Texas Instruments TLV7162828PDPQT

Overview

TLV7162828PDPQT 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 and 2.8 V outputs with ±1.5% accuracy over –40°C to 125°C, supports 1.4 V to 5.5 V input, and features independent enable pins (EN1/EN2) for power sequencing in portable RF systems.

For engineers reviewing the TLV7162828PDPQT datasheet, TLV7162828PDPQT pinout, TLV7162828PDPQT application, or TLV7162828PDPQT equivalent, key selection criteria include dual-output stability without external capacitors, inrush current control during startup, low crosstalk between channels, foldback current limiting, and thermal shutdown at 158°C.

Technical Context

The TLV7162828PDPQT integrates two independent PMOS-based LDO regulators sharing a common input (IN) and ground (GND), each with dedicated enable (EN1/EN2) and output (OUT1/OUT2) terminals. Its internal control loop enables stable operation with or without input/output capacitors, eliminating typical external bulk capacitance requirements.

It implements active pulldown via a 120-Ω resistor on each output during shutdown (TLV716P variant), provides undervoltage lockout at ~1.3 V, and uses foldback current limiting that reduces output current as VOUT collapses - delivering ~40 mA into short-circuit while protecting against sustained overload.

Key Specifications

Pinout & Package

TLV7162828PDPQT is housed in a 1.2-mm × 1.2-mm, 6-pin X2SON (DPQ) package with an exposed thermal pad. The compact footprint and low profile (0.4 mm height) support ultra-thin portable designs and high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC750M2828PDPQR and TPS7A202828DQNR, TLV7162828PDPQT uniquely combines capacitor-free stability, active pulldown, and matched dual 2.8 V outputs in the smallest possible footprint - making it optimal for space-constrained, battery-sensitive, and reset-critical applications.

Availability

TLV7162828PDPQT is available at Aetrix Electronics and suitable for wireless handsets, portable medical sensors, and industrial IoT edge nodes requiring stable component supply, long-term lifecycle assurance, and AEC-Q200-aligned reliability.

Supply support for TLV7162828PDPQT 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.

TLV7162828PDPQT belongs to the TLV716P family of capacitor-free dual LDOs designed specifically for space-constrained, battery-powered RF and sensor applications demanding ultra-small footprints and robust power sequencing.

FAQ

What is the function of the EN1 and EN2 pins on the TLV7162828PDPQT?

The EN1 and EN2 pins are independent active-high enable inputs controlling OUT1 and OUT2 respectively. Driving either pin above 0.9 V activates its corresponding regulator; pulling it below 0.4 V disables the channel and engages the 120-Ω active pulldown on TLV7162828PDPQT. This allows precise power sequencing - for example, enabling a sensor before its signal chain - without external logic.

Does TLV7162828PDPQT require external capacitors for stability?

No, TLV7162828PDPQT is internally compensated and stable with or without input or output capacitors. While optional 0.1–1 µF ceramic capacitors on IN and 0.1–100 µF on each OUT improve PSRR and transient response, they are not required for basic regulation - a key advantage for miniaturized designs where capacitor real estate is constrained.

What is the maximum junction temperature and thermal protection behavior of TLV7162828PDPQT?

TLV7162828PDPQT triggers thermal shutdown at approximately 158°C and re-enables at ~140°C. This hysteresis prevents oscillation during overload. The device's RθJA is 149.3°C/W on JEDEC High-K board; continuous operation above 125°C junction temperature degrades reliability, so proper copper pour and thermal pad connection are essential for sustained 150-mA loads.

How does the foldback current limit operate in TLV7162828PDPQT?

Under overload, TLV7162828PDPQT reduces output current as VOUT drops - delivering ~40 mA into a short circuit instead of sustaining full 150 mA. This foldback behavior lowers power dissipation in the PMOS pass element, delaying thermal shutdown and allowing safe recovery once the fault clears. It is distinct from constant-current limiting and prevents destructive latch-up.

Is TLV7162828PDPQT compatible with lithium-ion battery input directly?

Yes, TLV7162828PDPQT supports 1.4 V to 5.5 V input, covering the full discharge curve of a single-cell Li-ion battery (4.2 V down to ~2.8 V). Its low dropout (as low as 0.21 V at 150 mA) ensures regulation remains active until battery voltage falls within ~300 mV of the 2.8 V output - maximizing usable battery capacity in portable systems.