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MIC2829 数据表(PDF) 1 Page - Micrel Semiconductor |
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MIC2829 数据表(HTML) 1 Page - Micrel Semiconductor |
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1 / 52 page  MIC2829 3G/4G HEDGE/LTE PMIC with Six Buck Converters, Eleven LDOs and SIM Card Level Translation HyperLight Load is a trademark of Micrel, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( 408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com May 2010 M9999-051410-B General Description The MIC2829 is a highly integrated Power Management Integrated Circuit (PMIC) designed for 3G/4G (HEDGE/LTE and WiMAX) USB wireless applications. It is a complete power management solution which provides power to processors, dual standard RF (such as HEDGE/LTE or WiMAX) transceivers and power amplifiers, memory, USB-PHY associated I/O interfaces and other system requirements. The MIC2829 incorporates six DC/DC buck converters, eleven LDOs and digital level shifters for SIM Card support inside a single package. Four of the six integrated DC/DC buck converters incorporate HyperLight Load TM (HLL) technology. Each of these buck regulators operate at high switching speed in PWM mode (4MHz/2.5MHz) and maintain high efficiency in light load conditions. The high speed PWM operation allows the use of very small inductors and capacitors minimizing board area while the HLL mode enables 87% efficiency at 1mA. HyperLight Load TM technology also has unmatched load transient response to support advance portable processor requirements. The remaining two DC/DC buck converters support 100% duty cycle operation and can deliver greater than 96% efficiency. This allows pre-regulation of system LDOs for high efficiency power system partitioning. The MIC2829 has eleven low dropout regulators (LDOs). Five general purpose LDOs provide low dropout, excellent output accuracy of ±3% and only require 40µA of ground current for each to operate. The remaining six are high performance Low Noise Regulators (LNRs) which provide high PSRR and low output noise for sensitive RF subsystems. Each LNR requires only 20µA of ground current to operate. The MIC2829 also has three high speed level shifters for digital SIM Card signal translation and a 50mA SIM power supply. The MIC2829 is available in a 76-pin 5.5mm x 5.5mm LGA and an 85-pin 5.5mm x 5.5mm FBGA package. The operating junction temperature range for both packages is from –40 °C to +125°C. Data sheets and support documentation can be found on Micrel’s website at: www.micrel.com. Features • Input voltage range: 2.7V to 5.5V Six DC Step-Down Regulators • Four HyperLight LoadTM step-down regulators - Low quiescent current – typical 40µA - DC1: 4MHz / 1000mA - DC2: 4MHz / 300mA (with voltage scaling) - DC3: 2.5MHz / 600mA - DC4: 4MHz / 600mA (with adjustable delay POR) • Two PWM step-down regulators - DC5 and DC6: Fixed 2MHz / 800mA - 100% duty cycle Eleven Low Dropout Regulators (LDOs) • Five general purpose 200mA LDOs (LDO1-4, LDO11) - LDO3: 38mV dropout at 100mA - LDO2 and LDO4: 80mV dropout at 100mA - LDO1 and LDO11: 115mV dropout at 100mA - Output accuracy ± 3% - 40µA ground current • Six high performance 200mA LNRs (LDO5-10) - High PSRR 70dB at 1kHz - Low noise: 20µVRMS - 40mV dropout at 100mA - Output accuracy ± 3% - 20µA ground current • SIM card level translator • SIM card power supply (50mA) • Thermal shutdown and current limit protection • UVLO – under voltage lockout protection • 76-pin 5.5mm x 5.5mm LGA package • 85-pin 5.5mm x 5.5mm FBGA package • –40°C to +125°C operating junction temperature range Applications • 4G LTE USB modems • 3G/4G (HEDGE/LTE) wireless chipsets • WiMAX modems • Express card modems • UMPC/notebook PC wireless data communications • Portable applications |
类似零件编号 - MIC2829 |
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类似说明 - MIC2829 |
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