Texas Instruments TPS7A0330PDQNRM3

Overview

TPS7A0330PDQNRM3 from Texas Instruments is a nanopower, 200mA low-dropout linear regulator with 200nA quiescent current (typ), 3.3V fixed output, and ultra-fast transient response (<10µs settling time). It operates from 1.5V to 6.0V input, delivers ±1.5% output accuracy over –40°C to +125°C, and maintains ultra-low IQ even in dropout-enabling multi-year battery life in always-on IoT sensors.

For engineers reviewing the TPS7A0330PDQNRM3 datasheet, TPS7A0330PDQNRM3 pinout, TPS7A0330PDQNRM3 application, or TPS7A0330PDQNRM3 equivalent, this device is selected for ultra-low-power wearable health monitors, smart metering endpoints, and safety-critical battery-backed security sensors where microamp-level ground current and sub-10µs load-step recovery are mandatory design requirements.

Technical Context

The TPS7A0330PDQNRM3 implements a PMOS pass transistor architecture enabling true ultra-low IQ operation independent of load or input voltage, with no increase in quiescent current during dropout. Its smart enable circuit integrates a temperature-stable 500kΩ internal pulldown resistor that ensures reliable disable state when EN floats-eliminating external pull-down components.

Transient performance is optimized via internal compensation stable with ≥1µF ceramic output capacitance; undershoot is limited to 80mV during 1mA→50mA load steps. UVLO (1.23–1.47V rising threshold) and thermal shutdown (170°C trip) provide robust fault protection across industrial temperature range.

Key Specifications

Pinout & Package

TPS7A0330PDQNRM3 is packaged in a 1.0mm × 1.0mm, 4-pin X2SON (DQN) package with wettable flanks. The thermal pad is internally connected to GND and must be soldered to a large-area PCB ground plane for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A0330PDQNRM3, TPS7A0233PDQNR offers identical regulation performance in a smaller footprint but demands tighter assembly control, while MCP1703T-3302E/MB trades 12× higher IQ for lower unit cost-making it viable only in line-powered or short-life applications.

Availability

TPS7A0330PDQNRM3 is available at Aetrix Electronics and suitable for wearable electronics, smart utility meters, and residential safety devices requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TPS7A0330PDQNRM3 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 and embedded processing technologies, with decades of expertise in precision power management ICs.

The TPS7A03 family was engineered specifically for ultra-low-power, battery-operated endpoints-prioritizing nanoscale IQ, robust transient immunity, and extended temperature reliability over cost or feature count.

FAQ

What is the maximum output current capability of the TPS7A0330PDQNRM3?

The TPS7A0330PDQNRM3 is rated for continuous output current up to 200mA. Its internal current limit is specified at 240–750mA depending on output voltage and input conditions, providing headroom for short-duration peak loads without shutdown. For sustained 200mA operation, ensure proper PCB thermal design using the exposed thermal pad per TI's layout guidelines.

Does the TPS7A0330PDQNRM3 require an external pull-down resistor on the EN pin?

No, the TPS7A0330PDQNRM3 features a built-in smart enable pulldown resistor (500kΩ typical at 25°C) that actively holds the EN pin low when floating-ensuring reliable disable state without external components. This resistor disconnects automatically when EN is driven high, eliminating leakage paths during active operation.

Can the TPS7A0330PDQNRM3 operate with a 1µF output capacitor?

Yes, the TPS7A0330PDQNRM3 is explicitly designed to be stable with a minimum 1µF ceramic output capacitor. This value is sufficient for both DC stability and fast transient response; larger values (up to 22µF) are acceptable but do not improve stability margin. Use X5R/X7R dielectrics with low ESR and place the capacitor within 2mm of the OUT and GND pins.

What is the dropout voltage of the TPS7A0330PDQNRM3 at 200mA load?

At 200mA load and 3.3V output, the TPS7A0330PDQNRM3 has a maximum dropout voltage of 270mV over –40°C to +85°C, and 310mV over –40°C to +125°C. This means it can maintain regulation down to VIN = 3.57V (3.3V + 0.27V) at room temperature, enabling use with aging batteries or low-headroom sources.

Is the TPS7A0330PDQNRM3 compatible with lead-free reflow profiles?

Yes, the TPS7A0330PDQNRM3 in the DQN (X2SON) package is qualified for standard lead-free reflow per JEDEC J-STD-020. Its MSL level is 2a, with a floor life of 4 weeks at ≤30°C/60% RH. Bake time prior to reflow is required if floor life is exceeded, per TI's packaging documentation.