electronics electronics sat8601 linear voltage regulator, 3a & 5a, ultra- low- dropout, (uldo) features mo-078 package ultra low dropout voltage ? 300mv @ 3.0a compatible with industr y standard iruh series fixed and adjustable versions shutdown pin for output control thermal shutdown @ 150 deg. c optimized for operation at +3.3vin or +5vin description the sat8601 is a military qualified, ultra lo w dropout linear regulator designed for high reliability applications. assembled in a he rmetic mo-078 package, the sat8601 provides an ultra low drop out voltage of 300mv @ 3a and 450mv at 5a. the sat8601 is optimized for operation at +5v input or +3.3v input. the internal capacitors used in the manufacturing of this device are in accordance with mil-prf-123 or mil-prf-55365 . the components are de-rated per satcon?s class-k requirements. block diagram adjustable version fixed output version satcon electronics 1 sat8601 rev 12, 4/17/2007 drive shdn fb gnd 3 v out 4 5 adj 1 v in 2 user defined resistor for desired v out drive shdn fb gnd 3 v out 4 5 n/c 1 v in 2
absolute maximum ratings (exceeding maximum ratings may damage the device) symbol parameter value unit -3 (3a version) -5 (5a version) vin dc input voltage vin-vground 10.0 10.0 v io output current 6.5 9 a pd power dissipation tcase=25deg.c 25 25 w rthjc thermal resistance, junction to case 4.0 4.0 o c/w tstg storage temperature -65 to +150 -65 to +150 o c tj operating temperature ra nge -55 to +125 -55 to +125 o c tsold maximum soldering temperature, 10sec 300 300 o c electrical characteristics (ta= -55oc to +125oc) symbol parameter test conditions -3 (3a version) -5 (5a version) units min typ max min typ max vout output voltage accuracy vin=5.0v, vin= 3.3v, iout=2.0a 2.0 2.0 % vin (+3.3) input voltage range: +3.3v, (note 3) iout=2.0a 2.8 3.6 2.8 3.6 v vin (+5.0) input voltage range: +5.0v (note 3) iout=4.0a 4.5 5.5 4.5 5.5 v vdrop dropout voltage iout=2.5a, vout=+2.5v. (note 3) 0.35 0.45 v isc current limit vin=5.0v, 3.0v vin 3.6v 3.5 5.5 a ripple rejection f=120hz, iout=50ma 65 65 db ishdn shutdown source current vshdn=5.0v 200 200 ua vshdn shutdown input threshold vin=5.0, vout < 0.5v. (note 2) 1.0 1.6 2.0 1.0 1.6 2.0 v notes : 1. shutdown pin voltage must be > 2.0v to initiate output inhibit. pin should be grounded if not used. 2. voltage dropout is dependent on a minimum input voltage of +2.8v. specification applies only to output voltages of +2.5v or greater. output voltages below 2.5v will have a greater minimum dropout requirement. 3. the sat8601 is optimized for specific input voltage ranges. the ?53 will have peak performance at +2.8v to +3.6v. the ?55 will have peak performance at +4.5v to +5.5v. input voltages outside of this range can affect short-circuit current, load current capability and create electri cal overstress to internal components. satcon electronics 2 sat8601 web rev 12
application circuit v out = v ref x (1+r adj /1000), with vref~1.265 volts adjustable 3/5 amp regulator basic fixed 3/5 amp regulator satcon electronics 3 sat8601 web rev 12
package outline: mo-078 package pin assignments pin no pin name pin description 1 vin input voltage 2 gnd ground 3 vout output voltage 4 shdn shutdown pin. output reset occurs when vshdn> 1.6v 5 adjust/ n/c adjust pin for adjustable output , not connected for fixed version. ordering information* : sat8601 -33 k t -3.3 product number current designation screening level package type available output voltage options - 33 = 3a, +3.3v version blank= satcon commercial screen t = mo-078 - adj = adjustable sat8601 - 35 = 3a, +5v version h= class h compliant - 1.3 = +1.3v fixed - 53 = 5a, +3.3v version k= class k compliant -1.5 = +1.5v fixed - 55 = 5a, +5v version em = eng. model - 1.8 = +1.8v fixed - 2.5 = +2.5v fixed - 3.3 = +3.3v fixed electronics electronics 165 cedar hill st., marlborough, massachusetts 01752, usa tel: 508-485-6350 fax: 508-485-5168 e-mail: electronics.sales@satcon.com for more information about satcon power products, visit us at: www.satconelectronics.com specifications in this document are s ubject to change without notice. satcon electronics 4 sat8601 web rev 12
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