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? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 1 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) MHP8564 single 4 amp point-of-load regulator levels available cots military space description the mhp series are non-isolated point of load switching regulators for high reliability military and space distributed power applications. fully integrated, these include a buck controller, inductor, and input / output capacitors combined in a single package. they operate from an input voltage of +4.5v to +5.5v (see note 1), providing step down power conversion to output voltages as low as 0.5v or lower (see note 2). operating features include output voltage adjust, output current limit, enable, external synchronization and soft start. some models can also be setup in a parallel configuration to increase output current capability and reduce ripple on the input and output supplies. careful design and layout ensure excellent stability, transient response, and low noise operation. packaged in a compact metal case, it operates over the full -55c to +125c temperature range. 16 pin flat pack (MHP8564) important: for the latest information, visit our website http://www.microsemi.com . features ? ? smallest footprint in the space industry ? ? single 4 amp product (note 2) ? ? efficiencies to 87%, see figure 12 ? ? radiation hard to 100k rad tid ? ? se results show no significant output tran sients through an let of 58 mev/(mg/cm 2 ) ? ? optimized for 5v input. consult factor y for higher input voltages. (note 1) ? ? operates down to 4.5 volts input ? ? current mode control ? ? adjustable output voltage between 0.5v and 4v (depends on model, see table 3) (note 2) ? ? parallelable models available, described bot h on this data sheet as well as on the data sheets for the mhp8565p single and the mhp8566 quad. ? ? synchronizable models available (see table 3) ? ? enable function available ? ? soft start capable (see figure 9) ? ? operates at a nominal frequency of 500khz ? ? applications / benefits ? more efficient than competitive pols (see figure 11). ? some models are parallelable msc C lawrence 6 lake street, lawrence, ma 01841 1-800-446-1158 (978) 620-2600 fax: (978) 689-0803 website: www.microsemi.com ?? downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 2 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) table 1 C absolute maximum ratings ( tc = +25c unless otherwise note) parameters / test conditions symbol value unit input voltage (note 1) v in 10 vdc enable input voltage v en 7 vdc sync input voltage v sync 7 vdc approximate weight sip 11 grams operating temperature ra nge, base of package t c -55 to +125 c storage temperature range t stg -65 to +150 c thermal characteristics parameters / test conditions symbol value unit series switch thermal resistance, junction-to-case, sip r ? jc 5 c/w mechanical and packaging ? see figures 5 through 8, and tables 5 through 6. downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 3 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) table 2 C electrical characteristics (see note 5) (t a = -55c to +125c unless otherwise noted) parameters / test conditions symbol value unit min. nom max. minimum input voltage (note 9) vin(min) 4.5 v output voltage accuracy vo = 1.21v vout 1.19 1.23 v post 100k irradiation, 25c vout 1.17 1.24 v line regulation 4.5v < vin < 5.5v vo = 1.21v kvi -0.5 +0.5 % load regulation 1a < iout < 3a kvo -1 +1 % synchronizing range (note 6) 10% < duty cycle < 90%, vsync = 0 to 4.5v, 25c fsync 580 1000 khz sync threshold (25c) (note 6) vsync 1.5 2.2 v current limit vo = 2.5v i cl 4.5 6 a post 100k irradiation, 25c i cl 4.0 a input voltage on enable pin to guarantee shutdown io = 0a (note 4) vshdn 0.13 0.40 0.60 v operating frequency (sync pin grounded) (note 6) f 440 500 560 khz post irradiation, 25c 350 540 ? downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 4 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) table 3 C model number functionality chart ?? model number notes package type output type other functionallty former p/n sip adj fixed note b remote sense note b enable pin parallelable note a output voltage range note 2 note 8 internal compensation MHP8564a$&* 4 amp series ? ? ? note c 0.5 C 4v ? sat8564a-4$f-adj MHP8564f$&* 4 amp series ? ? ? note c 1.2 C 4v ? sat8564f-4$f-x.y MHP8564r$&* 4 amp series ? ? ? note c 1.2 C 4v ? sat8564r-4$f-x.y MHP8564s$&* 4 amp series ? ? ? ? 