LV5841M

Ordering number : ENA1643 www.DataSheet4U.com Bi-CMOS IC LV5841M Overview Step-down Switching Regulator LV5841M is a chopper type 1ch step-down regulator incorporating the drive transistor. For the HI side switch, the 0.06Ω resistance is incorporated, enabling driving of the output up to 4.5 A with high efficiency. Being of a current mode control type, this product ensures satisfactory load current response and simple phase compensation. The fold-back function is provided as the protection in case of output over-current. This function reduces the frequency in case of over-current and thus reduce the inductor current. The overheat protection function is also provided. For the package, MFP8 without exposed-PAD has been employed.. Functions 4.5A 1ch step-down switching regulator Input Voltage Range (5-18V) High efficiency: Max efficiency over 90% Compact package: MFP8 (225mil) (No backside heat sink) Current Mode Operation Low impedance Switch: High-Side Switch: 60mΩ Soft start time 3.5ms Over-current protection Specifications Parameter Input voltage SW pin voltage EN pin voltage FB,COMP pin Maximum Ratings at Ta = 25°C Symbol VIN-abs VSW-abs VEN-abs Pd max Tj max Topr Tstg With specified board * Conditions Ratings -0.3 to 20 -0.3 to VIN+0.3 VIN-abs -0.3 to 7 1.0 150 -30 to 85 -40 to 150 Unit V V V V W °C °C °C Allowable power dissipation Junction temperature Operating temperature Storage temperature * Specified board: 31.0mm × 34.0mm ×1.7mm, glass e...