MP2104DJ-1.5-LF-P Datasheet, PDF (1/14 Pages) MPS Industries, Inc. – 1.7MHz, 600mA Synchronous Step-Down Converter

The Future of Analog IC Technology
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 low profile (1mm)
5-pin TSOT and 0.75mm TQFN-6 packages.
ORDERING INFORMATION
Part Number
Output Voltage
MP2104DJ-1.5
MP2104DJ-1.8
MP2104DJ
MP2104DQT
V_OUT = 1.5V
V_OUT = 1.8V
V_OUT = 0.6V to 6V
V_OUT = 0.6V to 6V
EVALUATION BOARD REFERENCE
Board Number
EV2104DJ-00A
Dimensions
2.0”X x 2.0”Y x 0.5”Z
TYPICAL APPLICATION
INPUT
2.5V - 6V
OFF ON
4
IN
SW ³
MP2104DJ-1.8
1 _EN
5
OUT
GND
2
MP2104
1.7MHz, 600mA Synchronous
Step-Down Converter
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 and 6-pin thin
QFN Packages
APPLICATIONS
• Cellular and Smart Phones
• Microprocessors and DSP Core Supplies
• PDAs
• MP3 Players
• Digital Still and Video Cameras
• Portable Instruments
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
OUTPUT
1.8V
600mA
MP2104_TAC_S01
Efficiency vs
Load Current
100
90 ^{VIN = 3.3V}
80
70
V_IN = 4.2V
60
50
40
30
20
10
0
10
100
1000
LOAD CURRENT (mA)
MP2104-EC01
MP2104 Rev. 1.4
www.MonolithicPower.com
1
8/13/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.