Texas Instruments TLV70733ADQNR

Overview

TLV70733ADQNR from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise LDO regulator delivering 3.3 V output with ±0.5% DC accuracy and 45 µV_RMS output noise (100 Hz–100 kHz). It features 70 dB PSRR at 100 Hz, supports 0.1 µF minimum output capacitance, and operates across –40°C to +125°C junction temperature for power-sensitive portable RF systems.

For engineers reviewing the TLV70733ADQNR datasheet, TLV70733ADQNR pinout, TLV70733ADQNR application, or TLV70733ADQNR equivalent, key selection criteria include dropout voltage (220 mV @ 150 mA, 3.3 V_OUT), enable threshold (0.9 V high, 0.4 V low), shutdown current (1 µA), thermal shutdown, and overcurrent protection in its 1-mm × 1-mm X2SON package.

Technical Context

The TLV70733ADQNR uses a PMOS pass transistor architecture enabling ultra-low dropout and stable operation with minimal 0.1 µF effective output capacitance-reducing BOM cost and PCB area. Its active-high EN pin interfaces directly with low-voltage GPIOs (≥0.9 V logic high), and internal bandgap reference ensures tight 0.5% output regulation across load (0–200 mA), line (2.0–5.5 V input), and temperature (–40°C to +125°C).

Unlike standard LDOs, it integrates thermal shutdown and foldback current limiting (240–450 mA typical) to protect against sustained overload. The TLV70733ADQNR variant belongs to the TLV707A subfamily, confirmed by revision history and electrical characteristics tables specifying tighter dropout and current-limit parameters versus base TLV707.

Key Specifications

Pinout & Package

TLV70733ADQNR is housed in a 1-mm × 1-mm DQN (X2SON-4) package with wettable flank leads for automated optical inspection. Thermal pad on underside enhances thermal performance (R_θJA = 208.1°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F33TJ and AP7361D-33SG-7, TLV70733ADQNR uniquely balances ultra-small 1-mm² footprint, 25-µA I_Q, 0.5% accuracy, and 0.1-µF stability-making it optimal for space- and battery-constrained portable electronics where full automotive qualification or sub-µA sleep current are not needed.

Availability

TLV70733ADQNR is available at Aetrix Electronics and suitable for smartphone power rails, wearable sensor hubs, wireless gaming peripherals, and TV set-top box USB ports requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV70733ADQNR 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 delivering analog and embedded processing solutions for industrial, automotive, personal electronics, and communications markets.

The TLV707 series was designed specifically for portable, battery-powered RF applications demanding ultra-low quiescent current, high PSRR, and minimal external components-enabling compact, energy-efficient power architectures.

FAQ

What is the maximum input voltage rating for TLV70733ADQNR?

The absolute maximum input voltage for TLV70733ADQNR is 6.0 V, per the Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. For reliable continuous operation, the recommended input range is 2.0 V to 5.5 V, ensuring proper regulation and thermal performance across all load and temperature conditions.

Does TLV70733ADQNR require an external pull-up resistor on the EN pin?

No, TLV70733ADQNR does not require an external pull-up resistor on the EN pin. Its EN pin draws only 0.01 µA leakage current and has defined logic thresholds (V_IH = 0.9 V, V_IL = 0.4 V). When enable functionality is not needed, EN may be directly tied to IN; otherwise, it can be driven by low-power GPIOs without additional biasing components.

Can TLV70733ADQNR operate with zero load current?

Yes, TLV70733ADQNR regulates to its specified 3.3 V ±0.5% accuracy with no output load. This zero-load capability is explicitly stated in the device description and verified in electrical characteristics testing conditions (I_OUT = 1 mA down to 0 mA), making it suitable for standby circuits and always-on monitoring functions.

What is the thermal shutdown behavior of TLV70733ADQNR?

TLV70733ADQNR activates thermal shutdown when junction temperature exceeds ~150°C (absolute max), disabling the output until the die cools sufficiently. During sustained overload, it cycles between current limit and thermal shutdown. Recovery is automatic upon cooling-no external reset is required. This behavior is inherent to the integrated protection circuitry and applies across all operating conditions.

Is TLV70733ADQNR pin-compatible with other variants in the TLV707 family?

Yes, TLV70733ADQNR shares identical pinout (OUT, GND, IN, EN) and package (DQN/X2SON-4) with all TLV707 and TLV707P variants-including TLV70712, TLV70728, and TLV70750. Voltage-specific versions differ only in internal feedback network; thus, they are mechanically and electrically interchangeable on the same PCB footprint.