EL7564C
Monolithic 4 Amp DC:DC Step-down Regulator
Closed Loop AC Electrical Characteristics
VS = VIN = 5V, TA = TJ = 25°C, COSC = 1.2nF, unless otherwise specified.
Parameter Description
FOSC Oscillator Initial Accuracy
tSYNC
MSS
tBRM
tLEB
Conditions
Min
Typ
117
25
Max
Unit
kHz
ns
105
130
Minimum Oscillator Sync Width
Soft Start Slope
0.5
15
V/ms
ns
FET Break Before Make Delay
High Side FET Minimum On Time
Maximum Duty Cycle
150
95
ns
DMAX
%
Typical Application Diagrams (Continued)
C5
0.1µF
1
2
3
4
5
6
7
8
9
VREF
SGND
COSC
VDD
EN 28
C4
FB 27
PG 26
390pF
R4
C3
22W
VDRV 25
VHI 24
LX 23
0.22µF
C6
D1
VTJ
0.22µF
V
3.3V,
4A
OUT
C2
PGND
PGND
PGND
PGND
L1
2.2nF
4.7µH
LX 22
V
5V
C7
R2
C10
IN
330µF
2.37kW
2.2nF
LX 21
LX 20
330µF
R1
1kW
10 VIN
11 VIN
12 NC
LX 19
LX 18
NC 17
13 STP
14 STN
PGND 16
PGND 15
EL7564CRE
(28-Pin HTSSOP)
For the package information, please refer to the Elantec website at http://www.elantec.com/pages/package_outline.html
3
ELANTEC [ ELANTEC SEMICONDUCTOR ]
