Texas Instruments TLV7162818PDPQT

Overview

TLV7162818PDPQT from Texas Instruments is a capacitor-free, dual-channel, 150-mA low-dropout (LDO) voltage regulator in a 1.2-mm × 1.2-mm X2SON-6 (DPQ) package. It delivers fixed 2.8 V on OUT1 and 1.8 V on OUT2, supports input voltages from 1.4 V to 5.5 V, achieves ±1.5% output accuracy over –40°C to 125°C, and features independent enable pins (EN1/EN2) for power sequencing in portable RF systems.

For engineers reviewing the TLV7162818PDPQT datasheet, TLV7162818PDPQT pinout, TLV7162818PDPQT application, or TLV7162818PDPQT equivalent, this page provides verified electrical specifications, thermal performance data, dual-rail startup timing, inrush current control behavior, and real-world layout guidance for battery-powered space-constrained designs.

Technical Context

The TLV7162818PDPQT integrates two independent PMOS-based LDO regulators with foldback current limiting, undervoltage lockout (1.3 V typical), and active pulldown circuitry (120 Ω) on both outputs-enabled only when EN falls below 0.4 V. Each channel operates without mandatory input or output capacitors, yet maintains stability across 0–100 µF C_OUT.

Its architecture enables simultaneous or staggered power-up via separate EN1/EN2 control, delivers 80 dB PSRR at 100 Hz and 46 dB at 10 kHz, and sustains regulated output down to 210 mV dropout (at 3.3 V_OUT, 150 mA). Thermal shutdown activates at 158°C and resets at 140°C.

Key Specifications

Pinout & Package

Package: X2SON-6 (DPQ), 1.2 mm × 1.2 mm, thermally enhanced with exposed pad connected to GND for improved heat dissipation (R_θJA = 149.3°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL7407LPGQ and TPS7A202818PDBVR, TLV7162818PDPQT uniquely combines fixed dual-rail outputs, capacitor-free stability, 1.2-mm² footprint, and active pulldown in a single monolithic IC-enabling smallest possible solution for space- and power-constrained dual-rail systems.

Availability

TLV7162818PDPQT is available at Aetrix Electronics and suitable for wireless handsets, portable medical sensors, smart camera modules, and industrial Bluetooth edge nodes requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TLV7162818PDPQT 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 specializing in analog and embedded processing technologies, with leadership in power management ICs for portable, industrial, and automotive markets.

The TLV716 product line delivers capacitor-free dual LDOs optimized for ultra-small form factor, low-noise, and high-PSRR power delivery in battery-powered RF and mixed-signal applications.

FAQ

What is the function of the EN1 and EN2 pins on the TLV7162818PDPQT?

The EN1 and EN2 pins are independent active-high enable inputs controlling the 2.8 V and 1.8 V regulators respectively. Driving either pin above 0.9 V enables its corresponding output; pulling it below 0.4 V disables that regulator and activates its internal 120 Ω pulldown resistor. This allows precise power sequencing and fast rail discharge-key for reliable boot-up and shutdown in multi-rail systems using TLV7162818PDPQT.

Does the TLV7162818PDPQT require external capacitors to operate stably?

No, the TLV7162818PDPQT is designed to be stable without mandatory input or output capacitors-a core feature enabled by its advanced internal control loop. However, adding a 0.1–1 µF ceramic capacitor on IN improves PSRR and transient response, and up to 100 µF on either OUT enhances dynamic performance. The TLV7162818PDPQT remains fully functional and within spec even with zero external capacitance.

What is the maximum junction temperature and thermal protection behavior of the TLV7162818PDPQT?

The TLV7162818PDPQT triggers thermal shutdown at approximately 158°C and re-enables output when junction temperature cools to ~140°C. Its R_θJA is 149.3°C/W on JEDEC High-K board. For reliable operation, junction temperature must stay ≤125°C-requiring appropriate copper pour and power derating. The device cycles between shutdown and regulation under sustained overload, protecting itself but signaling inadequate thermal design.

How does the TLV7162818PDPQT handle output short-circuit conditions?

Under short-circuit, the TLV7162818PDPQT engages foldback current limiting: output current decreases as V_OUT drops, reducing power dissipation in the PMOS pass element. At V_OUT = 0 V, typical short-circuit current is 40 mA. This behavior delays thermal shutdown entry and minimizes stress during fault events-distinct from constant-current limiters. The TLV7162818PDPQT maintains this protection per channel independently.

Can the TLV7162818PDPQT be used with lithium-ion battery input directly?

Yes-the TLV7162818PDPQT supports 1.4 V to 5.5 V input, fully covering the 3.0–4.2 V operating range of single-cell Li-ion batteries. Its 210 mV dropout at 150 mA allows 2.8 V output regulation even at battery end-of-life (3.0 V_IN). No input capacitor is required, though a 0.1 µF ceramic cap is recommended to suppress battery impedance effects and improve ripple rejection.