TPS54821RHLR Semiconductors - ICs by Texas Instruments

DC/DC CONV SYNC BUCK 1.6MHZ VQFN-14

Status: Unknown
Series: -
RoHS: Unknown
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The TPS54821 in thermally enhanced 3.5 mm x 3.5 mm QFN package is a full featured 17 V, 8 A synchronous step down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor's footprint. The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the device when the die temperature exceeds the thermal shutdown temperature and enables the part again after the built-in thermal shutdown hiccup time.

Where to Buy

Prices starting from US$1.32

Distributor Stock
Logo for Farnell
Farnell
from US$1.87
586
in stock
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Logo for Texas Instruments
Texas Instruments
from US$1.32
18,175
in stock
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Logo for Newark Electronics
Newark Electronics
from US$3.24
586
in stock
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Logo for element14
element14
from US$1.96
586
in stock
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Logo for Micros
Micros
from US$1.99
49
in stock
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Specifications

Topology Synchronous Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 17V
No. of Outputs 1Outputs
DC / DC Converter IC Case VQFN
No. of Pins 14Pins
Output Current 8A
Output Voltage Min 600mV
Output Voltage Max 15V
Switching Frequency 1.6MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL -
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

4.5-V to 17-V, 8-A synchronous buck converter with hiccup current limit | Texas Instruments
Dc/Dc Conv, Sync Buck, 1.6Mhz, Vqfn-14 | Newark Electronics
DC/DC CONV, SYNC BUCK, 1.6MHZ, VQFN-14 | element14
Conv DC-DC 4.5V to 17V Step Down Single-Out 0.6V to 15V 8A 14-Pin VQFN | Micros


Frequently Asked Questions

Where can I find additional details, specifications and documents for a TPS54821RHLR?

Additional datasheets, footprints and schematics for TPS54821RHLR are listed on our Part Details page. You can also find images and similar parts to TPS54821RHLR on this page.

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What category does TPS54821RHLR fall under?

The TPS54821RHLR is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

Can I view similar or alternative parts?

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Is the TPS54821RHLR RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for TPS54821RHLR have stock available?

Authorised distributors including Texas Instruments, Newark Electronics, element14, Farnell and Micros have stock available or on a lead time for TPS54821RHLR.

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