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Bare Die Product Detail: SiS2576-ADJ

Step-Down (Buck) Converter:
SiS2576-ADJ step-down(buck) switching regulator drives up to 3A with tight line-load regulation & integrates a fixed 52kHz oscillator. The output switch is rugged with current limiting & thermal shutdown. A shutdown pin enables low power consumption.
The device directly replaces legacy National (NSC) LM2576-ADJ and Texas Instruments LM2576-ADJ (TI). Assembles into TO-220 as LM2576T-ADJ and also into other alternative package options where required.
Features:
** END OF LIFE ** NOT RECOMMENDED FOR NEW DESIGN
  • Output voltage range 1.23V to 37V ±2% max over line & load conditions
  • Guaranteed 3A output current
  • Wide input voltage range: 4V to 40 V
  • 52 kHz fixed-frequency internal oscillator
  • TTL shutdown capability, low-power standby mode
  • Low power standby IQ <200µA typical
  • High efficiency, typically >80%
  • Uses readily available standard inductors
  • Thermal shutdown and current-limit protection.

Applications:

  • Simple high efficiency step-down regulator
  • Efficient pre-regulator for linear regulators
  • On-card switching regulators
  • Positive-to-negative voltage converter (inverting Buck-Boost)
  • Isolated flyback converter using low external component count
  • Negative boost converter.
Vendor:
Silicon Supplies
  Electrical Datasheet

Die Physical Data:
Footprint: 6.600mm² (10230.031mil²)
  Request Pad Layout
Product Families: Used for this device are tabulated below.
Functional:
  • Regulated Outputs: 1
  • Ctrl Mode: Voltage Mode
Specification:
VIN (MIN): 4.00V
VIN (MAX): 40.0V
VOUT (MIN): 1.2V
VOUT (MAX): 37.00V
IOUT (MAX): 3.0A
Frequency (MAX): 42kHz
f(MAX): 63kHz
IQ: 5.000mA
Duty Cycle(Max): 98%
Other Detail: Important information for this device is tabulated below.
Traffic light setting for Minimum Order Quantity indicates the following:
  • Green:Available from stock or at low factory MOQ.
  • Amber: Available on factory order with MOQ.
  • Red: High factory MOQ may apply, please ask for details.
Traffic light setting for High Reliability indicates the following:
  • Green: This bare die is specified and tested for use in high reliability applications.
  • Amber: This bare die can meet higher reliability specifications with additional testing & qualification, please ask for details.
  • Red: This bare die is not specified or specifically designed for use in high reliability applications.
Traffic light setting for Space Grade indicates the following:
  • Green: This bare die is qualified for space applications or has space level qualification data, please ask for details.
  • Amber: This bare die can be specified for space applications with additional testing and qualification, please ask for details.
  • Red: Suitability of this bare die for space applications is unknown and requires further qualification, please ask for details.

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