MVPG30x/MVPG31
1 MHz, 3.0A Peak Current-Limit Step-Down Regulator
with AnyVoltage™ Technology
Datasheet
PRODUCT OVERVIEW
The Marvell® MVPG30x/MVPG31 is an intelligent digital
synchronous step-down (Buck) switching regulator
housed in a 4 mm x 3 mm DFN-12 package. The
MVPG15x has an additional on-chip Low-Drop-Out
(LDO) regulator controller. Internally self-compensated,
the step-down regulator requires no external
compensation and work with low-ESR output capacitors
to simplify the design, minimize the board space, and
reduce the amount of external components. The
switching frequency for the step-down regulator is
1 MHz, allowing the use of low profile surface mount
inductors and low value capacitors. The step-down
regulator includes programmable output voltage to
provide the user the ability to easily set the output
voltage with external resistors, logic control, or serial
data interface. The output voltage range is 0.72V to
3.63V.
Features
Tiny 4 mm x 3 mm DFN-12 package
1 MHz switching frequency
Small and low profile inductors
Stable with ceramic output capacitors
No external compensation required
Minimum amount of external components
Over 95% efficiency
High peak switch current limit: 3.0A
Input voltage range: 3.0V to 5.5V
Serial/Logic programmability
AnyVoltage™ Technology provides 64 output
voltage selections to provide flexibility
Programmable output voltage range: 0.72V to 3.63V
P-Channel LDO regulator controller with
programmable current limit (MVPG30x)
The LDO regulator controller with an external P-Channel
MOSFET forms a low dropout regulator capable of
driving 800 mA output current. The output voltage of the
LDO regulator is fixed.
Lead-free packages
Built-in under voltage lockout
Over voltage protection
The MVPG30x/MVPG31 operate from an input voltage
range of 3.0V to 5.5V, making the device well-suited for
portable applications.
Thermal shutdown protection
Output voltage margining capability
Application
Other key features of the MVPG30x/MVPG31 include an
internal current limit for the step-down regulator, an
Under Voltage Lockout (UVLO), and thermal shutdown.
Portable computing
Point of load power supplies
DSP power supplies
Disk drive power supplies
Figure 1: Typical High Efficiency 5.0V to 0.8V/2.0A Step-Down Regulator with 3.3V LDO Regulator
R1
FDC642 P
VIN
V
OUT1
+3.0V to + 5.5V
C2
10uF/6.3V
47 mohm
U1
3.3V/up to 0.8A
R2
10
C3
10uF/6.3V
7
8
3
1
6
5
PVIN
SVIN
VSET
LDR
LFB
SW
SFB
C1
0.1uF
11
12
10
4
L1
2.0uH
MVPG30B
V
OUT2
PSET
SHDN
SGND
R3
11K
0.8V/2.0A
C4
22uF/6.3V
This is a very high frequency device and proper PCB layout is required. Refer to Section 6, Applications
Information, on page 49 for further information.
Caution
Copyright © 2008 Marvell
April 14, 2008, 2.00
Doc. No. MV-S102808-00 Rev. G
Page 3
Document Classification: Proprietary
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
