Texas Instruments TLV707285PDQNR

Overview

TLV707285PDQNR from Texas Instruments is a 200-mA, low-noise, low-quiescent-current (25 µA) LDO regulator with fixed 2.85 V output, designed for power-sensitive portable electronics. It delivers ±0.5% DC accuracy, supports 0.1 µF minimum output capacitance, and provides 70 dB PSRR at 100 Hz - enabling stable rail generation in RF sections of smartphones and wearables.

For engineers reviewing the TLV707285PDQNR datasheet, TLV707285PDQNR pinout, TLV707285PDQNR application, or TLV707285PDQNR equivalent, key selection criteria include dropout voltage at 150 mA (250 mV typical), active pulldown resistance (120 Ω), shutdown current (1 µA), thermal shutdown behavior, and compatibility with space-constrained 1-mm × 1-mm X2SON packaging.

Technical Context

The TLV707285PDQNR implements a PMOS pass transistor architecture with integrated bandgap reference, enabling ultra-low dropout and high PSRR across 100 Hz–1 MHz. Its enable logic requires only 0.9 V to activate and 0.4 V to disable, supporting direct interfacing with low-voltage GPIOs.

Unlike standard TLV707 variants, the "P" suffix denotes an active pulldown circuit that discharges the output via a 120-Ω internal resistor during shutdown - critical for preventing floating rails in multi-rail systems and ensuring clean power sequencing in handheld devices.

Key Specifications

Pinout & Package

TLV707285PDQNR uses the DQN (X2SON, 4-pin) package: 1.00 mm × 1.00 mm footprint with bottom thermal pad. This ultra-compact, leadless package supports high-density layouts and efficient heat transfer to PCB copper.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL7407LPGQDQNR and MCP1703T-28502E/MB, TLV707285PDQNR uniquely combines ultra-low IQ (25 µA), active pulldown (120 Ω), and 1-mm × 1-mm footprint - making it optimal for space- and power-constrained portable systems requiring clean, sequenced 2.85 V rails.

Availability

TLV707285PDQNR is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor nodes, wireless gaming peripherals, and PC add-in card (WLAN) designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for TLV707285PDQNR 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 and precision analog solutions.

The TLV707 series belongs to TI's ultra-low-IQ LDO portfolio, engineered specifically for battery-powered portable devices demanding high PSRR, minimal dropout, and robust thermal protection in sub-1-mm² packages.

FAQ

What is the dropout voltage of TLV707285PDQNR at 150 mA load?

The dropout voltage of TLV707285PDQNR is 250 mV typical at 150 mA output current and 2.85 V nominal output. This value is specified for V_IN = 0.98 × V_OUT(nom), enabling operation down to 3.1 V input while maintaining regulation - critical for extending battery runtime in single-cell Li-ion systems.

Does TLV707285PDQNR include an enable pin, and what are its logic thresholds?

Yes, TLV707285PDQNR includes an active-high enable (EN) pin with VIH(EN) = 0.9 V (min) and VIL(EN) = 0.4 V (max). This low-threshold enable allows direct connection to modern low-voltage GPIOs (e.g., 1.8 V or lower I/O domains) without level-shifting, simplifying host interface design in portable SoC platforms.

How does the pulldown feature of TLV707285PDQNR function during shutdown?

During shutdown (EN ≤ 0.4 V), TLV707285PDQNR activates an internal 120-Ω pulldown resistor between OUT and GND. This discharges output capacitance with a time constant dependent on C_OUT and load resistance, ensuring rapid rail collapse - essential for preventing back-powering, false wake-ups, or latch-up in multi-rail portable systems.

What is the minimum output capacitance required for TLV707285PDQNR stability?

TLV707285PDQNR is stable with a minimum effective output capacitance of 0.1 µF ceramic. This specification accounts for voltage and temperature derating - meaning the capacitor's actual capacitance under bias and operating temperature must remain ≥0.1 µF. X5R/X7R dielectrics in 0201 or 0402 packages are commonly used to meet this requirement.

Is TLV707285PDQNR suitable for RF-sensitive applications like WLAN or Bluetooth modules?

Yes, TLV707285PDQNR is well-suited for RF-sensitive applications: its 45 µV_RMS output noise (100 Hz–100 kHz) and 70 dB PSRR at 100 Hz suppress supply-induced phase noise and spurs. Combined with 2.85 V output matching common RF IC VDD requirements, it serves as a clean, compact local regulator for WLAN/BLE front-ends.