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TPS54974

Features: · Low Voltage Separate Power Bus· 15-mW MOSFET Switches for High Efficiencyat 9-A Continuous Output· Adjustable Output Voltage· Externally Compensated With 1% InternalReference Accuracy· Fast Transient Response· Wide PWM Frequency: Adjustable 280 kHz to 700 kHz· Load Protected by Peak ...

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SeekIC No. : 004526939 Detail

TPS54974: Features: · Low Voltage Separate Power Bus· 15-mW MOSFET Switches for High Efficiencyat 9-A Continuous Output· Adjustable Output Voltage· Externally Compensated With 1% InternalReference Accuracy·...

TPS54974 Data Sheet

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Part Number:
TPS54974
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Low Voltage Separate Power Bus
· 15-mW MOSFET Switches for High
    Efficiency at 9-A Continuous Output
· Adjustable Output Voltage
· Externally Compensated With 1%
    Internal Reference Accuracy
· Fast Transient Response
· Wide PWM Frequency: Adjustable
    280 kHz to 700 kHz
· Load Protected by Peak Current Limit
    and Thermal Shutdown
· Integrated Solution Reduces Board
    Area and Total Cost


Application

· Low-Voltage, High-Density Systems
    With Power Distributed at 2.5 V,
     3.3 V Available
· Point-of-Load Regulation for
    High-Performance
    DSPs, FPGAs, ASICs, and
    Microprocessors
· Broadband, Networking, and Optical
    Communications Infrastructure
· Portable Computing/Notebook PCs


Specifications

TPS54974
  VI      Input voltage range SS/ENA
0.3 V to 7 V
RT
0.3 V to 6 V
VSENSE
0.3 V to 4 V
PVIN, VIN
0.3 V to 4.5 V
BOOT
0.3 V to 10 V
  VO     Output voltage range VBIAS, COMP, PWRGD
0.3 V to 7 V
PH
0.6 V to 6 V
  IO      Source current PH
Internally limited
COMP, VBIAS
6 mA
  IS       Sink current PH
16 A
COMP
6 mA
SS/ENA, PWRGD
10 mA
            Voltage differential AGND to PGND
±0.3 V
  TJ       Operating virtual junction temperature range
40to125
  Tstg    Storage temperature
65to150
  Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
300



Description

As a member of the SWIFT™ family of dc/dc regulators, the TPS54974 low-input voltage, high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true,high-performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components;an undervervoltage-lockout circuit to prevent start-up until the VIN input voltage reaches 3 V;an internally and externally set slow-start circuit to limit in-rush currents; and a power-good output useful for processor/logic reset, fault signaling, and supply sequencing.

The TPS54974 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks




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