EL7554IREZ Intersil, EL7554IREZ Datasheet - Page 7

• Manufacturer Part Number: EL7554IREZ
• Description: IC REG 4A DC-DC STEP DN 28HTSSOP
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of EL7554IREZ

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 6 V
• Current - Output: 4A
• Frequency - Switching: 370kHz
• Voltage - Input: 3 ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Primary Input Voltage: 3.3V
• No. Of Outputs: 1
• Output Voltage: 6V
• Output Current: 4A
• No. Of Pins: 28
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 3 - 168 Hours
• Current Rating: 4A
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Typical Performance Curves
V
IN
FIGURE 9. HTSSOP THERMAL RESISTANCE vs PCB AREA
= V
D
610
605
600
595
590
585
= 3.3V, V
50
45
40
35
30
25
0
1
(NO AIR FLOW)
0.5
O
2
= 1.8V, I
FIGURE 7. F
1
3
V
IN
=3.3V
V
28 Ld HTSSOP THERMAL PAD
SOLDERED TO 2-LAYER PCB
WITH 0.039" THICKNESS AND
1 OZ. COPPER ON BOTH SIDES
CONDITION:
O
PCB AREA (in
IN
1.5
4
= 4A, L = 2.2µH, C
=5V
FIGURE 11. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE
7
I
O
2
5
S
(A)
vs I
2.5
O
6
2
)
(Continued)
7
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
3
IN
0
0
= 2x10µF, C
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
3.5
8
25
9
4
AMBIENT TEMPERATURE (°C)
OUT
EL7554
50
= 47µF, C
75
85
OSC
FIGURE 10. PACKAGE POWER DISSIPATION vs AMBIENT
100
= 220pF, T
-0.2
-0.4
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.8
0.6
0.4
0.2
0.0
125
0
0
0
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
TEMPERATURE
FIGURE 8. LOAD REGULATIONS
A
150
= +25°C unless otherwise noted.
25
AMBIENT TEMPERATURE (°C)
1
50
I
O
75
2
(A)
85
100
3
125
November 5, 2007
FN7360.5
150
4