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  bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 ? 13.2v input / 1.0 ? 3.3v output / 6a ? compact surface mount package ? high efficiency means less power dissipation ? remote on/off ? extra wide input voltage range ? ideal for intermediate bus architecture applications description the s/v7ah-06e series are non-isol ated step down dc/dc converters that operate from with an extra wide input range (4.5v to 13. 2v). this allows them to operate from a nominal 5v or 12v source or from an unregulated source such as a bus converter in an inte rmediate bus architecture application. these modules are available in a range of out put voltages from 1.0v to 3.3v. they are offered in a compact ovemolded package rated at 6a. optional lead-form ing provides a vertical mount product for minimal footprint or a surface mount option fo r very low profile. standard features include remote on/off, over current protection and output voltage adjust. these products ma ybe used almost anywhere low-voltage silicon is being employed and a nominal 5 ? 12v source is available. ty pical applications include file servers, routers, line cards, and other computing and communications equipment. part selection output voltage input voltage max. output current max. output power typical efficiency* part number surface mount part number vertical mount 3.3v 4.5 ? 13.2v 6a 19.8w 90% S7AH-06E330 v7ah-06e330 2.5v 4.5 ? 13.2v 6a 15.0w 88% S7AH-06E250 v7ah-06e250 1.8v 4.5 ? 13.2v 6a 10.8w 85% S7AH-06E180 v7ah-06e180 1.5v 4.5 ? 13.2v 6a 9.0w 84% S7AH-06E150 v7ah-06e150 1.2v 4.5 ? 13.2v 6a 7.2w 82% S7AH-06E120 v7ah-06e120 * typical efficiency at vin= 8v (slightly high er for vin = 5v, slightly lower for vin = 12v) input specifications parameter min typ max notes input voltage range 4.5 vdc 13.2 vdc input current (no load) 50ma input current (full load) 5.7a reflected ripple current 60ma rms 150ma pk-pk 120ma rms 250ma pk-pk with a simulated source impedance of 500nh, 5hz to 20 mhz output specifications parameter min typ max notes voltage adjustability 90% 110% output current 0a 6a setpoint accuracy -2.5% +2.5% total regulation -2.0% +2.0% includes line, load and temperature. ripple and noise 100mv pk-pk 50mv rms 0 to 20mhz bandwidth use 1.0uf ceramic and 10uf aluminum on output S7AH-06E / v7ah-06e series preliminary
? 2003 bel fuse inc. specifications subject to change without notice. 060303 corporate far east europe bel fuse inc. bel fuse ltd. bel fuse europe ltd. 206 van vorst street 8f/ 8 luk hop street preston technology management centre jersey city, nj 07302 san po kong marsh lane, suite g7, preston tel 201-432-0463 kowloon, hong kong lancashire, pr1 8ud, u.k. fax 201-432-9542 tel 852-2328-5515 tel 44-1772-556601 www.belfuse.com fax 852-2352-3706 fax 44-1772-888366 www.belfuse.com www.belfuse.com non-isolated dc/dc converters 4.5 ? 13.2v input / 1.0 ? 3.3v output / 6a output specifications (continued) parameter min typ max notes transient response 3.3v / 2.5v 1.8v / 1.5v / 1.2v 200mv / 150us 160mv / 150us max dev / re covery time di/dt = 0.5a/us, vin =8vdc ta = 25 c, 50-100% load change with 220uf external capacitance. general specifications parameter specification switching frequency 400khz typical (fixed) dimensions inches mm 0.7 x 0.65 x 0.32 17.78 x 16.51 x 8.13 weight 6.2 g operating temperature -40 c to 85 c non-operating temperature -40 c to 100 c protection features short circuit over current latching shutdown 130% to 250% max io remote on/off signal low (off) signal high (on) -0.3 to 1.3v 3.5 to 6.5v pin connections pin function 1 on/off 2 vin 3 ground 4 vout 5 trim S7AH-06Exxx v7ah-06exxx bel bel
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 ? 13.2v input / 1.0 ? 3.3v output / 6a derating guidelines output trim equations vnom a b c d 3.3v 168.70 152.80 37.14 90.90 1.8v 74.95 152.80 37.14 90.90 d v v c r b v v a r nom adj trimup adj nom trimdown ? ? = ? ? = equations for calculating the trim resistor (in k ? ) given the desired adjusted voltage (vadj) and the nominal output voltage of the converter (vnom) are shown below. the trim down resistor should be connected between the trim pin and vout . the trim up resistor should be connected between the trim pin and ground. only one of the resistors should be used for any given application.


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