Selection Guide
                                 2008




        AIC Headquarter
        Si-Soft Research Center
        3A1, No. 1 Li-Hsin Rd. 1, Science Park,
        Hsinchu 300, Taiwan, R.O.C.
        TEL: 886-3-577-2500 FAX: 886-3-577-2510

Quick Reference - Power Conversion Linear Voltage Regulator / Voltage Reference P. 4 Smart Low Dropout Negative Voltage DDR Voltage Reference AIC1729 400mA 1.8~4.0V AIC1714 5mA AIC1383 1.5A AIC431 2.495V, ±0.5% AIC1531 500mA 3.3V -3.0/-3.3/-5.0V AIC1383A 2A TL431 2.495V, ±1.6% AIC1532 External 3.3V AIC1383B 3A TL431A 2.495V, ±1.0% AIC1384 3A Ultra Low Dropout AIC1730 150mA 1.8~3.3V, in step of 0.1V AIC1742 150mA 1.5/1.8/2.0/2.5/2.8/2.85/2.9/3.0/3.3V Low Dropout AIC1721/D 150/300mA 3.3/5.0V AIC1722A 300mA 1.5/1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2V AIC1117 800mA 1.8/2.5/2.85/3.3V/5.0/adj. AIC1731 300mA 1.3/1.5/1.8/2.5/2.8/3.0/3.3V AIC1117A 1A 1.8/2.5/2.85/3.3V/5.0/adj. AIC1734 300mA 1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2V AIC1086 1.5A 1.8/2.5/2.85/3.3V/5.0/adj. AIC1723A 500mA 1.5/1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2V AIC1085 3A 1.5/1.8/2.5/3.3V/adj. AIC1733 500mA 1.3/1.5/1.8/2.5/2.8/3.0/3.3V AIC1084 5A 1.5/1.8/2.5/3.3V/adj. AIC1735 500mA 1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2V DC/DC Converter for Portable Application P. 5~8 Step-Down Step-Up Inverting Charge-Pump AIC1550 AIC1610 AIC1633 AIC1647 AIC1650 AIC1660 AIC1554 AIC1611 AIC1634 AIC1648 AIC1652 AIC1841 AIC1555 AIC1612 AIC1638 AIC1880 AIC1653 AIC1842 AIC1628 AIC1639 AIC1896 AIC1843 AIC1630 AIC1642 AIC1899 AIC1845 AIC1631 AIC1848 AIC7660 DC/DC Converter for High Power Application P. 7~8 Step-Down Multiple Output AIC1401 AIC1577 AIC1594 AIC1340 AIC1563 AIC1578 AIC1595 AIC1341 AIC1569A AIC1579/L AIC1596 AIC1533 AIC1573 AIC1580/L AIC2510 AIC1570 AIC1576 AIC1591 AIC2511 AIC1571 AIC1592 Universal DC/DC Converter P. 7~8 Universal AC/DC Converter P. 7~8 MC34063A AIC3842 AIC3843 For more information, please visit http://www.analog.com.tw 2

Quick Reference - Power Management Supervisory P. 9 AIC1680 AIC1686 AIC809 / 810 AIC811 / 812 Battery Managemet P. 9 NiMH/NiCd Charger Li-ion Protection AIC1781B Single High Power Charging AIC1821 1-Cell AIC1783A Single Low Power Charging AIC1802 2-Cell AIC1784 Single Low Power Charging AIC1803 3-Cell AIC1804 4-Cell Power Switch P. 9 Universal Power Switch USB Power Switch AIC1520 500mA AIC1525 1ch, 500mA AIC1521 500mA AIC1526 2ch, 500mA AIC1523 500mA AIC1528 2ch, 1000mA AIC1529 4ch, 1000mA High Current Driver P. 9 AIC2003 AIC2803 LB1268 White-LED Drivers Charge-Pump Boost Converter AIC1841 AIC1577 AIC1648 AIC1842 AIC1634 AIC1896 AIC1843 AIC1647 AIC1899 AIC1845 AIC1848 3

