Texas Instruments TLV70732DQNR

Overview

TLV70732DQNR from Texas Instruments is a 200-mA, low-quiescent-current (25 μA), low-noise LDO regulator with 3.2-V fixed output voltage in a 1-mm × 1-mm X2SON (DQN) package. It delivers 0.5% DC accuracy, 70 dB PSRR at 100 Hz, and stable operation with only 0.1-μF output capacitance - ideal for powering RF-sensitive subsystems in space-constrained portable electronics.

For engineers reviewing the TLV70732DQNR datasheet, TLV70732DQNR pinout, TLV70732DQNR application, or TLV70732DQNR equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV), shutdown current (1 μA), EN pin logic thresholds (0.4 V / 0.9 V), thermal shutdown protection, and compatibility with ceramic capacitors down to 0.1 μF.

Technical Context

The TLV70732DQNR uses a PMOS pass transistor architecture enabling ultra-low dropout and reverse-voltage tolerance via an internal body diode. Its bandgap reference and error amplifier deliver tight regulation across –40°C to +125°C junction temperature while maintaining sub-20-μV_RMS noise (100 Hz–100 kHz) and high PSRR up to 1 MHz.

It operates in two functional modes: active regulation (EN ≥ 0.9 V) and low-power shutdown (EN ≤ 0.4 V), where ground current drops to 1 μA and - unlike the TLV707P variant - no internal pulldown resistor is present. The device requires no minimum load and remains stable without output capacitor ESR tuning.

Key Specifications

Pinout & Package

TLV70732DQNR is housed in a 4-pin, 1.0 mm × 1.0 mm X2SON (DQN) package with exposed thermal pad. The compact footprint supports high-density layouts in smartphones, hearables, and medical patches.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F32TJ and MCP1703T-3202E/MB, TLV70732DQNR offers the optimal balance of ultra-low IQ (25 μA), robust protection features (thermal + current limit), and RF-grade noise performance - making it uniquely suited for space- and power-constrained portable electronics where reliability and signal integrity are co-prioritized.

Availability

TLV70732DQNR is available at Aetrix Electronics and suitable for wearable health monitors, smartphone RF subsystems, industrial wireless sensors, and portable diagnostic devices requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV70732DQNR 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, and personal electronics markets.

The TLV707 series was designed specifically for portable, battery-powered applications demanding ultra-low quiescent current, small footprint, and high PSRR - targeting smartphones, wearables, and IoT edge nodes where power efficiency and noise immunity are critical.

FAQ

What is the maximum input voltage rating for TLV70732DQNR?

The absolute maximum input voltage for TLV70732DQNR is 6.0 V. However, the recommended operating range is 2.0 V to 5.5 V. Exceeding 6.0 V risks permanent damage per TI's Absolute Maximum Ratings table. For reliable long-term operation in battery-powered systems, VIN should remain within the 2.0–5.5 V window - especially important when using single-cell Li-ion (nominal 3.7 V, discharged ~3.0 V) or regulated 3.3-V supplies.

Does TLV70732DQNR include an internal pulldown resistor on the OUT pin during shutdown?

No, TLV70732DQNR does not include an internal pulldown resistor. That feature is exclusive to the TLV707P variant (e.g., TLV70732PDQNR), which integrates a 120-Ω active pulldown. TLV70732DQNR enters high-impedance shutdown mode with only 1 μA supply current - meaning external circuitry (e.g., a pull-down resistor or MOSFET switch) is required if rapid output discharge is needed in your design.

Can TLV70732DQNR operate without any load connected to the OUT pin?

Yes, TLV70732DQNR regulates to its specified 3.2-V output accuracy even with zero load current. This zero-load capability is explicitly confirmed in TI's description section and electrical characteristics table, eliminating the need for a minimum load resistor - a key advantage in intermittently active systems like motion-triggered sensors or wake-on-RF applications.

What is the typical dropout voltage of TLV70732DQNR at 150 mA output current?

The typical dropout voltage of TLV70732DQNR at 150 mA output current is 220 mV, with a maximum of 270 mV across –40°C to +125°C. This means the device sustains regulation when VIN ≥ 3.42 V (3.2 V + 0.22 V), enabling reliable operation from partially discharged Li-ion cells (≥3.4 V) or 3.6-V supply rails with margin - critical for uninterrupted function in portable equipment.

Is TLV70732DQNR stable with a 0.1-μF output capacitor, and what dielectric types are supported?

Yes, TLV70732DQNR is fully stable with a minimum 0.1-μF effective output capacitance - verified across temperature and bias conditions. TI recommends X5R or X7R ceramic capacitors due to low ESR and minimal derating, but other dielectrics (e.g., Y5V, Z5U) are acceptable if their effective capacitance under operating voltage and temperature remains ≥0.1 μF. This flexibility reduces cost and board area versus legacy LDOs requiring ≥1-μF capacitors.