m15a series h d l v f a m i l y description the m15a series is a full-featured set of non-isolated, very high- efficiency, board-level power modules. each converter steps a 5 v input down to lower voltages required by core logic, asics, microcontrollers and microprocessors. the high-density (50 w/cu. in.) brick package minimizes the board area required to implement the power conversion. the m15a utilizes bourns switch power's proprietary v 2tm architecture, which provides ultrafast transient response, improved line and load regulation, and very high efficiency. designed specifically for board-level use in applications requiring high reliability, the m15a series features lower losses, higher reliability and a lower seated height than similar units in the market. the initial setpoint accuracy of 0.2 % and measured low-radiated emissions are also superior to most competitive units. it provides a 15-amp output at any of its standard output voltages. beyond the standard output voltages, the series also allows custom outputs from 1.30 volts to 3.50 volts in 100 mv steps. common specifications min nom max units notes input voltage 4.5 5 5.5 vdc 4.75 v startup current 17 a remote enable high = disable 2.4 vdc low = enable 0.4 vdc open=enable e/d current 1 ma output current 0 15 a current limit 16.5 a voltage setpoint accuracy ? %v nom line regulation ?.1 %v nom load regulation ?.3 %v nom ?.2 w/o remote sense voltage trim range -7 +7 %v nom dynamic response 0-100 % load 200 mv ? i/ ? t=3a/? 20 ? 100-0 % load 200 mv ? i/ ? t=3a/? 20 ? temperature regulation ?.02 %v out /? general mtbf 1,000 k hrs bellcore tr332, 25 ? operating temperature 0 55 ? full power, 100 lfm storage temperature -55 125 ? switching frequency 250 khz features 15-amp output current open-frame design 90 % efficiency overtemperature protection short-circuit protection with auto-restart fast transient response remote sense remote enable trim function 50w/in 3 power density low 0.38 " height industry-standard pin-out patents 5,770,940 5,978,195 6,127,814 reliable electronic solutions asia-pacific: europe: the americas: www.bourns.com tel +886- (0)2 25624117 fax +886- (0)2 25624116 tel +41-41 768 5555 fax +41-41 768 5510 tel +1-951 781 5500 fax +1-951 781-5700 specifications are subject to change without notice. cus t o m e r s s h ou l d v e rif y ac t ua l de vi ce pe rf o rm a n ce in th e ir spec ifi c app li ca ti o n s . obsolete
m15a series h d l v f a m i l y 2.75 (69.9) j2-1 gnd j2-2 +sense j2-3 v out j2-4 v out j2-5 v out j2-6 v out j2-7 gnd j2-8 gnd j1-1 remote enable j1-2 nc (leave open) j1-3 trim j1-4 gnd j1-5 gnd j1-6 v in j1-7 v in j1-8 v in inches (mm) 0.xx 0.01 inches 0.xxx 0.005 inches 0.38 (9.65) max 0.23 (5.8) 0.025 (0.64) square pins 0.1 (2.54) x3 0.1 (2.54) 0.1 (2.54) 0.1 (2.54) 0.1 (2.54) 1.6 (40.64) 0.1 (2.54) 0.68 (17.2) 0.1 (2.54) 0.13 (3.3) 0.8 (20.3) 0.1 (2.54) 0.6 (15.24) bottom view j1 j2 electrical specifications nominal output output noise efficiency input voltage current (mv pp) (%) (v) (v) (a) typ typ m15a-5s3.45 5 3.45 15 100 90 m15a-5s3.3 5 3.3 15 100 90 m15a-5s2.8 5 2.8 15 100 m15a-5s2.6 5 2.6 15 100 m15a-5s2.5 5 2.5 15 100 m15a-5s2.2 5 2.2 15 100 m15a-5s2 5 2 15 100 m15a-5s1.9 5 1.9 15 100 m15a-5s1.8 5 1.8 15 100 m15a-5s1.5 5 1.5 15 100 specifications are subject to change without notice. customers should verify actual device performance in their specific applications. rev. 01/05 obsolete
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