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Being an important and key semiconductor part, power management is crucial to portable devices. Power management IC usually consists of integrated type and separate type. Of which, the former can be called as PMU. In a multimedia player, the price of power management IC is only behind that of core decoding chip. In a handset, the cost of power management IC ranks the third after baseband and memory.
When it comes to portable electronic devices nowadays, handsets has the most shipment. Thereby, the market of handset power management IC draws much attention from lots of manufacturers.
PMU is the key component essentially necessary for handset semiconductor platform. Any manufacturer of mobile phone semiconductor platform owns PMU technologies and products, which is significantly valuable for domestic handset semiconductor manufacturers. In the field of handset baseband, manufacturers such as Spreadtrum and T3G etc should realize that handset semiconductor; baseband in particular, must carry out platform strategy. Only platform strategy could meet quicker shipment, lower cost and better performance. Besides baseband, MPU and RF are necessarily required as well.
Connection between Handset PMU and Handset Function Modules
Each function module in handsets requires interactive cooperation of divers PMU devices.
Power management system in mobile phone is illustrated below.
At present, while light LED drive and PMU are prevalent in handset power management. It is easy for manufacturers to access into LDO field. However, market opportunities are shrinking as the successive entry of Taiwanese manufacturers. In addition, more and more LDO are integrated in mobile phone PMU. Thus, experts advise to look on in LDO field. DC/DC converter system is also integrated in PMU. Nevertheless, it is hard to be integrated into digital camera and DV in which motor drive part resides. The purchasing rights for digital camera and DV groupware are almost under control of Japanese and South Korean manufacturers. Thereby, experts also advise to look on.
At present, 30 manufacturers or so are involved in the production of white-light LED drive IC worldwide.
With regard to handset PMU, it is a kind of IC which is integrated with several DC/DC converters (always 2-3), LDO (always 6-14), protection circuit and electric capacity test, etc. PMU merits lie in the simplified designing and less area covered in PCB board due to reduced components. PMU defects: 1. Low upper limit of supporting voltage; 2. inflexible application; 3. high cost.
PMU is mainly applied to the products with long lifecycle, single module and large shipment, such as smart mobile phone, PDA and IPOD. But domestically manufactured handsets are as usual changed externally instead of internally, mainboard in particular. Thus, the prospect of PMU is still promising.
There is another kind of PMU aiming at MP3, digital camera and PMP. For MP3 player manufacturers with more attention on dimensions and power consumption, integrated PMU is better than separate power management IC. As the focus of MP3 market rests with product price, manufacturers are mainly concerned about costs, resulting in few PMU for MP3 player in the market. However, MP3 competition, especially high-end MP3 will be of more size, more function and performance in the future. Therefore, power management IC aiming at MP3 still has growth potential. In addition, it is easy for manufacturers to enter this field because power management IC of MP3 player is comparatively simple. Currently, competition of this market is not so intense.
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Being an important and key semiconductor part, power management is crucial to portable devices. Power management IC usually consists of integrated type and separate type. Of which, the former can be called as PMU. In a multimedia player, the price of power management IC is only behind that of core decoding chip. In a handset, the cost of power management IC ranks the third after baseband and memory.
When it comes to portable electronic devices nowadays, handsets has the most shipment. Thereby, the market of handset power management IC draws much attention from lots of manufacturers.
PMU is the key component essentially necessary for handset semiconductor platform. Any manufacturer of mobile phone semiconductor platform owns PMU technologies and products, which is significantly valuable for domestic handset semiconductor manufacturers. In the field of handset baseband, manufacturers such as Spreadtrum and T3G etc should realize that handset semiconductor; baseband in particular, must carry out platform strategy. Only platform strategy could meet quicker shipment, lower cost and better performance. Besides baseband, MPU and RF are necessarily required as well.
Connection between Handset PMU and Handset Function Modules
Each function module in handsets requires interactive cooperation of divers PMU devices.
Power management system in mobile phone is illustrated below.
