MVPG30x/MVPG31
Datasheet
2.4
Switching Step-down Regulator
Table 6: Switching Step-down Regulator
NOTE: The following applies unless otherwise noted: SV = PV = 5.0V, V
= V
= SGND = PGND, R
= 11 kΩ,
IN
IN
PSET
SHDN
VSET
L = 2.0 µH, C
= 22 µF (Ceramic), T = 25 °C. Bold values indicate -40°C < T < 85°C.
OUT
A
A
Typ
0.8
1.0
1.2
1.5
1.8
2.5
3.0
3.3
-10
-7.5
-5.0
-2.5
2.5
5.0
7.5
10
Symbol
Parameter
Conditions
Min
--
Max
--
Units
Output Voltage
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
= 11K, PWM mode
= 18.7K, PWM mode
= 31.6K, PWM mode
= 53.6K, PWM mode
= 97.6K, PWM mode
= 165K, PWM mode
= 280K, PWM mode
= 475K, PWM mode
= 11K
V
VSET
VSET
VSET
VSET
VSET
VSET
VSET
VSET
PSET
PSET
PSET
PSET
PSET
PSET
PSET
PSET
--
--
--
--
--
--
--
--
--
--
--
--
--
--
Percentage Set
--
--
%
= 18.7K
--
--
= 31.6K
--
--
= 53.6K
--
--
= 97.6K
--
--
= 165K
--
--
= 280K
--
--
= 475K
--
--
V
V
Output Voltage Line
Regulation
SV = PV = 3.0V to 5.0V
--
0.1
--
%
%
LNREG
IN
IN
V
I
= 1.5V
= 500 mA
OUT
LOAD
Output Voltage Load
Regulation
SV = PV = 5.0V
--
0.2
--
LDREG
IN
OUT
IN
= 1.5V
V
I
= 500 mA to 2.0A
LOAD
f
Switching Frequency
PWM mode
--
--
--
--
--
--
1.0
150
120
90
--
--
--
--
--
--
MHz
SW
R
R
= of
SV = 3.0V, I
= 100 mA
= 100 mA
= 100 mA
= 100 mA
mΩ
PFET
DS(ON)
IN
SW
SW
SW
SW
P-Channel FET
SV = 5.0V, I
IN
R
R
= of
SV = 3.0V, I
mΩ
NFET
DS(ON)
IN
N-Channel FET
SV = 5.0V, I
70
IN
I
Minimum Peak Switch
Current Limit
TBD
A
LIM
Doc. No. MV-S102808-00 Rev. G
Page 20
Copyright © 2008 Marvell
April 14, 2008, 2.00
Document Classification: Proprietary
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
