Texas Instruments TLV70732DQNT

Overview

TLV70732DQNT from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise LDO regulator with 3.2-V fixed output voltage, 0.5% DC accuracy, and 70 dB PSRR at 100 Hz - designed for power-sensitive portable electronics requiring stable low-voltage biasing under light-load or no-load conditions.

For engineers reviewing the TLV70732DQNT datasheet, TLV70732DQNT pinout, TLV70732DQNT application, or TLV70732DQNT equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV), thermal shutdown/overcurrent protection, stability with ≥0.1-µF ceramic output capacitance, and enable-pin logic thresholds (VIH = 0.9 V, VIL = 0.4 V).

Technical Context

The TLV70732DQNT employs a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse-voltage blocking via its integrated body diode. Its bandgap reference and error amplifier deliver 0.5% output accuracy across –40°C to +125°C junction temperature and 0–200 mA load range, including zero-load regulation.

It features active-high enable with hysteresis-free threshold control (0.4 V disable / 0.9 V enable), internal current limiting (240–450 mA), and thermal shutdown. The TLV707P variant adds an active pulldown circuit (120 Ω), but TLV70732DQNT is part of the standard TLV707 series without pulldown.

Key Specifications

Pinout & Package

TLV70732DQNT is housed in a 1.0 mm × 1.0 mm DQN (X2SON-4) package with wettable flank leads for automated optical inspection. Thermal pad on underside enhances PCB heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F33TJ and MCP1700T-3302E/MB, TLV70732DQNT offers optimal balance of ultra-low IQ (25 µA), compact X2SON packaging, and enable functionality for portable electronics - while TLS850F33TJ adds automotive robustness and MCP1700T-3302E/MB prioritizes minimal quiescent draw at the expense of controllability.

Availability

TLV70732DQNT is available at Aetrix Electronics and suitable for wearable electronics, Bluetooth peripherals, smartphone camera modules, and industrial handheld scanners requiring stable component supply with consistent parametric performance and long-term manufacturability.

Supply support for TLV70732DQNT 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 engineered specifically for portable, battery-powered devices demanding high PSRR, low noise, and minimal quiescent current - targeting RF front-ends, sensor interfaces, and microcontroller I/O rails where efficiency and signal integrity are critical.

FAQ

What is the output voltage tolerance of TLV70732DQNT over temperature and load?

The TLV70732DQNT maintains ±0.5% DC output accuracy across –40°C to +125°C junction temperature and 0–200 mA load range, including no-load conditions. This is verified per TI's Electrical Characteristics table (Section 6.5), where min/max limits are specified as –1.5% to +1.5% for VOUT ≥ 0.85 V, with typical performance at ±0.5%.

Does TLV70732DQNT require an external pull-up resistor on the EN pin?

No, TLV70732DQNT does not require an external pull-up on EN. Its enable input has CMOS-compatible thresholds (VIH = 0.9 V, VIL = 0.4 V) and draws only 0.01 µA typical current. It can be driven directly from a microcontroller GPIO or tied to IN for always-on operation - no external biasing is needed.

Can TLV70732DQNT operate with a 2.5-V input voltage?

No - TLV70732DQNT requires a minimum input voltage of 2.0 V, but for reliable 3.2-V regulation at full load, VIN must exceed VOUT + dropout. At 150 mA, dropout is 220–270 mV, so 2.5 V input yields insufficient headroom (2.5 V − 3.2 V = –0.7 V). Minimum recommended VIN is 3.42 V to ensure regulation across temperature and load.

Is TLV70732DQNT stable with a 0.22-µF X5R ceramic capacitor?

Yes - TLV70732DQNT is explicitly characterized for stability with ≥0.1 µF effective output capacitance. A 0.22-µF X5R capacitor (rated value) easily exceeds this requirement, even after voltage and temperature derating, and provides improved transient response versus the minimum 0.1-µF solution.

How does TLV70732DQNT handle reverse voltage at the OUT pin?

TLV70732DQNT contains a PMOS pass transistor with an intrinsic body diode that conducts when VOUT > VIN. This diode is not current-limited; sustained reverse conduction may cause overheating. For applications with potential reverse bias (e.g., hot-swap, backup supplies), TI recommends external current limiting to ≤5% of rated output current (≤10 mA).