LXDC32DAAC-280 Murata

LXDC32D series Micro DCDC converter 1. Features Low EMI noise and small footprint using inductor-imbedded ferrite substrate 2ch type DCDC converter High efficiency using synchronous rectifier technology at 3MHz operation PFM/PWM automatic mode switching function Smooth mode transition between PFM mode and PWM mode with low-ripple-voltage PFM mode 2% DC voltage accuracy over full load current range (Vout=1.2~4V) Maximum Load Current: 600mA (depends on output voltage) Fixed output voltage: 0.8V 4V (factory setting, 50mV step) Internal soft start, overcurrent protection 2. Description The LXDC32D series is a low power step-down DC-DC converter suitable for space-limited or noise-sensitive applications. The device utilizes an inductor-embedded ferrite substrate that reduces radiated EMI noise and conduction noise. By adding output capacitors, it can be used as an LDO replacement. Its low noise and easy-to-assemble features assure reliable power supply quality. The device works in PFM mode at light load for extended battery life. At heavy load, it changes to PMW mode automatically and maintains high efficiency using synchronous rectifying technology. The device provides good output voltage accuracy even in PFM mode. It maintains 2% DC voltage accuracy over the full current range (0-600mA, depends on output voltage), and shows very smooth mode transition between PFM mode and PWM mode. 3. Typical Application Circuit LXDC32D Enable1 EN1 Vout1 Vout1 Enable2 EN2 Vout2 Vout2 Vin Vin GND Cout1 Cout2 1 Feb. 2016 LXDC32D series Micro DCDC converter 4Mechanical Details 4-1 Outline Top View Side View Bottom View T Unit: mm Mark Dimension Mark Dimension L 3.2 0.2 g 0.5 0.1 W 2.5 0.2 h 0.15 + 0.2 / - 0.15 T 1.2 MAX i 0.7 0.1 a 0.4 0.1 j 0.3 0.1 b 0.6 0.1 k 0.3 0.1 c 0.4 0.1 l 0.9 0.1 d 0.15 + 0.2/ - 0.15 m 0.4 0.1 e 0.45 0.1 n 1.05 0.1 f 0.4 0.1 2 Feb. 2016