0.5 C 4v no sat8564s-4$f-adj ?? replace $ with letter to denote required screening level c = cots m = military s = space replace & with lead bend option blank = no lead bend -1 = smt lead bend -2 = lead bend down -3 = lead bend up -4 = space saving smt lead bend replace * with lead finish option c = gold plate a = solder dip over gold plate ? ?? ? ? ? ? ? ? ? ? ? ? ? ?? note a: parallelable devices have a synchronizing pin so that units can be driven out of phase from each other for the purpose of input and output voltage bus ripple reduction. other functions necessary for paralleling are also available ? note b: fixed and remote sense part numbers must be appendaged with fixed value of output voltage. example: MHP8564f$&-1.8 for a 1.8v fixed output. ? note c: sync pin is available. other functions necessary for paralleling are not available. ? downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 5 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) test commercial military space mil-std-883 method cots mil-prf-38534 equivalent element evaluation n/a military space note 11 non-destruct wirebond pull n/a sample 100% 2023 pre-cap visual n/a 100% 100% 2017 temperature cycle n/a 100% 100% 1010 constant acceleration n/a 100% 100% 2001 pind n/a 100% 2020 pre-burn in electrical n/a 100% 100% burn-in n/a 100% (160 hours) 100% (320 hours) 1015 final electrical tests 100% (25c) 100% 100% note 11 hermeticity (fine and gross leak) 100% 100% 100% 1014 x-ray (note 10) n/a n/a yes 2012 external visual sample 100% 100% 2009 notes: 1. most internal components are rated at +10 volts maximum with some as high as 16v, and are therefore properly derated for operation at a nominal input of +5 volts. for use at higher input voltages, please consult factory about your desired operating voltage and your derating requirements for a check of possible component changes. 2. internal series switch is self protected and is rat ed to conduct 4.5 amps minimum. however, limitations on internal components plus the characteristics of pwm operat ion conspire to reduce further the minimum available output current, especially at output voltages above vin/2. minimum available output current is guaranteed to be as specified at output voltage of 2.5 v down to 1.21 v, assuming a clean layout. at output voltages below 1.21 v, maximum output current may reduce by up to 1 amp, depending on actual output voltage, and load regulation may degrade slightly (up to 1%). at 3.3 v output with a 5 v input, output current reduces by 0.5 a from the value specified at 2.5 v out. 3. microsemi does not at this time have a mil-prf- 38534 qualified radiation hardness assurance program. 4. if not used, or when on, enable pin should be pulled up to a logic one (2.5v min, 7v max) through a resistor of no more than 5k ohms. voltage on this pin to disable operation needs to be less than 0.13v. 5. testing is accomplished at an output load of 1a, and at an output voltage of 2.5v and an input of 5v unless otherwise specified. only the specif ications with post radiation limits ar e tested after radiation exposure. 6. synchronizing pin, if available (see model chart) must be grounded if not used. consult factory when contemplating use of frequencies above 580 khz. pin input impedance is 40k ohms. 7. all package outline dimensions are in inches. 8. consult factory for operation at output voltages below 1.0v. also see figure 10. 9. minimum input voltage is guaranteed by line regulation test. 10. performed at a dla approved facility. 11. tested per mil-prf-38534 screening flow. table 4 C screening options downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 6 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) ? figure 1 C basic fixed regulator version vout = vref x (1 + radj / 2490), with vref ~ 1.21 volts + figure 2 C adjustable regulator version + figure 3 C remote sense version + ??? application circuits, 4 amp product 8564f 8564a ? 