el7581 Intersil Corporation, el7581 Datasheet - Page 7

• Manufacturer Part Number: el7581
• Description: 3-channel Dc/dc Converter
• Manufacturer: Intersil Corporation

Typical Performance Curves
(20mV/DIV)
50mV/DIV
∆V
(10V/DIV)
BOOST
970
969
968
967
966
965
964
963
962
V
LX
3
R
I
O
V
OSC
IN
= 18mA, V
= 5V, V
= 61.9kΩ
3.5
FIGURE 15. BOOST STAGE
FIGURE 17. V
FIGURE 13. F
BOOST
ON
= 18V, C
4
= 13V, I
V
2µs/DIV
0.5µs/DIV
DDB
7
ON
4.5
ON
S
O
(V)
= 2.2µF
vs V
= 100mA, C
RIPPLE
DDB
5
(Continued)
BOOST
5.5
= 22µF
6
EL7581
50mV/DIV
20mV/DIV
1.265
1.255
1.27
1.26
1.25
-50
I
I
O
O
= 5mA, V
FIGURE 14. V
= 5mA, V
FIGURE 18. V
FIGURE 16. V
ON
OFF
0
= 18V, C
TEMPERATURE (°C)
= -6V, C
REF
10µs/DIV
2µs/DIV
ON
vs TEMPERATURE
OFF
OFF
50
ON
= 2.2µF
= 3.3µF
RIPPLE
RIPPLE
100
150