Texas Instruments TLV70225DSER

Overview

TLV70225DSER from Texas Instruments is a 2.5-V fixed-output, 300-mA low-dropout (LDO) linear regulator in a 6-pin WSON package. It delivers 2% output accuracy, 35-μA quiescent current, and 260-mV dropout at 300 mA, enabling efficient power conversion in space-constrained battery-powered systems such as Bluetooth headsets and ZigBee sensor nodes.

For engineers reviewing the TLV70225DSER datasheet, TLV70225DSER pinout, TLV70225DSER application, or TLV70225DSER 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 compatibility with ceramic capacitors for low-noise RF supply rails.

Technical Context

The TLV70225DSER uses a PMOS pass transistor to achieve low dropout and high PSRR (68 dB at 1 kHz), with internal bandgap reference and error amplifier ensuring ±2% DC accuracy across –40°C to +125°C. Its enable logic supports system-level power sequencing, and undervoltage lockout prevents regulation until VIN exceeds 1.9 V.

It operates in three functional modes-normal, dropout, and current limit-determined by VIN, IOUT, and VDO relationships. In dropout mode (VIN < VOUT + VDO), regulation degrades as the PMOS enters triode region, directly impacting transient response and PSRR performance.

Key Specifications

Pinout & Package

TLV70225DSER is housed in a 1.5-mm × 1.5-mm, 6-pin WSON (DSE) package with wettable flanks, optimized for automated optical inspection and thermal performance (R_θJA = 321.3°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F0TESK and MCP1700T-2502E/TT, TLV70225DSER uniquely balances 300-mA capability, 35-μA IQ, enable control, thermal protection, and 1.5-mm WSON packaging-making it optimal for consumer wireless and compact industrial edge devices where integration, safety, and size are co-prioritized.

Availability

TLV70225DSER is available at Aetrix Electronics and suitable for wireless handsets, ZigBee networks, and Li-ion battery–operated handheld products requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TLV70225DSER 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 TLV702 series was designed specifically for power-sensitive, battery-operated handheld equipment-emphasizing low IQ, small footprint, and robust transient performance in RF and sensor applications.

FAQ

What is the minimum input voltage required for TLV70225DSER to regulate 2.5 V at 300 mA?

The TLV70225DSER 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 tracks input minus dropout voltage. The device specifies UVLO activation at 1.9 V, but regulation only begins once VIN exceeds the dropout threshold under load.

Does TLV70225DSER include an active output pulldown circuit?

No, TLV70225DSER does not include an active pulldown circuit. That feature is exclusive to the TLV702P variant (e.g., TLV70225PDSER), which integrates a 120-Ω internal discharge path. TLV70225DSER relies on external circuitry or load leakage for output discharge during shutdown.

Can TLV70225DSER operate stably with a 0.1-μF X5R ceramic capacitor?

Yes-TLV70225DSER is explicitly characterized for stability with ≥0.1 μF effective output capacitance. An X5R 0.1-μF capacitor is acceptable if its effective value (accounting for DC bias and temperature derating) remains ≥0.1 μF at operating voltage and temperature; TI recommends verifying derating curves for the specific part.

What is the thermal shutdown behavior of TLV70225DSER?

TLV70225DSER triggers thermal shutdown at approximately 165°C junction temperature and resets at ~145°C. During sustained overload, it cycles between shutdown and regulation. This protects against permanent damage but indicates inadequate heatsinking or excessive power dissipation-designers must limit TJ to ≤125°C for reliable operation.

Is TLV70225DSER pin-compatible with other TLV702xx variants in the WSON-6 package?

Yes-TLV70225DSER shares identical pin configuration (IN, GND, OUT, NC, NC, EN) and footprint with all TLV702xx DSE-package variants (e.g., TLV70212DSER, TLV70233DSER). Output voltage is set internally; no external resistors are needed, enabling drop-in replacement across fixed-output versions.