ISL9104A Intersil Corporation, ISL9104A Datasheet - Page 4

• Manufacturer Part Number: ISL9104A
• Description: 500mA 4.3MHz Low IQ High Efficiency Synchronous Buck Converter
• Manufacturer: Intersil Corporation

Electrical Specifications
Typical Operating Performance
FIGURE 3. INPUT QUIESCENT CURRENT vs V
SW Leakage Current
PWM Switching Frequency
SW Minimum On-Time
Soft-Start-Up Time
EN
Logic Input Low
Logic Input High
Logic Input Leakage Current
Thermal Shutdown
Thermal Shutdown Hysteresis
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FIGURE 1. EFFICIENCY vs LOAD CURRENT (V
100
90
80
70
60
50
40
30
20
10
30
25
20
15
10
0
2.70
0
PARAMETER
3.25
V
0.1
IN
T = +85°C
T = -45°C
= 3.8V
3.80
LOAD CURRENT (A)
INPUT VOLTAGE (V)
V
0.2
IN
= 2.7V
4
4.35
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and
the typical specifications are measured at the following conditions: T
C
limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested. (Continued)
T = +25°C
1
V
IN
= 4.7µF, C
= 4.9V
0.3
4.90
SYMBOL
2
IN
= 4.7µF, I
0.4
f
S
(V
OUT
5.45
OUT
ISL9104, ISL9104A
= 1.5V)
V
= 2.5V)
OUT
IN
0.5
6.00
= 3.6V, T
= 0A (see “Typical Applications” on page 8). Parameters with MIN and/or MAX
TEST CONDITIONS
A
= -20°C to +85°C
FIGURE 2. EFFICIENCY vs LOAD CURRENT (V
FIGURE 4. OUTPUT VOLTAGE vs LOAD CURRENT
1.630
1.625
1.620
1.615
1.610
1.605
1.600
100
90
80
70
60
50
40
30
20
10
0
0
0
V
IN
= 3.5V
(V
IN
LOAD CURRENT RISING
0.1
100
= 3.6V, V
A
V
LOAD CURRENT (A)
= +25°C, V
LOAD CURRENT FALLING
IN
OUT
0.2
MIN
= 4.5V
3.6
1.4
200
-
-
-
-
-
-
I
OUT
= 1.6V)
(mA)
IN
TYP
0.01
130
1.0
4.3
0.1
0.3
= V
65
30
300
-
-
EN
V
= 3.6V, L = 1.0µH,
IN
MAX
4.9
0.4
= 5.5V
0.4
2
1
-
-
-
-
-
400
December 23, 2008
OUT
= 2.5V)
UNITS
FN6829.0
MHz
ms
µA
µA
°C
°C
ns
V
V
0.5
500