LXDC2HL18G-304 Murata

LLXDXDCC2H2HLL-G Series Micro DC-DC converter 1. Features 2 Low EMI noise and small footprint ((5m5mmm ) using inductor-embedded ffererrriitete s sububsstrtratatee PFM/PWM autommatatiicc mmodode e sswiwitctchihingng function SSmmoooothth m modode e trtrananssiienent bt beettweeween n PPFFM M mmodode e aandnd PPWWMM m modode e with low-ripple-voltage PFM mode 2% DC voltage accuracy oovverer f fululll l looadad c cururrreentnt r ranangege Wide inpnputut vvololtatagge e rranangege : : 2.2.33~~5.5.55VV Fixed output voltage : 0.8V 2. 5VV ( (ffacactotorryy s setettitinngg) Internal soft start, oovvererccururrreentnt p prrototecectitioonn 2. Description The LXDC2HL series is a llooww p poowerwer s stetepp-down DCDC converter, which is suitable fforor a a space-limited or a noise-sensitive application. TThehe d deveviicce e utilizes an inductor-embedded ffererrriitete s sububssttrratate,e, a andnd t thehe s sububsstrtraatete eleliimmiinanatteses r radadiiatateed d EEMIMI n noioisse e anand d ccoondnducucttiionon noise efficiently. BByy j jusust t puputtttiingng i innpuputt/o/oututpuput t ccapapacaciitotorrss, , iitt can be used as a LDO replacement. I. Itsts l looww nonoiisse e ffeaeatuturre e anandd e easasyy to to asassseemmblblyy f feaeatturure e asasssurureses r releliiabablle e ppoowwerer s suupply quality. The e e dededevvviiiccce e e wwworororkkksss i i in n n PPPFFFM M M mmmododode e e atatat l l liiighghght t t llloooadadad a a andndnd iiit et et exxxtttenenendsdsds th th the e e bbbatatatteteterrryyy l l liiifffe.e.e. A A Attt h h heeeaaavvvyyy llloooadadad, , , iiitststs c c cononontrtrtrooolll m m mododode e e cchahangngeses t to o PPMMWW mmodode e auauttomomatatiiccalalllyy a annd d iit kt keeeepsps h hiiggh h efefffiicciienenccyy u ussiingng s syyncnchrhroonnououss rrecectitiffyyiingng technology. The device keeps good output vvvooollltatataggge e e acacaccccurururacacacyyy eeevvvenenen iiin n n PPPFFFMMM m m mododode.e.e. It It It k k keeeeeepspsps 2 2 2%%% DC vDC vDC volololtttagagage e e acacaccccurururacacacyyy o o over full current range, a, a, andndnd s s shhhooowwwsss v v verereryyy s s smmmooooooththth m m mododode e e trtrtrananansssiiienenent t t bebebetttwwweeeenenen PPPFFFM M M mmmododode e e aaandndnd PPPWWWMMM mmmododode.e.e. 3. Typical Application Circuit LXDC2HL-G LXDC2HL Enable EN Vout VBAT Vin Vout GND 10uF 1 July. 2015 LXDC2HL-G Series Micro DC-DC converter 4. Mechanical details 4-1 Outline Bottom View Top View Side View Unit: mm Mark Dimension L 2.5 +/- 0.2 W 2.0 +/- 0.2 T 1.0 MAX a 0.85 +/- 0.1 b 0.60 +/- 0.1 c 0.15 +/- 0.15 4-2. Pin Function Pin Symbol I/O Description 1 Vin Input Vin pin supplies current to the LXDC2HL internal regulator. This is the ON/OFF control pin of the device. Connecting this pin to GND keeps the device in shutdown mode. Pulling this pin to Vin enables the device with soft start. 2 EN Input This pin must not be left floating and must be terminated. If this pin is left open, the device may be off around 100mA output. EN=H: Device ON, EN=L: Device OFF Regulated voltage output pin. 3 Vout Output Apply output load between this pin and GND. 4 GND - Ground pin 2 July. 2015