M
MIC24045 EVALUATION
BOARD USER’S GUIDE
2017 Microchip Technology Inc.
DS50002619A-page 7
Chapter 1. Product Overview
1.1
INTRODUCTION
This chapter provides an overview of the MIC24045 Evaluation Board (ADM00826)
and covers the following topics:
- MIC24045 Device Short Overview
- MIC24045 Evaluation Board Overview
- What the MIC24045 Evaluation Board User’s Guide Contains
1.2
MIC24045 DEVICE SHORT OVERVIEW
The MIC24045 is a I
2
C programmable, high-efficiency, wide-input range, 5A
synchronous step-down regulator. The MIC24045 is perfectly suited for multiple
voltage rail application environments found in enterprise computing and
telecommunication systems. For the MIC24045 device, the user can program, via I
2
C,
various parameters such as Output Voltage, Switching Frequency, Soft-Start slope,
Margining, Current Limit values and Start-up Delay. The MIC24045 wide switching
frequency adjustment range, valley current-mode control technique, high-performance
error amplifier and external compensation allow the best trade-offs between
high-efficiency and small solution size. The MIC24045 device supports extensive
diagnostics and status information through I
2
C. Programmable cycle-by-cycle current
limit value helps optimize the size of the inductor in each particular application.
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.
FIGURE 1-1:
MIC24045 Typical Application.
LX
BST
V
OUT
0.64V to 5.25V
V
DDA
ADR1
A
GND
ADR0
COMP
EN
OUTSNS
MIC24045
V
IN
V
IN
4.5V to 19V
P
GND
V
DDP
V
INLDO
V
DDA
Address
Selection
V
DDA
V
DDA
ENABLE
PG
P
GOOD
SCL
SDA
I
2
C
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