psrw-series ? psrw-78xxlf ? switching regulator ? s ip3 ? plastic case specification can change without a notice ? we acce pt no liability for any inaccuracy or printing erro rs. page 1/2 psrw-78xxlf all specifications typical at ta=25c, nominal inpu t voltage and full load unless otherwise specified input specifications voltage range wide input (see table) filter capacitors input reflected ripple current 35ma pk-pk output specifications voltage accuracy 3% short circuit protection indefinite (automatic recovery) line regulation 1% load regulation (10% - 100% load) 0.6% ripple and noise (20mhz bandwidth) 75 mv pk-pk temperature coefficient 0.02% / c capacitor load 100 uf general specifications efficiency see table switching frequency 120 - 800 khz humidity 95% rel h reliability calculated mtbf (mil-hdbk-217f) > 4.5 mhrs physical specifications case material non conductive black plastic (ul94v-0 rated) potting material silicon (ul94v-0 rated) weight ~ 1.8 g, typ. environment specifications operating temperature -40 to +60c (for 100%) maximum case temperature 105c storage temperature -40 to +125c cooling free air convection (10mm distance required) emc characteristics radiated emissions en55022 class b conducted emissions en55022 class b esd en61000-4-2 pref. criteria a mainzer stra?e 151?153 d-55299 nackenheim tel. +49 6135 7026-0 fax: +49 6135 931070 www.peak-electronics.de peak@peak-electronics.de t he psrw series is a family of cost effective 1.65~7 .5w single output buck dc-dc converters. these converters are encapsulated in a non conductive black plastic 3-pin sip case, continuous short circ uit protection with automatic restart, good line / load regulation and ultra low quiescence current. devices are filled up with flame retardant resin .input voltages of 9~72, 14~72, 17~72, 20~72, and 36~72 with output vo ltage of 3.3, 5, 6.5, 7.2, 9 , 12 and 15vdc. high performance features in clude high efficiency operation up to 95%. psrw-series 500 ma switching regulator wide input sip3 plastic package non-isolated & non-regulated low quiescence out current short circuit protection low ripple and noise rev.11-2010
psrw-series ? psrw-78xxlf ? switching regulator ? s ip3 ? plastic case specification can change without a notice ? we acce pt no liability for any inaccuracy or printing erro rs. page 2/2 selection guide order # i n p u t v o l t a g e r a n g e ( v d c ) i n p u t c u r r e n t n o l o a d ( m a ) i n p u t c u r r e n t f u l l l o a d ( v i n m i n . ) i n p u t c u r r e n t f u l l l o a d ( v i n m a x . ) o u t p u t v o l t a g e ( v ) o u t p u t c u r r e n t ( m a ) e f f i c i e n c y ( v i n m i n . ) ( % ) e f f i c i e n c y ( v i n m a x . ) ( % ) psrw-783r3lf 9-72 3.0 230 32 3.3 500 82 75 psrw-7805lf 9-72 3.0 327 45 5.0 500 87 80 psrw-786r5lf 9-72 3.0 406 56 6.5 500 91 83 psrw-787r2lf 14-72 3.0 289 61 7.2 500 91 84 PSRW-7809LF 14-72 3.0 358 76 9.0 500 92 86 psrw-7812lf 17-72 3.0 384 97 12 500 94 89 psrw-7815lf 20-72 3.0 404 119 15 500 95 91 if you need other specifications, please enquire. package / pinning / derating peak modelcode datecode 1 2 3 11.68 (0.46) bottom view 1 2 3 10.15 (0.40) 5.08 (0.20) 2.00 (0.08) 2.54 (0.10) 4.00 (0.16) 0.25 (0.01) 7.50 (0.29) 0.50 (0.02) notes : all dimensions are typical in millimeters ( inches ). 1. pin diameter: 0.5 0.05 ( 0.020.002 ) 2. pin pitch tolerance: 0.35 ( 0.014 ) 3. case tolerance: 0.5 ( 0.02 ) specification may change without notice. pin length is typical. 85 100% 75% 50% 25% -40 -20 0 20 40 60 80 100 output power ambient temperature (c) temperature derating graph psrw-78xxlf 1. if vin >50v , in order to protect the converter during power-up, an external capacitor c1=3.3uf/100v is required. 2. c2=100uf(optional) # switching reg. 1 +vin 2 gnd 3 +vout pin connections
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