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the information in this document is subject to change without notice. before using this document, please confirm that this is the latest version. not all products and/or types are available in every country. please check with an nec electronics sales representative for availability and additional information. 2000 bipolar analog integrated circuit pc24a00 series three terminal low dropout voltage regulator data sheet document no. g14632ej4v0ds00 (4th edition) date published march 2003 ns cp(k) printed in japan the mark shows major revised points. description the pc24a00 series is a low dropout voltage three terminal regulator that has realized a minimum voltage differential between the i/o of no more than 1 v when the output current is 2 a through the employment of a pnp transistor at the output stage. due to its ability to achieve a greater reduction in the power loss compared with conventional three-terminal regulators, the pc24a00 series is ideal for use as the secondary side smoothing circuit of a power supply. features ? output current in excess of 2 a ? high accuracy output voltage: ? v o = 2% max. (t j = 25c, i o = 1 a) ? low dropout voltage: v dif = 1 v max. (i o = 2 a) ? on-chip thermal shut down circuit, over-current protection circuit and safe operating area protection circuit ordering information part number package output voltage pc24a05hf 3-pin plastic sip (mp-45g) (isolated to-220) 5 v pc24a12hf 3-pin plastic sip (mp-45g) (isolated to-220) 12 v pc24a15hf 3-pin plastic sip (mp-45g) (isolated to-220) 15 v pin configuration (marking side) 3-pin plastic sip (mp-45g) pc24a05hf, 24a12hf, 24a15hf 12 1: input 2: gnd 3: output 3
data sheet g14632ej4v0ds 2 pc24a00 series block diagram start-up circuit reference voltage thermal shut down error amp. drive circuit safe operating area protection output gnd input over-current protection absolute maximum ratings (t a = 25c, unless otherwise specified) parameter symbol rating unit input voltage v in ? 0.3 to +36 v internal power dissipation p t 20 note w operating ambient temperature t a ? 20 to +85 c operating junction temperature t j ? 20 to +150 c storage temperature t stg ? 55 to +150 c thermal resistance (junction to case) r th(j-c) 5c/w thermal resistance (junction to ambient) r th(j-a) 65 c/w note internally limited. when the operating junction temperature rises up to 150 c, the internal circuit shuts down the output voltage. caution product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. that is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded.
data sheet g14632ej4v0ds 3 pc24a00 series typical connection + d 2 d 1 c in c out input output pc24a00 series c in : 0.1 f or higher. set this value according to the length of the line between the regulator and input pin. be sure to connect c in to prevent parasitic oscillation. use of a film capacitor or other capacitor with excellent voltage and temperature characteristics is recommended. if using a laminated ceramic capacitor, it is necessary to ensure that c in is 0.1 f or higher for the voltage and temperature range to be used. c out : 47 f or higher. be sure to connect c out to prevent oscillation and improve excessive load regulation. place c in and c out as close as possible to the ic pins (within 2 cm). also, use an electrolytic capacitor with low impedance characteristics if considering use at sub-zero temperatures. d 1 : if the output pin has a higher voltage than the input pin, connect a diode. d 2 : if the output pin has a lower voltage than the gnd pin, connect a schottky barrier diode. recommended operating conditions parameter symbol condition min. typ. max. unit input voltage v in pc24a05hf 6 9 15 v pc24a12hf 13 18 22 v pc24a15hf 16 22 25 v output current i o all 0 2 a operating junction temperature t j all ? 20 +125 c caution the recommended operating range may be exceeded without causing any problems provided that the absolute maximum ratings are not exceeded. however, if the device is operated in a way that exceeds the recommended operating conditions, the margin between the actual conditions of use and the absolute maximum ratings is small, and therefore thorough evaluation is necessary. the recommended operating conditions do not imply that the device can be used with all values at their maximum values.
