isl97656 Intersil Corporation, isl97656 Datasheet - Page 4

• Manufacturer Part Number: isl97656
• Description: 640khz/1.2mhz Pwm Step-up Regulator
• Manufacturer: Intersil Corporation

Typical Performance Curves
-0.1
0.6
0.5
0.4
0.3
0.2
0.1
0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
95
90
85
80
75
70
65
60
0
2
0
0
FIGURE 1. BOOST EFFICIENCY vs I
FIGURE 3. LOAD REGULATION vs I
V
V
f
f
s
V
f
s
FIGURE 5. LINE REGULATION vs V
O
O
s
V
IN
= 1.25MHz
= 1.25MHz
IN
= 1.25MHz
V
= 9V, I
= 12V, I
= 5V, V
IN
= 5V, V
= 5V, V
200
200
O
O
= 80mA
O
V
3
O
= 80mA
IN
= 12V,
O
= 9V, f
V
= 5V, V
IN
= 12V, f
V
f
V
f
s
V
s
IN
f
O
= 5V, V
s
= 620kHz
O
400
= 620kHz
400
s
= 620kHz
= 12V, I
= 5V, V
I
= 9V, I
OUT
I
= 620 kHz
O
4
OUT
s
V
= 9V, f
IN
= 620 kHz
O
4
(mA)
(mA)
O
(V)
= 12V, f
O
O
= 100mA
= 12V,
= 80mA
600
s
600
V
V
= 1.25MHz
f
f
s
s
IN
IN
= 1.25MHz
= 620kHz
s
= 5V, V
= 5V, V
= 1.25 MHz
5
OUT
OUT
800
800
IN
O
O
= 9V,
= 9V,
1000
1000
6
ISL97656
0.7
0.6
0.5
0.4
0.3
0.2
0.1
92
90
88
86
84
82
80
78
76
74
0
0
0
V
FIGURE 2. BOOST EFFICIENCY vs I
V
IN
FIGURE 4. LOAD REGULATION vs I
IN
FIGURE 6. TRANSIENT RESPONSE
= 3.3V, V
V
f
= 3.3V
s
IN
= 620kHz
= 3.3V, V
100
100
O
= 12V, f
V
O
O
= 12V,
200
200
= 12V
s
V
I
I
= 1.25MHz
OUT
OUT
V
f
f
IN
s
s
V
IN
f
s
= 620kHz
= 600kHz
= 3.3V, V
IN
= 3.3, V
= 1.25MHz
(mA)
(mA)
= 3.3V, V
300
300
V
f
V
f
s
V
s
f
IN
O
O
I
IN
s
O
IN
= 620kHz
= 1.25MHz
= 1.25kHz
= 9V, f
= 12V,
= 3.3V, V
= 50mA to 300mA
O
= 3.3V, V
= 3.3, V
= 12V,
OUT
OUT
400
September 10, 2007
s
400
= 1.25MHz
O
O
O
= 9V,
= 9V,
= 9V,
FN6439.0
500
500