specifications of any and all sanyo semiconductor co.,l td. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer ' s products or equipment. to verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ' sproductsor equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use. o0610 sy/90810 sy 20100824-s00001 no.a1829-1/6 LV5061V overview LV5061V is 1ch step-down switching regulator. the operation current is about 90 a, and low power consumption is achieved. functions ? 1ch sbd rectification controller ic ? maximum value of light load mode current is 90 a. ? built-in ocp circuit with p-by-p method ? when p-by-p is generated continuously, it shifts to the hiccup operation. ? if connect c-hiccup to gnd pin, then latch-off when over current. ? the oscillatory frequency can be set by the external pin. the oscillatory frequency is 300 khz to 2.2mhz ? built-in uvlo, tsd specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit input voltage v in max 22 v pdr,hdrv,rsns, ilim,en,pg v in v v in -pdr 6v ref 6v allowable pin voltage ss,fb,comp, c-hiccup,rt ref v allowable power dissipation pd max specified substrate *1 0.74 w operating temperature topr -40 to +85 ?c storage temperature tstg -55 to +150 ?c *1: specified substrate 114.3mm 76.1mm 1.6mm 3 glass-epoxy bi-cmos ic low power consumption and high efficiency step-down switching regulator controller orderin g numbe r : ena1829a
LV5061V no.a1829-2/6 recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage range v in 4.5 to 18 v electrical characteristics at ta = 25 c, v in = 15v ratings parameter symbol conditions min typ max unit reference voltage internal reference voltage vref 1.235 1.260 1.285 v pch drive voltage v pdr i out =0 to -5ma v in -5.5 v in -5.0 v in -4.5 v saw wave oscillator oscillatory frequency f osc rt=470k 280 330 380 khz on/off circuit ic start-up voltage v cnt_on 1.5 v in v disable voltage v cnt_off 0.3 v soft start circuit soft start source current i ss _sc en > 1.5v 1.3 2.0 2.7 a soft start sink current i ss _sk en > 1.5v, i lim > rsns ss=4v at hiccup 1.2 2.0 2.8 ma uvlo circuit uvlo release voltage v uvlon fb=comp 3.0 3.4 3.8 v uvlo lock voltage v uvlof fb=comp 2.5 2.9 3.3 v error amplifier input bias current i ea _in -100 -50 100 na error amplifier gain g ea 100 250 400 a/v output sink current i ea _osk fb=1.75v -40 -20 -10 a output source current i es _osc fb=0.75v 10 20 40 a over current limit circuit reference current i lim 1 48.4 55 61.6 a over current detection comparator offset voltage v lim_ofs -5 +5 mv rsns pin input range v rsns v in -0.175 v in v hiccup timer start-up cycle n lcycles 15 cycle hiccup comparator threshold voltage v thic 1.2 1.26 1.32 v hiccup timer change current i hic 12 3 a pwm comparator maximum on-duty d max 95 % logic output power good ?l? sink current i pwrgd _l pg=5v 4 5 6 ma power good ?h? leakage current i pwrgd _h pg=5v 1 a power good threshold voltage v tpg 1.0 1.1 1.2 v power good hysteresis v pg _h 40 50 60 mv output output on-resistance (high) r on h 3 output on-resistance (low) r on l 3 output on-current (high) i on h 500 ma output on-current (low) i on l 500 ma the entire device stand-by current i ccs en < 0.3v 1 a light load mode consumption current i sleep 1 en > 1.5v, no switching 50 70 90 a thermal shutdown tsd *2 170 ?c *2: design certification
LV5061V no.a1829-3/6 package dimensions unit : mm (typ) 3178b block diagram sanyo : ssop16(225mil) 5.2 4.4 6.4 0.22 0.65 (0.33) 18 9 16 0.5 0.15 1.5max 0.1 (1.3) pd max -- ta -40 -20 0 20 40 60 80 120 0.38 0 0.4 0.8 1.2 0.74 100 ambient temperature, ta -c allowable power dissipation, pd max -w specified circuit board : 114.3 76.11.6 mm 3 glass epoxy board wake-up band-gap bias + - uvlo.comp tsd + - + - hic cup.comp + - + ref pch drive 15pluse counter + - r1 r2 16.ref 7.pdr 4.v in c3 c5 c1 c10 v in r3 pwm.comp pbyp.comp + - 5.rsns 3.ilim v in level-shift pdr s q r q osc clk slope 10.rt 8.gnd r7 6.hdrv c2 c9 r4 fb r5 l d1 + - + - 2.en hi:on lo:off v in 11.c-hiccup c8 14.comp 15.fb c7 c6 12.ss 1.pg 9,13.nc r6 fb err.amp pg.comp 1.1v 1.26v enable
