TM
MP1411 – 2A, 18V, 380KHz STEP-DOWN CONVERTER
PACKAGE REFERENCE
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage (V
IN
) .................................... 20V
Switch Node Voltage (V
SW
).......................... 21V
Bootstrap Voltage (V
BS
) ....................... V
SW
+ 6V
Feedback Voltage (V
FB
) ................. –0.3V to +6V
Enable/UVLO Voltage (V
EN
)........... –0.3V to +6V
Comp Voltage (V
COMP
) ................... –0.3V to +6V
SS Voltage (V
SS
)............................ –0.3V to +6V
Junction Temperature.............................+150°C
Lead Temperature ..................................+260°C
Storage Temperature ..............–65°C to +150°C
TOP VIEW
NC
BS
NC
IN
SW
1
2
3
4
5
10
9
8
7
6
SS
EN
COMP
FB
GND
EXPOSED PAD
CONNECT TO PIN 6
Recommended Operating Conditions
MP1411_PD01_MSOP10
(2)
Supply Voltage (V
IN
) ...................... 4.75V to 18V
Operating Temperature.................–40°C to +85°C
Thermal Resistance
Part Number*
MP1411DH
*
Package
MSOP10
Temperature
–40°C to +85°C
(3)
MSOP10 with Exposed Pad ... 55 ...... 12...
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
θ
JA
θ
JC
For Tape & Reel, add suffix –Z (eg. MP1411DH–Z)
For Lead Free, add suffix –LF (eg. MP1411DH–LF–Z)
ELECTRICAL CHARACTERISTICS
V
IN
= 12V, T
A
= +25°C, unless otherwise noted.
Parameter
Feedback Voltage
Upper Switch On Resistance
Lower Switch On Resistance
Upper Switch Leakage
Current Limit
(4)
Current Sense Transconductance
Output Current to Comp Pin Voltage
Error Amplifier Voltage Gain
Error Amplifier Transconductance
Oscillator Frequency
Short Circuit Frequency
Soft-Start Pin Equivalent
Output Resistance
Symbol Condition
V
FB
R
DS(ON)1
R
DS(ON)2
V
EN
= 0V, V
SW
= 0V
2.8
G
CS
A
VEA
G
EA
f
S
V
FB
= 0V
∆I
C
=
±10µA
550
4.75V
≤
V
IN
≤
18V
Min
0.892
Typ
0.920
0.2
10
0
3.4
1.95
400
830
380
240
9
1150
Max
0.948
Units
V
Ω
Ω
µA
A
A/V
V/V
µA/V
KHz
KHz
kΩ
10
MP1411 Rev. 1.3
1/22/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
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2
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