Texas Instruments (TI) introduced a simple, easy-to-use, 2-A synchronous buck converter TPS562207 in a SOT563 package. The device is optimized to operate with minimum external component counts and also optimized to achieve low standby current.
This switch mode power supply (SMPS) device employs D-CAP2 mode control providing a fast transient response and supporting both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.
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| The TPS562207 Simplified Application Schematic. |
TPS562207 operates in Forced Continuous Conduction Mode (FCCM), which maintains fixed switching frequency and output voltage ripple is very small. TPS562207 is available in a 6-pin 1.6-mm × 1.6-mm SOT563 (DRL) package, and specified from a –40 °C to 125 °C junction temperature.
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| TPS562207 Efficiency vs. Load Current. |
Features
- 2-A converter integrated 145-mΩ and 86-mΩ FETs
- D-CAP2™ Mode Control with fast transient response
- Input voltage range: 4.3 V to 17 V
- Output voltage range: 0.8 V to 7 V
- Forced continuous conduction mode
- 590-kHz switching frequency
- Low shutdown current less than 3 μA
- 2% feedback voltage accuracy (25 °C)
- Support pre-bias function
- Cycle-by-cycle overcurrent limit
- Hiccup-mode overcurrent protection
- Non-latch UVP and TSD protections
- Fixed soft start: 1.0 ms
Applications
- Digital TV power supply
- Smart speaker
- Wired networking
- Digital set top box (STB)
- Surveillance
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| TPS562207EVM 2-A, Synchronous Step-down Converter Evaluation Module. |
