Overview
The TPS610994YFFR is a synchronous boost converter produced by Texas Instruments. It is designed for battery-powered systems, including alkaline, coin-cell, Li-ion, and Li-polymer batteries, where long battery life and compact solution size are crucial. This converter operates with an ultra-low quiescent current, making it highly efficient under light load conditions.
The device features a wide input voltage range from 0.7 V to 5.5 V and an adjustable output voltage range from 1.8 V to 5.5 V, with fixed output voltage versions available. It supports both Down Mode and Pass-Through operations, ensuring regulated output voltage even when the input voltage exceeds the output voltage.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Input Voltage Range | 0.7 | 5.5 | V | |
| Output Voltage Range | 1.8 | 5.5 | V | |
| Quiescent Current into VIN Pin | 0.4 | 1.1 | µA | |
| Quiescent Current into VOUT Pin | 0.6 | 1.5 | µA | |
| Shutdown Current into VIN Pin | 0.5 | 1.6 | µA | |
| Output Accuracy (PWM Mode) | 3.23 | 3.30 | 3.37 | V |
| Switch Peak Current Limit | 800 mA | |||
| Low Side Switch On Resistance | 250 | 400 mΩ | ||
| Rectifier On Resistance | 300 | 750 mΩ | ||
| Thermal Resistance (Junction-to-Ambient) | 134.4 °C/W | |||
| Package Type | 6-ball WCSP (1.23-mm x 0.88-mm) |
Key Features
- Ultra-low quiescent current of 400 nA into VIN pin and 600 nA into VOUT pin, enabling high efficiency under light load conditions.
- Operating input voltage range from 0.7 V to 5.5 V and adjustable output voltage range from 1.8 V to 5.5 V.
- Fixed output voltage versions available (e.g., 3.3 V for TPS610994YFFR).
- Supports both Down Mode and Pass-Through operations for different applications.
- True shutdown function with less than 0.5 µA input current in shutdown mode.
- Up to 93% efficiency from 10 mA to 300 mA load.
- Minimum 0.8 A switch peak current limit.
- Output overvoltage protection (OVP) and thermal shutdown features.
- Compact 6-ball 1.23-mm x 0.88-mm WCSP package.
Applications
- Memory LCD bias.
- Optical heart rate monitor LED bias.
- Wearable applications.
- Low-power wireless applications.
- Battery-powered devices requiring long battery life and compact solution size.
Q & A
- What is the input voltage range of the TPS610994YFFR?
The input voltage range is from 0.7 V to 5.5 V.
- What is the output voltage range of the TPS610994YFFR?
The output voltage range is from 1.8 V to 5.5 V, with the TPS610994YFFR specifically providing a fixed output voltage of 3.3 V.
- What is the quiescent current of the TPS610994YFFR?
The quiescent current is 400 nA into the VIN pin and 600 nA into the VOUT pin.
- What are the key operating modes of the TPS610994YFFR?
The device supports both Down Mode and Pass-Through operations.
- How efficient is the TPS610994YFFR?
The device can achieve up to 93% efficiency from 10 mA to 300 mA load.
- What is the switch peak current limit of the TPS610994YFFR?
The minimum switch peak current limit is 0.8 A.
- What are the thermal characteristics of the TPS610994YFFR?
The junction-to-ambient thermal resistance is 134.4 °C/W.
- What package types are available for the TPS610994YFFR?
The device is available in a 6-ball 1.23-mm x 0.88-mm WCSP package.
- What are some common applications for the TPS610994YFFR?
Common applications include memory LCD bias, optical heart rate monitor LED bias, wearable applications, and low-power wireless applications.
- Does the TPS610994YFFR have overvoltage protection?
Yes, the device has an output overvoltage protection (OVP) feature.
- How does the TPS610994YFFR handle shutdown?
The device supports true shutdown with less than 0.5 µA input current in shutdown mode.
