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MIC2808 数据表 (PDF) - Micrel Semiconductor

MIC2808 Datasheet PDF - Micrel Semiconductor
部件名 MIC2808
下载  MIC2808 下载

文件大小   482.29 Kbytes
  18 Pages
制造商  MICREL [Micrel Semiconductor]
网页  http://www.micrel.com
标志 MICREL - Micrel Semiconductor
功能描述 RF PA Power Management IC 2MHz, 600mA DC/DC w/DAC Input and Bypass Switch, Dual Low Noise 200mA/30mA LDO Regulators

MIC2808 Datasheet (PDF)

Go To PDF Page 下载 数据表
MIC2808 Datasheet PDF - Micrel Semiconductor

部件名 MIC2808
下载  MIC2808 Click to download

文件大小   482.29 Kbytes
  18 Pages
制造商  MICREL [Micrel Semiconductor]
网页  http://www.micrel.com
标志 MICREL - Micrel Semiconductor
功能描述 RF PA Power Management IC 2MHz, 600mA DC/DC w/DAC Input and Bypass Switch, Dual Low Noise 200mA/30mA LDO Regulators

MIC2808 数据表 (HTML) - Micrel Semiconductor

Back Button MIC2808 Datasheet HTML 1Page - Micrel Semiconductor MIC2808 Datasheet HTML 2Page - Micrel Semiconductor MIC2808 Datasheet HTML 3Page - Micrel Semiconductor MIC2808 Datasheet HTML 4Page - Micrel Semiconductor MIC2808 Datasheet HTML 5Page - Micrel Semiconductor MIC2808 Datasheet HTML 6Page - Micrel Semiconductor MIC2808 Datasheet HTML 7Page - Micrel Semiconductor MIC2808 Datasheet HTML 8Page - Micrel Semiconductor MIC2808 Datasheet HTML 9Page - Micrel Semiconductor MIC2808 Datasheet HTML 10Page - Micrel Semiconductor Next Button 

MIC2808 产品详情

General Description
The MIC2808 integrates a high performance 600mA DC/DC step down regulator intended for powering a power amplifier (PA) in a mobile phone with dual low noise low dropout (LDO) regulators for the rest of the RF section. Optimized for low noise performance, the MIC2808 improves efficiency in the handset without compromising quality.

Features
• 2.7V to 5.5V input voltage range
• Stable with ceramic output capacitors
• Tiny 16-pin 2.0mm x 2.5mm TMLF® Package
• Thermal shutdown protection
• Current limit protection

RF PA Power Supply DC/DC Regulator
• Adjustable output power supply – DAC controlled
    – VOUT = VDAC x 3
• Bypass mode operation
    – Internal 95mΩ switch between PVIN and OUT pins
    – VDAC > 1.2V
• Up to 600mA output current in PWM mode
• 100% duty cycle operation for maximum efficiency
• Tiny 4.7µH, 1µF output inductor and capacitor
• Low-noise 2MHz PWM operation
• >90% efficiency

Dual Low Noise Low Dropout Regulators
• High accuracy – ±2% over temperature
• High PSRR – greater than 70dB
• Very low output noise – 32µVrms
• LDO1 – 200mA output current capability
• LDO2 – 30mA output current capability

Applications
• CDMA2000 mobile phones
• UMTS/WCDMA mobile phones
• WiMAX/Wibro modules
• WiFi modules
• Power amplifier modules (PAMs) with linear PAs




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