el7564 Intersil Corporation, el7564 Datasheet - Page 9

• Manufacturer Part Number: el7564
• Description: Monolithic 4 Amp Dc/dc Step-down Regulator
• Manufacturer: Intersil Corporation

Typical Performance Curves
Block Diagram
FIGURE 21. PACKAGE POWER DISSIPATION vs AMBIENT
STN
STP
EN
3.5
2.5
1.5
0.5
3
2
1
0
0
22:
0.22µF
2.2nF
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD. HTSSOP EXPOSED
DIEPAD SOLDERED TO PCB PER JESD51-5
3.333W
TEMPERATURE
25
AMBIENT TEMPERATURE (°C)
V
V
DD
TJ
50
CONTROLLER
SGND
POWER
TRACKING
SUPPLY
9
TEMPERATURE
75
JUNCTION
85
FB
100
(Continued)
125
PWM
CONTROLLER
REFERENCE
V
REF
VOLTAGE
CURRENT
150
SENSE
V
+
-
REF
0.1µF
EL7564
OSCILLATOR
DRIVERS
C
OSC
POWER
POWER
FIGURE 22. PACKAGE POWER DISSIPATION vs AMBIENT
FET
FET
390pF
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1
0
0
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
909mW
TEMPERATURE
V
V
V
PGND
PG
DRV
HI
IN
25
AMBIENT TEMPERATURE (°C)
0.22µF
4.7µH
50
75
330µF
D
85
1
100
2370:
1k:
125
100pF
150
May 9, 2005
FN7297.3
V
OUT