CS51414GDR8G

The CS51414GDR8G belongs to CS5141X products family which are 1.5 A buck regulator ICs. These devices are fixed-frequency operating at 260 kHz and 520 kHz. The CS51412 and CS51414 have the option of powering the controller from an external 3.3 V to 6.0 V supply in order to improve efficiency, especially in high input voltage, light load conditions. The on?chip NPN transistor is capable of providing a minimum of 1.5 A of output current, and is biased by an external "boost" capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback. The regulators use the V2 control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation for today's high-speed logic. The CS51411 and CS51413 are functionally pin-compatible with the LT1375. The CS51412 and CS51414 are functionally pin-compatible with the LT1376. These products accommodate input voltages from 4.5 V to 40 V. The CS51411 and CS51413 contain synchronization circuitry.

The features of CS51414GDR8G can be summarized as (1)V2 architecture provides ultrafast transient response, improved regulation and simplified design; (2)2.0% error amp reference voltage tolerance; (3)switch frequency decrease of 4:1 in short circuit conditions reduces short circuit power dissipation; (4)BOOST lead allows "bootstrapped" operation to maximize efficiency; (5)sync function for parallel supply operation or noise minimization; (6)shutdown lead provides power-down option; (7)85A quiescent current during power-down; (8)thermal shutdown; (9)soft-start; (10)pin-compatible with LT1375 and LT1376; (11)pb-free packages are available.

The absolute maximum ratings of CS51414GDR8G are (1)operating junction temperature range, TJ: -40 to 150 °C; (2)lead temperature soldering: reflow: (SMD styles only) (Note 1: 60 second maximum above 183°C): -230 peak °C; (3)storage temperature range, TS: -65 to +150 °C; (4)ESD damage threshold (human body model): 2.0 kV(Stresses exceeding Maximum Ratings may damage the device. Maximum ratings are stress ratings only. Functional operation above the recommended operating conditions is not implied. Extended exposure to stresses above the recommended operating conditions may affect device reliability.).