ZLDO1117 issue 1 1 of 12 june 2009 www.diodes.com ? diodes incorporated 1a low dropout positive regulator 1.2v, 1.5v, 1.8v, 2.5v, 3.3v, 5.0v and adjustable outputs description pin assignments ZLDO1117 is a low dropout positive adjustable or fixed- mode regulator with 1a output current capability. the ZLDO1117 has a 2% tolerance across the industrial temperature range and is guaranteed to have lower than 1.2v dropout at full load current making it ideal to provide well-regulated outputs of 1.2v to 5.0v with input supply voltages up to 18v. the ZLDO1117 is ideally suited to provide well-regulated supplies for low voltage ic applications such as high- speed bus termination and low current 3.3v logic supply across the whole industrial temperature range. sot223 to252 features ? 1.2v maximum dropout at full load current ? 2% tolerance over temperature, line and load variations ? fast transient response ? output current limiting ? built-in thermal shutdown ? good noise rejection ? suitable for use with mlcc capacitors ? -40 to 125c junction temperature range ? available in ?green? molding compound (no br, sb) with lead free finish/rohs compliant (note 1) typical application circuit 1a i/o ? 1.8v core regulator 3.3v 4.7f mlcc ZLDO1117-18 1.8v 4.7f mlcc
ZLDO1117 issue 1 2 of 12 june 2009 www.diodes.com ? diodes incorporated absolute maximum ratings parameter ..................................................................................................................... ................................................... rating input supply voltage (v in ) relative to gnd ............................................................................................................. .. -0.3 to 18v junction temperature (t j ) 3 ............................................................................................................................. ................. 150c power dissi pation ............................................................................................................ ................................ see so a curve storage temperature (t st) ............................................................................................................................... .....-65 to +150c 0 0.2 0.4 0.6 0.8 1 1.2 0 5 10 15 20 25 v in - v out (v) i load (a) soa safe operation area (soa) curve these are stress ratings only. operation outside the absolute maximum ratings may cause device failure. operation at the absolute maximum rating for extended periods may reduce device reliability. semiconductor devices are esd sensitive and may be damaged by exposure to esd events. suitable esd precautions should be taken when handling and transporting these devices. human body m odel: ................................................. 4kv machine model: ..................................................... 400v recommended operating conditions parameter min max unit v in input voltage 2.7 6 18 v i o output current 0.01 1 a t j operating junction temperature range -40 125 c package thermal data thermal resistance package unit junction-to-ambient, ja sot223-3l 4 to252-3l 5 107 73 c/w junction-to-case, jc sot223-3l 4 to252-3l 5 16 12 c/w notes: 3. ZLDO1117 contains an internal thermal limiting circui t that is designed to protect t he regulator in the event that the maximum junction temperature exceeded. when acti vated, typically at 150c, the regulator output switches off and then back on as the die cools. 4. test condition for sot223-3l: ta = 27c, no air flow, device mounted on 2?x2? polyimide pcb, 2 oz copper, 5.6mmx5.6mm pad. 5. test condition for to252-3l: ta = 27c, no air flow , device mounted on 2?x2? polyimide pcb, 1 oz copper, 2cmx2cm pad. 6. ensures correct operation without entering dropout. device will continue to operate below this minimum input voltage under dropout conditions.
ZLDO1117 issue 1 3 of 12 june 2009 www.diodes.com ? diodes incorporated electrical characteristics (under operating conditions) parameter conditions t a min typ. max unit reference voltage ZLDO1117-adj (v in -v out ) = 2v, i o = 10ma 25 1.238 1.250 1.263 v v out +1.4v < v in < 10v, 10ma < i o < 1a ft 1.225 1.275 output voltage ZLDO1117-1.2 i o = 10ma, v in = 3.2v 25 1.188 1.200 1.212 v 0 < i o < 1a, 2.6v < v in < 12v ft 1.176 1.224 ZLDO1117-1.5 i o = 10ma, v in = 3.5v 25 1.485 1.500 1.515 v 0 < i o < 1a, 2.9v < v in < 12v ft 1.470 1.530 ZLDO1117-1.8 i o = 10ma, v in = 3.8v 25 1.782 1.800 1.818 v 0 < i o < 1a, 3.2v < v in < 12v ft 1.764 1.836 ZLDO1117-2.5 i o = 10ma, v in = 4.5v 25 2.475 2.500 2.525 v 0 < i o < 1a, 3.9v < v in < 12v ft 2.450 2.550 ZLDO1117-3.3 i o = 10ma, v in = 5.3v 25 3.267 3.300 3.333 v 0 < i o < 1a, 4.7v < v in < 12v ft 3.235 3.365 ZLDO1117-5.0 i o = 10ma, v in = 7v 25 4.95 5.000 5.05 v 0 < i o < 1a, 6.4v < v in < 12v ft 4.900 5.100 line regulation ZLDO1117-adj i o = 10ma, v out +1.5vZLDO1117-xx i o = 0ma, v out +1.5vZLDO1117-adj v in =3.3v,v adj =0, 10maZLDO1117-1.2 v in =2.7v, 10ma < i o < 1a, (note 7, 8) 25 0.2 % ft 0.4 ZLDO1117-1.5 v in = 3v, 0 < i o < 1a, (note 7, 8) 25 3 mv ft 6 ZLDO1117-1.8 v in = 3.3v, 0 < i o < 1a, (note 7, 8) 25 4 mv ft 8 ZLDO1117-2.5 v in = 4v, 0 < i o < 1a, (note 7, 8) 25 5 mv ft 10 ZLDO1117-3.3 v in = 4.8v, 0 < i o < 1a, (note 7, 8) 25 6.6 mv ft 13 ZLDO1117-5.0 v in = 6.5v, 0 < i o < 1a, (note 7, 8) 25 10 mv ft 20 dropout voltage (v in -v out ) ZLDO1117- adj/1.2/1.5/1.8 /2.5/3.3/5.0 i o = 1a, v out = 1%v out 25 1.11 1.2 v 0 ~ 125 1.3 ft 1.35 current limit ZLDO1117- adj/1.2/1.5/1.8 /2.5/3.3/5.0 (v in -v out ) = 5v 25 a ft 1. 1 minimum load current (note 8) ZLDO1117-adj -40c< t j < 125c 2 5 ma quiescent current ZLDO1117-xx vin < 18v, i o = 0ma ft 4 10 ma gnd current ZLDO1117-xx v in = 7v ft 35 120 a thermal regulation 30ms pulse 25 0.1 %/w ripple rejection f = 120hz, c out = 25uf tantalum, i out = 100ma, ZLDO1117-xxx v in = v out +3v 25 60 80 db temperature stability i o = 10ma 0.5 % notes: 7. see thermal regulation specifications for changes in output voltage due to heating effects. line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. load regulation is measured at the output lead = 1/18? from the package. 8. line and load regulation are guaranteed up to the maximum power dissipation of 15w. power dissipation is determined by the d ifference between input and output differential and the output current. guaranteed maximum power dissipation will not be available over the full input/output rang e.
ZLDO1117 issue 1 4 of 12 june 2009 www.diodes.com ? diodes incorporated typical characteristics -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 -40 -25 -10 5 20 35 50 65 80 95 110 125 temperature (c) ? vout (%) adjustable version i load = 10ma -0.01 0 0.01 0.02 0.03 0.04 0.05 0.06 -50 -25 0 25 50 75 100 125 temperature (c) line regulation (%) v out +1.5v |