M5236L MITSUBISHI | Alldatasheet

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iE [PRC END SRS ERI TT MITSUBISHI LINEAR ICs Eo fos german: | M5236L, ML . ue [82 (GENERAL PURPOSE 3-TERMINAL VARIABLE VOLTAGE OUTPUT REGULATOR f°" DESCRIPTION: te “. . TRIN CONFIGURATION for general-purpose output voltage regulator. A high-performance variable output voltage regulator with z ‘small input-output voltage differences can be made in com- 8 bination with externally connected PNP transistors. 2 It is housed in a small 3-pin package, including a refer- ence voltage circuit, error amplifier, and driver, and the out- put voltage can be set freely by externally connected resis-_ . ~O U tors, and a small, compact power supply circuit can be sotT-89 . achieved, making the device suitable for use in small elec- tronic equipment, such as car stereo, radio cassette recor- der and portable stereo equipment. D®® FEATURES _ . qo-8aL . @ Wide operating voltage range srateessesessnneessseeeeeeeees Viy=,5V~S6V, Vo=1.5V~33V PIN CONNECTION © Capable of operating at low input-output voltage for driver © input by externally connected power transistors @eno (Vcetsat) state of TR) sss rssseese + Vy o¢miny2#0.2V © Output voltage can be set freely by externally connected @ VOLTAGE ADJUSTMENT resistors @ Built-in ASO protection and thermal cutoff circuits . © Capable of taping (automated insertion) and lead forming APPLICATION ~ ee For car stereo equipment, radio casette recorder, portable S& stereo and other general electronic equipment. _ SS RECOMMENDED OPERATING CONDITIONS TO-92L package Supply voltage range --+rsssssreeee0 Vin=3.5V~30V Ss Rated supply voltage <-+1++-7+++-+++s++4+++-Vo=1,5V~25V SOT-89 package BLOCK DIAGRAM \\ : 5 INPUT V, 0 > output a * me PT Ge . ; J © - Vret <I {VOLTAGE ERROR _ ADJUSTMENT n AMPLIFIER) | | Ses Rr H | @) end - . MITSUBISHI 4-26 oo are TES

SORE Ta PS ogee er MITSUBISHI LINEAR ICs eee ee oo M5236L, ML : ABSOLUTE MAXIMUM RATINGS (Ta=25'c) . 2 woe ite eee cet oe ag Lo [ie [orve current” | | [Pa [Power aesipation | S00(SiP) S000) : ELECTRICAL CHARACTERISTICS (measurement circuit (a) is used with, Ta=25°C, Vi=15V, Vo=12V, I= 200MA, Crer= 1yuF, Pi=4.3kQ, unless otherwise noted) . - : . . Parameter Test conditions Unit . Cowon pin @ na pin) rss p= |v | [Wo outpun votage rete ~ toa | LWcVo [Minimum input-ouipalvotage difernce | i et | Toawmoen pin © and pin O) [ree [aes fe |v [Resin finputreguiation vise Ci oe | | [Resse [tond regulation | u=to~200ma SS SSSS*d if we [or fe | Tan 0~75 a 1=20H2~100KHe [ss Tavern] TEST CIRCUITS . {a) Standard test circuit Vo=Vner(1+ £2 ys¢1.26% (14-24) (Vv) 1 . . = Vo _ Vo _ ; Re Ri (yee 1494. 3X(F pg —1) (ka) . . (Ri =4, 3k Q, Vacs. 26V) 288524 - uF +S . @} M5236. +) Mu 2200 ~~ |m5236ML| The PH IO) Gr) co Rr 47 er 0.33 ¢F ‘4. 3kQ {b) Ripple rejection test circuit . 1=120Hz e/=0. 1Vrms e 2SB524 uF +5 : + v a... Re if AR=20l0g (EL) (aB) : ws GH msz36._ |) as), Vv M5236ML ar . ww) e. ¥ c 47 HE ° 0,33 uF . @ a ~ . . : 9 MITSUBISHI : : ELECTRIC 4-27

Pei Se oy eds ayn 4 = MITSUBISHI LINEAR ICs poet us GENERAL PURPOSE 3-TERMINAL VARIABLE VOLTAGE OUTPUT REGULATOR eS _—(EOR DRIVER) _ a TYPICAL CHARACTERISTICS. 7 ae : Dey Fo Man RT Se ge Te — pec wah TeRMAL DERATING (MAXIMUM RATINGS) ~~~""” “OUTPUT VOLTAGE CHARACTERISTICS ~~ a FRLTT T Jr S = g0|-—» Eo | PAL EE] feb Z 600 ta} Vo=30V Tee KEE) 3 ft < a TINS 12 © 200 Ts, £ Lt oe g ~ 5 10 PT TINE * [4 ew ° o( ft TT Ve - i 0 40 80 120 160 200 0 10 20 30 40 50 AMBIENT TMPERATURE Ta (C) INPUT VOLTAGE VW, (V) BIAS CURRENT VS. INPUT VOLTAGE ‘ RIPPLE REJECTION 5 : ge ViaiEv ETT) DIMI lee < c 1L=200mA #4 = 8 Crer= 1 uF ECP Aa 2, 2 of UT

