MP2158A Datasheet: Synchronous Step-down Converter





MP2158A Datasheet PDF Download

Part Number MP2158A
Description Synchronous Step-down Converter
Manufacture MPS
Total Page 14 Pages
PDF Download Download MP2158A Datasheet PDF

Features: The Future of Analog IC Technology MP21 58A 1A, 6V, 1.5MHz, 17μA IQ, COT Synch ronous Step-Down Converter in Ultra-Sma ll 2x1.5mm QFN-8 DESCRIPTION The MP215 8A is a monolithic step-down, switch-mo de converter with built-in internal pow er MOSFETs. It achieves 1A of continuou s output current from a 2.5V to 6V inpu t voltage with excellent load and line regulation. The output voltage can be r egulated as low as 0.6V. The constant-o n-time control scheme provides fast tra nsient response and eases loop stabiliz ation. Fault condition protection inclu des cycle-by-cycle current limiting and thermal shutdown. The MP2158A is avail able in a small QFN-8 (1.5mmx2mm) packa ge and requires only a minimal number o f readily available, standard, external components. The MP2158A is ideal for a wide range of applications, including high-performance DSPs, FPGAs, PDAs, and portable instruments. TYPICAL APPLICA TION VIN 2.5V to 6V C1 10 F EN PG VIN SW OUT MP2158A EN FB PG AGND PGND L1 1H R1 200k R2 200k FEATU.

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The Future of Analog IC Technology
MP2158A
1A, 6V, 1.5MHz, 17μA IQ, COT
Synchronous Step-Down Converter
in Ultra-Small 2x1.5mm QFN-8
DESCRIPTION
The MP2158A is a monolithic step-down,
switch-mode converter with built-in internal
power MOSFETs. It achieves 1A of continuous
output current from a 2.5V to 6V input voltage
with excellent load and line regulation. The
output voltage can be regulated as low as 0.6V.
The constant-on-time control scheme provides
fast transient response and eases loop
stabilization. Fault condition protection includes
cycle-by-cycle current limiting and thermal
shutdown.
The MP2158A is available in a small QFN-8
(1.5mmx2mm) package and requires only a
minimal number of readily available, standard,
external components.
The MP2158A is ideal for a wide range of
applications, including high-performance DSPs,
FPGAs, PDAs, and portable instruments.
TYPICAL APPLICATION
VIN
2.5V to 6V
C1
10 F
EN
PG
VIN SW
OUT
MP2158A
EN FB
PG
AGND PGND
L1
1H
R1
200k
R2
200k
FEATURES
Very Low IQ of 17μA
Default 1.5MHz Switching Frequency
1.5% VFB Accuracy
EN and Power Good for Power Sequencing
Wide 2.5V to 6V Operating Input Range
Output Adjustable from 0.6V
Up to 1A of Output Current
100% Duty Cycle in Dropout
120mand 90mInternal Power MOSFET
Switches
Cycle-by-Cycle Over-Current Protection
Short-Circuit Protection with Hiccup Mode
Stable with Low ESR Output Ceramic
Capacitors
Available in a QFN-8 (1.5mmx2mm)
Package
APPLICATIONS
Wireless/Networking Cards
Portable Instruments
Battery-Powered Devices
Low Voltage I/O System Power
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.
For MPS green status, please visit the MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
VOUT
1.2V/ 1A
C2
10 F
MP2158A Rev. 1.02
www.MonolithicPower.com
6/30/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
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