Product Summary
The TPS54326PWPR is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54326PWPR enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54326PWPR uses the D-CAP2 mode control which provides a fast transient response with no external components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency. The TPS54326PWPR also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The applications of the TPS54326PWPR include Wide Range of Applications for Low Voltage System, Digital TV Power Supply, High Definition Blu-ray Disc Players, Networking Home Termina, Digital Set Top Box (STB).
Parametrics
TPS54326PWPR absolute maximum ratings: (1)Input voltage range: –0.3 to 20 V; (2)Output voltage range: –0.3 to 6.5 V; (3)Voltage from GND to POWERPAD: –0.2 to 0.2 V; (4)ESD rating Electrostatic discharge: 2 kV; (5)Operating junction temperature: –40 to 150 ℃; (6)Tstg, Storage temperature: –55 to 150 ℃.
Features
TPS54326PWPR features: (1)D-CAP2 Mode Enables Fast Transient Response; (2)Low Output Ripple and Allows Ceramic Output Capacitor; (3)Wide VCC Input Voltage Range: 4.5 V to 18 V; (4)Wide VIN Input Voltage Range: 2 V to 18 V; (5)Output Voltage Range: 0.76 V to 5.5 V; (6)Highly Efficient Integrated FET’s Optimized for Lower Duty Cycle Applications; (7)High Efficiency, less than 10 μA at Shutdown; (8)High Initial Bandgap Reference Accuracy; (9)Adjustable Soft Start; (10)Pre-Biased Soft Start; (11)700-kHz Switching Frequency (fSW); (12)Cycle-By-Cycle Overcurrent Limit ; (13)Power Good Output.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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TPS54326PWPR |
Texas Instruments |
DC/DC Switching Regulators 4.5-18V Inp,3A Synch |
Data Sheet |
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