1 publication date: october 2008 sff00111beb data sheet an78l12m part no. package code no. hsip003-p-0000q maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 2 sff00111beb contents ? overview ?????????????????????????????????????????. 3 ? features ?????????????????????????????????????????.. 3 ? applications ???????????????????????????????????????? 3 ? package ?????????????????????????????????????????. 3 ? type ?????????????...?????????????????????????????. 3 ? block diagram ??????...????????????????????????????????. 4 ? pin descriptions ??????????????????????????????????????. 5 ? absolute maximum ratings ?????????????????????????????????. 6 ? electrical characteristics ??????????????????????????????????. 7 ? electrical characteristics (reference values for design) ?????????????????????. 8 ? technical data ??????????????????????????????????????.. 9 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 3 sff00111beb an78l12m 3-pin positive output voltag e regulator (100 ma type) ? overview the an78lxxm series are 3-pin, fixed positive output type monolithic voltage regulators. stabilized fixed output voltage is obtained from unstable dc input voltage without using any external components. 12 types of fixed output voltage are available; 4 v, 5 v, 6 v, 7 v, 8 v, 9 v, 10 v, 12 v, 15 v, 18 v, 20 v and 24 v. they can be used widely in power circuits with current capacity of up to 100 ma. the an78l12m is the 12 v output voltage type in these series. ? features y no external components y output voltage: 12 v y built-in overcurrent limit circuit y built-in thermal overload protection circuit ? applications y 3-pin positive output voltage regulator (100 ma type) ? package y 3-pin plastic single inline package with heat sink (sip type) ? type y silicon monolithic bipolar ic maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 4 sff00111beb ? block diagram c in : 0.33 f c out : 0.1 f r 1 : 4 k r 2 : 8 k current source starter voltage reference current limiter thermal protection error amp. pass tr 3 2 1 r sc r 2 r 1 + ? input c in c out common output maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 5 sff00111beb ? pin descriptions input supplies power to the internal circuitry input input 3 ground gnd common 2 regulated power output output output 1 description type pin name pin no. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 6 sff00111beb ? absolute maximum ratings *1 35 note unit rating symbol parameter a no. *2 ma 200 i cc supply current 2 *4 c ? 55 to + 150 t stg storage temperature 5 *4 c ? 30 to + 80 t opr operating ambient temperature 4 *3 mw 270 p d power dissipation 3 v v in input voltage 1 note) *1: the values under the condition not exceeding the above absolute maximum ratings and the power dissipation. *2: since current limiting circuit is built in, current value never exceeds the limit. *3: the power dissipation shown is the value at t a = 80 c. when using this ic, refer to the y p d ? t a diagram in the ? technical data and use under the condition not exceeding the allowable value. when t j exceeds 150 c, the internal circuit cuts off the output. *4: except for the powe r dissipation, operating ambient temperature, and storage temperature, all ratings are for t a = 25 c. ? operating supply voltage range note unit range symbol parameter ? v 14.5 to 27 v cc supply voltage range note) the values under the condition not exceeding the above absolute maximum ratings and the power dissipation. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 7 sff00111beb 50 10 ? i out = 1 ma to 40 ma, t j = 25 c 200 100 ? v in = 15 v to 27 v, t j = 25 c *1 mv 100 20 ? i out = 1 ma to 100 ma, t j = 25 c reg l load regulation 4 *1 ma 3.5 2.0 ? t j = 25 c i bias bias current 5 *1 ma 1.0 ? ? v in = 15 v to 27 v, t j = 25 c i bias(in) bias current fluctuation to input 6 *1 ma 0.1 ? ? i out = 1 ma to 40 ma, t j = 25 c i bias(l) bias current fluctuation to load 7 *1 mv 250 120 ? v in = 14.5 v to 27 v, t j = 25 c reg in line regulation 3 v in = 14.5 v to 27 v, i out = 1 ma to 70 ma *1 v 12.6 ? v out output voltage tolerance 11.4 *1 v 12.5 12.0 11.5 t j = 25 c v out output voltage 1 2 ? db ? 50 40 v in = 15 v to 25 v, i out = 40 ma, f = 120 hz rr ripple rejection ratio 8 limits typ unit max note min conditions symbol parameter b no. note) *1: the specified condition t j = 25 c means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. ? electrical characteristics note) unless otherwise specified, t a = 25 c 2 c, v in = 19 v, i out = 40 ma, c in = 0.33 f and c out = 0.1 f, t j = 0 c to 125 c maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 8 sff00111beb ? mv/ c ? ?1.0 ? i out = 5 ma, t j = 0 c to 125 c v out ??? t a output voltage temperature coefficient 4 *1 ma ? 140 ? t j = 25 c i o(short) output short-circuit current 3 *1 v ? 1.7 ? t j = 25 c v dif(min) minimum input/output voltage difference 2 ? v ? 80 ? f = 10 hz to 100 khz vno output noise voltage 1 reference values typ unit max note min conditions symbol parameter b no. note) *1: the specified condition t j = 25 c means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. ? electrical characteristics (r eference values for design) note) unless otherwise specified, t a = 25 c 2 c, v in = 19 v, i out = 40 ma, c in = 0.33 f and c out = 0.1 f, t j = 0 c to 125 c the characteristics listed below are reference values for design of the ic and are not guaranteed by inspection. if a problem does occur related to these characteristics, panasonic will respond in good faith to user concerns. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
an78l12m 9 sff00111beb ? technical data y p d ?t a diagram maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
request for your special attention and precautions in using the technical information and semiconductors described in this book (1) if any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and regulations of the exporting country, especially, those with regard to security export control, must be observed. (2) the technical information described in this book is intended only to show the main characteristics and application circuit examples of the products. no license is granted in and to any intellectual property right or other right owned by panasonic corporation or any other company. therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other company which may arise as a result of the use of technical information described in this book. (3) the products described in this book are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). consult our sales staff in advance for information on the following applications: ? special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the prod- ucts may directly jeopardize life or harm the human body. ? any applications other than the standard applications intended. (4) the products and product specifications described in this book are subject to change without notice for modification and/or im- provement. at the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date product standards in advance to make sure that the latest specifications satisfy your requirements. (5) when designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions (operating power supply voltage and operating environment etc.). especially, please be careful not to exceed the range of absolute maximum rating on the transient state, such as power-on, power-off and mode-switching. otherwise, we will not be liable for any defect which may arise later in your equipment. even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure mode, possible to occur to semiconductor products. measures on the systems such as redundant design, arresting the spread of fire or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products. (6) comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (esd, eos, thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. when using products for which damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages. (7) this book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of our company. 20080805 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
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