EV0020 (MP1591DN)
2A, 32V, 330KHz
Step-Down Converter
EVALUATION BOARD
EV0020 (MP1591DN) Rev. 1.5 www.MonolithicPower.com 1
12/21/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV0020 is the evaluation board for the
MP1591; a high voltage step-down converter
ideal for automotive power adapter battery
chargers. Its wide 6.5V to 32V input voltage
range covers the automotive battery’s
requirements. It achieves 2A continuous output
for quick charge capability.
Current mode operation provides fast transient
response and eases loop stabilization. Fault
protection includes cycle-by-cycle current
limiting and thermal shutdown. In shutdown
mode, the converter draws only 20µA of supply
current.
The MP1591 requires a minimum number of
readily available external components to
complete a 2A step-down DC to DC converter
solution.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
6.5 to 32 V
Output Voltage V
OUT
5 V
Output Current I
OUT
2 A
FEATURES
• Wide 6.5V to 32V Input Operating Range
• 34V Absolute Maximum Input
• 2A Output Current
• Ceramic Input and Output Capacitors
• Up to 95% Efficiency
• 20µA Shutdown Mode
• Fixed 330KHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Output Adjustable From 1.23V to 21V
• Under Voltage Lockout
APPLICATIONS
• Automotive Power Adapters
• PDA and Cellular Phone Battery Chargers
• Distributed Power Systems
• Automotive Aftermarket Electronics
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
EV0020 EVALUATION BOARD
(L x W x H) 2.1” x 1.4” x 0.5” (5.3cm x 3.5cm x 1.1c m)
Board Number MPS IC Number
EV0020 MP1591DN
