 English |
|
|
|
|
|
|
|
| EV0033 Datasheet, PDF (1/5 Pages) Monolithic Power Systems – 1.2A, 6V, 800KHz Synchronous Rectified Step-Down Converter | |||
| |||
|
The Future of Analog IC Technology
EV0033 (MP1567)
1.2A, 6V, 800KHz Synchronous Rectified
Step-Down Converter
EVALUATION BOARD
GENERAL DESCRIPTION
The MP1567 is a 1.2A, 800KHz DC to DC
converter designed for low voltage applications
requiring high efficiency. Capable of providing
output voltages as low as 0.9V from a 3.3V
supply voltage, the MP1567 eliminates the
need for a 5V rail, providing over 90% efficiency
via synchronous rectification and eliminating
heat issues in confined spaces. Soft-start
operation protects internal circuitry from hard
turn on issues. Switching at 800KHz reduces
the size of external components and thereby
reduces board space.
The MP1567 includes cycle-by-cycle current
limiting and under voltage lockout. Internal
power switches combined with the tiny 10-pin
MSOP or QFN packages provide a solution
requiring a minimum of space.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
Output Voltage
Output Current
Symbol
VIN
VOUT
IOUT
Value
2.6 to 6
1.8
1.2
Units
V
V
A
FEATURES
⢠1.2A Output Current
⢠Synchronous Rectified
⢠Internal 180m⦠and 220m⦠Power Switches
⢠VIN Range of 2.6V to 6V
⢠Over 90% Efficiency
⢠Zero Current Shutdown Mode
⢠Under Voltage Lockout Protection
⢠Soft-Start Operation
⢠Thermal Shutdown
⢠Internal Current Limit (Source & Sink)
⢠Tiny 10-Pin MSOP Package
APPLICATIONS
⢠SOHO Routers, PCMCIA Cards, Mini PCI
⢠Handheld Computers, PDAs
⢠Cell Phones
⢠Digital Video Cameras
⢠Small LCD Displays
âMPSâ and âThe Future of Analog IC Technologyâ are Registered Trademarks
of Monolithic Power Systems, Inc.
EV0033 EVALUATION BOARD
Dimensions (2.5âX x 2.0âY x 0.4âZ)
Board Number
MPS IC Number
EV0033
MP1567DK
Efficiency vs
Load Current
100
90 VIN=3.3V
80
70
60
VIN=4V
50
40
VIN=5V
30
20
10
VOUT=1.8V
0
10
100
1000
LOAD CURRENT (mA)
MP1567_EC01
EV0033 Rev. 1.4
www.MonolithicPower.com
1
4/22/2005
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese