Texas Instruments TLV70733DQNR1

Overview

TLV70733DQNR1 from Texas Instruments is a 200-mA, low-quiescent-current (25 μA), low-noise LDO regulator with 3.3-V fixed output, 0.5% DC accuracy, and 70 dB PSRR at 100 Hz. It operates from 2.0 V to 5.5 V input and delivers stable regulation down to 0.1-μF ceramic output capacitance. It serves as a power supply for RF-sensitive subsystems in portable electronics.

For engineers reviewing the TLV70733DQNR1 datasheet, TLV70733DQNR1 pinout, TLV70733DQNR1 application, or TLV70733DQNR1 equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV), shutdown current (1 μA), thermal shutdown/overcurrent protection, and compatibility with space-constrained 1-mm × 1-mm X2SON packaging.

Technical Context

The TLV70733DQNR1 uses a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR across 100 Hz–1 MHz. Its enable pin (EN) has TTL-compatible thresholds (VIH = 0.9 V, VIL = 0.4 V), supporting direct GPIO interfacing with modern low-voltage processors.

It features internal current limiting (240–450 mA), thermal shutdown, and-unlike the base TLV707-is part of the TLV707P variant family, incorporating an active 120-Ω pulldown circuit to discharge the output during shutdown, preventing floating rail conditions in sequencing-critical systems.

Key Specifications

Pinout & Package

TLV70733DQNR1 is housed in a 1-mm × 1-mm DQN (X2SON-4) package with wettable flanks, optimized for automated optical inspection (AOI) and thermal performance in compact portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F33TJV50 and AP7361C-33SG-7, TLV70733DQNR1 offers the lowest quiescent current (25 μA) and smallest footprint (1 mm²), making it optimal for space- and battery-constrained portable designs-but lacks automotive qualification and has lower current limit than either alternative.

Availability

TLV70733DQNR1 is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hubs, and wireless gaming peripherals requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TLV70733DQNR1 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, embedded processing, and connectivity technologies, with decades of LDO design heritage and broad distribution infrastructure.

The TLV707 series was engineered specifically for portable RF applications demanding low noise, low IQ, and minimal board area-enabling next-generation wearables, smartphones, and wireless peripherals.

FAQ

What is the minimum output capacitance required for stable operation of TLV70733DQNR1?

The TLV70733DQNR1 is stable with an effective output capacitance as low as 0.1 μF, enabling use of small-footprint X5R/X7R ceramic capacitors. This specification accounts for voltage and temperature derating-so a 0.1-μF rated capacitor must maintain ≥0.1 μF under actual operating bias and temperature. Larger values (e.g., 1 μF) improve transient response but are not required for stability.

Does TLV70733DQNR1 include an active pulldown circuit on the output pin?

Yes, TLV70733DQNR1 belongs to the TLV707P variant family and integrates an active 120-Ω pulldown resistor on the OUT pin. When the EN pin is driven below 0.4 V, this circuit rapidly discharges the output capacitor, preventing floating voltages that could cause downstream logic glitches or latch-up in multi-rail systems.

What is the typical dropout voltage of TLV70733DQNR1 at 150 mA load current?

The typical dropout voltage of TLV70733DQNR1 at 150 mA is 220 mV for V_OUT = 3.3 V, measured at T_J = 25°C. The maximum specified dropout is 270 mV across –40°C to +125°C junction temperature, ensuring reliable regulation even under worst-case thermal and process conditions.

Can TLV70733DQNR1 be used with a 1.8-V GPIO to control the EN pin?

Yes, TLV70733DQNR1's EN pin has a VIH threshold of only 0.9 V (min), making it fully compatible with 1.8-V GPIO outputs. This eliminates the need for external level-shifting circuitry and simplifies integration with modern low-voltage microcontrollers and application processors.

What protection features are integrated into TLV70733DQNR1?

TLV70733DQNR1 integrates thermal shutdown and overcurrent protection. When junction temperature exceeds safe limits or output current exceeds the internal current limit (240–450 mA), the device enters foldback or shutdown mode and auto-recovers once conditions normalize-preventing permanent damage during fault events without requiring external supervision circuitry.