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MP2104 Datasheet, PDF (1/10 Pages) Monolithic Power Systems – 1.7MHz, 600mA Synchronous Step-Down Converter | |||
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TM
The Future of Analog IC Technology TM
MP2104
1.7MHz, 600mA Synchronous
Step-Down Converter
DESCRIPTION
The MP2104 is a 1.7MHz constant frequency,
current mode, PWM step-down converter. The
device integrates a main switch and a
synchronous rectifier for high efficiency without an
external Schottky diode. It is ideal for powering
portable equipment that runs from a single cell
Lithium-Ion (Li+) battery. The MP2104 can supply
600mA of load current from a 2.5V to 6V input
voltage. The output voltage for the MP2104DJ
can be regulated as low as 0.6V, while the output
voltages of the MP2104DJ-1.5 and
MP2104DJ-1.8 are fixed at 1.5V and 1.8V,
respectively. The MP2104 can also run at 100%
duty cycle for low dropout applications.
The MP2104 is available in a low profile (1mm)
5-pin, TSOT package.
ORDERING INFORMATION
Part Number
Output Voltage
MP2104DJ-1.5
MP2104DJ-1.8
MP2104DJ
VOUT = 1.5V
VOUT = 1.8V
VOUT = 0.6V to 6V
EVALUATION BOARD REFERENCE
Board Number
EV2104DJ-00A
Dimensions
2.0âX x 2.0âY x 0.5âZ
FEATURES
⢠High Efficiency: Up to 95%
⢠1.7MHz Constant Switching Frequency
⢠600mA Available Load Current
⢠2.5V to 6V Input Voltage Range
⢠Output Voltage as Low as 0.6V
⢠100% Duty Cycle in Dropout
⢠Current Mode Control
⢠Short Circuit Protection
⢠Thermal Fault Protection
⢠<0.1µA Shutdown Current
⢠1.5V and 1.8V Fixed Output Versions
⢠Space Saving 5-Pin TSOT23 Package
APPLICATIONS
⢠Cellular and Smart Phones
⢠Microprocessors and DSP Core Supplies
⢠PDAs
⢠MP3 Players
⢠Digital Still and Video Cameras
⢠Portable Instruments
âMPSâ and âThe Future of Analog IC Technologyâ are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
INPUT
2.5V - 6V
OFF ON
4
IN
SW 3
MP2104DJ-1.8
1 EN
5
OUT
GND
2
OUTPUT
1.8V
600mA
MP2104_TAC_S01
Efficiency vs
Load Current
100
90 VIN = 3.3V
80
70
VIN = 4.2V
60
50
40
30
20
10
0
10
100
1000
LOAD CURRENT (mA)
MP2104-EC01
MP2104 Rev. 1.3
www.MonolithicPower.com
1
10/4/2005
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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