CM3406DS View Datasheet(PDF) - Monolithic Power Systems
Part Name
Description
View to exact match
CM3406DS Datasheet PDF : 8 Pages
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TM
The Future of Analog IC Technology TM
DESCRIPTION
The CM3406 is a monolithic step-down switch
mode converter with a built-in internal power
MOSFET. It achieves 1.5A continuous output
current over a wide input supply range with
excellent load and line regulation.
Current mode operation provides fast transient
response and eases loop stabilization. Fault
condition protection includes cycle-by-cycle
current limiting and thermal shutdown. The
CM3406 requires a minimum number of readily
available standard external components.
EVALUATION BOARD REFERENCE
Board Number
EV3406DS-00A
Dimensions
2.3”X x 1.4”Y x 0.5”Z
TYPICAL APPLICATION
C4
10nF
VIN
12V
3
2
ENABLE
SHUTDOWN
OPEN
NOT USED
8 EN
1 NC
CM3406
4
SW
6
FB
GND
COMP
5
7
C6
OPEN
C3
4.7nF
D1
B230A
FEATURES
• 1.5A Continuous Output Current
• 0.2Ω Internal Power MOSFET Switch
• Stable with Low ESR Output Ceramic Capacitors
• Up to 95% Efficiency
• 20μA Shutdown Mode
• Fixed 210KHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Wide 4.75V to 22V Operating Input Range
• Output Adjustable from 1.23V to 18V
• Programmable Under Voltage Lockout
• Available in 8-Pin SO and PDIP Packages
APPLICATIONS
• Distributed Power Systems
• Battery Chargers
• Pre-Regulator for Linear Regulators
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
VOUT
2.5V/1.5A
CM3406_TAC_S01
Efficiency vs
Load Current
100
VOUT = 5V
95
90
85
80
75
VOUT = 3.3V VOUT = 2.5V
70
65
60
55
50
45
VIN = 12V
40
0.25 0.50 0.75 1.00 1.25 1.50
LOAD CURRENT (A)
CM3406-EC01
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