Texas Instruments TPS65262 Triple Synchronous Buck Converters
Texas Instruments TPS65262 Triple Synchronous Buck Converters are monolithic triple synchronous step-down (buck) converters with 3A/1A/1A output current. A wide 4.5V to 18V input supply voltage range encompasses the most intermediate bus voltage operating off 5V, 9V, 12V, or 15V power bus. The converters, with constant frequency peak current mode, are designed to simplify its application while giving designers options to optimize the system according to targeted applications. The device operates at a 600kHz fixed switching frequency. The loop compensations for buck2 and buck3 have been integrated for fewer external components. The 180° out-of-phase operation between buck1 and buck2, 3 (buck2 and buck3 run-in phase) minimizes the input filter requirements.
Features
- 4.5V to 18V operating input voltage range
- 0.6V ±1% feedback reference voltage
- 3A/1A/1A maximum continuous output current
- Fixed 600kHz switching frequency
- Programmable soft-start time for Buck1
- Fixed 1ms soft-start time for Buck2 and Buck3
- Internal loop compensation for Buck2 and Buck3
- Dedicated enable pins for each Buck
- Support Pulse Skipping Mode (PSM) and Forced Continuous Current Mode (FCCM)
- Output voltage power-good indicator
- Thermal overloading protection
- 32-pin VQFN (RHB), 5mm x 5mm package
- Overvoltage, overcurrent, short-circuit, and over-temperature protection
Applications
- DTV
- Set-top boxes
- Home gateway and access point networks
- Wireless routers
- Surveillance
- POS machines
TPS65262
Application Circuit
TPS65262-1
Block Diagram
Datasheets
Publicado: 2016-01-12
| Actualizado: 2025-03-10