Texas Instruments TPS54494RSAR
Part Number:
- TPS54494RSAR
Manufacturer:
- Texas Instruments
Ventron No:
- 3754514-TPS54494RSAR
Description:
- IC REG BUCK ADJ 4A/2A DL 16QFN
Datasheet:
- TPS54494RSAR
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Part Overview
Description
The TPS54494 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. It enables system designers to complete the suite of various end equipment's power bus regulators with a cost-effective, low component count, and low standby current solution. The main control loops of the TPS54494 use the D-CAP2TM mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-modeTM allows the TPS54494 to maintain high efficiency during lighter load conditions. The TPS54494 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.
Features
D-CAP2™ Control Mode - Fast Transient Response
No External Parts Required For Loop Compensation
Compatible with Ceramic Output Capacitors
Wide Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76V to 7V
Highly Efficient Integrated FETS Optimized for Low Duty Cycle Applications
90 mΩ (High Side) and 60 mΩ (Low Side)
High Initial Reference Accuracy
4A CH1 / 2A CH2 Continuous Load Current
Low-Side rps(on) Loss-Less Current Sensing
Fixed Soft Start: 1 ms
Non-Sinking Pre-Biased Soft Start
Powergood
700 kHz Switching Frequency
Cycle-by-Cycle Over-Current Limit Control
OCL/UVLO/TSD Protections
Hiccup Timer for Overload Protection
Adaptive Gate Drivers with Integrated Boost PMOS Switch
OCP Constant Due To Thermally Compensated Erosion (with 4000ppm/°C)
16-Pin HTSSOP, 16-Pin VQFN
Auto-Skip Eco-mode™ for High Efficiency at Light Load
Applications
Point-of-Load Regulation in Low Power Systems for Wide Range of Applications
Digital TV Power Supply
Networking Home Terminal
Digital Set Top Box (STB)
DVD Player/Recorder
Gaming Consoles and Other
The TPS54494 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. It enables system designers to complete the suite of various end equipment's power bus regulators with a cost-effective, low component count, and low standby current solution. The main control loops of the TPS54494 use the D-CAP2TM mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-modeTM allows the TPS54494 to maintain high efficiency during lighter load conditions. The TPS54494 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.
Features
D-CAP2™ Control Mode - Fast Transient Response
No External Parts Required For Loop Compensation
Compatible with Ceramic Output Capacitors
Wide Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76V to 7V
Highly Efficient Integrated FETS Optimized for Low Duty Cycle Applications
90 mΩ (High Side) and 60 mΩ (Low Side)
High Initial Reference Accuracy
4A CH1 / 2A CH2 Continuous Load Current
Low-Side rps(on) Loss-Less Current Sensing
Fixed Soft Start: 1 ms
Non-Sinking Pre-Biased Soft Start
Powergood
700 kHz Switching Frequency
Cycle-by-Cycle Over-Current Limit Control
OCL/UVLO/TSD Protections
Hiccup Timer for Overload Protection
Adaptive Gate Drivers with Integrated Boost PMOS Switch
OCP Constant Due To Thermally Compensated Erosion (with 4000ppm/°C)
16-Pin HTSSOP, 16-Pin VQFN
Auto-Skip Eco-mode™ for High Efficiency at Light Load
Applications
Point-of-Load Regulation in Low Power Systems for Wide Range of Applications
Digital TV Power Supply
Networking Home Terminal
Digital Set Top Box (STB)
DVD Player/Recorder
Gaming Consoles and Other
Specifications
Texas Instruments TPS54494RSAR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments TPS54494RSAR.
- Factory Lead Time6 Weeks
- Lifecycle StatusACTIVE (Last Updated: 6 days ago)
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case16-VQFN Exposed Pad
- Number of Pins16
- Operating Temperature-40°C~85°C TA
- PackagingTape & Reel (TR)
- SeriesD-CAP2™, Eco-Mode™
- JESD-609 Codee4
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)2 (1 Year)
- Number of Terminations16
- ECCN CodeEAR99
- Terminal FinishNickel/Palladium/Gold (Ni/Pd/Au)
- Additional FeatureOUTPUT VOLTAGE RANGE IS 0.76 TO 7V; OUTPUT CURRENT LIMIT IS 5A
- SubcategorySwitching Regulator or Controllers
- Terminal PositionQUAD
- Peak Reflow Temperature (Cel)260
- Supply Voltage12V
- Terminal Pitch0.65mm
- Base Part NumberTPS54494
- FunctionStep-Down
- Number of Outputs2
- Voltage - Input (Max)18V
- Output Voltage7V
- Output TypeAdjustable
- Operating Supply Voltage18V
- Input Voltage-Nom12V
- Min Supply Voltage4.5V
- Analog IC - Other TypeDUAL SWITCHING CONTROLLER
- Output ConfigurationPositive
- Current - Output4A 2A
- Quiescent Current1.2mA
- Max Output Voltage7V
- Voltage - Output (Min/Fixed)0.76V
- TopologyBuck
- Control ModeVOLTAGE-MODE
- Frequency - Switching700kHz
- Control TechniquePULSE WIDTH MODULATION
- Synchronous RectifierYes
- Min Output Voltage760mV
- Height1mm
- Length4mm
- Width4mm
- Thickness900μm
- Radiation HardeningNo
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
Certification
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