Texas Instruments' TPS54327, with D-CAP2 architecture, provides better than 20µs transient response time, which is ¼ of the response time of typical current mode or voltage mode control using similar 22 µF ceramic output capacitors. As a result, output voltage ripples less than 10 mV and is achievable without compensation components and tedious loop response calculations. The TPS54327 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.
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Applications |
- D-CAP2™ mode enables fast transient response
- Low output ripple and allows ceramic output capacitor
- Wide VIN input voltage range: 4.5 V to 18 V
- Output voltage range: 0.76 V to 7.0 V
- Highly efficient integrated FET's optimized for lower duty cycle applications
- 100 mΩ (high side) and 70 mΩ (low side)
- High efficiency, less than 10µA at shutdown
- High initial bandgap reference accuracy
- Adjustable soft start
- Pre-biased soft start
- 700 kHz switching frequency (fSW)
- Cycle by cycle over current limit
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- Wide range of applications for low voltage system
- Digital TV power supply
- High definition Blu-ray Disc™ players
- Networking home terminal
- Digital set top box (STB)
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Texas Instruments' TPS54327, with D-CAP2 architecture, provides better than 20µs transient response time, which is ¼ of the response time of typical current mode or voltage mode control using similar 22 µF ceramic output capacitors. As a result, output voltage ripples less than 10 mV and is achievable without compensation components and tedious loop response calculations. The TPS54327 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.