Selection Guide - Linear Voltage Regulators and Voltage Reference Output Input Voltage Part No. Output Voltage (V) Output Current Voltage Package max. (V) Accuracy Low Dropout Linear Regulator AIC1117 7 1.8/2.5/2.85/3.3/5.0/adj. 800mA ±1% TO252, TO220, SOT223, TO263 AIC1117A 7 1.8/2.5/2.85/3.3/5.0/adj. 1A ±1% TO252, TO220, SOT223, TO263 AIC1086 7 1.8/2.5/2.85/3.3/5.0/adj. 1.5A ±1% TO220, SOT223, TO263, TO252 AIC1085 7 1.5/1.8/2.5/3.3/adj. 3A ±1% TO220, TO252, TO263 AIC1084 7 1.5/1.8/2.5/3.3/adj 5A ±1% TO220, TO252, TO263 Smart Low Dropout Linear Regulator AIC1729 8 1.8 ~ 4.0V, in step of 0.1V 400mA ±2% SO-8, DIP8 AIC1531 7 3.3 500mA ±5% SO-8, DIP8, QFN12 AIC1532 7 3.3 500mA ±5% SO-8, DIP8 * Feature- AIC1729: Dual Output with Voltage Detector AIC1531/1532: Prioritized Input Source (VCC, VSBY, VAUX) to meet IAPC Ultra Low Dropout Linear Regulator AIC1721/D 12 3.3/5.0 150/300mA ±1% SOT89, TO92 AIC1722A 8 1.5/1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2 300mA ±2% SOT89, TO92, SOT23 AIC1723A 8 1.5/1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2 500mA ±2% SOT23, TO252, SOT89, SOT223 AIC1730 12 1.8~3.3V, in step of 0.1V 150mA ±2% SOT23-5 AIC1731 12 1.3/1.5/1.8/2.5/2.8/3.0/3.3 300mA ±2% SOT23-5, SOT89-5 AIC1733 12 1.3/1.5/1.8/2.5/2.8/3.0/3.3 500mA ±2% SOT23-5, SOT89-5, TO-252-5 AIC1734 12 1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2 300mA ±2% SOT89, TO92, SOT23 AIC1735 12 1.8/2.0/2.5/2.7/3.0/3.3/3.5/3.7/3.8/5.0/5.2 500mA ±2% SOT89, SOT223, TO252, SOT23 AIC1742 9 1.5/1.8/2.0/2.5/2.8/2.85/2.9/3.0/3.3 150mA ±2% SOT23-5 Negative Voltage Regulator AIC1714 -13 -3.0/-3.3/-5.0 5mA ±1.5% SOT89, TO92 Voltage Reference Cathode Reference Part No. Voltage Reference Voltage (V) Sink Current Voltage Package max. (V) Accuracy AIC431 30 2.495 250µA~200mA ±0.5% SO8, SOT23, SOT89, TO92 TL431A 30 2.495 250µA~200mA ±1.0% SO8, SOT23, SOT89, TO92 TL431 30 2.495 250µA~200mA ±1.6% SO8, SOT23, SOT89, TO92 DDR Regulator Input Voltage Load Part No. Output Voltage (V) Output Current Package max. (V) Regulation AIC1383 6 adj. 1500mA ±25mV SOP8 AIC1383A 6 adj. 2000mA ±20mV SOP8, TO252-5 AIC1383B 6 adj. 3000mA ±45mV SOP8, TO252-5, TO263-5 AIC1384 5.5 adj. 3000mA ±25mV SOP8, SOP8 Exposed Pad For more information please visit http:// ww analog com.tw o mo e nfo m t o please s ht p // ww analo c m tw or ore nfo mat on, orm tio For more information, please visit http://www.analog.com.tw 4 sit ttp /www.a a og.c p:// / alo w

Selection Guide - Portable Power Application Step Up Series Supply Voltage Current Freq. Part No. Output Voltage Limit (KHZ) min. max. AIC1610 1.1 5.5 1.8 ~ 5.5V V 200 AIC1611 1.1 5.5 1.8 ~ 5.5V V 200 AIC1612 1.1 5.5 1.8 ~ 5.5V V 200 AIC1628 4.0 20.0 VIN ~ 4.5VIN V 90 ~ 250 AIC1630 1.8 5.5 VIN ~ 4.5VIN 120 AIC1631 1.8 5.5 VIN ~ 7.0V V 120 AIC1633 1.8 5.5 VIN ~ 7.0V V 120 AIC1634 2.5 10.0 VIN ~ 30.0V V 1400 AIC1638 0.9 6.0 2.7, 3.0, 3.3, 4.5, 5.0V 105 AIC1639 0.9 6.0 2.7, 3.0, 3.3, 5.0V 105 AIC1642 0.9 6.0 2.7, 3.0, 3.1, 3.3, 3.7, 4.5, 5.0V V 