MP1492 Datasheet, PDF (1/18 Pages) Monolithic Power Systems – 2A, 4.2V-16V Input, Fast Transient Synchronous Step-down Converter

The Future of Analog IC Technology
DESCRIPTION
The MP1492 is a fully integrated, high–
efficiency 2A synchronous rectified step-down
converter. The MP1492 operates at high
efficiency over a wide output current load range.
Adaptive Constant-On-Time (COT) control
mode provides fast transient response, eases
loop stabilization, and operates with a low-cost
electrolytic capacitor.
The MP1492 requires a minimum number of
readily available standard external components
and is available in an 8-pin SOIC ROHS
compliant package.
MP1492
2A, 4.2V-16V Input, Fast Transient
Synchronous Step-down Converter
FEATURES
• Wide 4.2V to 16V Operating Input Range
• 2A Output Current
• Adaptive COT for Fast Transient
Response
• Low R_DS (ON) Internal Power MOSFETs
• Proprietary Switching Loss Reduction
Technique
• Programmable Switching Frequency
• OCP, SCP, OVP, UVP Protection and
Thermal Shutdown
• Output Adjustable from 0.805V to 13V
APPLICATIONS
• Digital Set Top Boxes
• Flat Panel Television and Monitors
• Distributed Power Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. “MPS” and “The
Future of Analog IC Technology” are Registered Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
VIN
R₇
453k
499k
ON/OFF
1 _IN
4
BST
MP1492
SW ³
8 _FREQ
5
BYP
6 _EN
FB ⁷
GND
2
VOUT 2.5V
R1
41k
R2
20k
MP1492 Rev. 1.1
www.MonolithicPower.com
1
3/13/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.