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MP2560DN-LF-Z

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
MP2560
2.5A, 4MHz, 42V
Step-Down Converter
MP2560 Rev. 1.21 www.MonolithicPower.com 1
2/28/2014 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP2560 is a high frequency step-down
switching regulator with an integrated internal
high-side high voltage power MOSFET. It
provides 2.5A output with current mode control for
fast loop response and easy compensation.
The wide 4.5V to 42V input range accommodates
a variety of step-down applications, including
those in an automotive input environment. A 12µA
shutdown mode quiescent 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 4MHz, the MP2560 is able to
prevent EMI (Electromagnetic Interference) noise
problems, such as those found in AM radio and
ADSL applications.
The MP2560 is available in small 3mm x 3mm
QFN10 and thermally enhanced SOIC8 packages.
FEATURES
120A Quiescent Current
Wide 4.5V to 42V Operating Input Range
220m Internal Power MOSFET
Up to 4MHz Programmable Switching
Frequency
Stable with Ceramic Capacitor
Internal Soft-Start
Internally Set Current Limit without external
Current Sensing Resistor
Up to 93% Efficiency
Output Adjustable from 0.8V to 39V
Available in 3x3 QFN10 and Thermally
Enhanced SOIC8 Packages
APPLICATIONS
High Voltage Power Conversion
Automotive Systems
Industrial Power Systems
Distributed Power Systems
Battery Powered Systems
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
C3
220pF
C4
100nF
D1
V
OUT
3.3V
V
IN
VIN
EN
FREQ
GND
BST
SW
FB
COMP
MP2560
EN
6
10
1,2
5
4
8,9
3
7
0.5 1
1.5
2 2.5
0
LOAD CURRENT (A)
95
90
85
80
75
70
65
60
55
50
EFFICIENCY (%)
Efficiency vs.
Load Current
V
IN
=36V
V
IN
=8V
V
IN
=24V
V
IN
=12V
V
OUT
fs=500kHz
=3.3V
MP2560 – 2.5A, 4MHz, 42V STEP-DOWN CONVERTER
MP2560 Rev. 1.21 www.MonolithicPower.com 2
2/28/2014 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking Temperature
MP2560DQ 3x3 QFN10 S8YW
MP2560DN
SOIC8E
MP2560DN
–40C to +85C
* For Tape & Reel, add suffix –Z (eg. MP2560DQ–Z). For RoHS Compliant Packaging, add suffix –LF (eg.
MP2560DQ–LF–Z)
** For Tape & Reel, add suffix –Z (eg. MP2560DN–Z). For RoHS Compliant Packaging, add suffix –LF (eg.
MP2560DN–LF–Z)
PACKAGE REFERENCE
TOP VIEW
SW
SW
EN
COMP
FB
1
2
3
4
5
BST
VIN
VIN
FREQ
GND
10
9
8
7
6
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
SW
EN
COMP
FB
BST
VIN
FREQ
GND
1
2
3
4
8
7
6
5
TOP VIEW
EXPOSED PAD
CONNECT TO GND
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage (V
IN
).....................–0.3V to +45V
Switch Voltage (V
SW
) ..........................................
............ –0.3V (-7V for < 10ns) to V
IN
+ 0.3V
BST to SW .....................................–0.3V to +6V
All Other Pins.................................–0.3V to +6V
Continuous Power Dissipation… (T
A
= +25°C)
(2)
3x3 QFN10 ................................................ 2.5W
SOIC8 ........................................................ 2.5W
Junction Temperature...............................150C
Lead Temperature ....................................260C
Storage Temperature.............. –65°C to +150C
Recommended Operating Conditions
(3)
Supply Voltage V
IN
...........................4.5V to 42V
Output Voltage V
OUT
.........................0.8V to 39V
Operating Temperature............. –40C to +85C
Thermal Resistance
(4)
θ
JA
θ
JC
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 T
J
(MAX), the junction-to-
ambient thermal resistance
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/
JA
. Exceeding the maximum allowable powe
r
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 board.
MP2560 – 2.5A, 4MHz, 42V STEP-DOWN CONVERTER
MP2560 Rev. 1.21 www.MonolithicPower.com 3
2/28/2014 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
IN
= 12V, V
EN
= 2.5V, V
COMP
= 1.4V, T
A
= +25C, unless otherwise noted.
Parameter Symbol Condition Min Typ Max Units
Feedback Voltage V
FB
4.5V < V
IN
< 42V 0.776 0.8 0.824 V
Upper Switch On Resistance R
DS(ON)
V
BST
– V
SW
= 5V 220 m
Upper Switch Leakage V
EN
= 0V, V
SW
= 0V, V
IN
= 42V 1 A
Current Limit Duty Cycle = 50% 2.9 3.5 A
COMP to Current Sense
Transconductance
G
CS
8 A/V
Error Amp Voltage Gain 200 V/V
Error Amp Transconductance I
COMP
= ±3µA 40 60 80 µA/V
Error Amp Min Source current V
FB
= 0.7V 5 µA
Error Amp Min Sink current V
FB
= 0.9V –5 µA
VIN UVLO Threshold 2.7 3.0 3.3 V
VIN UVLO Hysteresis 0.4 V
Soft-Start Time
10% < V
OUT
< 90% 1.3
(5)
ms
R
FREQ
= 45k 1.6 2 2.4 MHz
Oscillator Frequency
R
FREQ
= 18k 3.2 4 4.8 MHz
Shutdown Supply Current V
EN
= 0V 12 20 µA
Quiescent Supply Current No load, V
FB
= 0.9V 120 145 µA
Thermal Shutdown 150
C
Thermal Shutdown Hysteresis 15
C
Minimum Off Time
(6)
100 ns
Minimum On Time
(6)
100 ns
EN Up Threshold 1.3 1.5 1.7 V
EN Threshold Hysteresis 300 mV
Note:
5) The Soft-Start Time is measured based on V
OUT
from 10% to 90% and multiplied by 1.25 to get 0% to 100% Soft-Start Time.
6) Guaranteed by design.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

MP2560DN-LF-Z

Mfr. #:
Buy MP2560DN-LF-Z
Manufacturer:
Monolithic Power Systems (MPS)
Description:
Switching Voltage Regulators 2.5A, 4MHz, 42V Step-Down Converter
Lifecycle:
New from this manufacturer.
Delivery:
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