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MIC33164

4MHz 1A Synchronous Buck Regulator Power Module w/100% Duty Cycle

Status: End of Life

Features:

  • Integrated MOSFETs and inductor
  • 100% duty cycle
  • 4MHz PWM operation in continuous mode
  • 1A output current
  • Low output voltage ripple
  • 85% typical efficiency at 1mA, up to 93% peak efficiency
  • Ultra-fast transient response
  • Advanced copper lead frame design provides superior thermal performance
  • Low radiated emission (EMI) per EN55022, class B
  • Adjustable output voltage 0.7V to 5V
  • Thermal shutdown and current-limit protection
  • Configurable soft-start with pre-bias start-up capability
  • Auto discharge of 180Ω (MIC33164 only)
  • Low profile 2.5mm × 3.0mm x 1.1mm QFN package
  • 0.1µA shutdown current
  • 33µA quiescent current
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Overview
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Development Environment
RoHS Information
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Device Overview

Summary

The MIC33163/4 is a highly efficient synchronous buck regulator with integrated inductor which provides the optimal trade-off between footprint and efficiency. The MIC33163/4 operates at 4MHz switching frequency and provides up to 1A output current. In addition, the 100% duty cycle and HLL mode of operation delivers very-high efficiency at light loads and ultra-fast transient response which makes the MIC33163/4 perfectly suited for any space constrained application and great alternative for low dropout regulators. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. The MIC33163/4 provides a small compact total solution size of 4.6mm x 7mm with very few tiny external components. At higher loads, the MIC33163/4 provides a constant switching frequency around 4MHz while achieving peak efficiencies up to 93%. It also includes under-voltage lockout to ensure proper operation under power-sag conditions, internal softstart to reduce inrush current, fold-back current limit, power good indicator and thermal shutdown. The MIC33163/4 is available in 20-pin 2.5mm × 3.0mm x 1.1mm QFN package with an operating junction temperature range from –40°C to +125°C.

Please consider this device MIC33153

Additional Features
    • Integrated MOSFETs and inductor
    • 100% duty cycle
    • 4MHz PWM operation in continuous mode
    • 1A output current
    • Low output voltage ripple
    • 85% typical efficiency at 1mA, up to 93% peak efficiency
    • Ultra-fast transient response
    • Advanced copper lead frame design provides superior thermal performance
    • Low radiated emission (EMI) per EN55022, class B
    • Adjustable output voltage 0.7V to 5V
    • Thermal shutdown and current-limit protection
    • Configurable soft-start with pre-bias start-up capability
    • Auto discharge of 180Ω (MIC33164 only)
    • Low profile 2.5mm × 3.0mm x 1.1mm QFN package
    • 0.1µA shutdown current
    • 33µA quiescent current

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC33164YGJ-T5
0.855400
20
TQFN
2.5x3.0x1.15mm
Matte Tin
e3
MIC33164YGJ-TR
0.855400
20
TQFN
2.5x3.0x1.15mm
Matte Tin
e3
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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