Texas Instruments TPS7A0330PYCHR

Overview

TPS7A0330PYCHR from Texas Instruments is a nanopower, 200mA low-dropout linear regulator with 200nA quiescent current (typ), 1.5% output accuracy over temperature, and ultra-fast transient response (<10µs settling time). It delivers fixed 3.0V output across 1.5V–6.0V input range and supports battery-powered wearables, medical sensors, and smart metering where ultra-low IQ and dropout stability are critical.

For engineers reviewing the TPS7A0330PYCHR datasheet, TPS7A0330PYCHR pinout, TPS7A0330PYCHR application, or TPS7A0330PYCHR equivalent, key selection criteria include its 200nA IQ in dropout, 270mV max dropout at 200mA (VOUT = 3.3V), smart enable pulldown (500kΩ internal resistor), 1µF minimum stable output capacitance, and operation from –40°C to +125°C junction temperature.

Technical Context

The TPS7A0330PYCHR implements a PMOS pass transistor architecture enabling ultra-low quiescent current even in dropout mode, with ground current remaining at 220nA (typ) when VIN drops to 95% of VOUT. Its smart enable circuit integrates an internally controlled pulldown resistor that disconnects upon EN assertion, minimizing external component count and leakage during active operation.

Transient performance is optimized via internal compensation and fast error amplifier response, achieving <10µs settling time and only 80mV undershoot during 1mA-to-50mA load steps - critical for powering microcontrollers with burst-mode activity without brownout.

Key Specifications

Pinout & Package

TPS7A0330PYCHR is packaged in a 0.637mm × 0.637mm, 4-pin DSBGA (YCH) with bottom-side ball layout. The thermal pad is internally connected to GND and must be soldered to a 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 TPS7A0230PDBVR and MCP1703T-3002E/MB, the TPS7A0330PYCHR delivers the lowest quiescent current and smallest package - making it uniquely suited for miniaturized, long-life battery applications where every nanoamp and square millimeter matters.

Availability

TPS7A0330PYCHR is available at Aetrix Electronics and suitable for wearable electronics, smart utility meters, residential circuit breakers, and building security sensors requiring stable component supply and long-term lifecycle support.

Supply support for TPS7A0330PYCHR 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 industrial, automotive, and consumer markets.

The TPS7A03 series was designed specifically for ultra-low-power, space-constrained applications - delivering nanopower efficiency without sacrificing transient performance or thermal robustness in harsh environments.

FAQ

What is the maximum output current capability of the TPS7A0330PYCHR?

The TPS7A0330PYCHR 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 robust short-circuit protection while sustaining full-rated load across its operating temperature range (–40°C to +125°C). This makes the TPS7A0330PYCHR suitable for powering mixed-signal SoCs and RF transceivers in compact battery-operated systems.

Does the TPS7A0330PYCHR require an external pull-down resistor on the EN pin?

No, the TPS7A0330PYCHR features a smart enable pulldown circuit with an internal 500kΩ resistor that holds the EN pin low when floating - eliminating the need for an external pull-down. This resistor is automatically disconnected once EN is driven above 1.1V, preventing unnecessary current draw during active operation. The TPS7A0330PYCHR thus reduces BOM count and PCB area while improving reliability in high-density layouts.

What is the minimum output capacitance required for stability with the TPS7A0330PYCHR?

The TPS7A0330PYCHR is stable with a minimum effective output capacitance of 1µF ceramic. While 0.5µF is the absolute lower bound for basic stability, TI specifies 1µF or greater to ensure optimal transient response and phase margin across process, voltage, and temperature variations. Using a 1µF X7R 0201 or 0402 capacitor directly at the TPS7A0330PYCHR's OUT pin meets both stability and space constraints in wearables and medical sensors.

How does the TPS7A0330PYCHR perform during input voltage transients?

The TPS7A0330PYCHR maintains tight regulation during input transients: for a 2.8V-to-4.8V step (1V/µs slew rate) at 200mA load, output deviation is limited to ±6mV. Its PSRR reaches 55dB at 1kHz and remains >30dB up to 100kHz, effectively rejecting noise from switching regulators or noisy DC-DC stages upstream. This behavior is confirmed in Figures 5-22 through 5-24 of the official SBVS375D datasheet for the TPS7A0330PYCHR.

Is the TPS7A0330PYCHR compatible with ceramic capacitors having low ESR?

Yes, the TPS7A0330PYCHR is explicitly designed for use with low-ESR ceramic capacitors - including X5R and X7R dielectrics - and does not require added series resistance for stability. Its internal compensation is optimized for 1µF–22µF ceramic output capacitors, enabling direct replacement of larger tantalum or aluminum electrolytic caps. This compatibility reduces cost, size, and failure risk in long-life applications like smoke detectors and water meters where the TPS7A0330PYCHR is commonly deployed.