M5231TL

M5231TL MITSUBISHI | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 6

Technical content

MITSUBISHI <LINEAR ICs> VARIABLE OUTPUT VOLTAGE REGULATOR DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M5231TL is a semiconductor integrated circuit which is designed for variable output voltage regulator and is housed in a small 5-pin SIP. [5] GNO The input range 8~70V, and the output voltage range 3~ a [4] VOLTAGE . i - ADJUSTMENT 50V can be optionally adjusted by the external resistors. In = COMPENSATION addition, by attaching power transistors, high current gains 8 fz] ourrur can be achieved, making the device suitable for used in the 2 1 power supplies of a wide variety of equipment. [1] Inpu Outline 5P5T

FEATURES

@ High input voltage «sss esses eeeeeeeeeessseseeeeeeees Vi=TOV © Wide range of output voltages <1+-*+0+-+++"""* Vo=3V~50V @ Low output noise voltage *--++--7----+--- Vwo= 6“ Vems( typ.) © Built-in current limiting and thermal shutdown circuits @ Capability of adjusting the output voltage rise time constant of the coefficients by the external capacitor © Capability of the operating control by the external signal APPLICATION Audio, VTR equipment, and a variety of electronic musical instruments. RECOMMENDED OPERATING CONDITIONS Supply voltage range «+--+: sesseeeeessessseeeeeees BY TOV BLOCK DIAGRAM (1) INPUT 8 s) | S cy circuIT Siku ORRENT BRorEStion—@ outPut REFERENCE te . fa ' (3) COMPENSATION ‘CIRCUIT - VOLTAGE | @ ADJUSTMENT 1 (5) GND MITSUBISHI 4-16 ae ELECTRIC

MITSUBISHI <LINEAR ICs> VARIABLE OUTPUT VOLTAGE REGULATOR ABSOLUTE MAXIMUM RATINGS (ta=25'c) [Srmeo [Paramater Sd: atgs —*Y oi | [v.[inputvotage a CT [Pa [Power issipation | 50m Ta0= 47 =55~+125 ELECTRICAL CHARACTERISTICS (measurement circuit (a) is used with, Ta=25°C, Vi=40V, Vo=35V, I =10MA, C=10 x F, Caee=1 #F, R:=3. 3kQ, unless otherwise noted) Symbol Poramet Test conditi ee ae vn | ol arameter ‘est conditions ai [min [ tye [ max | [i [inputvenage Sr Y [vo [output votago——SSSSC*di SSCS | i [vivo [minimum input oupavotage aterm SSS | | Taiwean pin @ and pn ®) Tey] 8 [o.907] | [Regin | inputreguiation fVimse~sov, Te Tn | rv | [Rge.c [Load reguiavon umm toma or or oe | [ie | Bias curent _] 0 (erogaring he canontineomiow RnR) || 1.2 | 25 | ma_| Ta=OWBe, Vord-aV [oon | er | [aR [Rinpie ojoctin (dm Ta0ne( measured with oven) | | | | aa | [ina output noise votinge —[ maone~toowne ~~} | aver TEST CIRCUITS {a) Standard test circuit VomVner(1+-Re) 41. 814-75) (v) =| Vo _. Vo _. Roe Pi yooo 13. 3X05 G—1) (kA) Ri=3. 3kQ, Vner 1. 8V c @) @ *4 rR, @ M5231TL ] ate | ree g Unit Resistance Q (b) Ripple rejection test circuit Capacitance : F 1=120Hz ei =0d8m c Oro O—1, sj , | mace ‘eo o0) ‘) + MS231TL (4) a I: [ te al if : Unit Resistance : Q Capacitance : F MITSUBISHI oaitiees 4-17

MITSUBISHI <LINEAR ICs> M5231TL VARIABLE OUTPUT VOLTAGE REGULATOR = . ) TYPICAL CHARACTERISTICS (12=25, unless otherwise noted toap cu vs. THERMAL DERATING (MAXIMUM RATINGS) INPUT-OUTPUT VOLTAGE DIFFERENCE 500 50,

3 CCITT

= 400 < 40] TONE ee E id IN 2 S-NEEL TTT TT Eco \\ @ SENET PLETE N °c Peo °F 23 50 75 100 125 °y 0 20 30-40 500 70-80 90 100 AMBIENT TEMPERATURE Ta (TC) INPUT-OUTPUT VOLTAGE DIFFERENCE V.-Vo (v) z OUTPUT VOLTAGE REGULATION OUTPUT VOLTAGE CHARACTERISTICS Eo — 50;

5 COON Lea _ A eT

@ SCOON Te s Sor 2 wi -NLL s TA 6 15 ‘ 35) = 35) 2 SCOP TTT w at. ZC 7] < 2 oO 30 s SCPE TPN TTT os see & 3 an Aen a LEAL 3 >» a 5 wl AL f® gS aan 2 of} a 3° SSSeSReeee 3 fA tens 2 sLtt[lll iit Zt TI CT 3 0 5 10 15 20 25 30 35 40 45 50 © 10 20 30 40 50 60 70 80 90 100 OUTPUT CURRENT | (mA) INPUT VOLTAGE V, (V) LOAD CHARACTERISTICS BIAS CURRENT VS. INPUT VOLTAGE 40, > 8 PP et yy =“ 3 reno (DISREGARDING THE P| fh = att 4 CURRENT IN RESISTORS Ri, R2) 2 = yet He PT eft og COT 8 fT Ett : —— 7 | ee

5 TET TTT 8 cry Tt |

z° 2 TTT TTT BLE TTT TT 5 a ttt tit [| ott | | | 0 10 20 30 40 50 60 70 80 0 10 2 30 40 50 60 70 LOAD CURRENT |, (mA) INPUT VOLTAGE V, (V) MITSUBISHI 4—18 oe MiERs .

