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MIC2150

14.5V, Two Phase Synchronous Buck Controller IC, 500 KHZ

Status: In Production

Features:

  • Dual Synchronous Buck Control IC with outputs switching 180° out-of-phase
  • 4.5V to 14.5V input voltage range
  • Adjustable output voltages down to 0.7V
  • 1% output voltage accuracy
  • MIC2150: 500kHz PWM operation
  • MIC2151: 300kHz PWM operation
  • Adaptive gate drive allows efficiencies over 95%
  • Adjustable current limit with no sense resistor Senses low-side MOSFET current
  • Internal drivers allow 20A per phase
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2150/1 are simple 2-phase dual-output synchronous buck control ICs featuring small size and high efficiency. The ICs implement PWM control at 500kHz (MIC2150) or 300kHz (MIC2151), with the outputs switching 180° out of phase. The result of the out-of-phase operation is 1MHz input ripple frequency with ripple current cancellation, minimizing the required input filter capacitance. A 1% output voltage tolerance allows the maximum level of system performance. Internal drivers with adaptive gate drive allow the highest efficiency with the minimum external components. A dual threshold enable pin, matched soft-start pins, and a power good output are provided, allowing a high level of control. The MIC2150/1 has a junction operating range from -40°C to +125°C.

Additional Features
    • Dual Synchronous Buck Control IC with outputs switching 180° out-of-phase
    • 4.5V to 14.5V input voltage range
    • Adjustable output voltages down to 0.7V
    • 1% output voltage accuracy
    • MIC2150: 500kHz PWM operation
    • MIC2151: 300kHz PWM operation
    • Adaptive gate drive allows efficiencies over 95%
    • Adjustable current limit with no sense resistor Senses low-side MOSFET current
    • Internal drivers allow 20A per phase
Parametrics
Name
Value
Supported Topologies
Sync. Buck
Supported Outputs
2
Minimum Input Voltage (V)
4.5
Maximum Input Voltage (V)
14.5
Minimum Output Voltage (V)
0.7
Typical Tolerance (%)
±1
Duty Cycle Max (%)
0.8
Operating Frequency (Hz)
500K
Power Good Signal
True
Soft Start
True
Internal Voltage Bias
True
Enable Pin
True
Current Limit / Short Circuit Protection
True
Input UVLO Typ (V)
2.03
Operating Supply Current (mA)
4.2
Iq Off (µA)
50
Package
24/4x4 MLF

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2150YML-TR
0.042200
0.204000
24
VQFN
4x4x0.9mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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