PJ3100series 300ma cmos ldo with enable 1-9 2002/11.rev.a he PJ3100 family is a positive voltage linear regulator developed utilizing cmos technology featured low quiescent current (30a typ), low dropout voltage, and high output voltage accuracy, making them ideal for battery applications. en input connected to cmos has low bias current. the space-saving sot-23 -5l package is attractive for ?pocket? and ?hand held? application. these rugged devices have both thermal shutdown, and current fold-back to prevent device failure under the ?worst? of operating conditions. in application requiring a low noise, regulated supply, place a 1000pf capacitor between bypass and ground. the PJ3100 is stable with an output capacitance of 2.2f or greater. z very low dropout voltage z high accuracy output voltage: 1.5% z low current consumption : typ. 30a, max. 35a z output voltage range :1.5v, 1.8v, 1.9v, 2.2v, 2.5v, 2.7v, 2.8v, 3.3v, 3.5v, 3.6v, and 3.8v z thermal shutdown z low temperature coefficient z battery-powered devices z personal communication devices z home electric/electronic application z pc peripherals z short circuit current fold-back z compact package : sot-23-5 z factory pre-set output voltage z current limiting z input range of 2.6v to 7.0v z guaranteed 300ma output t features sot-23-5 order information typical applications pin: 1. vin 4. byp 2. gnd 5. vout 3. en device operation temperature (ambient) package PJ3100cx -40 ~ +85 o c sot-23-5 application
PJ3100series 300ma cmos ldo with enable 2-9 2002/11.rev.a parameter symbol value unit input voltage v in 7 v output current i out p d / (v in ? vo) ma output voltage v out gnd-0.3v ~ v in +0.3 v junction temperature tj -40 ~ +125 storage temp. tstg -40 ~ +125 parameter maximum unit thermal resistance ( jc ) sot-23-5 260 /w internal power dissipation (p d ) ( t = 100 ) sot-23-5 380 /w maximum junction temperature 150 maximum lead temperature 300 absolute maximum ratings block diagram thermal information
PJ3100series 300ma cmos ldo with enable 3-9 2002/11.rev.a parameter symbol test conditions min typ max unit input voltage v in note 1 7 v output voltage accuracy v out i o =1ma ~ 300ma -1.5 1.5 % load regulation reg load io=1ma ~ 300ma 0.2 1 % v out <=3.0v -0.15 0.03 0.15 % line regulation reg line i o =5ma, vin= v out +1 to v out +2 v out >3.0v -0.3 0.06 0.3 % io=300ma,v out =v o(nom) -2%, v out >=2.5v 300 dropout voltage v dropout io=300ma,v out =v o(nom) -2%, v out <2.5v 800 mv output current io v out > 1.2v 300 ma current limit i limit v out > 1.2v 300 450 ma short circuit current isc v out < 0.95v 150 300 ma quiescent current i q io = 0ma 30 35 a ground pin current i gnd io = 1ma ~ 300ma 30 50 a over temperature shutdown ots 150 over temperature hysteresis oth 30 v out temperature coefficient tc 25 ppm/ f=1khz 60 f=10khz 50 power supply rejection psrr io = 100ma co=2.2f ceramic f=100khz 40 db f=1khz 75 f=10khz 55 power supply rejection psrr io = 100ma co=2.2f ceramic c byp =0.01f f=100khz 30 db co=2.2f 30 output voltage noise en f=10hz to 100khz io=10ma, c byp =0f co=100f 20 vrms co=2.2f 30 output voltage noise en f=10hz to 100khz io=10ma,c byp =0.01f co=100f 20 vrms shutdown supply current i sd v in =5v, v out =0v, v en PJ3100series 300ma cmos ldo with enable 4-9 2002/11.rev.a detailed description the PJ3100 family of cmos regulators contain a pmos pass transistor, voltage reference, error amplifier, over-current protectio n, thermal shutdown, and short circuit protection. the p-channel pass transistor receives data from the error amplifier, over current