TPS56628DDAR Power Path Management IC Switching Voltage Regulators 4.5V to 18V Input 6-A Sync SD Cnvtr
microchip battery management
,power management integrated circuit
TPS56628DDAR Power Path Management IC Switching Voltage Regulators 4.5V to 18V Input 6-A Sync SD Cnvtr
FEATURES
- D-CAP2TM Mode Enables Fast Transient Response
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Low Output Ripple and Allows Ceramic Output Capacitor
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Wide VIN Input Voltage Range: 4.5 V to 18 V
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Output Voltage Range: 0.76 V to 5.5 V
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Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications
– 36 mΩ (High Side) and 28 mΩ (Low Side) -
High Efficiency, less than 10 μA at shutdown
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High Initial Bandgap Reference Accuracy
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Pre-Biased Soft Start
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650-kHz Switching Frequency (fSW)
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Cycle By Cycle Over Current Limit
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Auto-Skip Eco-modeTM for High Efficiency at Light Load
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Power Good Output
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Fixed Soft Start: 1.0 ms
APPLICATIONS
• Wide Range of Applications for Low Voltage System
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– Digital TV Power Supply
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– High Definition Blu-ray DiscTM Players
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– Networking Home Terminal
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– Digital Set Top Box (STB)
DESCRIPTION
The TPS56628 is an adaptive on-time D-CAP2TM mode synchronous buck converter. The TPS56628 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS56628 uses the D-CAP2TM mode control that provides a 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 TPS56628 to maintain high efficiency during lighter load conditions. The TPS56628 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The TPS56628 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
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