1 publication date: may 2007 sdb00153aeb data sheet AN30070A part no. package code no. hzip007-p-0750a 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/
AN30070A 2 sdb00153aeb contents ? overview ????.????????????????????????????????????. 3 ? features ?????????????...???????????????????????????. 3 ? applications ???????????????????????????????????????. 3 ? package ?????????????...???????????????????????????. 3 ? type ???.??.????????????????????????????????????? 3 ? block diagram (application circuit example) ?.???.???...????????????????? 4 ? pin descriptions ???????..??????????????????????????????. 4 ? absolute maximum ratings ????????..?????..??????????......??????? 5 ? operating supply voltage range ????????????????..??????????????. 5 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/
AN30070A 3 sdb00153aeb AN30070A 1.5 a, step-down or inverting dc-dc converter ? overview AN30070A is a dc-dc converter which can be configured for step-dow n or inverting applications w ith a 1.5 a internal switch. the operating input voltage is between 4.5 v to 30 v. ? features y output voltage adjustable with 4% accuracy y internal switching freque ncy is fixed at 150 khz y standby function available with one external transistor y thermal shut-down protection y pulse-by-pulse over-current protection y short circuit protection y soft-start function y under-voltage-lockout function ? applications y for lcd, home theater, dvd player ? package y 7-pin plastic zigzag inline packag e with heat sink (zip 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/
AN30070A 4 sdb00153aeb ? block diagram (application circuit example) l out uvlo ss osc 6 ampo 7 ampn 5 n.c. 4 gnd 3 lx 2 vcc 1 ss ocp 0.76 v c out r upp r low c in c ss schottky diode * c 2 c 1 r 1 v out open ? standby off close ? standby on 11 a note) *: c 2 is optional. e.a. driver. pwm tsd vref ? pin descriptions power transistor emitter, switching node output lx 3 soft-start pin with standby function ? ss 1 error amp negative input negative feedback ampn 7 error amp output ? ampo 6 no connection ? n.c. 5 ground ground gnd 4 power supply input for ic supply vcc 2 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/
AN30070A 5 sdb00153aeb ? absolute maximum ratings *4 c storage temperature 5 *3 w power dissipation 3 *2 a supply current 2 1.5 i cc ? 30 to + 85 t opr ? 50 to + 150 t stg 30.5 v cc *4 c operating ambient temperature 4 1.0 p d note unit rating symbol parameter a no. *1 v supply voltage 1 note) *1: the values under the condition not exceeding the above absolute max imum ratings and the power dissipation. *2: without pd and aso constraint. *3: the power dissipation shown is the value at t a = 85 c for the independent (unmounted) ic package without heat sink. *4: except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for t a = 25 c. 4.5 to 30.0 v cc ? v supply voltage range note unit range symbol parameter ? operating supply voltage range 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, and no license is granted under any intellectual property right or other right owned by our company 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 matsushita electric industrial co., ltd. 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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