MPQ2451
MPQ2451 is Industrial/Automotive-Grade 36V 2MHz 0.6A Step-Down Converter manufactured by Monolithic Power Systems.
DESCRIPTION
The MPQ2451 is a high frequency, step-down, switching regulator with an integrated highvoltage high-side power MOSFET. It efficiently provides up to a 0.6A output with current-mode control for fast loop response.
The wide 3.3V-to-36V input range acmodates a variety of automotive step-down applications, and the 3μA shutdown-mode quiescent current allows use in battery-powered applications.
The MPQ2451 achieves high power-conversion efficiency over a wide load range by scaling down the switching frequency under light-load condition to reduce the switching and gate driving losses.
Frequency fold-back prevents inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation.
The MPQ2451 is available in a cost-effective SOT23-6L, TSOT23-6L and QFN-6L packages.
FEATURES
- Guaranteed Industrial/Automotive Temp. Range Limits
- 130μA Operating Quiescent Current
- Wide 3.3V-to-36V Operating Input Range
- 500mΩ Internal Power MOSFET
- 2MHz Fixed Switching Frequency
- Internally pensated
- Stable with Ceramic Output Capacitors
- Internal Soft-Start
- Precision Current Limit Without Current
Sensing Resistor
- >90% Efficiency
- Output Adjustable from 0.8V to 0.9- VIN, Fixed 5V & 3.3V Output
- 6-Lead SOT23, TSOT23 and QFN Packages
- Available in AEC-Q100 Grade 1
APPLICATIONS
- High-Voltage Power Conversion
- Automotive Systems
- Industrial Power Systems
- Distributed Power Systems
- Battery-Powered Systems
All MPS parts are lead-free, halogen free, and adhere to the Ro HS 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
C3 33p F
1 BST
6 SW
VIN 5
C4 100n F
L1
D1 VIN
C1
3 FB
EN...
