EL7531IYZ-T7 Intersil, EL7531IYZ-T7 Datasheet - Page 5

• Manufacturer Part Number: EL7531IYZ-T7
• Description: IC REG 1A STEP-DOWN 10-MSOP
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of EL7531IYZ-T7

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5.5 V
• Current - Output: 1A
• Frequency - Switching: 1.4MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Performance Curves and Waveforms
All waveforms are taken at V
noted.
FIGURE 9. NO LOAD QUIESCENT CURRENT (PFM MODE)
FIGURE 7. PWM MODE LOAD/LINE REGULATIONS vs
-0.1%
-0.2%
-0.3%
-0.4%
-0.5%
-0.6%
-0.7%
0.1%
0.0%
140
130
120
110
100
FIGURE 11. LOAD REGULATION (PWM MODE)
90
80
70
60
50
-0.2
-0.6
0.6
0.2
2.0
-50
1
0
V
0
O
JUNCTION TEMPERATURE
= 1.5V
V
2.5
O
V
V
= 1.2V V
O
200
IN
= 1.8V
= 3.3V I
V
3.0
IN
V
0
IN
= 3.3V I
400
O
= 5V I
IN
3.5
O
= 1.0V
= 3.3V, V
V
= 0A
O
T
O
O
I
V
5
O
J
= 3.3V
V
S
= 1A
= 1A
4.0
600
(°C)
(mA)
50
O
(V)
= 0.8V
O
4.5
= 1.8V, I
800
V
IN
12MHz
5.0
100
= 5V I
O
1.4MHz
1K
5MHz
= 1A with component values shown on page 1 at room ambient temperature, unless otherwise
5.5
O
= 0A
1.2K
6.0
150
(Continued)
EL7531
FIGURE 8. NO LOAD QUIESCENT CURRENT (PWM MODE)
FIGURE 12. LINE REGULATION @ 500mA (PWM MODE)
12
10
8
6
4
2
0
100
FIGURE 10. EFFICIENCY vs I
-0.1
-0.3
-0.5
2.5
0.5
0.3
0.1
80
60
40
20
0
2.5
0
1.4MHz
200
3
3
400
3.5
3.5
V
I
S
O
V
600
IN
(V)
(mA)
4
(V)
4
5MHz
O
800
12MHz
4.5
(PWM MODE)
4.5
5MHz
1.4MHz
1K
12MHz
5
1.2K
July 13, 2006
5
5.5
FN7428.9