EL7531IY Intersil, EL7531IY Datasheet - Page 4
![IC REG 1A STEP DOWN MONO 10-MSOP](/photos/6/58/65824/20-10-msop_sml.jpg)
EL7531IY
Manufacturer Part Number
EL7531IY
Description
IC REG 1A STEP DOWN MONO 10-MSOP
Manufacturer
Intersil
Type
Step-Down (Buck)r
Datasheet
1.EL7531IYZ.pdf
(11 pages)
Specifications of EL7531IY
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
Contains lead / RoHS non-compliant
Power - Output
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EL7531IYZ
Manufacturer:
Intersil
Quantity:
650
Part Number:
EL7531IYZ
Manufacturer:
INTERSIL
Quantity:
20 000
Part Number:
EL7531IYZ-T
Manufacturer:
INTERSIL
Quantity:
20 000
Company:
Part Number:
EL7531IYZ-T13
Manufacturer:
INTERSIL
Quantity:
937
Part Number:
EL7531IYZ-T13
Manufacturer:
INTERSIL
Quantity:
20 000
Company:
Part Number:
EL7531IYZ-T13(BHAAA)(BP)
Manufacturer:
COSMO
Quantity:
295
Company:
Part Number:
EL7531IYZ-T7
Manufacturer:
Intersil
Quantity:
1 250
Performance Curves and Waveforms
All waveforms are taken at V
noted.
FIGURE 5. F
100
FIGURE 1. EFFICIENCY vs I
FIGURE 3. EFFICIENCY vs I
100
95
90
85
80
75
70
65
60
55
50
45
40
1.44
1.42
1.38
1.36
1.34
1.32
95
90
85
80
75
70
65
60
55
50
45
40
0.001
1.4
0.001
-50
V
V
V
O
O
V
O
V
= 1.8V
S
= 2.5V
IN
= 2.5V
O
vs JUNCTION TEMPERATURE (PWM MODE)
= 5V I
= 3.3V
V
0
O
V
O
0.010
0.010
O
= 1A
V
= 0.8V
V
= 1.2V
IN
IN
O
= 3.3V I
= 3.3V, V
V
= 1.0V
V
O
V
O
T
I
4
O
V
= 1.2V
O
A
= 0.8V
I
O
V
O
= 1.5V
(°C)
(A)
50
O
= 1.5V
O
(A)
O
O
= 1.8V
= 0A
O
(PFM/PWM MODE)
(PFM/PWM MODE)
V
0.100
0.100
= 1.8V, I
IN
V
= 3.3V I
V
IN
IN
= 5V I
100
= 5V
V
V
O
IN
O
O
= 1A with component values shown on page 1 at room ambient temperature, unless otherwise
= 3.3V
O
= 1.0V
= 1A
= 0A
1.000
1.000
150
EL7531
100
90
80
70
60
50
40
30
20
10
100
FIGURE 6. LOAD REGULATIONS (PWM MODE)
0.001
0
-0.1%
-0.2%
-0.3%
-0.4%
-0.5%
90
80
70
60
50
40
30
20
10
0.1%
0.0%
FIGURE 2. EFFICIENCY vs I
0
0.001
FIGURE 4. EFFICIENCY vs I
V
0
O
= 1.0V
V
V
O
V
V
V
O
O
O
O
= 1.2V
V
V
= 2.5V
= 1.5V
= 1.5V
O
= 1.8V
V
O
0.2
O
= 1.8V
0.010
= 2.5V
0.010
= 3.3V
0.4
I
V
V
O
O
I
IN
O
I
(A)
O
= 0.8V
(A)
= 5V
(A)
V
O
O
O
0.100
0.100
0.6
V
= 0.8V
(PWM MODE)
(PWM MODE)
V
O
V
O
IN
= 1.0V
= 1.2V
V
= 3.3V
IN
V
IN
= 3.3V
0.8
= 5V
July 13, 2006
1.000
1.000
FN7428.9
1