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TEXAS INSTRUMENTS  TPS54334DDA  DC-DC Switching Buck Step Down Regulator, Adjustable, 4.2V-28Vin, 800mV-24Vout, 3Aout, HSOP-8

TEXAS INSTRUMENTS TPS54334DDA
Technical Data Sheet (10.20KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The TPS54334DDA is a synchronous monolithic Buck Converter with integrated MOSFETs. The TPS54334 enables small designs by integrating the MOSFETs and implementing current mode control to reduce external component count. Efficiency is maximized through the integrated 128/84mR MOSFETs, low quiescent supply current and pulse skipping at light loads. Using the enable pin, shutdown supply current is reduced to 2µA by entering a shutdown mode. The TPS54334 provides accurate regulation for a variety of loads with an accurate 1.5% voltage reference over temperature. Cycle-by-cycle current limiting on the high-side FET protects the TPS54334 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.
  • Power good function
  • Fixed-frequency current mode control
  • Pulse skipping boosts efficiency at light loads
  • Overcurrent protection for both MOSFETs with hiccup mode for severe fault conditions
  • Thermal and overvoltage transient protection
  • Monotonic start-up into pre-biased outputs
  • 0.8V Internal voltage reference with ±1.5% accuracy over temperature
  • Green product and no Sb/Br

Product Information

Input Voltage Min:
4.2V
Input Voltage Max:
28V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
HSOP
No. of Pins:
8Pins
Output Current:
3A
Output Voltage Min:
800mV
Output Voltage Max:
24V
Switching Frequency:
570kHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Consumer Electronics;
  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 2 - 1 year
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000159