8564r ? downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 7 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) figure 4 C parallel configuration ? ? ? ? ?? ? ? ? ?????? + ???????? ? ? ?? ??????????? ? ? ? ? ?? ? ? ? ? ? ? ? ? ? ? * when employing only electrolytic output capacitors, t he simplest compensation is a capacitor whose value is 1.5nf times the number of paralleled units. however, a slightly more complex compensation of a resistor (rc) of value 1.6 kohms divided by the number of units in parallel, in series with a capacitor (cc) of value 3900pf times the number of units in parallel, all of which is in parallel with a capacitor (c f ) of value 1000pf times the number of units in parallel, generally leads to smoother output transitions with less turn on overshoot. output capacitors should be as shown in figure 2, one ea cwr29fc227 per regulator. when employing ceramic output capacitors, the simplest compensation is a capacitor whose value is 22nf times the number of units in parallel. this may, however produce an overshoot at turn on. user should check to see that output turn-on, steady state, and transient behavior is acceptable with any chosen compensation scheme. ? sync circuit is not required for parallel operation. if not used, ground all sync pins. application circuits, 4 amp product 5 ? 5 ? en ? en ? * ? 8564s ? 8564s ? c f ? * * * gnd in sat8564p enable in MHP8564s * downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 8 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) figure 5 C standard straight lead package table 5 C normal configurations C 8564a, f, r figure 6 C surface C mount lead-bend table 6 C parallelable configuration C 8564s ?? package outlines, 4 amp product (8564) pin # description 1-4 vin 5-9 gnd 10 shutdown 11 sync 12 adjust/ sense* 13-16 vout * no connection for fixed. adjust pin for adjustable configuration. sense pin for remote sense version. pin # description 1 - 4 vin 5 enable 6 - 9 gnd 10 vcomp 11 sync 12 adjust 13 - 16 vout max. max. downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 mi crosemi corporation page 9 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) figure 7 C right angle lead-bend figure 8 C space saving surface mount lead bend. ?? package outlines, 4 amp product (8564) max. max. downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 micr osemi corporation page 10 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) figure 9 C soft start implementation ? ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??????????? * ? see ? figure ? 4 ? ?? ??????? (rss)(css)(vout) ? ???? rise ? time ? = ?? ??????? 0.7 ? ??? example: ? with ? rss ? = ? 47k ? and ? css ? = ? 15nf, ? rise ? time ? = ? 2.5ms ? ?? package outlines, 4 amp product (8564) * * * * c f gnd in sat8564p enable in MHP8564s ? * ? rh2222 a r ss 2k c ss downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 micr osemi corporation page 11 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) figure 10 C circuit for creating regulated output voltages below 1.21 volts vout = 1.21 C r (k-ohms) example: if r = 0.21k ohms (210 ohms), v out = 1.21 C 0.21 = 1.0v, within the limit s of the tolerances of the components used. ** rad hard zener or other fixed voltage >2v may be used. for any voltage other than 2.5v, resistor values would have to be adjusted accordingly. package outlines, 4 amp product (8564) rx value model rx 8564a 868 ? 8564f n/a 8564r n/a 8564p 1.29k 8564s 1.29k downloaded from: http:///
? ? t4-lds-0117 rev. 15 (10/17/2013) ?2013 micr osemi corporation page 12 of 12 MHP8564 (formerly sat8564 series) (consult table 3 for part number designations) ? ? ? 72.00% 74.00% 76.00% 78.00% 80.00% 82.00% 84.00% 86.00% 88.00% 90.00% 0.50 0.75 1.00 1.25 1.50 1.75 efficiency i out amps MHP8564 typical competitive pol 50.00% 55.00% 60.00% 65.00% 70.00% 75.00% 80.00% 85.00% 90.00% 0.5 a 1.0 a 1.5 a 2.0 a 2.5 a 3.0 a 3.5 a 4.0 a 4.5 a efficiency load amps 1.2 v 1.8 v 2.5 v 3.3 v figure 11 C MHP8564 typical efficiency vs typi cal competitive pol (vin = 5v, vout = 3.3v) figure 12 C MHP8564 typical efficiency curves (vin = 5v) downloaded from: http:///

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