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MIC2203

Features: • Input voltage range: 2.3V to 5.5V• Output voltage adjustable down to 0.5V• 300mA output current• Constant 1MHz PWM switching frequency• > 95% efficiency• < 1mA switching supply current• < 350A static quiescent current• < 1A sh...

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MIC2203: Features: • Input voltage range: 2.3V to 5.5V• Output voltage adjustable down to 0.5V• 300mA output current• Constant 1MHz PWM switching frequency• > 95% efficiency&...

MIC2203 Data Sheet

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Part Number:
MIC2203
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/26

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Product Details

Description



Features:

• Input voltage range: 2.3V to 5.5V
• Output voltage adjustable down to 0.5V
• 300mA output current
• Constant 1MHz PWM switching frequency
• > 95% efficiency
• < 1mA switching supply current
• < 350A static quiescent current
• < 1A shutdown current
• All-ceramic capacitors
• Easily synchronized to external clock
• SYNCLOCK feature to daisy chain multiple devices
• Thermal shutdown and current limit protection
• 10 pin MSOP, and 3mm x 3mm MLF-10L package options
• 40ºC to +125ºC junction temperature range




Application

• 802.11 WLAN modules
• MD players
• MP3 players




Pinout

Connection Diagram




Specifications

Supply Voltage (VIN) ........................6V
Output Switch Voltage (VSW)....................6V
Logic Input Voltage (VEN, VSYNC_IN)............VIN to 3V
Power Dissipation .......................Note 5
Storage Temperature (Ts) ............65°C to +150°C
ESD Rating(3)...........................2kV




Description

The Micrel MIC2203 is a high efficiency 1MHz PWM synchronous buck switching regulator. It features low noise constant frequency PWM operation with a low dynamic supply current of <1mA. The low noise and efficient operation both make the MIC2203 well suited for sensitive RF, and audio power applications.

The MIC2203 operates from 2.3V to 5.5V input and can supply over 300mA of output current with output voltages down to 0.5V. Additionally, it can be synchronized to an external clock, or multiple MIC2203s can easily be daisy-chained with the SYNCLOCK feature.

The MIC2203 has a high loop bandwidth with corresponding ultra fast transient response times. MIC2203 reduces the output capacitor size, and is very useful when powering applications that require fast dynamic response such as CPU cores and RF circuitry in high performance cellular phones and PDAs.

The MIC2203 is available in 10-pin MSOP and
3mm x 3mm MLF?10L package options with an operating junction temperature range from ?0 to 125.






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