MITSUBISHI <LINEAR ICs> MS231TL VARIABLE OUTPUT VOLTAGE REGULATOR TEMPERATURE COEFFICIENT OF OUTPUT VOLTAGE VS. BIAS CURRENT VS. OUTPUT VOLTAGE OUTPUT VOLTAGE CHARACTERISTICS 5 0.04 aS spe ra & 0.03 ip sacsseses Oe (A bessssaasi = 9 - jt TtP PTT Ee oo Pes By Py PE ett TTei ry WE oor

8 CEE ag CT TT ry

ce} -E Ss Qo eRe ge gt tT Tit Tt | es a a G5 oo = I} se TTT TTT Tt Ty SeSEEnees C SeSeSEREae| 0 5 10 15 20 25 30 35 OUTPUT VOLTAGE Vo (V) OUTPUT VOLTAGE Vo (Vv) THERMAL CUTOFF RIPPLE REJECTION 50; @ 100 veo] | TTT TT] en ee S Spvereyl TT TTT] = ott] TT vor oe o wt tt ee Fol pete oO 30 c 7 NY eo TTT TT ae 4 eee 33 3 PEPE g ott ETT TT Tt ef of || | > 20) 5 ees A ee a | a Ps 38 4 Bann Cee a 4 oot tT SRS SSS! se See Sees 0 50 100 150 200 AMBIENT TEMPERATURE Tj (Cc) FREQUENCY f (Hz) INPUT REGULATION VS. VOLTAGE ADJUSTING RESISTANCE VS. INPUT-OUTPUT VOLTAGE DIFFERENCE @ OUTPUT VOLTAGE = 100 > 10 R= 3. 3kQ rT TT] ee oo g SOE TT CPT Terres z “EH z 8 Ltt tT gat ti tt | ds Dp Eft Pe] ¢ og TTY ECE 77 4eeeeeen Feat LET TTT Cases o123 45 6 7 8 9 10 5 0 5 10 15 20 25 30 35 40 45 50 INPUT-OUTPUT VOLTAGE DIFFERNCE $ OUTPUT VOLTAGE Vo (V) VirVo (Vv) MITSUBISHI eR : 4—19

MITSUBISHI <LINEAR ICs> MS231TL VARIABLE OUTPUT VOLTAGE REGULATOR APPLICATION EXAMPLES (1) Standard application example Vor. 8X (14-22) (v) R243, 3x(Yo—4 ) (ka) Connection of this capacitor gives the following 1.8 characteristics. 5 5 1) The rise time of the output voltage can be ™ © @ vo adjusted (slowed). GE Cree 2) The ripple rejection ratio is improved. + 3) Output noise voltage is reduced down to 1/10 a MB5231TL E.10 of three terminal regulator IC. (3) ‘Compensation capability by connection of a capacitor. EXAMPLE 1 OF CHARACTERISTIC ACHIEVED CHARACTERISTICS (2) Current boost circuit with NPN external power TR TOR SXVERNAL GARAGHORS TO) POWER TRANSISTOR 1, =200mA 50 oo ll thee wo —_to 6 4 s Steerer 2 eee * ree re wszoT. +4) 2 < 56 (rman ae 3 off | 6 2 eee 2 owl tt tT © a eee oLITTT TTT tI | 0057015 2025 3035 40 05 50 TIME (8) (3) Supper low dropout regulator circuits (Vio=100mMW) HUM REJECTION 6548 281283 h © Stable operation is expected even vw TR > vo if the input-output voltage differences ° 200mA © 15V re as low as 0.1V. OVER 15.1 h tCee " ‘The neat sink of power TR can become Re, > tae small in size owing to low dissipation.

30 Sy © cong aa The Ri is a load current limit resistor

tte ImszaiT. @) Ht Ce and the input-output voltage differences tite One between (D and @ pins must be over 3V. rior @ #83 Vi-Vne~(h+he—1B)R3>3V ‘ G) Ga F3.3K le giteama (hpe100) h = et sama MITSUBISHI 420 walters

MITSUBISHI <LINEAR ICs> VARIABLE OUTPUT VOLTAGE REGULATOR (4) Output voltage ON/OFF controller, Step UP/DOWN controller INPUT 2SA1283 output ve o Vo. +35v Re > ince dc, -+28V when TR: is ON 1 10, +15V when TR: is OFF xo la | ae i We /ws231TL H(4) @ The output voltage Vo IS OV when Wc, ® Rs the RT, of @ pin is ON. Theretore, 1~104 L AszRL > * the power can be on/otf depending © Car ER Ob. 3k 0 on each case. + J TRe @ The output voltage is changeable by switching the RT2. TR, @ Resistor of 1kQ must be connected 7 © for Ry to protect the integrated circuit. (Note) The load current can be over 1A by connection the external power TR. ¢ MITSUBISHI r ELECTRIC 4—21