Texas Instruments TPS72710DSER

Overview

TPS72710DSER from Texas Instruments is a 1.0-V fixed-output, 250-mA ultralow-quiescent-current LDO linear regulator in a 1.5-mm × 1.5-mm WSON-6 package. It delivers 2% output accuracy over load, line, and temperature (–40°C to +125°C), achieves 65 mV typical dropout at 100 mA, and supports fast load transient response (±50 mV for 200 mA step) in RF-sensitive portable power rails.

For engineers reviewing the TPS72710DSER datasheet, TPS72710DSER pinout, TPS72710DSER application, or TPS72710DSER equivalent, key selection criteria include its 7.9 μA quiescent current, 1.0-μF ceramic capacitor stability, 70 dB PSRR at 1 kHz, and thermal shutdown/overcurrent protection - all critical for battery-powered wireless handsets and Bluetooth® modules requiring minimal standby power and clean low-noise supply.

Technical Context

The TPS72710DSER uses a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR even at minimal VIN–VOUT headroom (e.g., 65 mV at 100 mA). Its factory-programmed EEPROM sets the precise 1.0-V output without external resistors.

It integrates active enable control (EN pin with 0.9 V turn-on threshold), undervoltage lockout (1.90 V nominal), soft-start (0.07 V/μs ramp rate), and thermal shutdown (+160°C trip, +140°C reset), operating fully specified across –40°C to +125°C junction temperature.

Key Specifications

Pinout & Package

TPS72710DSER is housed in a thermally enhanced 1.5-mm × 1.5-mm WSON-6 (DSE) package with exposed thermal pad (not electrically connected). Pin 1 is OUT; pin 3 is GND; pin 4 is EN; pin 6 is IN. NC pins (2 and 5) may be tied to GND for improved thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS72710YFFR, the TPS72710DSER offers superior thermal management in higher-power use cases due to its larger WSON thermal pad, while the MCP1801T-1002E/OT trades off protection features and output current for ultra-low standby consumption - making each optimal only within distinct power/size/safety boundaries.

Availability

TPS72710DSER is available at Aetrix Electronics and suitable for wireless handsets, Bluetooth® modules, and remote controls requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TPS72710DSER 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 leader delivering analog and embedded processing solutions, with over 90 years of innovation in power management ICs.

The TPS727 family was designed specifically for ultralow-power, RF-sensitive portable electronics - emphasizing sub-10 μA quiescent current, fast transient response, and factory-programmed precision outputs in wafer-level and SON packages.

FAQ

What is the maximum input voltage rating for the TPS72710DSER?

The TPS72710DSER has an absolute maximum input voltage rating of +6.0 V. However, its recommended operating input voltage range is 2.0 V to 5.5 V. Exceeding 6.0 V risks permanent damage per the Absolute Maximum Ratings table. For reliable operation at full 250 mA output, maintain VIN ≥ VOUT + dropout (≥1.065 V) and within the 2.0–5.5 V window - the TPS72710DSER is not rated for automotive 12 V or industrial 24 V direct input.

Does the TPS72710DSER require an input capacitor for stability?

The TPS72710DSER does not require an input capacitor for basic stability, but TI strongly recommends a 0.1-μF to 1.0-μF ceramic capacitor between IN and GND. This capacitor improves transient response, reduces input ripple coupling, and mitigates noise from upstream sources like switching regulators. Without it, the TPS72710DSER remains functional but exhibits degraded PSRR and increased susceptibility to line transients - especially critical in RF applications where clean input is essential for the TPS72710DSER's 70 dB PSRR performance.

How does the enable (EN) pin function on the TPS72710DSER?

The EN pin on the TPS72710DSER is an active-high digital control input. Driving EN to ≥0.9 V (typical) enables regulation and powers the output; driving EN to ≤0.4 V (typical) places the TPS72710DSER into shutdown mode, reducing ground current to 120 nA. The EN pin accepts standard TTL/CMOS logic levels and draws only 40–500 nA. If shutdown is unused, EN may be tied directly to IN - a valid configuration that ensures the TPS72710DSER remains always-on without external pull-up.

What thermal protection behavior does the TPS72710DSER exhibit under overload?

The TPS72710DSER activates thermal shutdown at approximately +160°C junction temperature, disabling the output until the die cools to ~+140°C, at which point regulation resumes. Under sustained overload, this causes auto-cycling - repeated on/off toggling - which limits average power dissipation but degrades reliability if continuous. The TPS72710DSER's R_θJA of 190.5°C/W means 150 mW of dissipation raises junction temperature by ~28.6°C above ambient; proper PCB copper pour under the thermal pad is essential to keep T_J ≤125°C in production use.

Can the TPS72710DSER be used with a 1.0-μF output capacitor, and what type is recommended?

Yes, the TPS72710DSER is explicitly designed to be stable with a 1.0-μF ceramic output capacitor - a key differentiator versus older LDOs requiring larger or specialized capacitors. TI specifies X5R or X7R dielectric types due to their low ESR (<200 mΩ) and minimal capacitance shift over temperature and DC bias. Using a 1.0-μF X7R capacitor ensures the TPS72710DSER meets its ±50 mV load transient spec and 70 dB PSRR target; NP0/C0G is acceptable but offers no advantage and costs more.