MIC22405YML EV Micrel, MIC22405YML EV Datasheet - Page 2

• Manufacturer Part Number: MIC22405YML EV
• Description: Power Management IC Development Tools 4A Integrated Switch Synchronous Buck Regulator w/ Pre-Bias - Evaluation Board
• Manufacturer: Micrel
• Type: DC/DC Converters, Regulators & Controllersr

Specifications of MIC22405YML EV

• Product: Evaluation Boards
• Tool Is For Evaluation Of: MIC22405
• Input Voltage: 2.9 V to 5.5 V
• Output Voltage: 0.7 V
• Description/function: Evaluation Board
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Output Current: 4 A
• For Use With: MIC22405

Evaluation Board Features
Enable/Delay (EN/DLY)
Enable/Delay allows delayed turn on of the MIC22405.
Install a capacitor in location C4 to increase the start-up
delay of the MIC22405.
Shutdown Input (SHDN)
SHDN allows enable/disable of the MIC22405 with an
external logic signal. To activate the shutdown feature
install components into the locations labeled Q1 and R5
(component recommendations are listed in the Bill of
Materials later in this document). With the components
installed, force SHDN high to disable the MIC22405, and
low to allow the MIC22405 to operate normally.
Micrel, Inc.
July 2011
2
Ramp Control (RC)
Ramp control allows slowing the slew rate of the
MIC22405 output. Increase the value of capacitor C6 to
reduce the slew rate.
Power Good Output (PG)
Open drain output PG pulls low when the output voltage of
the MIC22405 is out of specification. PG is pulled up to V
by a 47.5kΩ resistor.
Switch Voltage (V
Test point V
node. V
resistor R7.
SW
SW
is isolated from the switch node by 49.9Ω
is provided to monitor the internal switching
SW
)
MIC22405 Evaluation Board
M9999-071911-B
IN