At present, while light LED drive and PMU are prevalent in handset power management. It is easy for manufacturers to access into LDO field. However, market opportunities are shrinking as the successive entry of Taiwanese manufacturers. In addition, more and more LDO are integrated in mobile phone PMU. Thus, experts advise to look on in LDO field. DC/DC converter system is also integrated in PMU. Nevertheless, it is hard to be integrated into digital camera and DV in which motor drive part resides. The purchasing rights for digital camera and DV groupware are almost under control of Japanese and South Korean manufacturers. Thereby, experts also advise to look on.
At present, 30 manufacturers or so are involved in the production of white-light LED drive IC worldwide.
With regard to handset PMU, it is a kind of IC which is integrated with several DC/DC converters (always 2-3), LDO (always 6-14), protection circuit and electric capacity test, etc. PMU merits lie in the simplified designing and less area covered in PCB board due to reduced components. PMU defects: 1. Low upper limit of supporting voltage; 2. inflexible application; 3. high cost.
PMU is mainly applied to the products with long lifecycle, single module and large shipment, such as smart mobile phone, PDA and IPOD. But domestically manufactured handsets are as usual changed externally instead of internally, mainboard in particular. Thus, the prospect of PMU is still promising.
There is another kind of PMU aiming at MP3, digital camera and PMP. For MP3 player manufacturers with more attention on dimensions and power consumption, integrated PMU is better than separate power management IC. As the focus of MP3 market rests with product price, manufacturers are mainly concerned about costs, resulting in few PMU for MP3 player in the market. However, MP3 competition, especially high-end MP3 will be of more size, more function and performance in the future. Therefore, power management IC aiming at MP3 still has growth potential. In addition, it is easy for manufacturers to enter this field because power management IC of MP3 player is comparatively simple. Currently, competition of this market is not so intense. |
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2005-2006 www.researchinchina.com All Rights Reserved |
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1 Fundamentals of handset power management 2 White light LED drive 2.1 Corporate overview of white light LED drive IC manufacturers 2.2 Principles of while light LED drive IC 2.3 Examples of series drive white light LED 3 PMU 3.1 Brief introduction to PMU 3.2 Platform adaptation power management IC 3.2.1 Qualcomm 3.2.2 Freescale 3.3 Non-platform power management IC design 3.4 Examples of power management IC (not for handsets) 4 Separate power management devices 4.1 Brief introduction to LDO 4.2 Case study of LDO 4.3 Inductance switch power 4.4 Capacitance switch power 5 Power management IC industry and market 5.1 Power management IC semiconductor market worldwide 5.2 Power management IC market in China 5.3 World’s power management IC industry 5.4 Power management IC industry in Taiwan 6 Power management IC manufacturers in Mainland China 6.1 Harbin SG Microelectronics Co., Ltd 6.2 CYT 6.3 Shenzhen Mei Xin 6.4 Xinyuan Technology 6.5 Xi'an China-core Microelectronics 6.6 State Microelectronics 6.7 APSemi 7 Power management IC manufacturers in Taiwan 7.1 Richtek 7.2 APEC 7.3 Anpec Electronics 7.4 GMT 7.5 AIC 7.6 System General 7.7 AME 7.8 Lattice Semiconductor 8 Overseas power management IC manufacturers 8.1 National Semiconductor 8.2 Texas Instrument 8.3 Maxim 8.4 FairChild Semiconductor 8.5 ON Semiconductor 8.6 Intersil 8.7 Ricoh 8.8 ST 8.9 Micrel
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2005-2008 www.researchinchina.com All Rights Reserved |
