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| DA9128A.002 July 12, 1998 /'2 9ROWDJH 5HJXODWRU ,& *AUurrAyAqAyhtrArtyh *ASrtyhArhiyrqvhiyrApy *AQrAhvtAyrrAqr *UurhyArpv 0$6$ 9@T8SDQUDPI The MAS9128A is voltage regulator IC with three 2.85V LDO regulators providing voltage regulation for the handset terminal. The output voltages of the three regulators can be modified through a mask option. Two enable/disable pins control the state of A@6UVS@T the regulators. In order to save power the device goes into sleep mode when all regulators are disabled. An internal thermal protection circuit prevents the device from overheating. The maximum output current is limited internally. 6QQGD86UDPI * 2.85V regulators at 100mA, 70mA and 50mA * Output accuracy <3% * Fast dynamic response * Low output noise * Low supply current: 150A per regulator * SO8 package 7GP8FA9D6BS6H * Mobile phones * Cordless phones * Battery powered systems ENA & LDO_A (100mA) OUTA & ENBC LDO_B (70mA) OUTB & Temperature Protection LDO_C (50mA) OUTC & Bandgap Reference VREF VCC GND 1 DA9128A.002 July 12, 1998 QDIA8PIADBVS6UDPI SO8 1 8 OUTB OUTA OUTC 2 7 VCC ENBC 3 6 GND ENA 4 5 VREF QDIA9@T8SDQUDPI QvAIhr Qv Ur Apv OUTA OUTC ENBC ENA VREF GND VCC OUTA 1 2 3 4 5 6 7 8 O O I I O P P O 2.85V/100mA regulator output 2.85V/50mA regulator output Enable for regulators B and C Enable for regulator A Reference voltage Ground Positive supply voltage 2.85V/70mA regulator output 2 DA9128A.002 July 12, 1998 67TPGVU@AH6YDHVHAS6UDIBT (All voltages with respect to ground.) Qhhrr Tiy 8qvv Hv Hh Vv Supply Voltage VCC -0.3 13.0 V Logic input voltage VEN -0.3 VCC+0.3 0 Max. Junction Temperature TJ 150 C 0 Thermal resistance RJA 163 C/W 0 Lead temperature for 10 seconds 230 C 0 Storage Temperature TS -55 +150 C ESD Rating Note 1: Stresses beyond those listed may cause permanent damage to the device. The device may not operate under these conditions, but will not be destroyed. S@8PHH@I9@9APQ@S6UDPIA8PI9DUDPIT Qhhrr Tiy 8qvv Hv U Hh Vv Supply Voltage Operating Temperature VCC TAMB 3.1 -20 6.5 +70 0 V C @G@8USD86GA8C6S68U@SDTUD8T x UurhyArpv Qhhrr Tiy 8qvv Hv U Hh Vv Threshold high Threshold low Continuos power dissipation in operation TH TL 130 120 150 140 170 160 0 0 C C TAMB = 250C TAMB = 70 C 0 0 644 368 mW mW NOTE 2:A hysteresis of 10 C avoids oscillation in case of thermal shutdown. After the regulator temperature has dropped by this value, it will turn on again automatically. x 9vtvhyADA@I6A@I78 (TAMB = -20 C to +70 C, unless otherwise noted. Typical value for T is 27 C.) J Qhhrr Tiy 8qvv Hv U Hh Vv 0 0 0 Input high voltage Input low voltage VIH VIL 2.2 0.40 V V 3 DA9128A.002 July 12, 1998 @G@8USD86GA8C6S68U@SDTUD8T x SrtyhAPAG9Pf6AG9Pf7AG9Pf8 (TAMB = -20 C to +70 C, unless otherwise noted. Typical value for T is 27 C Cin=1F Cout= 1F,ceramic) J Qhhrr Tiy 8qvv Hv U Hh Vv 0 0 0 Output voltage Short circuit current LDO_A LDO_B LDO_C Load Current LDO_A LDO_B LDO_C Line regulation Load regulation LDO_A LDO_B LDO_C Load transient VOUT 3.1V < VCC < 6.5V, 0mA < I OUT < I MAX 2.7 2.85 3.0 V IMAXA IMAXB IMAXC IOUTA IOUTB IOUTC 1Vpp at VCC, max. load 0mA < I OUT < I MAX 0 0 0 310 220 170 100 70 50 1.1 9 6 5 TAMB = 25 C 10uA to 1/2 load in 1us (4) o mA mA mA mA mA mA mV mV mV mV mV mV mV dB 10 45 31 22 -60 -70 -85 50 60 100uA to max. Load in 1us (4) 10uA to max. Load in 1us (5) PSRR Quiescent current per regulator IQR IQR IQR Total quiescent current Noise IQ f 10kHz, 1Vpp at VCC = 4.5V CREF = 10nF (3) ON, max. load ON, IOUT = 100uA OFF ENA = ENBC = 0V IOUT = 0 V CC = 6.5V 10Hz < f < 100kHz typical load, no capacitor at VREF 10Hz < f < 100kHz typical load, 10nF cap. at