TPS65251RHAT Semiconductors - ICs by Texas Instruments

DC-DC CONV SYNC BUCK 2.2MHZ VQFN-40

Status: Unknown
Series: -
RoHS: Unknown
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The TPS65251 features three synchronous wide input range high efficiency buck converters. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application. The converters can operate in 5-, 9-, 12- or 15-V systems and have integrated power transistors. The output voltage can be set externally using a resistor divider to any value between 0.8 V and close to the input supply. Each converter features enable pin that allows a delayed start-up for sequencing purposes, soft-start pin that allows adjustable soft-start time by choosing the soft-start capacitor, and a current limit (RLIMx) pin that enables designer to adjust current limit by selecting an external resistor and optimize the choice of inductor. The current mode control allows a simple RC compensation. The switching frequency of the converters can either be set with an external resistor connected to ROSC pin or can be synchronized to an external clock connected to SYNC pin if needed. The switching regulators are designed to operate from 300 kHz to 2.2 MHz. 180° out of phase operation between Buck 1 and Buck 2, 3 (Buck 2 and 3 run in phase) minimizes the input filter requirements.

Where to Buy

Prices starting from US$2.06

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Farnell
from US$4.47
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Texas Instruments
from US$2.06
2,228
in stock
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Newark Electronics
from US$5.01
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element14
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Specifications

Input Voltage Min 4.5V
Input Voltage Max 18V
No. of Outputs 3 Output
DC / DC Converter IC Case VQFN
No. of Pins 40Pins
Output Current - Output 1 3A
Output Current - Output 2 2A
Output Voltage - Output 1 -
Output Voltage - Output 2 -
Regulator Output Type Adjustable
Switching Frequency 2.2MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Max 125°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

4.5-V TO 18-V input, 3A/2A/2A output, synchronous triple buck converter | Texas Instruments
Dc-Dc Conv, Sync Buck, 2.2Mhz, Vqfn-40 | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a TPS65251RHAT?

Additional datasheets, footprints and schematics for TPS65251RHAT are listed on our Part Details page. You can also find images and similar parts to TPS65251RHAT on this page.

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What category does TPS65251RHAT fall under?

The TPS65251RHAT is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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Is the TPS65251RHAT RoHS compliant?

This part has not been flagged as RoHS Compliant.

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