mp2359dt MPS, mp2359dt Datasheet - Page 2

• Manufacturer Part Number: mp2359dt
• Description: 1.2a, 24v, 1.4mhz Step-down Converter In A Tsot23-6
• Manufacturer: MPS

PACKAGE REFERENCE
ELECTRICAL CHARACTERISTICS
V
Note:
4) Guaranteed by design.
MP2359 Rev. 1.2
5/26/2008
*
Parameters
Feedback Voltage
Feedback Current
Switch-On Resistance
Switch Leakage
Current Limit
Oscillator Frequency
Fold-back Frequency
Maximum Duty Cycle
Minimum On-Time
Under Voltage Lockout Threshold Rising
Under Voltage Lockout Threshold Hysteresis
EN Input Low Voltage
EN Input High Voltage
EN Input Current
Supply Current (Shutdown)
Supply Current (Quiescent)
Thermal Shutdown
Part Number*
IN
For Tape & Reel, add suffix –Z (eg. MP2359DJ–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP2359DJ–LF–Z)
MP2359DT
MP2359DJ
= 12V, T
GND
A
BST
(4)
FB
= +25°C, unless otherwise noted.
(4)
1
2
3
TSOT23-6
(4)
Package
SOT23-6
TOP VIEW
(4)
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
MP2359 – 1.2A, 24V, 1.4MHz STEP-DOWN CONVERTER IN A TSOT23-6
6
5
4
–40°C to +85°C
–40°C to +85°C
SW
IN
EN
Temperature
© 2008 MPS. All Rights Reserved.
www.MonolithicPower.com
Symbol Condition
R
DS(ON)
V
f
t
I
SW
I
ON
I
FB
FB
S
Q
V
V
4.5V ≤ V
V
V
V
V
V
V
V
FB
EN
FB
FB
FB
EN
EN
EN
EN
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V
V
V
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
Supply Voltage V
Output Voltage V
Ambient Temperature ................–40°C to +85°C
Thermal Resistance
TSOT23-6.............................. 220 .... 110.. °C/W
SOT23-6 ................................ 220 .... 110.. °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device function is not guaranteed outside of the
3) Measured on approximately 1” square of 1 oz copper.
= 0.8V
= 0.6V
= 0V
= 0.6V
= 0V, V
= 2V
= 0V
= 0V
= 2V, V
SW
BS
recommended operating conditions.
............................................................... 27V
....................................................... V
IN
≤ 24V
SW
FB
= 1V
= 0V
OUT
IN
IN
0.790
Min
....................................... 26V
........................... 4.5V to 24V
1.2
2.5
1.2
...................... 0.81V to 15V
(3)
0.810
0.35
Typ
460
100
150
150
0.1
1.8
1.4
2.8
2.1
0.1
0.1
0.8
87
θ
JA
0.830
Max
1.7
3.1
0.4
1.0
1.0
10
θ
JC
SW
Units
MHz
KHz
mV
mA
+ 6V
µA
µA
µA
µA
°C
ns
%
V
Ω
A
V
V
V
(2)
(1)
2