LV5061V no.a1829-4/6 pin assignment pin descriptions pin no. pin name descriptions equivalent circuit 1 pg power good pin. connect to open drain of mos-fet in ics inside. setting output voltage to "l", when fb voltage is 1.05v or less 2 en on/off pin 3 ilim for current detection. sink current is about 55 p a. the current limiter comparator works when an external resistor is connected between this pin and v in , and if the voltage of this resistor is less than the voltage of rsns then pch mos is turned off. this operation is reset each pwm pulse. 4 v in supply voltage pin it is observed by the uvlo function. when its voltage becomes 3.4v or more, ics startup in soft start. 5 rsns current detection re sistor connection pin. resistor is connected between v in and this pin, and the current flows to mosfet are measured. continued on next page. pg en ilim v in rsns hdrv pdr gnd n.c. rt c-hiccup ss n.c. comp fb ref 1 16 15 14 13 12 11 10 2 3 4 5 6 7 8 9 LV5061V top view pg gnd v in gnd en v in gnd ilim v in gnd v in gnd rsns
LV5061V no.a1829-5/6 continued from preceding page. pin no. pin name descriptions equivalent circuit 6 hdrv the external high-side mosfet gate drive pin 7 pdr gate drive voltage of the external pch mosfet. meanwhile, the bypass capaci tor is connected between v in and this pin. 8 gnd ground pin ground pin voltage is reference voltage. 9 nc n.c. pin. 10 rt oscillation frequency setting pin. resistor is connected between this pin and gnd. 11 c-hiccup it is capacitor connection pin for setting re-startup cycle in hiccup mode if connect it to gnd pin, then latch-off when over current. 12 ss capacitor connection pin for soft start. about 2 p a current charges the soft start capacitor. 13 nc nc pin. 14 comp error amplifier output pin the phase compensation netw ork is connected between gnd pin and comp pin thanks to current-mode control, comp pin voltage would tell you the output current amplit ude. comp pin is connected internally to an int.comparator which comparators with 0.9v reference. if comp pin voltage is larger than. 0.9v, ic operates in ?continuous mode?. if comp pin voltage is smaller than 0.9v, ic operates in ?discontinuous mode (low consumption mode)?. continued on next page. hdrv pdr v in pdr gnd v in v in gnd v in gnd ilim v in gnd c-hiccup v in gnd ss v in gnd comp
LV5061V ps no.a1829-6/6 sanyo semiconductor co.,ltd. assumes no responsib ility for equipment failures that result from using products at values that exceed, even momentarily, rate d values (such as maximum ra tings, operating condition ranges, or other parameters) listed in products specif ications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-qual ity high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. it is possible that these probabilistic failures or malfunction could give rise to acci dents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause dam age to other property. when designing equipment, adopt safety measures so that these kinds of accidents or e vents cannot occur. such measures include but are not limited to protective circuits and error prevention c ircuits for safe design, redundant design, and structural design. upon using the technical information or products descri bed herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of sanyo semiconductor co.,ltd. or any third party. sanyo semiconductor co.,ltd. shall not be liable f or any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. information (including circuit diagr ams and circuit parameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equi pment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. in the event that any or all sanyo semiconductor c o.,ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities conc erned in accordance with the above law. no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any in formation storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd. continued from preceding page. pin no. pin name descriptions equivalent circuit 15 fb error amplifier reverse input pin ics make its voltage keep 1.26v. output voltage is divided by external resistors and it across fb. 16 ref reference voltage. this catalog provides information as of october, 2010. specifications and information herein are subject to change without notice. v in gnd fb v in gnd ref
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