Converter. MP4560 Datasheet


MP4560 Datasheet PDF


Part Number

MP4560

Description

Step-Down Converter

Manufacture

MPS

Total Page 19 Pages
Datasheet
Download MP4560 Datasheet



MP4560
The Future of Analog IC Technology
DESCRIPTION
The MP4560 is a high frequency step-down
switching regulator with integrated internal high-
side high voltage power MOSFET. It provides 2A
output with current mode control for fast loop
response and easy compensation.
The wide 3.8V to 55V input range accommodates
a variety of step-down applications, including
those in automotive input environment. A 12µA
shutdown mode supply current allows use in
battery-powered applications.
High power conversion efficiency over a wide
load range is achieved by scaling down the
switching frequency at light load condition to
reduce the switching and gate driving losses.
The frequency foldback helps prevent inductor
current runaway during startup and thermal
shutdown provides reliable, fault tolerant
operation.
By switching at 2MHz, the MP4560 is able to
prevent EMI (Electromagnetic Interference) noise
problems, such as those found in AM radio and
ADSL applications.
The MP4560 is available in small 3mm x 3mm
10-pin QFN and SOIC8 with exposed pad
packages.
TYPICAL APPLICATION
MP4560
2A, 2MHz, 55V
Step-Down Converter
FEATURES
Wide 3.8V to 55V Operating Input Range
250mInternal Power MOSFET
Up to 2MHz Programmable Switching
Frequency
140μA Quiescent Current
Ceramic Capacitor Stable
Internal Soft-Start
Up to 95% Efficiency
Output Adjustable from 0.8V to 52V
Available in 3x3 10-Pin QFN and SOIC8
with Exposed Pad Packages
APPLICATIONS
High Voltage Power Conversion
Automotive Systems
Industrial Power Systems
Distributed Power Systems
Battery Powered Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
Efficiency @VOUT=3.3V
fs=500kHz
100
90 Vin=12V
80
70
60 Vin=55V
50
40
30
20
10
0
0 0.5 1 1.5 2
OUTPUT CURRENT (A)
MP4560 Rev. 1.01
www.MonolithicPower.com
2/27/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
1

MP4560
MP4560 – 2A, 2MHz, 55V STEP-DOWN CONVERTER
ORDERING INFORMATION
Part Number
MP4560DQ*
MP4560DN**
Package
3x3 QFN10
SOIC8E
Top Marking
T8
MP4560DN
* For Tape & Reel, add suffix –Z (e.g. MP4560DQ–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP4560DQ–LF–Z)
** For Tape & Reel, add suffix –Z (e.g. MP4560DN–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP4560DN–LF–Z)
PACKAGE REFERENCE
TOP VIEW
SW
SW
EN
COMP
FB
1
2
3
4
5
EXPOSED PAD
10 BST
9 VIN
8 VIN
7 FREQ
6 GND
TOP VIEW
SW
EN
COMP
FB
1
2
3
4
EXPOSED PAD
8 BST
7 VIN
6 FREQ
5 GND
3x3 QFN10
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage (VIN).....................–0.3V to +60V
Switch Voltage (VSW)............ –0.5V to VIN + 0.5V
BST to SW .....................................–0.3V to +5V
All Other Pins .................................–0.3V to +5V
Continuous Power Dissipation(TA = +25°C) (2)
3x3 QFN10……………………………………2.5W
SOIC8 (Exposed Pad)………………………2.5W
Junction Temperature ...............................150C
Lead Temperature ....................................260C
Storage Temperature.............. –65°C to +150C
Recommended Operating Conditions (3)
Supply Voltage VIN ...........................3.8V to 55V
Output Voltage VOUT.........................0.8V to 52V
Operating Junction Temp. (TJ). -40°C to +125°C
SOIC8E
Thermal Resistance (4) θJA θJC
3x3 QFN10..............................50 ...... 12 ... C/W
SOIC8 (Exposed Pad) ............50 ...... 10 ... C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MP4560 Rev. 1.01
www.MonolithicPower.com
2/27/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
2




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