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TPS54426PWPR
1FEATURES DESCRIPTIONThe TPS54426is an adaptive on-time
23• D-CAP2™ Mode Enables Fast Transient mode synchronous buck converter.
Response enables system designersto complete•
Low Output Ripple and Allows Ceramic Output various end equipment’s power bus regulators
Capacitor cost effective, low component count,
current solution. The main control•
Wide VIN Input Voltage Range: 4.5Vto 18VTPS54426 uses the D-CAP2™ mode•
Output Voltage Range: 0.76Vto 5.5V providesa very fast transient response•
Highly Efficient Integrated FET’s Optimized external compensation components.
for Lower Duty Cycle Applications on-time control supports seamless transition
65 mΩ (High Side) and 55 mΩ (Low Side) PWM mode at higher load
Eco-mode™ operation at light loads.•
High Efficiency, less than10 μA
at shutdown allows the TPS54426 to maintain•
High Initial Bandgap Reference Accuracy during lighter load conditions. The•
Adjustable Soft Start hasa proprietary circuit that enables
adoptto both low equivalent series resistance•
Pre-Biased Soft Startoutput capacitors, such as POSCAP, SP-CAP,•
700-kHz Switching Frequency (fSW) ultra-low ESR ceramic capacitors. The•
Cycle By Cycle Over Current Limit operates from 4.5-Vto 18-V VIN input. The
voltage can be programmed between 0.76•
Power Good Output The device also features an adjustable•
Auto-Skip Eco-mode™ for High Efficiencyat time anda power good function. The TPS54426
Light Load availablein the 14-pin HTSSOP package and
pin QFN package, designedto operate from
APPLICATIONS 85°C.
Wide Rangeof Applications for Low Voltage
System
Digital TV Power Supply High Definition Blu-ray Disc™ Players Networking Home Terminal (STB)
