See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

RHL | 24

Temp:

S (-40 to 150)

ECO Plan:

Green (RoHS & no Sb/Br)

TPS54122RHLR


3A QuietSupply™ Regulator with Integrated DC-DC Converter and Low-Noise LDO

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Qty.Price
1 - 9 $ 3.85
10 - 24 $ 3.47
25 - 99 $ 3.24
100 - 249 $ 2.90
250 - 499 $ 2.71
500 - 749 $ 2.36
750 - 999 $ 2.04
1000 - 9999 $ 2.00

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Texas Instruments TPS54122RHLR

The TPS54122 device combines an efficient step-down switching (DC-DC) converter with a high power-supply rejection (PSR), low-noise, low-dropout regulator (LDO) to provide an ultra-low-noise power supply that delivers a QuietSupply rail to noise-sensitive applications.

TPS54122 is ideally suited for systems with 5-V power busses and can support 3-A continuous output current through the DC-DC or LDO output. The LDO output voltage can be set from 0.8 V to 3.6 V, and the DC-DC can be adjusted from 0.83 V to 5 V using external resistors. The device can be used in a wide range of low-noise applications because the dc-dc converter and LDO are completely configurable. In addition, the TPS54122 includes features such as soft start, switching frequency synchronization, and a power-good signal.

By feeding the output of the DC-DC converter to the input of the LDO, the TPS54122 can supply efficient, low-noise power at up to 3 A.

The TPS54122 is available in a space-saving,
5.50 mm × 3.50 mm VQFN package, and is specified to operate over a –40°C to +125°C ambient temperature range.





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