Texas Instruments TPS551892-Q1 Fully Integrated Buck-Boost Converter
Texas Instruments TPS551892-Q1 Fully Integrated Buck-Boost Converter is a synchronous buck-boost converter optimized for converting battery or adapter voltage into power supply rails. The TPS551892-Q1 integrates four MOSFET switches, providing a compact solution for various applications. The TPS551892-Q1 has up to 27V input voltage capability. The TPS551892-Q1 can deliver 60W from a 12V input when working in boost mode. It is capable of providing 45W from a 9V input voltage. The TPS551892-Q1 employs an average current-mode control scheme. The switching frequency is programmable by an external resistor from 200kHz to 2.2MHz and can be synchronized to an external clock. The TPS551892-Q1 also provides an optional spread spectrum to minimize peak EMI. The device offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit, and output short circuit protection.
The TPS551892-Q1 also ensures safe operation with an optional output current limit and hiccup-mode protection in sustained overload conditions. The Texas Instruments TPS551892-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0mm × 5.0mm QFN package.
Features
- AEC-Q100 qualified
- Device temperature grade 1 (-40°C to +125°C ambient operating temperature range)
- Wide input and output voltage range
- 3.0V to 27V (absolute maximum. 42V) wide input voltage range
- 0.8V to 22V programmable output voltage range
- ±1% reference voltage accuracy
- Adjustable output voltage compensation for voltage droop over the cable
- ±5% accurate output current monitoring
- High efficiency over the entire load range
- 96% efficiency at VIN = 12V, VOUT = 20V and IOUT = 3A
- Programmable PFM and FPWM mode at light load
- Avoid frequency interference and crosstalk
- Optional clock synchronization
- Programmable switching frequency from 200kHz to 2.2MHz
- EMI mitigation
- Optional programmable spread spectrum
- Lead-less package
- Rich protection features
- Output overvoltage protection
- Hiccup mode for output short-circuit protection
- Thermal shutdown protection
- 8A average inductor current limit
- Small solution size
- Maximum switching frequency up to 2.2MHz
- 3.0mm × 5.0mm HotRod™ QFN package
Applications
- Advanced driver-assistance system (ADAS)
- Wireless charger
- Automotive infotainment and cluster
Functional Block Diagram
Additional Resources
Development Tool
Texas Instruments TPS552892EVM-111 Evaluation Module
Configured to evaluate the operation of the TPS552892 synchronous buck-boost converter.
Opublikowano: 2024-08-16
| Zaktualizowano: 2025-05-15