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Details for TPS54331DR by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC/DC CONV BUCK 570KHZ SOIC-8
TPS54331DR image

TPS54331DR by Texas Instruments

DC/DC CONV BUCK 570KHZ SOIC-8
Features
3.5 to 28-V Input Voltage Range
Adjustable Output Voltage Down to 0.8 V
Adjustable Slow-Start Limits Inrush Currents
Available in Easy-to-Use SOIC8 Package or Thermally Enhanced SOIC8 PowerPADu2122 Package
Cycle-by-Cycle Current Limit, Frequency Fold Back, and Thermal Shutdown Protection
Fixed 570 kHz Switching Frequency
High Efficiency at Light Loads With a Pulse Skipping Eco-modeu2122
Integrated 80-mu2126 High-Side MOSFET Supports up to 3-A Continuous Output Current
Overvoltage Transient Protection
Programmable UVLO Threshold
Supported by WEBENCHu00ae
Typical 1-u03bcA Shutdown Quiescent Current
Part Information
TPS54331DR image
RoHS Compliant
Description
The TPS54331 device is a 28-V, 3-A nonsynchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-μA shutdown supply-current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD package that have been internally optimized to improve thermal performance.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
3.5V
Input Voltage Max:
28V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
SOIC
No. of Pins:
8Pins
Output Current:
3A
Output Voltage Min:
800mV
Output Voltage Max:
25V
Switching Frequency:
570kHz
Operating Temperature Max:
150°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
-
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
DC/DC CONV, BUCK, 570KHZ, SOIC-8; Topology:Buck (Step Down); Input Voltage Min:3.5V; Input Voltage Max:28V; No. of Outputs:1Outputs; DC / DC Converter IC Case:SOIC; No. of Pins:8Pins; Output Current:3A; Output Voltage Min:800mV; RoHS Compliant: Yes Newark Electronics
Conv DC-DC Single Step Down 3.5V to 28V 8-Pin SOIC T/R Avnet America
Conv DC-DC Single Step Down 3.5V to 28V 8-Pin SOIC T/R Avnet Europe