MP2359 Просмотр технического описания (PDF) - Monolithic Power Systems
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MP2359 Datasheet PDF : 9 Pages
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TM
MP2359 – 1.2A, 24V, 1.4MHz STEP-DOWN CONVERTER IN A TSOT23-6
PACKAGE REFERENCE
TOP VIEW
BST 1
6 SW
GND 2
5 IN
FB 3
4 EN
Part Number* Package
Temperature
MP2359DJ
MP2359DT
TSOT23-6
SOT23-6
–40°C to +85°C
–40°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP2359DJ–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP2359DJ–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN....................................... 26V
VSW....................................... –0.3V to VIN + 0.3V
VBS ....................................................... VSW + 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)
Supply Voltage VIN........................... 4.5V to 24V
Output Voltage VOUT ...................... 0.81V to 15V
Ambient Temperature ................–40°C to +85°C
Thermal Resistance (3) θJA θJC
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
recommended operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameters
Symbol Condition
Feedback Voltage
Feedback Current
Switch-On Resistance (4)
Switch Leakage
Current Limit (4)
VFB
IFB
RDS(ON)
4.5V ≤ VIN ≤ 24V
VFB = 0.8V
VEN = 0V, VSW = 0V
Oscillator Frequency
Fold-back Frequency
Maximum Duty Cycle
Minimum On-Time (4)
Under Voltage Lockout Threshold Rising
fSW VFB = 0.6V
VFB = 0V
VFB = 0.6V
tON
Under Voltage Lockout Threshold Hysteresis
EN Input Low Voltage
EN Input High Voltage
EN Input Current
Supply Current (Shutdown)
Supply Current (Quiescent)
Thermal Shutdown (4)
VEN = 2V
VEN = 0V
IS
VEN = 0V
IQ
VEN = 2V, VFB = 1V
Note:
4) Guaranteed by design.
Min
0.790
1.2
2.5
1.2
Typ
0.810
0.1
0.35
1.8
1.4
460
87
100
2.8
150
2.1
0.1
0.1
0.8
150
Max
0.830
10
1.7
3.1
0.4
Units
V
µA
Ω
µA
A
MHz
KHz
%
ns
V
mV
V
V
µA
1.0 µA
1.0 mA
°C
MP2359 Rev. 1.1
www.MonolithicPower.com
2
6/23/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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