MIC24045-DIYFL by Microchip Technology

I2C Programmable 5A Synchronous Buck Regulator

Status: Active
Series: MIC24045
RoHS: Compliant
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The MIC24045 is an I2C-programmable, high-efficiency, wide input range, 5A synchronous step-down regulator. The MIC24045 is perfectly suited for multiple voltage rail application environments, typically found in computing and telecommunication systems. In the MIC24045 various parameters can be programmed via I2C, such as output voltage, switching frequency, soft-start slope, margining, current limit values and start-up delays. The wide switching frequency adjustment range, valley-current mode  control technique, high-performance error amplifier,and external compensation allow for the best trade-offs between high efficiency and the smallest possible solution size. The MIC24045 supports extensive diagnostics and status information through I2C.The MIC24045 pin-out is compatible with the MIC24046 pin-strapping programmable regulator pin-out, such that I2C-based implementations can be easily converted into pin-programmable ones. The MIC24045 is available in thermally-efficient, space-saving 20-pin 3 mm x 3 mm FQFN package with an operating junction temperature range from -40 C to +125 C.

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Features

4.5V to 19V input voltage range
5A (maximum) output current
0.64V to 5.25V in 5 mV, 10 mV, 30 mV and 50 mV Steps
High Efficiency (>95%)
Soft-Start: 0.16, 0.38, 0.76 and 1.5V/ms ramp rates
Switching Frequency: 310 kHz, 400 kHz, 500 kHz, 570 kHz, 660 kHz, 780 kHz, 1 MHz, 1.2 MHz
Current Limits for 2A, 3A, 4A and 5A loads
±1% output voltage accuracy
Supports safe start-up with pre-biased output
Internal soft-start and thermal shutdown protection
Hiccup-mode short-circuit protection
Available in a 20-pin 3mm x 3mm QFN package
-40°C to +125°C junction temperature range

Specifications

Regulator Type Step Down (Buck)
pricing 0
Supported Output 0
Minimum Input Voltage (V) 0
Maximum Input Voltage (V) 19
Output Current (mA) Max 0
Maximum Frequency (kHz) 0
Vref (V) 0
Duty Cycle Min (%) 0
Duty Cycle Max (%) 90
Switching Frequency (kHz) 1200
Input Voltage Range Min 4.5
Input Voltage Range Max 19
Output Current 5000
Temp Range Min -40
Temp Range Max +125
Vout Min (V) 0.65
Vout Max (V) 5.5
Light Load Efficiency Mode No
Switch current (A) typ 0
Automotive Qualified No
SHUTDOWN Current (µA) (Typ) 0
# of Outputs 1
Vfb (V) 0.65
Synchronous Rectifier Yes

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0221
Shipping Weight (kg) 0.05
Lead Count 20
Package Type VQFN
Package Width or Size 3x3x0.9mm
Soldering Composition Matte Tin


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MIC24045-DIYFL?

Additional datasheets, footprints and schematics for MIC24045-DIYFL are listed on our Part Details page. You can also find images and similar parts to MIC24045-DIYFL on this page.

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Is the MIC24045-DIYFL RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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