Texas Instruments TPS61299EVM-103

Overview

TPS61299EVM-103 from Texas Instruments is an evaluation module designed to demonstrate and validate the TPS61299 synchronous boost converter IC in its DSBGA6 (WCSP) package. It supports input voltages from 0.7 V to 5.5 V, delivers up to 0.8 A output current at 3.6-V input, and provides adjustable 1.8–5.5 V output via resistor-selectable feedback network. The EVM enables rapid prototyping of ultra-low-quiescent-current boost applications in space-constrained portable electronics.

For engineers reviewing the TPS61299EVM-103 datasheet, TPS61299EVM-103 setup, TPS61299EVM-103 schematic, or TPS61299EVM-103 BOM, this module serves as a validated hardware reference for evaluating TPS61299 performance under real-world load, layout, and thermal conditions - especially where input supply headroom is limited and efficiency at light loads is critical.

Technical Context

The TPS61299EVM-103 implements the full functional interface of the TPS61299YBG IC, including EN control via JP2, AVIN configuration via JP3, and precise output voltage selection (1.8–5.5 V) using 21 discrete resistor values on J5. Its two-layer PCB features top-side component placement and a solid bottom-layer ground plane for stable switching operation.

Input stabilization uses a 150-µF tantalum capacitor (C3) for long-cable scenarios, while standard operation relies on ceramic input/output capacitors (2.2 µF to 22 µF). The 1-µH power inductor (L1) and integrated SW/VOUT pin routing reflect the IC's optimized high-frequency (2.5 MHz typical) boost architecture with ultra-low quiescent current (200 nA shutdown, 400 nA operating).

Key Specifications

Availability

TPS61299EVM-103 is available at Aetrix Electronics and suitable for portable medical sensors, low-power IoT nodes, and wearable electronics requiring stable component supply, fast evaluation turnaround, and verified layout practices for ultra-low-I_Q boost conversion.

Supply support for TPS61299EVM-103 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, embedded processing, and power management technologies, with leadership in high-efficiency, low-voltage power solutions.

The TPS61299EVM-103 belongs to TI's precision low-power evaluation platform family, engineered specifically to accelerate development of battery-powered systems where input voltage can dip below 1 V and standby current must remain sub-µA.

FAQ

What is the primary function of the TPS61299EVM-103?

The TPS61299EVM-103 is an evaluation module that demonstrates the operation and performance of the TPS61299 synchronous boost converter IC. It allows engineers to verify key parameters-including startup behavior, efficiency across load and input voltage ranges, transient response, and output voltage adjustability-using a production-ready PCB layout and BOM. The TPS61299EVM-103 itself does not perform power conversion independently; it hosts and interfaces the TPS61299YBG IC to enable system-level validation.

Can the TPS61299EVM-103 be used to generate a fixed 5-V output?

Yes - the TPS61299EVM-103 is configured by default to deliver a fixed 5-V output using the onboard resistor network and jumper JP5. This matches the nominal output specification of the underlying TPS61299 IC in its standard configuration. Users may reconfigure the output voltage between 1.8 V and 5.5 V by changing the jumper position on J5 to select alternate feedback resistors, as documented in the User Guide schematic and Top Layer drawing.

Does the TPS61299EVM-103 include input voltage sensing capability?

Yes - the TPS61299EVM-103 provides dedicated input voltage sense connections via pins 3 and 4 of J1, placed close to the TPS61299YBG IC's PVIN and GND pins. This allows accurate measurement of voltage delivered directly to the IC, compensating for IR drop in long or high-impedance input cables. The sense lines are routed separately from the main power paths to minimize noise coupling and ensure reliable regulation under dynamic load conditions.

What is the role of the tantalum capacitor C3 on the TPS61299EVM-103?

C3 (150 µF tantalum) on the TPS61299EVM-103 serves as an input bulk capacitor to stabilize the supply when the input source is connected via long cables or high-impedance paths - mitigating voltage droop during high-current transients. In most standard lab setups with short, low-impedance connections, C3 is unnecessary; the ceramic input capacitors (C1, C4, C5–C7) provide sufficient high-frequency decoupling. Its inclusion reflects real-world system-level design considerations rather than IC-level requirements.

Is the TPS61299EVM-103 compliant with FCC Part 15 Class B emissions limits?

No - the TPS61299EVM-103 is classified as a Class A digital device per FCC Part 15, intended for use in commercial, industrial, or laboratory environments. It is not certified for residential use. Users operating the TPS61299EVM-103 in home settings must implement mitigation measures (e.g., reorientation, separation from receivers, or filtered power outlets) if radio/TV interference occurs, as stated in the official TI regulatory notice included with the User Guide.