MIC33M656
EVALUATION BOARD
USER’S GUIDE
2019 Microchip Technology Inc.
DS50002914A-page 9
Chapter 1. Product Overview
1.1
INTRODUCTION
This chapter provides an overview of the MIC33M656 Evaluation Board and covers the
following topics:
•
•
What is the MIC33M656 Evaluation Board?
•
Contents of the MIC33M656 Evaluation Board Kit
1.2
MIC33M656 SHORT OVERVIEW
The MIC33M656 is an I
2
C programmable, high-efficiency, low-voltage input,
6A current, synchronous step-down regulator power module with integrated inductor.
The Constant-On-Time (COT) control architecture with HyperLight Load
®
(HLL) pro-
vides very high efficiency at light loads, while still having ultra-fast transient response.
The user can program, via the I
2
C interface, various parameters, such as output
voltage, on-time, soft start slope, high-side current limit, HLL or Forced PWM mode of
operation. The 2.4V to 5.5V input voltage range, low shutdown and quiescent currents
make the MIC33M656 ideal for single-cell Li-Ion, battery-powered applications.
An open-drain Power Good (PG) output is provided to indicate when the output voltage
is within 9% of regulation, and facilitates output voltage monitoring and sequencing.
When set in Shutdown mode (EN = GND), the current consumption of MIC33M656 is
reduced to 1.5 µA (typical).
The MIC33M656 is available in a thermally efficient, 53-Lead, 6 mm x 10 mm x 3 mm
QFN package, with an operating junction temperature range from -40°C to +125°C.
More detailed information regarding the capabilities of the MIC33M656 are available in
the
“MIC33M656 Data Sheet”
.
FIGURE 1-1:
Typical MIC33M656 Step-Down Application.
C3
47 µF
C4
47 µF
V
OUT
Enable
V
IN
2.4V to 5.5V
C
10 µF
1.0V/6A
V
IN
SCL
SDA
PG
SW
MIC33M656
OUT
V
OUT
PGND
AGND
PG
SCL
SDA
EN
PV
IN
AUX_PV
IN
SV
IN
SW
AUX_GND