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Mobile phone function module and voltage range Structural module of mobile phone power system Typical applications of three basic devices in handset power management Power consumption proportion of 2G and 3G handset parts Principles of simplest white light LED drive Principles of Series LED IC design Application of MP1529 Application of RT9272 Typical application of TPS60230 Typical application of MAX1577Y Internal framework of MAX1577Y Typical application of LP3933 Internal framework of LP3933 Typical application of STCF02 Typical application of SP6686 Typical application of LTC3215 Internal framework of Qualcomm PM7500 Internal framework of PM6640 Internal framework of MC13783 Internal framework of AS3681 Internal framework of SMB113 Internal framework of SMB120 Internal framework of Ricoh R5313B PMP function module Internal framework of TPS68500 Internal framework of TPS65021 LDO products of Texas Instruments Typical application of Richtek RT9193 Internal framework of Richtek RT9193 Internal framework of Ricoh R1116 Inductance switch power IC products of Texas Instruments Internal framework of TPS6204X Typical application of TPS6204X Capacitance switch power IC products of Texas Instruments Typical application of TPS60110 Schematic map of passive OLED Drive Schematic map of active OLED drive Typical applications of TPS65130 of Texas Instruments Statistics on power IC market sizes in 2000-2004 Market shares of top ten power IC manufacturers worldwide in 2004 Income statistics of seven biggest power IC suppliers in Taiwan, 2003-2005Q3 Products & technical structure of eight biggest power IC designing companies in Taiwan, 2004 Applications of APS1006 and APS4070 In smart phones Composition of Richtek's R&D staff in 2005 Patents held by Richtek by 2005 The output of informational products worldwide in 2004-2006 Achievements of top seven power IC suppliers in Taiwan, 2003-2005Q3 Sales performance of Richtek in FY2003-2006 Major product output of Richtek in FY2003-2004 Sales volume of Richtek in FY2003-2004 Changes in research expenditure of Richtek in FY2001-2004 Product turnover of APEC in FY2003-2004 Global market size of power transistors, 2000-2005 Achievements of APEC, 2000-2005Q3 Sales performance of major products of APEC in FY2003-2005H1 Main product turnover and output value of Anpec Electronics, 2003-2004 Achievements of Anpec Electronics, 2000-2005Q3 Product sale of Anpec Electronics, 2003-2005H1 Sales performance of Analog Integrations, 2002-2005 Regional distribution of sales revenue of Analog Integrations in FY2002-2004 Main product technologies of AMMA Achievements of AMMA in FY2002-2005 Product sale volume of AMMA, 2003-2005H1 Power management products of Texas Instruments Proportion of TI's power management components by types Operating income and gross profit margin of Maxim, 2001-2005 Sales revenue of Maxim by regions worldwide in 2005 Product applications of Fairchild in mobile phones Handset power management solutions of Fairchild Semiconductor Worldwide plants and sales centers of Fairchild Semiconductor Sales revenue of power management products of On Semiconductor, 2002-2004 Sales income of On Semiconductor by product categories and application fields in 2004 Operating income of On Semiconductor by region in 2004 Sales revenue and gross profit margin of On Semiconductor, 2002-2004 Operating income of Intersil in FY2003 Product market of Intersil in FY2004 Net income of Ricoh in 2001-2005 Operating income of Ricoh by regions in 2005 Statistical drive modes adopted by white light LED drive IC manufacturers Power management IC sales turnover, sale volume and the average price of power management IC in Mainland China, 2002-2004 Brief introduction to SGMC Various products of SGMC Various products of CYT Product applications of CYT Corporate overview of Maxim Various products of Maxim Corporate overview of Samwin South Science and Technology Various products of Samwin South Science and Technology Corporate overview of China-core Microelectronics Various products of China-core Microelectronics Cooperative institutions of China-core Microelectronics Main products of Richtek Terminal application market of Richtek R&D technologies and products of Richtek in recent years Main clients of Richtek Raw material suppliers of Richtek Main business of APEC Current product varieties of APEC Raw material supply of APEC in 2004 Product varieties of Anpec Electronics Classification of product applications of Anpec Electronics The contribution of Major clients to sales revenue of Anpec Electronics in 2002-2003 Competitive opponents of Anpec Electronics Technical achievements of GMT Various products of GMT Product applications of GMT
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