Product Summary
The TPS65250RHAT is a 4.5 to 18V input, high current, synchronous step down three buck converter with intergrated fet and dying gasp storage and release circuit. The TPS65250RHAT features three synchronous wide input range high efficiency buck converters. Applications of the TPS65250RHAT include: xDSL/xPON Modems, Cable Modems, Power Line Modem, Home Gateway and Access Point Networks and Set Top Box.
Parametrics
TPS65250RHAT absolute maximum ratings: (1) Voltage range at STRG: -0.3 to 30V; (2) Voltage range at VIN1,VIN2, VIN3, VINDG, LDODG, LX1, LX2, LX3: -0.3 to 18V; (3) Voltage range at LX1, LX2, LX3 (maximum withstand voltage transient < 10 ns) : -1 to 18V; (4) Voltage at BST1, BST2, BST3, BSTDG, referenced to Lx pin: -0.3 to 7V; (5) Voltage at V7V, COMP1, COMP2, COMP3: -0.3 to 7V; (6) Voltage at AGND, GND: -0.3 to 0.3V; (7) Operating virtual junction temperature range Tj: -40 to 125°C; (8) Storage temperature range Tstg: -55 to 150°C.
Features
TPS65250RHAT features: (1) Wide Input Supply Voltage Range (4.5V - 18V) ; (2) 0.8 V, 1% Accuracy Reference; (3) Continuous Loading: 3 A (Buck 1), 2 A (Buck 2 and 3) ; (4) Maximum Current: 3.5 A (Buck 1) , 2.5 A (Buck 2 and 3) ; (5) Adjustable Current Limit Set By External Resistor; (6) Storage and Release Circuit Optimized for Reduction of Storage Capacitance in DyingGasp Mode (Option) ; (7) Low Power Mode Set By External Signal; (8) QFN Package, 40-Pin 6mm x 6mm RHA.
Diagrams
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