MP1470B
High Efficiency, 2A, 16V, 500kHz
Synchronous, Step-Down Converter
in a 6-Pin TSOT23
MP1470B Rev. 1.0 www.MonolithicPower.com 1
8/25/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP1470B is a high frequency,
synchronous, rectified, step-down, switch-mode
converter with internal power MOSFETs. It
offers a very compact solution to achieve a 2A
continuous output current over a wide input
supply range with excellent load and line
regulation. The MP1470B has synchronous
mode operation for higher efficiency over the
output current load range.
Current-mode operation provides fast transient
response and eases loop stabilization.
Protection features include over-current
protection and thermal shutdown.
The MP1470B requires a minimal number of
readily available, standard, external
components and is available in a compact 6-pin
TSOT23 package.
FEATURES
• Wide 4.7V to 16V Operating Input Range
• 163mΩ/86mΩ Low-R
DS(ON)
Internal Power
MOSFETs
• Proprietary Switching Loss Reduction
Technique
• High-Efficiency Synchronous Mode
Operation
• Fixed 500kHz Switching Frequency
• Forced PWM
• Internal Soft Start
• Over-Current Protection and Hiccup Mode
• Thermal Shutdown
• Output Adjustable from 0.8V
• Available in a 6-Pin TSOT23 Package
APPLICATIONS
• Game Consoles
• Digital Set-Top Boxes
• Flat-Panel Television and Monitors
• General Purposes
All MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit the MPS website under Quality
A
ssurance. “MPS” and “The Future of Analog IC Technology” are registered
trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN
R2
13k
R1
40.2k
Rt
75k
IN
U1
GND
MP1470B
VOUT
EN
FB
SW
BST
3.3V/2A
EN
GND
OUTPUT CURRENT (A)
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2
V
IN
=4.7V
V
IN
=12V
V
IN
=16V