VREF Enables OFF to ON 2.7V < VOUT < 3.0V 10nF cap. at VREF COUT ESR 0.8 0.01 170 150 <1 <1 30 uA uA uA A 190 50 0.5 1.0 uVrms uVrms ms Settling time Output capacitor 1.0 0.1 2.6 1 uF Ohm NOTE 3:To get the real quiescent current of the device, the quiescent current of the reference voltage generator (140uA typ.) has to be added together once for all regulators. NOTE 4:VOUT does not drop below 2.7V for more than 1us. NOTE 5:VOUT does not drop below 2.5V for more than 1us or below 2.7V for more than 50us. 4 DA9128A.002 July 12, 1998 AVI8UDPIT x TyAWyhtrAWyhtrASrtyh The device is supplied with 3.1V to 6.5V battery voltage under normal conditions. An internal band gap voltage reference is used to generate the reference voltage for all three voltage regulators. The reference voltage is routed via an internal 20kOhm Resistor to an external pin where a filter capacitor can be connected in order to reduce the noise level of all three regulators. The startup time of the reference voltage is then determined by the value of the bypass capacitor at pin VREF. x @hiyrAQv Each regulator can be enabled/disabled by the two enable pins ENA and ENBC. Pin ENA controls regulator LDO_A and pin ENBC controls both regulators LDO_B and LDO_C. If both enable pins are forced low, the internal voltage reference and internal bias source are turned off in order to save power. A common enable for all three regulator outputs is designed, but connected to VDD internally for the SOIC8 version of MAS9128A. x Srtyh The device contains three 2.85V low dropout CMOS regulators with maximum output currents of 100mA, 70mA and 50mA. There is a mask option to modify the output voltage to 2.55V, 2.70V, 2.85V, 3.00V or 3.15V. The IC has thermal protection in order to prevent thermal destruction especially at high ambient temperatures. Maximum output current of each regulator is limited by an internal circuitry. The regulation loop of the regulators is optimized to work with low ESR ceramic buffer capacitors at the output. GtvpAhiyrAsA@hiyrAv @I6 @I78 G9Pf6 G9Pf7 G9Pf8 WS@A 1 1 0 0 1 0 1 0 ON ON OFF OFF ON OFF ON OFF ON OFF ON OFF ON ON ON OFF 6QQGD86UDPIADIAPSH6UDPI WDIA" W%$W A W88 !'$W PVU6 PVU7 !'$W A PVU8 !'$W A 0$6$ @I6 ss @I78 A BI9 WS@A A 5 DA9128A.002 July 12, 1998 Q68F6B@APVUGDI@TA6I9AS@8PHH@I9@9AG6I9AQ6UU@SI 8 LE D S O TLIN A OU E 0.25 x 45 0.50 x 45 1.27 B SC 1.35 1.75 0 - 8 0.71 4.80 5.00 7.47 2.39 5.80 6.20 PAD LAYOUT S TING EA P LAN E PIN 1 1.27 P1 IN A M SU M N IN m LL EA RE E TS m 3.80 4.00 0.10 0.25 0.40 1.27 0.33 0.51 6 DA9128A.002 July 12, 1998 PS9@SDIBADIAPSH6UDPI N MAS9128AS MAS9128AS-T GP86GA9DTUSD7VUPS LDO Voltage Regulator IC LDO Voltage Regulator IC SO8 SO8 Tape and Reel HD8SPI6TA8PIU68UT Micronas Semiconductor GmbH Lohweg 29 D-85375 NEUFAHRN, GERMANY Micronas Semiconductor SA Ch. Chapons-des-Pres CH-2022 BEVAIX, SWITZERLAND Micronas Oy Kamreerintie 2, P.O.Box 51 FIN-02771 ESPOO, FINLAND Tel. (08165) 9521 0 Tel. Int. + 49 8165 9521 0 Telefax + 49 8165 9521 99 tel. (032) 847 0111 Tel. Int. +41 32 847 0111 Telefax +41 32 846 1930 Tel. (09) 80521 Tel. Int. +358 9 80521 Telefax +358 9 8053213 127,&( Micronas reserves the right to make changes to the products contained in this data sheet in order to improve the design or performance and to supply the best possible products. Micronas assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights unless otherwise specified in this data sheet, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Micronas makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. 7 End of Data Sheet Multimedia ICs MICRONAS Back to Data Sheets |
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