EL7554IREZ Intersil, EL7554IREZ Datasheet - Page 6

• 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
= V
1.266
1.264
1.262
1.258
1.256
1.254
1.252
1.248
1.246
1.26
1.25
D
0.95
0.85
0.75
0.65
3.5
2.5
1.5
= 3.3V, V
0.9
0.8
0.7
0.6
4
3
2
1
-50
1
3
0
FIGURE 5. V
FIGURE 3. V
FIGURE 1. EFFICIENCY (V
O
3.5
= 1.8V, I
V
DD
JUNCTION TEMPERATURE
0
1
V
=3.3V
O
EN_HI
=0.8V
V
4
REF
V
EN_LOW
O
EN_HI
V
V
= 4A, L = 2.2µH, C
DD
O
vs TEMPERATURE
V
=1V
6
& V
=5V
DD
V
I
O
50
4.5
O
2
=3.3V
(A)
(V)
EN_LOW
V
O
=1.2V
IN
5
= 5V)
vs V
100
3
V
V
IN
O
5.5
O
DD
=1.8V
=2.5V
= 2x10µF, C
150
6
4
OUT
EL7554
= 47µF, C
OSC
= 220pF, T
1200
1000
800
600
500
200
100
1.6
1.5
1.4
1.3
1.2
1.1
0.9
95
90
85
80
75
70
65
60
1
0
100
-50
0
FIGURE 2. EFFICIENCY (V
FIGURE 4. V
V
A
DD
200
= +25°C unless otherwise noted.
V
=3.3V
FIGURE 6. F
O
=0.8V
JUNCTION TEMPERATURE
1
0
300
V
TJ
DD
V
V
V
O
vs TEMPERATURE
C
DD
DD
=5V
=1V
OSC
I
=5V
S
O
=3.3V
400
50
2
(A)
vs C
(pF)
V
O
OSC
V
=1.2V
IN
O
500
=2.5V
= 3.3V)
100
3
V
O
600
=1.8V
November 5, 2007
700
150
FN7360.5
4