feedback resistors.

Does the TPS7A0228PYCHR require an external pull-down resistor on the EN pin?

No - the TPS7A0228PYCHR integrates a smart enable pulldown resistor (500 kΩ typ at 25°C) on the EN pin, ensuring reliable disable state when the pin is left floating. External pull-down is unnecessary and may degrade shutdown current performance.

What is the minimum output capacitance required for stability with the TPS7A0228PYCHR?

The TPS7A0228PYCHR is stable with a minimum 1-µF ceramic output capacitor (X5R/X7R, 0402 or larger). Effective capacitance must remain ≥1 µF after DC bias and temperature derating; 2.2 µF is recommended for margin in high-reliability designs.

Can the TPS7A0228PYCHR operate with a 1.5-V input supply?

Yes - the TPS7A0228PYCHR supports input voltages from 1.5 V to 6.0 V. At VIN = 1.5 V and VOUT = 2.8 V, the device operates in dropout mode with 25-nA IQ maintained, though no regulated output is delivered until VIN exceeds VOUT + VDO (≈3.07 V).

What package type is used by the TPS7A0228PYCHR?

The TPS7A0228PYCHR uses the YCH package: a 4-pin DSBGA (die-size ball grid array) measuring 0.64 mm × 0.64 mm with 0.35-mm ball pitch and bottom-side thermal pad electrically connected to GND.