LXDC2SCAAB-352 Micro DC-DC converter 1. Features Buck-Boost DC-DC converter Low EMI noise and small footprint using inductor-embedded ferrite substrate High efficiency using synchronous rectifier technology at 2.5MHz operation Wide Input voltage range : 2.8~5.0V Output voltage:3.3V Maximum load current: 1,200mA Automatic transition between buck mode and boost mode Fully protected for short-circuit, over-temperature, and under voltage 2. Description The LXDC2SCAAB-352 is a buck-boost DC-DC converter, which is suitable for a space-limited or a noise-sensitive portable application. The device utilizes an inductor-embedded ferrite substrate, and the substrate eliminates radiated EMI noise and conduction noise efficiently. The LXDC2SCAAB-352 has automatic buck-boost operations to prolong Li-ion battery life and efficiency. By switching automatically between the buck-mode operation (stepping down the voltage) when the battery is fully charged and the boost-mode operation (stepping up the voltage) as the battery is discharged, the LXDC2SCAAB-352 maximizes the overall operating voltage from the lithium battery. 3. Typical Application Circuit 1 Sep, 2015 LXDC2SCAAB-352 Micro DC-DC converter 4 Mechanical details 4-1 Outline Unitmm Symbol Dimension Symbol Dimension L 2.8 0.2 d 0.5 0.1 W e 2.9 0.2 0.54 0.1 T 1.15MAX f 0.4 0.1 g 0.5 0.1 a h 0.26 0.2 0.39 0.1 b 0.49 0.1 i 0.36 0.2 c 0.4 0.1 j 0.44 0.1 4-2 Pin Function Pin No, Symbol I/O Description Mode=H: auto PFM mode 1 MODE Input Mode=L: Forced PWM mode 2,5,6,9 GND Ground pin 3,4 Vout Output Regulated voltage output pin. 7 EN Input ON/OFF control pin EN=H: Device ON, EN=L: Device OFF 8 Vin Input Vin pin supplies current to the LXDC2SC internal regulator. 2 Sep, 2015