data sheet g14632ej4v0ds 4 pc24a00 series electrical characteristics pc24a05 (t j = 25c, v in = 9 v, i o = 1 a, unless otherwise specified) parameter symbol conditions min. typ. max. unit output voltage v o 4.9 5.0 5.1 v 0 c t j 125 c, 4.85 5.15 v 6 v v in 15 v, 5 ma i o 2 a line regulation reg in 6 v v in 15 v 6 50 mv load regulation reg l 5 ma i o 2 a 3 50 mv quiescent current i bias i o = 0 a 3 5.0 ma i o = 2 a 15 30 ma quiescent current change ? i bias 6 v v in 15 v, i o = 2 a 20 ma output noise voltage v n 10 hz f 100 khz 150 vr.m.s. ripple rejection r?r f = 120 hz, 6.5 v v in 16.5 v 50 60 db dropout voltage v dif 0 c t j 125 c, i o = 2 a 1.0 v peak output current i opeak v in = 9 v 2.8 3.5 4.2 a short circuit current i oshort v in = 15 v 1.3 a temperature coefficient of ? v o / ? t0 c t j 125 c, i o = 5 ma 0.5 mv/ c output voltage pc24a12 (t j = 25c, v in = 18 v, i o = 1 a, unless otherwise specified) parameter symbol conditions min. typ. max. unit output voltage v o 11.75 12.0 12.25 v 0 c t j 125 c, 11.65 12.35 v 13 v v in 22 v, 5 ma i o 2 a line regulation reg in 13 v v in 22 v 12 100 mv load regulation reg l 5 ma i o 2 a 6 100 mv quiescent current i bias i o = 0 a 3 5.0 ma i o = 2 a 15 30 ma quiescent current change ? i bias 13 v v in 22 v, i o = 2 a 20 ma output noise voltage v n 10 hz f 100 khz 220 vr.m.s. ripple rejection r?r f = 120 hz, 13.5 v v in 23.5 v 43 50 db dropout voltage v dif 0 c t j 125 c, i o = 2 a 1.0 v peak output current i opeak v in = 18 v 2.8 3.5 4.2 a short circuit current i oshort v in = 15 v 1.4 a temperature coefficient of ? v o / ? t0 c t j 125 c, i o = 5 ma 1.0 mv/ c output voltage
data sheet g14632ej4v0ds 5 pc24a00 series pc24a15 (t j = 25c, v in = 22 v, i o = 1 a, unless otherwise specified) parameter symbol conditions min. typ. max. unit output voltage v o 14.7 15.0 15.3 v 0 c t j 125 c, 14.55 15.45 v 16 v v in 25 v, 5 ma i o 2 a line regulation reg in 17 v v in 25 v 18 150 mv load regulation reg l 5 ma i o 2 a 10 150 mv quiescent current i bias i o = 0 a 3 5.0 ma i o = 2 a 15 30 ma quiescent current change ? i bias 17 v v in 25 v, i o = 2 a 20 ma output noise voltage v n 10 hz f 100 khz 260 vr.m.s. ripple rejection r?r f = 120 hz, 17 v v in 27 v 40 48 db dropout voltage v dif 0 c t j 125 c, i o = 2 a 1.0 v peak output current i opeak v in = 22 v 2.8 3.5 4.2 a short circuit current i oshort v in = 16 v 1.4 a temperature coefficient of ? v o / ? t0 c t j 125 c, i o = 5 ma 1.6 mv/ c output voltage
data sheet g14632ej4v0ds 6 pc24a00 series typical characteristics (reference values) 0 50 100 150 ? 50 0 50 100 150 0 5 10 15 20 0 5 10 15 20 0 5 10 15 20 012345678 20 15 10 5 0 150 100 50 0 ? 50 ? 100 ? 150 ? 200 6 5 4 3 2 1 0 20 15 10 5 0 5 4 3 2 1 0 250 200 150 100 50 0 p t vs. t a v o vs. t j v o vs. v in i bias vs. v in i opeak vs. (v in - v o ) p t - total power dissipation - w v o - output voltage deviation - mv v o - output voltage - v v o - output voltage - v i bias - quiescent current - ma i opeak - peak output current - a t a - operating ambient temperature - ? ct j - operating junction temperature - ? c v in - input voltage - v v in - input voltage - v v in - input voltage - v (v in -v o ) - input/output voltage differential - v 125 ? c t j = 0 ? c 1.92 with infinite heatsink without heatsink 85 ? c i o = 5 ma pc24a15 pc24a12 pc24a05 t j = 25 ? c i o = 5 ma 1 a 2 a t j = 25 ? c i o = 2 a pc24a15 pc24a12 pc24a05 pc24a12 pc24a05 t j = 25 ? c i o = 2 a pc24a15 v o vs. v in ( pc24a05) 25 ? c ? ?
