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MIC2169

Replaced by MIC2169A

Status: In Production

Features:

  • 3V to 14.5V input voltage range
  • Adjustable output voltage down to 0.8V
  • Up to 95% efficiency
  • 500kHz PWM operation
  • Adjustable current limit senses high-side N-Channel MOSFET current
  • No external current-sense resistor
  • Adaptive gate drive increases efficiency
  • Externally compensated
  • Overvoltage protection protects the load in fault conditions
  • Dual mode current limit speeds up recovery time
  • "Hiccup" mode short-circuit protection
  • Small size MSOP 10-lead package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC2169 is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP-10 package. The MIC2169 allows compact DC/DC solutions with a minimal external component count and cost.

The MIC2169 operates from a 3V to 14.5V input, without the need of any additional bias voltage. The output voltage can be precisely regulated down to 0.8V. The adaptive all N-Channel MOSFET drive scheme allows efficiencies over 95% across a wide load range.

The MIC2169 senses current across the high-side N-Channel MOSFET, eliminating the need for an expensive and lossy current-sense resistor. Current limit accuracy is maintained by a positive temperature coefficient that tracks the increasing RDS(ON) of the external MOSFET. Further cost and space are saved by the internal in-rush-current limiting digital soft-start.

The MIC2169 is available in a 10-pin MSOP package, with a wide junction operating range of -40°C to +125°C.

Additional Features
    • 3V to 14.5V input voltage range
    • Adjustable output voltage down to 0.8V
    • Up to 95% efficiency
    • 500kHz PWM operation
    • Adjustable current limit senses high-side N-Channel MOSFET current
    • No external current-sense resistor
    • Adaptive gate drive increases efficiency
    • Fast transient response
      • Externally compensated
    • Overvoltage protection protects the load in fault conditions
    • Dual mode current limit speeds up recovery time
    • "Hiccup" mode short-circuit protection
    • Small size MSOP 10-lead package
Parametrics
Name
Value
Supported Topologies
Sync. Buck
Supported Outputs
1
Minimum Input Voltage (V)
3
Maximum Input Voltage (V)
14.5
Minimum Output Voltage (V)
0.8
Typical Tolerance (%)
±1
Duty Cycle Max (%)
0.92
Operating Frequency (Hz)
500K
Soft Start
True
Internal Voltage Bias
True
Enable Pin
True
Current Limit / Short Circuit Protection
True
Operating Supply Current (mA)
1.5
Package
10/MSOP

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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
MIC2169BYMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2169BYMM-TR
0.024500
0.431180
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2169BYMME
0.024800
0.135600
10
MSOP
3x3x1.0mm
Matte Tin
e3
MIC2169BYMME-TR
0.024800
0.206148
10
MSOP
3x3x1.0mm
Matte Tin
e3
MIC2169AYMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2169AYMM-TR
0.024500
0.431180
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2169YMM
0.024500
0.135600
10
MSOP
3x3x1.0mm
NiPdAu
e4
MIC2169YMM-TR
0.024500
0.431180
10
MSOP
3x3x1.0mm
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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