MAX16935 Datasheet (data sheet) PDF





MAX16935 Datasheet, 2.2MHz Step-Down Converters

MAX16935   MAX16935  

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MAX16935/MAX16939 EVALUATION KIT AVAILA BLE 36V, 3.5A, 2.2MHz Step-Down Convert ers with 28µA Quiescent Current Gener al Description The MAX16935/MAX16939 ar e 3.5A current-mode stepdown converters with integrated high-side and lowside MOSFETs designed to operate with an ext ernal Schottky diode for better efficie ncy. The low-side MOSFET enables fixed- frequency forced-PWM (FPWM) operation u nder light-load applications. The devic es operate with input voltages from 3.5 V to 36V, while using only 28FA quiesce nt current at no load. The switching fr equency is resistor programmable from 2 20kHz to 2.2MHz and can be synchronized to an external clock. The

MAX16935 Datasheet, 2.2MHz Step-Down Converters

MAX16935   MAX16935  
devices’ output voltage is available as 3.3V/5V fixed or adjustable from 1V to 10V. The wide input voltage range al ong with its ability to operate at 98% duty cycle during undervoltage transien ts make the devices ideal for automotiv e and industrial applications. Under li ght-load applications, the FSYNC logic input allows the devices to either oper ate in skip mode for reduced current co nsumption or fixed-frequency FPWM mode to eliminate frequency variation to min imize EMI. Fixed-frequency FPWM mode is extremely useful for power supplies de signed for RF transceivers where tight emission control is necessary. Protecti on features include cycle-by-cycle curr ent limit and thermal shutdown with aut omatic recovery. Additional features in clude a power-good monitor to ease powe r-supply sequencing and a 180N out-of-p hase clock output relative to the inter nal oscillator at SYNCOUT to create cas caded power supplies with multiple devi ces. The MAX16935/MAX16939 operate over the -40NC to +125NC automotive tempera ture range and are available in 16-pin (5mm x 5mm) TQFN-EP and 16-pin TSSOP-EP packages. Applications ●● Point-of -Load Applications ●● Distributed D C Power Systems ●● Navigation and R adio Head Units Benefits and Features ●● Integration and High-Switching Frequency Saves Space • Integr








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