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MP2363 – 3A, 27V, 365KHz STEP-DOWN CONVERTER
MP2363 Rev. 1.0
6/15/2006
www.MonolithicPower.com
2
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
PACKAGE REFERENCE
BS
IN
SW
GND
SS
EN
COMP
FB
1
2
3
4
8
7
6
5
TOP VIEW
EXPOSED PAD
ON BACKSIDE
CONNECT TO PIN 4
Part Number*
MP2363DN
Package
SOIC8N
Temperature
–40
°
C to +85
°
C
*
For Tape & Reel, add suffix –Z (eg. MP2363DN–Z)
For RoHS Compliant Packaging, add suffix –LF (eg.
MP2363DN–LF–Z)
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage V
IN
.......................–0.3V to +28V
Switch Voltage V
SW
................. –1V to V
IN
+ 0.3V
Boost Voltage V
BS
..........V
SW
– 0.3V to V
SW
+ 6V
All Other Pins.................................–0.3V to +6V
Junction Temperature...............................150
°
C
Lead Temperature....................................260
°
C
Storage Temperature .............–65
°
C to +150
°
C
Recommended Operating Conditions
(2)
Input Voltage V
IN
............................4.75V to 27V
Ambient Operating Temp ..........–40
°
C to +85
°
C
Thermal Resistance
(3)
SOIC8N ..................................50...... 10...
°
C/W
θ
JA
θ
JC
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.
ELECTRICAL CHARACTERISTICS
V
IN
= 12V, T
A
= +25
°
C, unless otherwise noted.
Parameters
Shutdown Supply Current
Supply Current
Feedback Voltage
Error Amplifier Voltage Gain
(4)
Error Amplifier Transconductance
High-Side Switch On-Resistance
(4)
Low-Side Switch On-Resistance
High-Side Switch Leakage Current
Short Circuit Current Limit
Current Sense to COMP Transconductance
Oscillation Frequency
Short Circuit Oscillation Frequency
Maximum Duty Cycle
Minimum On Time
(4)
EN Threshold Voltage
Enable Pull Up Current
Under Voltage Lockout Threshold
Under Voltage Lockout Threshold Hysteresis
Thermal Shutdown
(4)
Symbol Condition
V
EN
=
0V
V
EN
= 3V, V
FB
= 1.4V
V
FB
4.75V
≤
V
IN
≤
27V
A
VEA
G
EA
I
COMP
=
±
10μA
R
DS(ON)1
R
DS(ON)2
V
EN
= 0V, V
SW
= 0V
G
CS
f
S
V
FB
= 0V
D
MAX
V
FB
= 0.8V
T
ON
V
EN
= 0V
V
IN
Rising
Min
0.90
500
4.5
315
20
0.9
0.9
2.37
Typ
20
1.0
0.92
400
800
100
6
0.1
5.7
7.0
365
35
88
120
1.2
1.4
2.54
210
160
Max Units
30
1.2
0.94
1120
10
415
50
1.5
2.2
2.71
μ
A
mA
V
V/V
μ
A/V
m
μ
A
A
A/V
KHz
KHz
%
ns
V
μ
A
V
mV
°
C
Note:
4) Guaranteed by design.
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