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TPS65261RHBT

DC-DC Switching Regulator Boost, Adjustable, 4.5V-18Vin, 600 mV/3A out, 2 MHz, VQFN-32

TEXAS INSTRUMENTS TPS65261RHBT
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Manufacturer Part No:
TPS65261RHBT
Order Code:
3007469

Product Overview

The TPS65261RHBT is a monolithic triple synchronous Step-down/Buck Converter for use with set-top boxes. A wide 4.5 to 18V input supply voltage range encompasses the most intermediate bus voltages operating off 5, 9, 12 or 15V power bus. The converter, with constant frequency peak current mode, is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters can be adjusted from 250kHz to 2MHz with an external resistor. The 180° out-of-phase operation between Buck1 and Buck2, 3 (Buck2 and 3 run in phase) minimizes the input filter requirements. It features an automatic power sequence with connecting MODE pin to V7V and configuring EN1/2/3 pins. The device also features an open-drain RESET signal to monitor power down. At light load, the TPS65261 automatically operates in pulse skipping mode (PSM). PSM mode provides high efficiency by reducing switching losses at light loads.
  • Dedicated enable and soft-start pins for each buck
  • Automatic power-up/power-down sequence
  • Pulse skipping mode (PSM) at light load
  • Output voltage power good indicator
  • Input voltage power failure indicator
  • Thermal overloading protection
  • 0.6V Feedback reference voltage with ±1% accuracy
  • Green product and no Sb/Br

Applications

Consumer Electronics, Communications & Networking, Wireless

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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:
Synchronous Buck (Step Down)

:
4.5V

:
18V

:
3Outputs

:
VQFN

:
32Pins

:
3A

:
600mV

:
-

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2MHz

:
85°C

:
-

:
-

:
MSL 2 - 1 year
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Technical Docs (1)

CAD Downloads

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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More stock available to supplier lead times which is approximately 10/31/22

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