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MIC2193

Features: ` 2.9V to 14V input voltage range` 400kHz oscillator frequency` PWM current mode control` 100% maximum duty cycle`Front edge blanking` 4 output drivers` Cycle-by-cycle current limiting` Frequency foldback short circuit protection` 8 lead SOIC packageApplication· Point of load power suppl...

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MIC2193: Features: ` 2.9V to 14V input voltage range` 400kHz oscillator frequency` PWM current mode control` 100% maximum duty cycle`Front edge blanking` 4 output drivers` Cycle-by-cycle current limiting` Fr...

MIC2193 Data Sheet

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Part Number:
MIC2193
Supply Ability:
5000

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  • 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:

` 2.9V to 14V input voltage range
` 400kHz oscillator frequency
` PWM current mode control
` 100% maximum duty cycle
`Front edge blanking
` 4 output drivers
` Cycle-by-cycle current limiting
` Frequency foldback short circuit protection
` 8 lead SOIC package




Application

· Point of load power supplies
· Distributed power systems
· Wireless Modems
· ADSL line cards
· Servers
· Step down conversion in 3.3V, 5V, and 12V systems
· 1-and 2-cell Li Ion battery operated equipment




Pinout

Connection Diagram




Specifications

Supply Voltage (VIN)..................................................15V
Digital Supply Voltage (VDD)........................................7V
Comp Pin Voltage (VCOMP).......................... -0.3V to +3V
Feedback Pin Voltage (VFB)......................... -0.3V to +3V
Current Sense Voltage (VIN- VCS).............. -0.3V to +1V
Power Dissipation (PD )...................285mW @ TA = 85
Ambient Storage Temp............................-65 to +150
ESD Rating Note 3.....................................................2kV




Description

Micrel's MIC2193 is a high efficiency, PWM synchronous buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage range allows it to efficiently step down voltages in 3.3V, 5V, and 12V systems as well as 1- or 2-cell Li Ion battery powered applications.

The MIC2193 solution saves valuable board space. The device is housed in the space-saving SO-8 package, whose low pin-count minimizes external components. Its 400kHz PWM operation allows a small inductor and small output capacitors to be used. The MIC2193 can implement all-ceramic capacitor solutions.

The MIC2193 drives a high-side P-channel MOSFET, eliminating the need for high-side boot-strap circuitry. This feature allows it to achieve maximum duty cycles of 100%, which can be useful in low headroom applications. A low output driver impedance of 4 allows the MIC2193 to drive large external MOSFETs to generate a wide range of output currents.

The MIC2193 is available in an 8 pin SOIC package with a junction temperature range of 40°C to +125°C.






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