Texas Instruments TLV61070A 2A Boost Converter
Texas Instruments TLV61070A 2A Boost Converter is a synchronous boost converter with 0.5V ultra-low input voltage. The device provides a power supply solution for portable equipment and smart devices powered by various batteries and supercapacitors. The TLV61070A has a typical 2.5A valley switch current limit over the full temperature range. With a wide input voltage range of 0.5V to 5.5V, the TLV61070A supports supercapacitor backup power applications, which may deeply discharge the supercapacitor.
The TLV61070A operates at a 1MHz switching frequency when the input voltage exceeds 1.5V. The switching frequency decreases gradually to 0.55MHz when the input voltage is below 1.5V down to 1V. The TLV61070A enters power-save mode at light load conditions to maintain high efficiency over the entire load current range. The TLV61070A consumes a 20µA quiescent current from VOUT in light load conditions. During a shutdown, the TLV61070A is completely disconnected from the input power and only consumes a 0.1µA current to achieve extended battery life. The TLV61070A has 5.7V output overvoltage protection, output short circuit protection, and thermal shutdown protection.
The Texas Instruments TLV61070A offers a very small solution size with a 2.9mm × 1.6mm SOT23-6 (DBV) package and a minimum amount of external components.
Features
- 0.5V to 5.5V input voltage range
- 1.3V minimum input voltage for start-up
- 2.2V to 5.5V output voltage setting range
- Two 69mΩ (LS) / 89mΩ (HS) MOSFETs
- 2.5A valley switching current limit
- 92.3% efficiency at VIN = 3.6V, VOUT = 5V and IOUT = 1.0A
- 1MHz switching frequency when VIN > 1.5V and 0.55MHz switching frequency when VIN < 1V
- Typical 0.1µA shutdown current from VIN and SW
- ±2.5% reference voltage accuracy over –40°C to +125°C
- Auto PFM operation mode at light load
- Pass-through mode when VIN > VOUT
- True disconnection between input and output during shutdown
- Output overvoltage and thermal shutdown protections
- Output short-circuit protection
- 2.9mm × 1.6mm SOT23-6 (DDC) 6-pin package
Applications
- Electronic shelf label
- Video doorbell
- Remote controller
Functional Block Diagram
Related Development Tool
Texas Instruments TLV61070AEVM-095 Converter Evaluation Module
Evaluates the TLV61070A, a synchronous boost converter with an ultra-low input voltage of 0.5V.