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MP38115DQ Datasheet(PDF) 2 Page - Monolithic Power Systems

No. de pieza MP38115DQ
Descripción Electrónicos  Ultra Low Voltage, 4A, 5.5V Synchronous Step-Down Switching Regulator
PDF  10 Pages
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Fabricante Electrónico  MPS [Monolithic Power Systems]
Página de inicio  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP38115DQ Datasheet(HTML) 2 Page - Monolithic Power Systems

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MP38115 – 4A, 5.5V SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR
MP38115 Rev. 0.92
www.MonolithicPower.com
2
8/11/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
PACKAGE REFERENCE
TOP VIEW
FB
GND
SW
IN
BS
1
2
3
4
5
EN/SYNC
GND
SW
IN
VCC
10
9
8
7
6
EXPOSED PAD
ON BACKSIDE
Part Number*
Package
MP38115DQ
QFN10
(3mm x 3mm)
Temperature
Top Marking
–40
°C to +85°C
W2YW
* For Tape & Reel, add suffix –Z (e.g. MP38115DQ–Z)
For RoHS Compliant Packaging, add suffix –LF
(e.g. MP38115DQ–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
IN to GND ................................... –0.3V to +6.0V
VCC to GND .............................. –0.3V to + 6.0V
SW to GND.......................... –0.3V to VIN + 0.3V
............................ –2.5V to VIN + 2.5V for < 50ns
FB, EN/SYNC to GND .................. –0.3V to +6.5V
BS to SW .................................... –0.3V to +6.5V
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature ..............–65°C to +150°C
Recommended Operating Conditions
(2)
Supply Volts VIN .............................. 1.1V to 5.5V
Supply Voltage VCC......................... 2.7V to 5.5V
Output Voltage VOUT ................. 0.8V to 0.9 x VIN
Operating Temperature .............–40°C to +85°C
Thermal Resistance
(3)
θJA
θJC
QFN10 (3mm x 3mm)............. 50 ...... 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 JESD51-7, 4-layer PCB..
ELECTRICAL CHARACTERISTICS (4)
VCC = VEN = 3.6V, TA = +25°C, unless otherwise noted.
Parameters
Condition
Min
Typ
Max
Units
Supply Current
VEN = VCC
VFB = 0.85V
750
μA
Shutdown Current
VEN = 0V, VCC = 5.5V
1
μA
VCC Undervoltage Lockout
Threshold
Rising Edge
2.59
2.69
V
VCC Undervoltage Lockout
Hysteresis
210
mV
Regulated FB Voltage
TA = +25°C
0.784
0.800
0.816
V
FB Input Current
VFB = 0.85V
±50
nA
EN High Threshold
–40°C ≤ TA ≤ +85°C
1.6
V
EN Low Threshold
–40°C ≤ TA ≤ +85°C
0.4
V
Internal Soft-Start Time
120
µs
High-Side Switch On-Resistance ISW = 300mA
60
mΩ
Low-Side Switch On-Resistance
ISW = –300mA
60
mΩ
SW Leakage Current
VEN = 0V; VCC = 5.5V, VIN = 5.5V
VSW = 0V or 5.5V
–10
10
μA
BS Under Voltage Lockout
Threshold
1.8
V



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