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TPS51120RHBTG4

DC/DC Controller, 4.5V to 28V, 2 Outputs, Synchronous Buck, 580kHz, VQFN-32

TEXAS INSTRUMENTS TPS51120RHBTG4
TEXAS INSTRUMENTS TPS51120RHBTG4
TEXAS INSTRUMENTS TPS51120RHBTG4
TEXAS INSTRUMENTS TPS51120RHBTG4
TEXAS INSTRUMENTS TPS51120RHBTG4
TEXAS INSTRUMENTS TPS51120RHBTG4
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Manufacturer Part No:
TPS51120RHBTG4
Order Code:
3008677

Product Overview

The TPS51120RHBTG4 is a Dual Current Mode Synchronous Step-down Controller with 100mA standby reg for notebook system power. It is a full featured controller designed to run directly off a three- or four-cell Li-ion battery and provide high-power and 5 and/or 3.3V standby regulation for all the downstream circuitry in a notebook computer system. High-current 100mA, 5 or 3.3V on-board linear regulators have glitch-free switch over function to SMPS and can be kept alive independently during standby state. The pseudo-constant frequency adaptive on-time control scheme supports full range of current mode operation including simplified loop compensation, ceramic output capacitors as well as seamless transition to reduced frequency operation at light-load condition. Optional D-CAP mode operation optimized for SP-CAP or POSCAP output capacitors allows further reduction of external compensation parts. Dynamic UVP supports VIN line sag without latch off by hitting 5-V UVP.
  • 3.3 and 5V 100mA Bootstrapped standby regulators with independent enables
  • Selectable D-CAP™ mode enables fast transient response less than 100ns
  • Selectable low ripple current mode
  • Less than 1% internal reference accuracy
  • Selectable PWM-only/auto-skip modes
  • Low-side RDS (ON) loss-less current sensing
  • RSENSE accurate current sense option
  • Internal soft-start and integrated VOUT discharge transistors
  • Integrated 2V reference
  • Adaptive gate drivers with integrated boost diode
  • Power-Good for each channel with delay timer
  • Fault disable mode
  • Green product and no Sb/Br

Applications

Computers & Computer Peripherals, Portable Devices

Product Information

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:
4.5V

:
28V

:
2 Output

:
88%

:
VQFN

:
32Pins

:
580kHz

:
Synchronous Buck (Step Down)

:
-40°C

:
85°C

:
-

:
-

:
MSL 2 - 1 year
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Technical Docs (1)

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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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Packaging type Re-reel

83 In stock

83 UK stock for 3-4 days delivery

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