data sheet g14632ej4v0ds 7 pc24a00 series 0 0 0.5 1.0 1.5 2.0 1.2 1.0 0.8 0.6 0.4 0.2 v dif vs. i o v dif - dropout voltage - v i o - output current - a vo = 2% 10 100 1 k 10 k 100 k 80 70 60 50 40 30 20 10 0 r r vs. f r r - ripple rejection - db f - frequency - hz t j = 125 ? c 25 ? c t j = 25 ? c i o = 1 a pc24a15 pc24a12 pc24a05 ?
data sheet g14632ej4v0ds 8 pc24a00 series package drawing (unit: mm) d 17.0 0.3 3pin plastic sip (mp-45g) note each lead centerline is located within 0.25 mm of its true position (t.p.) at maximum material condition. item millimeters p3hf-254b-4 g 0.25 h 2.54 (t.p.) a 10.0 0.2 i 5.0 0.3 u 2.4 0.5 v y 8.9 0.7 z 1.30 0.2 j k l 8.5 0.2 b 7.0 0.2 c 1.50 0.2 e f 0.75 0.10 m 8.5 0.2 n p 2.8 0.2 3.3 0.2 2.46 0.2 5.0 0.2 4.5 0.2 0.65 0.10 13 2 m a b e i d l m k y j h c fg z n p u v
data sheet g14632ej4v0ds 9 pc24a00 series recommended soldering conditions when soldering this product, it is highly recommended to observe the conditions as shown below. if other soldering processes are used, of if the soldering is performed under different conditions, please make sure to consult with our sales offices. for more details, refer to below our document. "semiconductor device mounting technology manual (c10535e)" type of through-hole device pc24a05hf, pc24a12hf, pc24a15hf: 3-pin plastic slp (mp-45g) (isolated to-220) process conditions wave soldering (only to leads) solder temperature: 260c or below, flow time: 10 seconds or less. caution apply wave soldering only to the pins and be careful not to bring solder into direct contact with the package.
data sheet g14632ej4v0ds 10 pc24a00 series caution on use ? ? ? ? the pc24a00 series, if the output is short-circuited at v in 20 v, the output may not be restored after the short-circuit is cancelled. in this case, restore the output by lowering and then reapplying v in . ? ? ? ? if a lower than recommended input voltage is used in the pc24a00 series, a large circuit current will flow due to the saturation of the output stage transistor (refer to the i bias vs. v in curves in typical characteristics). the capacitance for the input side power supply therefore needs to be only enough to enable the current to flow in this circuit at startup. note also that a resistor cannot be inserted at the gnd pin to adjust the output voltage.
pc24a00 series reference documents quality grades on nec semiconductor devices (c11531e) semiconductor device mounting technology manual (c10535e) semiconductors selection guide (x10679e) semiconductor selection guide -products and packages- (x13769x) the information in this document is current as of march, 2003. the information is subject to change without notice. for actual design-in, refer to the latest publications of nec electronics data sheets or data books, etc., for the most up-to-date specifications of nec electronics products. not all products and/or types are available in every country. please check with an nec electronics sales representative for availability and additional information. no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec electronics. nec electronics assumes no responsibility for any errors that may appear in this document. nec electronics does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of nec electronics products listed in this document or any other liability arising from the use of such products. no license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec electronics or others. descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. the incorporation of these circuits, software and information in the design of a customer's equipment shall be done under the full responsibility of the customer. nec electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. while nec electronics endeavors to enhance the quality, reliability and safety of nec electronics products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. to minimize risks of damage to property or injury (including death) to persons arising from defects in nec electronics products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. nec electronics products are classified into the following three quality grades: "standard", "special" and "specific". the "specific" quality grade applies only to nec electronics products developed based on a customer- designated "quality assurance program" for a specific application. the recommended applications of an nec electronics product depend on its quality grade, as indicated below. customers must check the quality grade of each nec electronics product before using it in a particular application. "standard": computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots. "special": transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support). "specific": aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. the quality grade of nec electronics products is "standard" unless otherwise expressly specified in nec electronics data sheets or data books, etc. if customers wish to use nec electronics products in applications not intended by nec electronics, they must contact an nec electronics sales representative in advance to determine nec electronics' willingness to support a given application. (note) (1) "nec electronics" as used in this statement means nec electronics corporation and also includes its majority-owned subsidiaries. (2) "nec electronics products" means any product developed or manufactured by or for nec electronics (as defined above). ? ? ? ? ? ? m8e 02. 11-1

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