MP2176 Datasheet: Synchronous Step-Down Converter





MP2176 Synchronous Step-Down Converter Datasheet

Part Number MP2176
Description Synchronous Step-Down Converter
Manufacture MPS
Total Page 23 Pages
PDF Download Download MP2176 Datasheet PDF

Features: MP2176 6V, 6A, High-Efficiency, Synchron ous Step-Down Converter DESCRIPTION Th e MP2176 is a monolithic, step-down, sw itchmode converter with internal power MOSFETs that can achieve up to 6A of co ntinuous output current from a 1.5V to 6V input voltage with excellent load an d line regulation. The output voltage c an be regulated as low as 0.61V. Consta nt-on-time (COT) control provides fast transient response and eases loop stabi lization. Fault condition protections i nclude cycle-bycycle current limiting a nd thermal shutdown. The operating freq uency is programmed by an external resi stor and is compensated for variations in VIN. Full protection features, inclu ding over-current protection (OCP), sho rt-circuit protection (SCP), over-volta ge protection (OVP), under-voltage prot ection (UVP), and over-temperature prot ection (OTP), are provided by internal comparators. The MP2176 requires a mini mal number of readily available, standa rd, external components and is available in a QFN-14 (3mmx4mm) .

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MP2176
6V, 6A, High-Efficiency,
Synchronous Step-Down Converter
DESCRIPTION
The MP2176 is a monolithic, step-down, switch-
mode converter with internal power MOSFETs
that can achieve up to 6A of continuous output
current from a 1.5V to 6V input voltage with
excellent load and line regulation. The output
voltage can be regulated as low as 0.61V.
Constant-on-time (COT) control provides fast
transient response and eases loop stabilization.
Fault condition protections include cycle-by-
cycle current limiting and thermal shutdown.
The operating frequency is programmed by an
external resistor and is compensated for
variations in VIN.
Full protection features, including over-current
protection (OCP), short-circuit protection (SCP),
over-voltage protection (OVP), under-voltage
protection (UVP), and over-temperature
protection (OTP), are provided by internal
comparators.
The MP2176 requires a minimal number of
readily available, standard, external
components and is available in a QFN-14
(3mmx4mm) package.
FEATURES
1.5V to 6V Wide Input Range
3V to 6V VCC Operating Supply
6A Output Current
Programmable Switching Frequency from
300kHz to 1MHz
Low RDS(ON) Internal Power MOSFETs
Proprietary Switching Loss Reduction
Technique
1% Reference Voltage Over -20°C to
+85°C Junction Temperature Range
Pre-Bias Start-Up
Minimum On Time (TON_MIN = 60ns)
Minimum Off Time (TOFF_MIN = 100ns)
Non-Latch OCP, Non-Latch OVP, and
Thermal Shutdown
Output Adjustable from 0.61V to 4.5V
Programmable Soft-Start Time
Available in a QFN-14 (3mmx4mm)
Package
APPLICATIONS
Flat-Panel Television and Monitors
Telecom System Base Stations
Distributed Power Systems
Personal Video Recorders
Networking Systems
Servers
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.
TYPICAL APPLICATION
VIN
RFREQ
C1 RBST
C5
VCC
PG
EN
R3
FREQ IN
VCC
BST
SW
PG
EN
MP2176
FB
SS
C6 PGND AGND
C3 L1
R4 C4
VOUT
R1
C2
R2
MP2176 Rev. 1.0
4/17/2018
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
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