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.
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Distributor Stock
Logo for Texas Instruments Texas Instruments
9,000 units
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Logo for Mouser Electronics Mouser Electronics
No stock
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Logo for Arrow Electronics Arrow Electronics
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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
Conv DC-DC 4.5V to 17V Synchronous Step Down Single-Out 0.6V to 15V 8A 14-Pin VQFN EP T/R | Component Sense
4.5-18Vin,8A Sync St Down SWIFT Converte | Mouser Electronics
DC/DC CONV, SYNC BUCK, 1.6MHZ, VQFN-14 | Newark Electronics

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

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This part has not been flagged as RoHS Compliant.

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