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MPQ2143 Datasheet Preview

MPQ2143 Datasheet

Synchronous Step-Down Switcher

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DESCRIPTION
The MPQ2143 is a monolithic, step-down,
switch-mode converter with internal power
MOSFETs. It can achieve up to 3A continuous
output current from a 2.5V–to-5.5V input
voltage with excellent load and line regulation.
The output voltage can be regulated as low as
0.6V.
Constant-on-time control provides fast transient
response and eases loop stabilization. Fault-
condition protections include cycle-by-cycle
current limiting and thermal shutdown.
The MPQ2143 is available in small TSOT23-8
package and requires only a minimal number of
readily-available standard external components.
The MPQ2143 is ideal for a wide range of
applications including high-performance DSPs,
FPGAs, smartphones, portable instruments,
and DVD drivers.
TYPICAL APPLICATION
MPQ2143
3A, 5.5V, 1.2MHz, 40μA IQ, COT
Synchronous Step-Down Switcher
AEC-Q100 Qualified
FEATURES
Guaranteed Industrial/Automotive Temp
Wide 2.5V-to-5.5V Operating Input Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Up to 3A Output Current
Low IQ: 40µA
80mand 40mInternal Power MOSFET
Switches
Default 1.2MHz Switching Frequency
EN and Power-Good for Power Sequencing
Cycle-by-Cycle Over-Current Protection
Auto Discharge at Power Off
Short-Circuit Protect with Hiccup Mode
Stable with Low-ESR Output Ceramic
Capacitors
Available in a TSOT23-8 Package
Available in AEC-Q100 Grade 1
APPLICATIONS
Low Voltage I/O System Power
Handheld/Battery-powered Systems
Wireless/Networking Cards
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive.
For MPS green status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
MPQ2143
MPQ2143 Rev. 1.01
www.MonolithicPower.com
1
6/23/2020
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.




MPS

MPQ2143 Datasheet Preview

MPQ2143 Datasheet

Synchronous Step-Down Switcher

No Preview Available !

MPQ2143 – 3A, 5.5V, 1.2MHz, 40μA IQ, COT SYNCHRONOUS STEP-DOWN SWITCHER
AEC-Q100 QUALIFIED
ORDERING INFORMATION
Part Number
MPQ2143DJ*
MPQ2143DJ-AEC1**
Package
TSOT23-8
TSOT23-8
Top Marking
ACE
ACE
* For Tape & Reel, add suffix –Z (e.g. MPQ2143DJ–Z);
For RoHS compliant packaging, add suffix –LF (e.g. MPQ2143DJ–LF–Z)
PACKAGE REFERENCE
SOT23-8
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN ......................................... 6V
VSW ........................ (-3V for < 5ns) to (VIN+0.3V)
All Other Pins .................................-0.3V to +6 V
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Continuous Power Dissipation (TA = 25°C) (2)
……….….. ............................................... 1.25W
Storage Temperature............... -65°C to +150°C
Recommended Operating Conditions (3)
Supply Voltage VIN .......................... 2.5V to 5.5V
Output Voltage VOUT................. 0.6V to VIN -0.5V
Operating Junction Temp. (TJ). -40°C to +125°C
Thermal Resistance (4) θJA θJC
TSOT23-8 .............................. 100 ..... 55... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MPQ2143 Rev. 1.01
www.MonolithicPower.com
2
6/23/2020
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.


Part Number MPQ2143
Description Synchronous Step-Down Switcher
Maker MPS
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MPQ2143 Datasheet PDF






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