LV5980MX

www.DataSheet.co.kr Ordering number : ENA1980 Bi-CMOS IC LV5980MX Overview Low power consumption and high efficiency Step-down Switching Regulator LV5980MX is 1ch DC-DC converter with built-in power Pch MOSFET. The recommended operating range is 4.5V to 23V. The maximum current is 3A. The operating current is about 60μA, and low power consumption is achieved. Features and Functions 1ch SBD rectification DC-DC converter IC with built-in power Pch MOSFET Typical value of light load mode current is 60μA 4.5V to 23V Operating input voltage range 100mΩ High-side switch Output voltage adjustable to 1.235V The oscillatory frequency is 370kHz built-in OCP circuit with P-by-P method When P-by-P is generated continuously, it shifts to the HICCUP operation If connect C-HICCUP to GND pin, then latch-off when over current External capacitor Soft-start Under voltage lock-out, thermal shutdown and power good indication Applications DVD/Blu-ray™ drivers and HDD Point of load DC/DC converters LCD monitors and TVs Office supplies Efficiency VIN = 15V, VOUT = 5V Application Circuit Example IN 15V C1 10μF ×2 C3 1μF VIN SW D1 POR EN PG REF R3 C2 10μF ×3 R2 5V L1 10μH OUT 100 90 80 Efficiency -- % LV5980MX FB 70 60 COMP R1 47kΩ C7 C6 C5 C4 SS C-HICCUP 1μF 4.7nF 2.2nF 22nF GND C1: GRM31CB31E106K [murata] C3: C2102JB0J106M [TDK] L1: C6-K5LGA [mitsumi] D1: SBM30-03 [SANYO] 50 40 30 0.1 2 3 5 7 1 2 3 5 7 10 Load current -- mA 2 3 57 100 2 3 5 7 1000...