Texas Instruments TPS7A0215DQNR

Overview

TPS7A0215DQNR 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 3.3 V output. It features fast transient response (<10 µs settling), smart enable pulldown, and stable operation with ≥1 µF output capacitance - designed for battery-powered wearables and medical sensors.

For engineers reviewing the TPS7A0215DQNR datasheet, TPS7A0215DQNR pinout, TPS7A0215DQNR application, or TPS7A0215DQNR equivalent, key selection criteria include ultra-low IQ in dropout, 1.5-V minimum input, fixed 1.5-V output, X2SON-4 package footprint, and thermal performance up to 125°C junction temperature.

Technical Context

The TPS7A0215DQNR implements a PMOS pass transistor architecture enabling ultra-low quiescent current across full load and dropout conditions. Its internal smart enable circuit integrates a temperature-compensated pulldown resistor (500 kΩ typ) that ensures reliable disable state without external components.

Transient response is optimized via high-bandwidth error amplifier and low-output-impedance design, achieving <10 µs settling time with 100-mV undershoot during 1–50 mA load steps. The device operates across 1.5–6.0 V input and maintains 1.5% output accuracy over temperature with UVLO (1.3 V typ) and thermal shutdown (170°C).

Key Specifications

Pinout & Package

TPS7A0215DQNR uses the DQN (X2SON-4) package: 1.0 mm × 1.0 mm, 0.4-mm pitch, 4-pin configuration with exposed thermal pad connected internally to GND.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A0215DQNR, TPS7A0315PDBVR offers identical electrical specs in a larger, more manufacturable package, while MCP1700T-1502E/TT trades ultra-low IQ and protection features for lower cost and simpler integration - making TPS7A0215DQNR optimal for space- and battery-limited designs demanding highest reliability.

Availability

TPS7A0215DQNR is available at Aetrix Electronics and suitable for wearable electronics, utility metering, and portable medical diagnostics requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for TPS7A0215DQNR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TPS7A02 product line was engineered specifically for ultra-low-power, battery-operated systems where nanoscale quiescent current, fast transient response, and small-footprint packaging are mandatory - targeting next-generation IoT edge nodes and medical wearables.

FAQ

What is the maximum input voltage rating for TPS7A0215DQNR?

The absolute maximum input voltage for TPS7A0215DQNR is 6.5 V, but the recommended operating range is 1.5 V to 6.0 V. Exceeding 6.5 V risks permanent damage. For reliable operation with margin, keep VIN ≤ 6.0 V under all conditions including transients - especially critical in energy-harvesting or multi-cell battery applications where voltage spikes may occur.

Does TPS7A0215DQNR require an external pull-down resistor on the EN pin?

No, TPS7A0215DQNR does not require an external pull-down resistor on the EN pin. It integrates a smart enable pulldown with 500 kΩ typical resistance that automatically disconnects when EN is driven high. This feature eliminates external components, reduces BOM count, and ensures robust disable behavior even with floating EN - a key advantage over conventional LDOs like the TPS7A0315DQNR.

What output capacitor value is required for stability with TPS7A0215DQNR?

TPS7A0215DQNR is stable with a minimum effective output capacitance of 0.5 µF, but a 1 µF or larger ceramic capacitor is required for optimal transient response. The datasheet specifies 1 µF as the recommended value for load steps up to 200 mA. Using ≥1 µF X7R/X5R MLCC placed within 2 mm of the OUT and GND pins ensures stability across –40°C to +125°C without ESR constraints.

How does the dropout voltage of TPS7A0215DQNR vary with output current?

At 1.5 V output, TPS7A0215DQNR exhibits 270 mV maximum dropout voltage at 200 mA load and 25°C. Dropout increases with temperature and decreases slightly at lower currents - e.g., ~150 mV at 100 mA and 25°C. Full characterization is provided in Figure 6-32 of the datasheet, confirming monotonic rise with IOUT across –40°C to +125°C, enabling accurate minimum input voltage calculation for battery discharge profiles.

Is TPS7A0215DQNR qualified for automotive applications?

TPS7A0215DQNR is not AEC-Q200 qualified and is specified for industrial temperature range (–40°C to +125°C), not automotive grade (–40°C to +150°C). While it operates reliably up to +125°C junction temperature and includes thermal shutdown, it lacks automotive-specific qualification testing (e.g., HTOL, vibration, ESD enhancements). For automotive body electronics, consider TI's TPS7B87xx-Q1 series instead.