Texas Instruments TLV70325DBVR

Overview

TLV70325DBVR from Texas Instruments is a 2.5 V fixed-output, 300-mA low-dropout (LDO) linear regulator in SOT-23-5 package, featuring 2% output accuracy, 35 µA quiescent current, and 260 mV dropout at 300 mA - optimized for Li-ion battery-powered handheld devices requiring stable low-noise supply under light-to-moderate load.

For engineers reviewing the TLV70325DBVR datasheet, TLV70325DBVR pinout, TLV70325DBVR application, or TLV70325DBVR equivalent, key selection considerations include its 0.1 µF minimum stable output capacitance, active-high enable with 0.9 V threshold, thermal shutdown at 165°C, and PSRR of 68 dB at 1 kHz - critical for RF-sensitive portable systems.

Technical Context

The TLV70325DBVR employs a PMOS pass transistor to achieve low dropout and high PSRR, with internal band-gap reference and error amplifier ensuring ±2% DC accuracy across –40°C to +125°C. Its enable logic supports system-level power sequencing, and UVLO prevents regulation until VIN exceeds 1.9 V.

Stability is guaranteed with ≥0.1 µF effective output capacitance (X5R/X7R ceramic), and ground current remains at 35 µA (typ) at no load while rising to 370 µA at 300 mA - enabling ultra-low-power standby modes without external biasing.

Key Specifications

Pinout & Package

SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected - suitable for standard reflow assembly and compact portable PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70325DBVR, TLV70225DBVR trades 100 mA output capacity for 15 µA lower IQ, while MCP1700T-2502E/MB sacrifices enable functionality, protection features, and dropout performance to achieve ultra-low static current - making TLV70325DBVR the balanced choice for robust, sequenced, battery-fed systems.

Availability

TLV70325DBVR is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth® devices, and Li-ion battery-operated handheld products requiring stable component supply, long-term lifecycle support, and full traceability.

Supply support for TLV70325DBVR 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 designing analog ICs, embedded processors, and system solutions for industrial, automotive, and personal electronics markets.

The TLV703 series is engineered specifically for power-sensitive portable applications - delivering low IQ, high PSRR, and minimal external component count in ultra-small packages for battery longevity and board-space efficiency.

FAQ

What is the minimum input voltage required for TLV70325DBVR to regulate at full 300 mA output?

The TLV70325DBVR requires VIN ≥ VOUT + VDO = 2.5 V + 0.26 V = 2.76 V to maintain regulation at 300 mA. Below this, it enters dropout mode where output drops linearly with input. The absolute minimum operating VIN is 2.0 V per specifications, but regulation is not guaranteed below 2.76 V at full load. Designers should verify margin using worst-case VDO (375 mV max) and temperature derating.

Can TLV70325DBVR operate without an input capacitor?

While the TLV70325DBVR does not require an input capacitor for stability, TI recommends a 0.1–1 µF low-ESR ceramic capacitor between IN and GND. This improves transient response, reduces input ripple coupling, and prevents instability when source impedance exceeds 2 Ω - especially critical in battery-fed systems with long PCB traces or shared power rails.

Does TLV70325DBVR support reverse-voltage protection?

No. The TLV70325DBVR contains a PMOS pass transistor with an intrinsic body diode from OUT to IN. If VOUT exceeds VIN, uncontrolled reverse current flows through this diode. For reverse-voltage scenarios, an external Schottky diode in series with IN or a dedicated reverse-protection IC is required - TI does not specify reverse-current limiting for TLV70325DBVR.

What is the thermal shutdown behavior of TLV70325DBVR during sustained overload?

When junction temperature reaches ~165°C, TLV70325DBVR disables output and enters thermal shutdown. It automatically recovers when temperature falls to ~145°C. Under continuous overload, this causes cycling - which degrades reliability. For sustained 300 mA operation, ensure θ_JA ≤ 125°C/W (max) via adequate copper pour and avoid stacking heat-generating components nearby.

Is TLV70325DBVR compatible with ceramic capacitors having high DC bias derating?

Yes - TLV70325DBVR is stable with ≥0.1 µF effective output capacitance under operating bias and temperature. Designers must verify that the chosen 0402/0603 X5R/X7R capacitor retains ≥0.1 µF at 2.5 V DC bias and maximum operating temperature (125°C), as many ceramics lose >50% capacitance under bias. Derating curves from the capacitor manufacturer must be consulted.