s hutdown, short output pr otection, and therm al protection circuits. during normal operation, the error amplifier compares the output voltage to a precision reference. over-cu rrent and thermal shutdown circuits become activ e when the junction temperature exceeds 150 , or the current exceeds 300ma. during thermal shutdown, the output voltage remains low. normal operation is restored when the junction temperature drops below 120 . the PJ3100 switches from voltage mode to curr ent mode when the load exceeds the rated ou tput current. this prevents over-stress . the PJ3100 also incorporates cu rrent fold-back to reduce power dissipation when the output is short-circuited. this feature becomes active when the output drops below 1.05v, and reduces the current flow by 65%. full current is restored when the voltage exceeds 0.95v. enable the enable pin normally floats high. when actively, pulled low, the pmos pass transistor shut off, and all internal circuits ar e powered down. in this state, the quiescent current is less than 2a. this pin behaves much like an electronic switch. external capacitor the PJ3100 is stable with an output capacitor to ground of 2.2f or greater. it can keep stable even with higher or poor esr capacitors. a second capacitor is recommended between the input and ground to stabilize vin. the input capacitor should be larger than 0.1uf to have a beneficial effect. all capacitors should be placed in close proximity to the pins. a ?quiet? ground termination is desirable. part number output volt age voltage code package pj3115cx 1.5v a sot-23-5l pj3118cx 1.8v d sot-23-5l pj3119cx 1.9v e sot-23-5l pj3122cx 2.2v h sot-23-5l pj3125cx 2.5v k sot-23-5l pj3127cx 2.7v m sot-23-5l pj3128cx 2.8v n sot-23-5l pj3129cx 2.9v o sot-23-5l pj3130cx 3.0v p sot-23-5l pj3133cx 3.3v s sot-23-5l pj3135cx 3.5v u sot-23-5l pj3136cx 3.6v v sot-23-5l pj3138cx 3.8v x sot-23-5l ordering information
PJ3100series 300ma cmos ldo with enable 5-9 2002/11.rev.a
PJ3100series 300ma cmos ldo with enable 6-9 2002/11.rev.a
PJ3100series 300ma cmos ldo with enable 7-9 2002/11.rev.a
PJ3100series 300ma cmos ldo with enable 8-9 2002/11.rev.a important notice promax-johnton corporation (pj) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to ob tain the latest version of relevant information to verify, be fore placing orders, that the information being relied on is current. a few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. pj integrated circuit products are not designed, intended, authorized, or warranted to be suitable for us e in life-support applications, devices or systems or other critical a pplications. use of pj products in such applications is unders tood to be fully at the risk of the customer. in order to minimize risk associated with the customer?s applications, the customer shoul d provide adequate design and operating safeguards.
PJ3100series 300ma cmos ldo with enable 9-9 2002/11.rev.a sot-23-5l dimensions in millimeters dimensions in inchs symbo ls min nom max min nom max a 1.05 --- 1.35 0.041 --- 0.053 a1 0.05 --- 0.15 0.002 --- 0.006 a2 1.00 1.10 1.20 0.039 0.043 0.047 b 0.25 --- 0.50 0.010 --- 0.020 b1 0.25 0.40 0.45 0.010 0.016 0.018 c 0.08 --- 0.20 0.003 --- 0.008 c1 0.08 0.11 0.15 0.003 0.004 0.006 d 2.70 2.90 3.00 0.106 0.114 0.118 e 2.60 2.80 3.00 0.102 0.110 0.118 e1 1.50 1.60 1.70 0.059 0.063 0.067 l 0.35 0.45 0.55 0.014 0.018 0.022 l1 0.60 ref 0.024 ref e 0.95 bsc 0.037 bsc e1 1.90 bsc 0.075 bsc 0 5 10 0 5 10 1 3 5 7 3 5 7 2 6 8 10 6 8 10
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