7 Fs ny

: 3 ba c. - 9 ieee | cncninitt ge (cr i vanll FUE SOE 0 c i) 0 10 20 30 40 50 100 «3: S71k 3°5710k 3 57100k INPUT VOLTAGE Vin (V) FREQUENCY f (Hz) : OUPUT VOLTAGE VS. ; DRIVE CURRINT VS. INPUT VOLTAGE VOLTAGE ADJUSTING RESISTANCE 50 50 ee ee = = am Vo . z 0 < 40 Re=4. 3X (5 95 1)kQ : = NX 3 eT NI og. x | PIPP SE | og EE : = 20 S$ 20 WA fs 5 5 ee | ee ce oe 0 0 o 10 20 30 40 50 0 25 50 75 100 125 INPUT VOLTAGE Vin (V) VOLTAGE ADJUSTING RESISTANCE Re (k@) we : 9 MITSUBISHI 4-28 . ELECTRIC

pe ce ee ee an MITSUBISHI LINEAR ICs Poe avereiweee ns MS236L, ML Eo re c&20. GENERAL PURPOSE 3-TERMINAL VARIABLE VOLTAGE OUTPUT REGULATOR [Dn L: APPLICATION EXAMPLES 202 a “S-4 Standard application circuit =e ati ae ae Sse aes do a , ae : : Vo=Vrerx (14-82 )v OVER V\\=12.2V 288524 Cree 0.24 Vo=12V 1 ° ZL ° Vaer=1.26V(typ.) he é B eka 31, Ry of 180~220Q should be used. * bia D = +] over 220Q a . ® 100 pF ~ ‘ 0.33 nF 7 4.3kQ . . . ‘ Note) Capacitors displaying small capacity change with . temperature should be used. 2. Control circuit for maximum drive current (low) . When the input voltage (V) is lower than the set output . voltage (Vo), drive current of approximately 30mA to 45mA runs in Pin © of the integrated circuit. (Refer to OveR TYPICAL CHARACTERISTICS DRIVE CURRENT VS IN- Verl2,2v "288524 ~7h=0.28 Vo=12V BUT VOLTAGE. For example, when the input voltage V; & Re of 20V is higher than the fixed output voltage of 20V or Rm 8 36.6kQ above, and input and output are inverted, power dis- po emma am Oo 100. 4c _sipation in the circuit is Pa=20VX 45mA=900mW, and > ® reaches the maximum rating, making it necessary to . 0.33 nF Ip Control the drive current.) When the input power supply is supplied by batteries and the current needs to be : controlled, a resistor Riy can be inserted to control the : drive current. (Fig. 1 shows input voltage dependency of the control current and input resistor Rin.) When the input voltage reaches 12V (=Vo), the cur- rent at Pin @ is limited to approximately to 20mA. Fig, 2 shows Ip-V; characteristics of the circuit. : ~ Fig. 1 MAXIMUM DRIVE CURRENT Fig. 2 lp—V, CHARACTERISTICS CONTROL CHARACTERISTICS (lpn) IN APPLICATION EXAMPLE 2 j 1.0 9 eee TO "TTT TLE g WILY ee 2 oA | 2 LTP 7TA TT —£ “tT TT Tyy Ty ty gS EIGRECECEH =EEREYCEEEE | mea i | HA] EAE , o / 3 / © al VLEET y G2 an Be EYEEEEEEEH aeaeneeee ge HU s [Ve LP 7 ~ gL LETT TTT tT J oL 21 [TTT | . 0 5 10 15 20 25 30 35 40 45 50 0 2 4 6 8 10 12 14 16 18 20 INPUT VOLTAGE vy, (V) : INPUT VOLTAGE Vv, (V) , . a . % MITSUBISHI . ELECTRIC . 4-29 Ss.

ka TRIBE EES eS acaee end 5 MITSUBISHI LINEAR ICs — ms236L, ML [ SL URE GENERAL PURPOSE 3-TERMINAL VARIABLE VOLTAGE OUTPUT REGULATOR Pee GEE Se fon trees : 3. ON/OFF controt of output vortage circum . ra = Dan ; 7M - 288524 Vo Vo 4 ; a Re 4 2202 ® 0.33 4F @ Rp EXTERNAL CONTROL SIGNAL - 4. 3k Q) | rarer vee H \\ ID R . - . 1 ov J I ee de Resistor R in the control circuit is determined by the fol- : lowing equation. : pm Vit Vem Veer’ - Vance 4 Vrer’—Vo' ' R, Ro . where, Vj: External control voltage . Vp: Forward voltage of diode (Dj) Vaer: 1.4V Pin @ voltage when Vrer’ is Votorr) Vo': OV output voltage when Vo!’ is Votorr) . 4% MITSUBISHI . . 3] 4-30 . ELECTRIC