EL7564C
EL7564C
Monolithic 4 Amp DC:DC Step-down Regulator
Closed Loop AC Electrical Characteristics
V
S
= V
IN
= 5V, T
A
= T
J
= 25°C, C
OSC
= 1.2nF, unless otherwise specified.
Parameter
F
OSC
t
SYNC
M
SS
t
BRM
t
LEB
D
MAX
Description
Oscillator Initial Accuracy
Minimum Oscillator Sync Width
Soft Start Slope
FET Break Before Make Delay
High Side FET Minimum On Time
Maximum Duty Cycle
Conditions
Min
105
Typ
117
25
0.5
15
150
95
Max
130
Unit
kHz
ns
V/ms
ns
ns
%
Typical Application Diagrams (Continued)
C5
0.1µF
1 VREF
C4
390pF
R4
22Ω
C3
0.22µF
2 SGND
3 COSC
4 VDD
5 VTJ
C2
2.2nF
V
IN
5V
6 PGND
7 PGND
8 PGND
9 PGND
10 VIN
11 VIN
12 NC
13 STP
14 STN
EN 28
FB 27
PG 26
VDRV 25
VHI 24
LX 23
LX 22
LX 21
LX 20
LX 19
LX 18
NC 17
PGND 16
PGND 15
C6
0.22µF
L1
4.7µH
C7
330µF
R2
2.37kΩ
C10
2.2nF
D1
V
OUT
3.3V,
4A
330µF
R1
1kΩ
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 ]
