Microchip MIC28514T-E/PHA, Buck/Boost Converter Buck Converter 5A, Adjustable, 880 kHz 32-Pin, VQFN

  • RS Stock No. 175-3252
  • Mfr. Part No. MIC28514T-E/PHA
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): US
Product Details

The MIC28514 is an adjustable frequency, synchronous buck regulator that features a unique adaptive on-time control architecture. The MIC28514 operates over an input supply range of 4.5V to 75V, and provides a regulated output of up to 5A of output current. The output voltage is adjustable down to 0.6V with an accuracy of ±1%. Hyper Speed Control architecture allows for an ultra-fast transient response, while reducing the output capacitance, and also makes high-VIN/low-VOUT operation possible.

Input voltage range: 4.5V to 75V
Adjustable output from 0.6V to 32V (Limited by duty cycle)
High Current capability of 5A
High Voltage Internal LDO for single supply operation8
Operation with both internal and external VDD
Output current up to 5A
Supports start up to pre-bias output
Internal compensator for tight output regulation
Enable function for low stand-by current
Programmable current limit and hiccup short circuit protection
Thermal shut down with hysteresis

Attribute Value
Regulator Function Buck Converter
Maximum Output Current 5A
Number of Outputs 1
Line Regulation 0.1 %
Load Regulation 0.04 %
Mounting Type Surface Mount
Package Type VQFN
Pin Count 32
Output Type Adjustable
Maximum Switching Frequency 880 kHz
Switching Regulator Yes
Efficiency 95%
Dimensions 6 x 6 x 0.85mm
Height 0.85mm
Maximum Operating Temperature +125 °C
Maximum Output Voltage 32 V
Length 6mm
Minimum Output Voltage 0.6 V
Minimum Operating Temperature -40 °C
Minimum Input Voltage 4.5 V
Width 6mm
Maximum Input Voltage 75 V
Temporarily out of stock - back order for despatch 07/10/2020, delivery within 4 working days from despatch date
Price Each (In a Pack of 2)
SGD 3.80
(exc. GST)
SGD 4.07
(inc. GST)
Per unit
Per Pack*
2 - 8
10 - 48
50 - 98
100 +
*price indicative
Packaging Options:
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