105 AIC1647 2.5 5.5 VIN ~ 30.0V V 1200 AIC1648 2.5 5.5 VIN ~ 22.0V V 1200 AIC1880 2.6 5.5 VIN ~ 11.0V V 640 / 1220 AIC1896 2.5 10.0 VIN ~ 30.0V V 1400 AIC1899 2.5 5.5 VIN ~ 24.0V V 1000 Inverting Series Supply Voltage Current Freq. Part No. Output Voltage Limit (KHZ) min. max. AIC1650 4.0 20.0 VOUT= -1.22 ~ (-40)V 100 ~ 320 AIC1652 2.4 7.0 VOUT= -1.22 ~ (-40)V 70 ~ 160 AIC1653 1.8 10.0 -1.23V ~ -28V V - Charge Pump Series Supply Voltage Current Freq. Part No. Output Voltage Limit (KHZ) min. max. AIC1660 1.5 6.0 (-VIN), 0.5VIN , 2.0VIN 10 / 50 AIC7660 1.5 6.0 (-VIN), 0.5VIN , 2.0VIN 10 / 50 AIC1841 2.7 5.5 5.0V (up to 4 WLEDs) V 1000 AIC1842 2.7 5.5 5.0V (up to 6 WLEDs) V 1000 AIC1843 2.7 5.5 5.0V (up to 4 WLEDs) V 1000 AIC1845 2.7 5.5 5.0V V 650 AIC1848 2.7 5.5 5.0V V 1800 5

Description Package High Efficiency Synchronous Step-Up PFM DC-DC Converter MSOP8 High Efficiency Synchronous Step-Up PFM DC-DC Converter MSOP8 High Efficiency Selectable Current Limit Synchronous Step-Up PFM DC/DC Converter MSOP10 High-Efficiency, Step-Up PFM/PSM DC/DC Controller SO8, DIP8 Step-Up PSM DC/DC Controller with Low Battery Detector SO8, DIP8 500mA, High Efficiency Step-Up PSM DC/DC Converter SO8, DIP8 200mA, Step-Up PSM DC/DC Converter SO8, DIP8 1.4MHz Current-Mode Step-Up PWM DC/DC Converter SOT23-6 1-Cell, 3-Pin, Step-Up PFM DC/DC Converter SOT89, TO92, SOT23 1-Cell, 3-Pin, Step-Up PFM DC/DC Controller SOT89, TO92, SOT23 3-Pin One-Cell Step-Up PFM DC/DC Converter SOT89, TO92, SOT23 White LED Step-Up PWM Converter in SOT23 SOT23-5, TSOT23-5, QFN-12 Built-in OVP White LED Step-Up PWM Converter SOT23-6, TSOT23-6, QFN-12 Low Noise, Step-Up PWM DC/DC Converter MSOP8 1.4MHz SOT23 Current-Mode Step-Up PWM DC/DC Converter SOT23-6, TSOT23-6 1.0MHz Current-Mode Step-Up PWM DC/DC Converter SOT23-6, TSOT23-6 Description Package High-Efficiency, Inverting PFM DC/DC Controller SO8, DIP8 Micro-Power Inverting PFM DC/DC Controller SO8, DIP8 Micropower Inverting PFM DC/DC Converter in SOT-23-5 SOT23-5 Description Package Switched-Capacitor Voltage Converter. Improved Direct Replacement for the Popular 7660. SO8, DIP8 Switched-Capacitor Voltage Converter. Improved Direct Replacement for the Popular 7660. SO8, DIP8 High Efficiency 1.5X PWM Charge Pump For 4 White LEDs Backlighting QFN-12 High Efficiency 1.5X PWM Charge Pump For 6 White LEDs Backlighting QFN-16 High Efficiency 1.5X PWM Charge Pump For 4 White LEDs Backlighting DFN-12 Regulated 5V PFM Charge Pump In SOT-23 For White LEDs Backlighting SOT23-6 Regulated 5V PWM Charge Pump In SOT-23 For White LEDs Backlighting SOT23-6 For more information, please visit http://www.analog.com.tw Fo mo e info m ti or ore nfo mat For more information, please visit http://www analog.com tw orm tion le s is ttp // ww.anal c m tw eas sit ttp se ww a p://ww m.t alog com 6

