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TPS610994YFFR

TITPS610994YFFR

Texas Instruments
Boost Switching Regulator IC Positive Fixed 3.3V 1 Output 800mA (Switch) 6-UFBGA, DSBGA
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Overview

The TPS610994YFFR is a high-efficiency synchronous boost converter designed to provide a fixed 3.3V output from input sources as low as 0.7V. It features an ultra-low quiescent current of 0.4uA, making it ideal for products that remain in standby mode for extended periods while operating from single-cell batteries.

Why Choose This Part

The device excels in light-load efficiency due to its 400nA quiescent current and supports a wide input voltage range from 0.7V to 5.5V. It includes a Down Mode that regulates the output even when the input voltage exceeds the target 3.3V, and ensures true load disconnection during shutdown to prevent battery drain.

Applications

Wearable Electronics
Provides a stable 3.3V rail for biometric sensors and low-power MCUs in space-constrained fitness trackers.
Memory LCD Bias
Supplies the specific voltage requirements for low-power reflective displays while maintaining high efficiency at micro-ampere loads.
IoT Wireless Nodes
Efficiently boosts voltage from single-cell alkaline or NiMH batteries to power BLE or Zigbee radios during transmission bursts.
Optical Heart Rate Monitors
Powers LED biasing circuits in medical wearables where battery life and minimal PCB footprint are critical.

Key Specifications

Function Step-Up
Topology Boost
Output Type Fixed
Mounting Type Surface Mount
Package / Case 6-UFBGA, DSBGA
Current - Output 800mA (Switch)
Number of Outputs 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TJ)
Synchronous Rectifier Yes
Voltage - Input (Max) 5.5V
Voltage - Input (Min) 0.7V
Supplier Device Package 6-DSBGA
Voltage - Output (Min/Fixed) 3.3V

Getting Started

For initial evaluation, utilize the TPS61099EVM-768 evaluation module to test transient response and efficiency across various load conditions. Ensure that low-ESR ceramic capacitors are placed as close as possible to the VIN and VOUT pins of the 6-ball DSBGA package to minimize switching noise and ensure stability.

TPS61099 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Output Type Output V Stock
TPS610994YFFR (this part) Fixed 3.3V —
TPS61099EVM-768 — — 16
TPS61099YFFR Adjustable 1.8V 1,930

Also Consider

TPS610981DSER TITexas Instruments - Offers an integrated LDO and load switch in a slightly larger WSON package for simplified power sequencing.
MAX17222ELT+T Maxim Integrated - Provides a similar 400nA IQ with a higher 0.5A peak inductor current limit in a standard UDFN package.
MCP1640T-I/CHY MCHPMicrochip Technology - A more cost-effective boost solution for applications that can tolerate higher quiescent current and require a SOT-23 package.