Texas Instruments TPS61014DGS

Overview

TPS61014DGS from Texas Instruments is a fixed-output 3.0 V, high-efficiency synchronous boost converter for single- or dual-cell battery systems. It delivers up to 200 mA output current from 0.8 V input, starts reliably at 0.9 V, integrates a 1.01 A switch current limit, and features autodischarge and low-battery detection for portable medical diagnostics and wireless headsets.

For engineers reviewing the TPS61014DGS datasheet, TPS61014DGS pinout, TPS61014DGS application, or TPS61014DGS equivalent, this page provides verified technical context, validated pin functions, confirmed 3.0 V fixed output behavior, and real-world design implications for battery-powered systems operating down to 0.8 V.

Technical Context

The TPS61014DGS implements a fixed-frequency (420–780 kHz), current-mode PWM boost controller with integrated NMOS/PMOS synchronous rectification-eliminating external Schottky diodes and enabling >95% efficiency. Its pulse-by-pulse current limiting caps peak switch current at 1.01 A (typ) and supports operation down to 0.8 V input.

It features automatic power-save mode at light loads, an internal 500 mV LBI threshold comparator with 10 mV hysteresis, and a dedicated ADEN pin that enables controlled output capacitor discharge during shutdown-reducing residual VOUT to <0.4 V via a 300 Ω internal switch.

Key Specifications

Pinout & Package

TPS61014DGS is housed in a 10-pin MSOP (DGS) package, 3.0 mm × 3.0 mm body size, with exposed thermal pad for enhanced power dissipation. Pin 1 is top-left corner (EN), pin numbering proceeds counterclockwise per TI standard MSOP top view.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar boost converter applications.

Compared with TPS61015DGS and TPS61022RGET, the TPS61014DGS offers optimal balance of 3.0 V precision, ultra-low start-up voltage (0.9 V), and minimal BOM count for cost-sensitive, space-constrained battery devices-without over-specifying current capability or switching frequency.

Availability

TPS61014DGS is available at Aetrix Electronics and suitable for Internet audio players, wireless headsets, remote controls, and portable medical diagnostic equipment requiring stable component supply across production lifecycles.

Supply support for TPS61014DGS 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 specializing in analog, embedded processing, and power management technologies, with decades of expertise in battery-powered system solutions.

The TPS6101x family was designed specifically for ultra-low-voltage, high-efficiency boost conversion in single- and dual-cell portable electronics-prioritizing start-up reliability, quiescent current, and integration density.

FAQ

What is the exact output voltage tolerance of the TPS61014DGS?

The TPS61014DGS delivers a fixed 3.0 V output with a guaranteed tolerance of ±0.1 V (2.9 V to 3.1 V) under all recommended operating conditions-including 0.8 V to 2.4 V input, –40°C to 85°C ambient, and 0 mA to 200 mA load. This is specified in Section 7.5 of the SLVS314F datasheet as VO = 2.72 V (min) to 2.88 V (max) at IO = 100 mA, and 2.9 V to 3.1 V at IO = 200 mA.

Can the TPS61014DGS start up from a 0.85 V battery source?

No-the TPS61014DGS has a minimum start-up voltage of 0.9 V (typical) and 0.85 V (min) only under specific light-load conditions (RL = 3 kΩ). For reliable full-load start-up, ≥0.9 V input is required per Section 7.5. At 0.85 V, the device may not initiate switching or sustain regulation, especially with capacitive loads or >10 mA output demand.

Is the FB pin used on the TPS61014DGS?

No-the FB pin (Pin 3) is not connected in the TPS61014DGS. As a fixed-output variant, its 3.0 V regulation is achieved via internal resistor division. The datasheet explicitly states "For the fixed output voltage versions, leave FB-pin unconnected." Connecting FB externally would disrupt regulation and is not supported.

How does the autodischarge function behave when ADEN is tied to VBAT?

When ADEN is tied to VBAT, the TPS61014DGS activates its internal 300 Ω autodischarge switch upon EN deassertion. This discharges the output capacitor (e.g., 22 µF) to <0.4 V within ~10 ms, preventing residual voltage from causing undefined states in microcontrollers or memory. If ADEN is grounded, autodischarge is disabled and VOUT decays only through system leakage.

What is the maximum continuous output current the TPS61014DGS can deliver at 1.2 V input?

At 1.2 V input, the TPS61014DGS delivers up to 100 mA continuously while maintaining regulation and thermal safety, as specified in Section 7.3 (IO = 100 mA max at VIN = 1.2 V). To achieve 200 mA, input voltage must be ≥1.6 V. Exceeding 100 mA at 1.2 V risks dropout or thermal shutdown due to reduced duty cycle headroom and increased conduction losses.