Selection Guide - High Power Application & Universal Application Step Down Series Supply Voltage Current Freq. Part No. *Output Voltage min. max. Limit (KHZ) AIC1401 9.5 12.0 1.3V ~ VIN V 200 AIC1550 2.5 6.5 0.75V ~ VIN V 500~1000 AIC1554 2.5 6.5 0.75V ~ VIN V 500~1000 AIC1555 2.5 6.5 0.75V ~ VIN V 500 ~1000 AIC1563 3 30.0 1.25V ~ VIN V 0.1 ~ 100 AIC1569A 10.2 14.0 1.3V ~ 3.5V V 200 ~ 350 AIC1573 3 30.0 1.25V ~ VIN V 0.1~100 AIC1576 4 18.0 1.22V ~ VIN V 90 ~ 280 AIC1577 4.5 24.0 0.8V ~ 20V V 500 AIC1578 4 18.0 1.22V ~ VIN V 90 ~ 280 AIC1579/L 9.5 12.0 2.0V ~ VIN / 1.3V~ VIN V 200 AIC1580/L 9.5 12.0 2.0V ~ VIN / 1.3V~ VIN V 200 AIC1591 8 25.0 0.8V ~ VIN V 300 AIC1592 4.5 6.5 0.8V ~ VIN V 300 AIC1594 4.5 30.0 1.25V ~ VIN V 150 AIC1595 4.5 24.0 1.25V~ VIN V 150 AIC1596 4.5 30.0 1.25V~ VIN V 150 AIC2510 4.5 30.0 1.25V~ VIN V 150 AIC2511 4.5 24.0 1.25V~ VIN V 150 Multiple Output Series Supply Voltage Current Part No. Multioutput *Output Voltage min. max. Limit 1 Step Down Synchronous Controller AIC1340 10.4 12.0 VREF= 1.265, 1.275, 1.3 V 1 Linear Regulator 1 Linear Controller 1 Step Down Synchronous Controller AIC1341 10.4 12.0 VREF= 1.27, 1.275, 1.3 V 2 Linear Controller Charge-pump: +30 - 2 Charge-pump AIC1533 10.0 15.0 -10 - 1 Linear Regulator Linear: VADJ=1.25 V 1 Step Down Synchronous Controller Switching VOUT = 1.3~3.5 AIC1570 10.4 12.0 V 1 Linear Regulator 1 Linear Controller Linear VREF=1.265, 1.275 1 Step Down Synchronous Controller Switching VOUT=1.3~3.5 AIC1571 10.4 12.0 V 2 Linear Controller Linear VREF=1.27, 1.275 Universal Application Current Function (A) Part No. Architecture Supply Voltage Internal External Switch Low IQ Switch ISW Limit AIC3842 Flyback 17.5 ~ 30.0 V 12mA AIC3843 Flyback 9.0 ~ 30.0 V 12mA MC34063A Step Down, Step Up, Inverting 3.0 ~ 30.0 1.6 1.6mA Glossary: (1) VREF could be the minimum VOUT. In the application, VOUT depends on the designed external resistors. Please check with datasheets for more information. (2) Internal Switch IOUT: built-in switch output current. ISW Limit: Internal switching current limit Maximum IOUT can never exceed ISW limit. Max. IOUT=(Efficiency)•(VIN/VOUT)•ISW 7

Description Package Step-Down DC/DC PWM Controller with Shutdown SO8 Low-Noise Synchronous PWM Step-Down DC/DC Converter MSOP8 Low-Noise Synchronous PWM Step-Down DC/DC Converter MSOP8 Low-Noise Synchronous PWM Step-Down DC/DC Converter MSOP8 Versatile DC/DC Converter SO8, DIP8 5-bit DAC, Synchronous PWM Power Controller SO20 1.5A Step-down DC/DC Converter SO8 (Exposed Pad) High-Efficiency, Step-Down DC/DC Controller SO8, DIP8 External NMOS Step-Down PWM Controller SO8, MSOP8 High-Efficiency, Step-Down DC/DC Controller SO8, DIP8 Step-Down DC/DC Controller SO8 Step-Down DC/DC Controller with Shutdown SO8 Single-Powered Synchronous Step-Down DC/DC Controller MSOP10 Single-Powered Synchronous Step-Down DC/DC Controller MSOP10 