MP1400
7V Input, 0.6A Peak, 1.5MHz
Negative DCDC Power Converter
In 8-ball CSP Package
MP1400 Rev.1.1 www.MonolithicPower.com 1
5/27/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP1400 is a monolithic negative DCDC
power converter with built-in internal power
MOSFET. The DC-DC IC has a tiny surface
mount 0.8mm x 1.6mm 8-ball CSP package. It
achieves up to 600mA peak output current from
a 2.7V to 7V input voltage. The output voltage
can be regulated from -0.9V to -6V.
The 1500 kHz switching frequency allows for
smaller external components producing a
compact solution for a wide range of load
currents. The internal compensation and soft
start minimizes the external component count
and limits the inrush current during startup.
Fault condition protection includes cycle-by-
cycle current limiting and thermal shutdown.
FEATURES
Wide 2.7V to 7V Operating Input Range
Output Adjustable from -0.9V to -6V
Up to 600mA Peak Output Current
300mΩ High Side MOSFET On Resistance
Default 1.5MHz Switching Frequency
Ground Reference Enable
Cycle-by-Cycle Over Current Protection
Short Circuit Protect with Hiccup Mode
Output Voltage Discharge
Output Over Voltage Protection
Available in a 0.8mm x 1.6mm 8-ball CSP
Package
APPLICATIONS
General Negative Voltage
HDD
Small OLED Panel
All MPS parts are lead-free, halogen free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Qualit
Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP1400
105K
24.9K
4.7uH
EN
REF
VO UT
10uF
EN
IN SW
GND
FB
VO UT
VIN
GND
D1
16V
MBR230
R3
100K
C1A
R1
R2
22uF
16V
C2A
L1
GND
GND
GND
GND
