MPQ8632 HIGH EFFICIENCY 18V SYNCHRONOUS STEP-DOWN CONVERTER FAMILY FOR 4A TO 20A
ELECTRICAL CHARACTERISTICS
V
IN
= 12V, T
J
= -40C to +125C, unless otherwise noted.
Parameters
Supply Current
Supply Current (Shutdown)
Supply Current (Quiescent)
MOSFET
MPQ8632GLE-4,6,8,
T
J
=25C
MPQ8632GLE-10,12,
MPQ8632HGLE-10,
T
J
=25C
MPQ8632GVE-15,20,
T
J
=25C
MPQ8632GLE-4, T
J
=25C
MPQ8632GLE-6, T
J
=25C
MPQ8632GLE-8, T
J
=25C
Low-side Switch On Resistance
LS
RDS-ON
MPQ8632GLE-10,
MPQ8632HGLE-10,
T
J
=25C
MPQ8632GLE-12, T
J
=25C
MPQ8632GVE-15, T
J
=25C
MPQ8632GVE-20, T
J
=25C
Switch Leakage
Current Limit
High-side Peak Current Limit
I
LIMIT_PEAK
MPQ8632GLE-10
MPQ8632GLE-4
MPQ8632GLE-6
MPQ8632GLE-8
Low-side Valley Current Limit
(6)
Symbol
Condition
Min
Typ
Max
Units
μA
μA
I
IN
I
IN
V
EN
=
0V
V
EN
=
2V, V
FB
= 1V
700
0
860
1
1000
28
19.6
9.9
16.4
15.8
15.3
5.7
5.2
3
2.4
0
10
mΩ
mΩ
mΩ
High-side Switch On Resistance
HS
RDS-ON
mΩ
SW
LKG
V
EN
= 0V, V
SW
= 0V or 12V
13
4
6.5
8
9.5
10
12
15
20
-6.6
-4
μA
17.3
5
7.5
10
11
13
15
20
25
-5.6
-2.5
21.6
6
8.5
12
12.5
16
18
25
30
-4.6
A
MPQ8632GLE-10
I
LIMIT_VALLEY
MPQ8632HGLE-10
MPQ8632GLE-12
MPQ8632GVE-15
MPQ8632GVE-20
A
Low-side Negative Current
(6)
Limit
MPQ8632GVE-15
I
LIMIT_NEGATIVE
All other parts
A
-1
MPQ8632 Rev.1.24
www.MonolithicPower.com
8/28/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
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7
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