LXDC55KAAA-205 Micro DC-DC converter 1. Features Small footprint Buck converter for up to 3A output current application Low EMI noise using an inductor-embedded ferrite substrate Input voltage range : 2.7 to 5.5V User Adjustable Output voltage : 0.8 to 3.6V PWM/PFM mode Powergood function Over current protection, Over temperature protection 2. Mechanical Details Unit:mm Mark Dimension Mark Dimension L 5.0 +/- 0.2 e 1.1 W 5.7 +/- 0.2 f 0.6 T 2.1 MAX g 0.35 a 0.25 h 0.6 b 0.7 i 0.35 c 0.4 j 1.0 d 0.8 1 April 2013 LXDC55KAAA-205 Micro DC-DC converter Pin configuration Pin No. Symbol I/O Description ON/OFF control pin 1 EN Input H: Enable, L: Disable 4,5 Vin Input Power supply voltage Input pin 6,12 GND - GND pin 7,8 Vout Output Regulated voltage output pin Power good output pin 10 PG Output H: Normal Operation External resistor connection pin for output 11 FB Input voltage setting No connection 2,3,9,13,14 NC - This pin can be connected to any other pins 2 April 2013