2A STEP-DOWN PWM CONVERTER SO8, TO252-5 3A STEP-DOWN PWM CONVERTER TO252-5, TO263-5, TO220-5, TO220B 3A STEP-DOWN PWM CONVERTER TO263-5, TO220-5, TO220B 3A STEP-DOWN PWM CONVERTER TO263-5, TO220-5, TO220B 3A STEP-DOWN PWM CONVERTER TO263-5, TO220-5, TO220B, TO252-5 Freq. Description Package (KHZ) 200 High Performance, Triple-Output, Auto-Tracking Combo Controller SO16 200 High Performance, Triple-Output, Auto-Tracking Combo Controller SO16 1000 Triple-Output LCD Power Supply SO14, TSSOP16 200 ~ 350 5-bit DAC, Synchronous PWM Power Regulator with LDO and Linear Controller SO24 200 ~ 350 5-bit DAC, Synchronous PWM Power Regulator with Dual Linear Controllers SO24 Freq. Description Package Current Limit (KHZ) V 52 Current-Mode PWM Controller SO8, DIP8 V 52 Current-Mode PWM Controller SO8, DIP8 V 0.1 ~ 100 Industrial Standard, Universal DC/DC Converter SO8, DIP8 (3) External Switch IOUT: Possible external power switch IOUT. The external device driving capacity may change the IOUT value, possibly greater than the max. IOUT, shown in the table above. The real IOUT depend on the external device's driving capability. (BJT : β ; MOS : Gm) Example: If customers request -> VIN=1.5V(Alkaline Battery) and minimum VIN=1.1V; VOUT=3.3V(IOUT=250mA); Low battery detective is needed. High efficiency (>90%) is needed. Solution: Choose AIC1610 for the solution For more information, please visit http://www.analog.com.tw 8

Selection Guide - Power Management Series Supervisory Detector Supply Current Detecting Part No. Supply Voltage (V) Threshold Output Delay Time (µS) Package max. (µA) Voltage Accuracy Hysteresis TO92, SOT23, AIC1680 1.5 ~ 10.0 4.8 ±2.5% 0.05 VDET 200 SOT23-5, SOT89 AIC809 0.9 ~ 6.0 3.0 ±1.5% - 20 (typ.) SOT23-3 AIC810 0.9 ~ 6.0 3.0 ±1.5% - 20 (typ.) SOT23-3 AIC811 0.9 ~ 6.0 3.0 ±1.5% - 20 (typ.) SOT23-5 AIC812 0.9 ~ 6.0 3.0 ±1.5% - 20 (typ.) SOT23-5 Supply Voltage max. Power Fail Voltage Part No. OVP Power Good Indicator Package (V) Indicator Reference AIC1686 16 3.9/5.5/13.2V 5V - - DIP16 NiMH/ NiCd Battery Charger 0DV Max. Charging Discharge DT/Dt Safety Timer Max. Voltage Part No. -DV Cutoff Cutoff Time Temp. Package Set Function Cutoff Cutoff Cutoff (of Safety Timer) Cutoff 3 modes AIC1781B Single Yes Yes Yes Yes Yes Yes SO16, DIP16 (1.5%, 3.7%, 6%) 1 mode AIC1783A Single -- Yes No Yes Yes No SO8, DIP8 (6%) 1 mode AIC1784 Single -- Yes Yes Yes Yes Yes SO8, DIP8 (6%) Li-ion Battery Protection Input Volt. Quiescent Power-Off Overdischarge Overcurrent Overcharge Part No. Package Range (V) Current (µA) Current (µA) Protection Protection Protection AIC1821 2.0~18.0 7 0.2 Yes Yes Yes, ± 50mV SOT23-5 AIC1802 2.0~18.0 10 0.2 Yes Yes Yes, ± 30mV SO8 AIC1803 2.0~18.0 13 1.3 Yes Yes Yes, ± 30mV SO16 AIC1804 2.0~18.0 17 2.2 Yes Yes Yes, ± 30mV SO16 Universal Power Switch Supply Voltage max. External Part No. RDS-ON (mΩ) Channel No. Current Limit (A) UVLO Package (V) Control AIC1520 7.0 120 1 0.6~1.25 N Y SOT89, TO92 AIC1521 7.0 120 1 0.6~1.25 Y Y SO8, MSOP8 AIC1523 7.0 120 1 0.6~1.25 Y N SO8, MSOP8 USB Power Switch Supply Voltage max. External Part No. RDS-ON (mΩ) Channel No. Current Limit (A) UVLO Package (V) Control AIC1525 7.0 70 1 0.7~1.25 Y Y DIP8, SO8 AIC1526 7.0 110 2 0.6~1.25 Y Y DIP8, SO8, MSOP8 AIC1528 7.0 110 2 1~2 Y Y DIP8, SO8, MSOP8 AIC1529 7.0 110 4 1~2 Y Y DIP16, SO16 High Current Driver Supply Voltage max. Input Voltage Output Voltage Part No. Channel No. Output Current (mA) Package (V) max. (V) max. (V) AIC2003 - 30 35 7 500 DIP16 AIC2803 - 30 50 8 500 DIP18 LB1268 8 12 10 3 1000 DIP8, SO8 9

Company Profile Overview Based in the Hsinchu Science Park of northern Taiwan, Analog Integrations Corporation (AIC) was founded in January 1992 and is an IC fabless company exclusively devoted to designing, testing, and marketing power management integrated circuits. After having successfully winning a sound reputation for excellence, quality, and customer responsiveness, we quickly emerged as a leading manufacture of analog integrated circuits in the Pacific Rim. The Taiwanese government bestowed the “National Award of Small and Medium Enterprises” upon AIC for its excellent management and significant dedication to innovation. Quality AIC is committed to providing customers with products of best-in-class quality and reliability performance. Our quality policy enforcement starts with product design and is fulfilled through development, testing and packaging of each product. As the first IC design company in Taiwan receiving IQNet certification, AIC focuses on manufacturing products with built-in quality in compliance with ISO-9001 and QS-9000. Furthermore, we have been certified as a Green Partner by SONY. Our extensive product testing ensures the highest standards of quality and reliability of all AIC products. Sales Channel AIC TAIPEI AIC CHINA (Shenzhen) 8F, No. 443, Rui-guang Rd., Nei-hu Dist., 5D, Jinrun Building, No. 6019 Shennan Blvd., Taipei, 114 Taiwan Shenzhen, China TEL: 886-2-8797-6777 TEL: 86-755-8272-0601 FAX: 886-2-8797-6788 FAX: 86-755-8272-0606 E-MAIL: sales@analog.com.tw E-MAIL: sales@analog.com.tw AIC JAPAN AIC CHINA (Suzhou) 4F, Advance Kamichi Bldg. Room 902B, Suzhou Sovereign Building , 1-2-7 Kita-shinagawa, No.8 Suhua Road, Suzhou Industrial Park, Shinagawa-ku,Tokyo, 140-0001, Japan Suzhou, China TEL: 81-3-5781-5430 TEL: 86-512-8885-2268 FAX: 81-3-5781-5431 FAX: 86-512-8885-2260 E-MAIL: sales@aic-j.com E-MAIL: sales@analog.com.tw AIC EUROPE AIC KOREA 20 Mercer Drive, BB6 7TX Great Harwood, Room 407, 4F, Is Tower 1337-14 Seocho Dong, United Kingdom Seocho Gu, Seoul, Korea TEL: 0044-12-5488-7346 TEL: 82-2-521-9828 E-MAIL: jvloo@aol.com FAX: 82-2-521-9861 E-MAIL: korea@analog.com.tw Vol. 0801