Texas Instruments TLV70029DSET

Overview

TLV70029DSET from Texas Instruments is a 200-mA, low-quiescent-current, low-dropout linear regulator with fixed 2.9-V output, PMOS pass element, ±2% DC accuracy over –40°C to +125°C, 43 mV dropout at 50 mA, and 31 μA ground current at no load - used for powering RF sections and core logic in battery-powered handheld devices.

For engineers reviewing the TLV70029DSET datasheet, TLV70029DSET pinout, TLV70029DSET application, or TLV70029DSET equivalent, key selection considerations include dropout performance under 100-mA load, PSRR >68 dB at 1 kHz, stability with ≥0.1-μF ceramic output capacitance, and thermal shutdown activation at ~160°C junction temperature.

Technical Context

The TLV70029DSET employs a PMOS pass transistor architecture enabling ultra-low dropout voltage scaling with load current and maintaining regulation down to (VIN – VOUT) = 43 mV at 50 mA. Its precision bandgap reference and error amplifier deliver ±2% output accuracy across full temperature and line/load ranges.

Functional modes include normal regulation, dropout operation (where VOUT = VIN – VDO), current limiting (ICL = 220–860 mA), and thermal shutdown (trip at ~160°C, reset at ~140°C). The active-high EN pin supports 0.9 V enable threshold and reduces ground current to 1 μA in shutdown.

Key Specifications

Pinout & Package

TLV70029DSET is packaged in a 1.5-mm × 1.5-mm WSON-6 (DSE) package with wettable flanks, rated for 321.3°C/W junction-to-ambient thermal resistance and optimized for space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC70029DSET and TPS7A0529PDQNR, TLV70029DSET uniquely balances ultra-low IQ (31 μA), high PSRR (68 dB), integrated thermal shutdown, and compact WSON-6 packaging - making it optimal for next-generation portable RF and embedded systems where size, efficiency, and reliability are co-constrained.

Availability

TLV70029DSET is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth® audio modules, ZigBee® sensor nodes, and Li-ion–powered industrial data loggers requiring stable component supply with guaranteed long-term sourcing.

Supply support for TLV70029DSET 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 company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with broad industrial, automotive, and consumer design expertise.

The TLV70029DSET belongs to TI's TLV700 family of low-IQ LDOs designed specifically for portable battery-powered equipment - emphasizing minimal dropout, high PSRR, and robust protection features for handheld and wearable electronics.

FAQ

What is the maximum input voltage rating for TLV70029DSET?

The TLV70029DSET has an absolute maximum input voltage (VIN) rating of 6 V. Operation beyond this value risks permanent damage. For reliable continuous operation, TI specifies a recommended input range of 2.0 V to 5.5 V - ensuring compatibility with single-cell Li-ion (3.0–4.2 V) and boosted 3.3-V rail systems. Exceeding 5.5 V violates recommended conditions even if below 6 V absolute max.

Does TLV70029DSET require an input capacitor for stability?

No, the TLV70029DSET does not require an input capacitor for stability, but TI strongly recommends a 0.1–1 μF low-ESR ceramic capacitor between IN and GND. This improves transient response, reduces input ripple coupling, and mitigates voltage excursions caused by source impedance or fast load changes - especially critical when the device is remote from its power source or driving high-dV/dt loads.

Can TLV70029DSET operate with a 0.1-μF output capacitor?

Yes, TLV70029DSET is explicitly designed to be stable with an effective output capacitance of ≥0.1 μF - meaning the actual capacitance under operating bias voltage and temperature must meet or exceed 0.1 μF. A 0.1-μF rated capacitor may fall below this threshold due to dielectric derating; X5R/X7R ceramics are preferred to ensure effective capacitance remains sufficient across voltage and temperature ranges.

What is the thermal shutdown behavior of TLV70029DSET?

The TLV70029DSET activates thermal shutdown at approximately 160°C junction temperature and resets at ~140°C. During sustained overload, it cycles between shutdown and regulation - limiting average power dissipation and preventing permanent damage. For reliable operation, design must keep steady-state TJ ≤125°C using layout techniques (e.g., thermal vias, copper pour) and ambient derating per the 321.3°C/W RθJA spec for the DSE package.

Is TLV70029DSET pin-compatible with other TLV700 variants?

Yes, all TLV700xxDSET (WSON-6) variants share identical pinout: IN (1), GND (2), OUT (3), NC (4), NC (5), EN (6). This allows direct substitution across output voltages (1.2 V to 4.8 V) without PCB redesign - provided input/output capacitors and load requirements remain within the new variant's specifications. Pin compatibility does not extend to SC70 or SOT-5 packages in the same family.