Texas Instruments TLV70736PDQNR

Overview

TLV70736PDQNR from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise LDO regulator with 3.6-V fixed output voltage, 0.5% DC accuracy, and 70 dB PSRR at 100 Hz - designed for power-sensitive portable electronics such as wearables and wireless handsets.

For engineers reviewing the TLV70736PDQNR datasheet, TLV70736PDQNR pinout, TLV70736PDQNR application, or TLV70736PDQNR equivalent, key selection criteria include dropout voltage (220 mV @ 150 mA), thermal shutdown/overcurrent protection, 0.1-µF minimum stable output capacitance, and active pulldown (120-Ω) for fast output discharge in shutdown mode.

Technical Context

The TLV70736PDQNR implements a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR across 100 Hz–1 MHz. Its enable logic requires only 0.9 V to activate, supporting direct interfacing with low-voltage GPIOs.

Unlike standard TLV707 variants, the 'P' suffix denotes integrated active pulldown circuitry (120-Ω resistor) that discharges the output during shutdown - critical for systems requiring rapid rail collapse and sequencing control.

Key Specifications

Pinout & Package

TLV70736PDQNR uses the DQN (X2SON) 4-pin package: 1.00 mm × 1.00 mm footprint with bottom thermal pad. This ultra-compact package supports high-density portable PCB layouts and efficient heat dissipation via PCB copper.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F3BHTSA1 and AP7361D-36SG-7, TLV70736PDQNR uniquely balances ultra-low 25-µA quiescent current, 120-Ω active pulldown, and 0.1-µF stability in a 1-mm² package - making it optimal for space- and battery-constrained portable designs requiring precise sequencing and noise control.

Availability

TLV70736PDQNR is available at Aetrix Electronics and suitable for wearable electronics, wireless handsets, and gaming peripherals requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TLV70736PDQNR 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 power management technologies with over 90 years of innovation in high-reliability electronic components.

The TLV707 series was engineered specifically for portable, battery-powered applications demanding ultra-low quiescent current, fast transient response, and minimal board space - targeting smartphones, wearables, and wireless edge devices.

FAQ

What is the dropout voltage of TLV70736PDQNR at 150 mA load?

The dropout voltage of TLV70736PDQNR is 220 mV (typical) at 150 mA output current and 3.6-V nominal output. This value is confirmed in the Electrical Characteristics table under "Dropout voltage" for V_OUT > 2.8 V, ensuring reliable regulation even when input drops to 3.82 V - critical for single-cell Li-ion operation near end-of-discharge.

Does TLV70736PDQNR include an enable pin and what are its logic thresholds?

Yes, TLV70736PDQNR includes an active-high enable (EN) pin. It turns on when voltage exceeds 0.9 V (VIH) and enters shutdown when pulled below 0.4 V (VIL). This low-threshold enable allows direct connection to modern low-voltage GPIOs (e.g., 1.8-V or 2.5-V logic families) without level-shifting circuitry.

How does the pulldown feature of TLV70736PDQNR function during shutdown?

During shutdown (EN < 0.4 V), TLV70736PDQNR activates an internal 120-Ω pulldown resistor between OUT and GND. This discharges the output capacitor rapidly - for example, a 1-µF load decays from 3.6 V to <100 mV in approximately 1 ms - enabling deterministic power-rail collapse for system-level sequencing and reset integrity.

What is the minimum output capacitance required for TLV70736PDQNR stability?

TLV70736PDQNR is stable with a minimum effective output capacitance of 0.1 µF - verified across temperature and bias conditions. This allows use of small-footprint ceramic capacitors (e.g., 0402 X5R/X7R) and reduces total solution size versus legacy LDOs requiring ≥1 µF, without compromising phase margin or transient response.

Is TLV70736PDQNR protected against overtemperature and overcurrent conditions?

Yes, TLV70736PDQNR integrates both thermal shutdown and overcurrent protection. It limits output current to 240–450 mA (depending on V_OUT) and disables regulation if junction temperature exceeds ~150°C. After cooling, the device automatically recovers - providing robust fault tolerance in portable devices exposed to variable ambient conditions.