TPS54294RSAR Power Path Management IC Switching Voltage Regulators 4.5-18V In,Dual 2A Out,Sync SD Cnvrtr
power management integrated circuit
,battery charge management ic
TPS54294RSAR Power Path Management IC Switching Voltage Regulators 4.5-18V In,Dual 2A Out,Sync SD Cnvrtr
FEATURES
• D-CAP2TM Control Mode
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– Fast Transient Response
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– No External Parts Required For Loop Compensation
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– Compatible with Ceramic Output Capacitors
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Wide Input Voltage Range : 4.5 V to 18 V
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Output Voltage Range : 0.76V to 7.0V
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Highly Efficient Integrated FETs Optimized for Low Duty Cycle Applications
– 150 mΩ (High Side) and 100 mΩ (Low Side)
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High Initial Reference Accuracy
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Low-Side rDS(on) Loss-Less Current Sensing
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Fixed Soft Start : 1.0ms
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Non-Sinking Pre-Biased Soft Start
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Powergood
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700 kHz Switching Frequency
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Cycle-by-Cycle Over-Current Limit Control
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OCL/OVP/UVP/UVLO/TSD Protections
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Adaptive Gate Drivers with Integrated Boost PMOS Switch
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OCP Constant Due To Thermally Compensated rDS(on) with 4000ppm/°C
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16-Pin HTSSOP, 16-Pin VQFN
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Auto-Skip Eco-modeTM for High Efficiency at Light Load
APPLICATIONS
• Point-of-Load Regulation in Low Power Systems for Wide Range of Applications
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– Digital TV Power Supply
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– Networking Home Terminal
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– Digital Set Top Box (STB)
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– DVD Player/Recorder
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– Gaming Consoles and Other
DESCRIPTION
The TPS54294 is a dual, adaptive on-time D-CAP2TM mode synchronous buck converter. The TPS54294 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 TPS54294 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- modeTM operation at light loads. Eco-modeTM allows the TPS54294 to maintain high efficiency during lighter load conditions. The TPS54294 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.
The TPS54294 is available in a 4.4mm × 5.0mm 16- pin TSSOP (PWP) package, and 4mm x 4mm 16-pin VQFN (RSA) package specified for an ambient temperature range from –40°C to 85°C.
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