ISL9103 Maxim Integrated Products, ISL9103 Datasheet - Page 4

• Manufacturer Part Number: ISL9103
• Description: 500mA 2.4MHz Low IQ High Efficiency Synchronous Buck Converter
• Manufacturer: Maxim Integrated Products

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Electrical Specifications
Typical Operating Performance
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
FIGURE 3. INPUT QUIESCENT CURRENT vs V
FIGURE 1. EFFICIENCY vs LOAD CURRENT (VO = 1.5V)
100
30
25
20
15
10
90
80
70
60
50
40
30
20
10
2.70
0
0
V
IN
PARAMETER
3.25
= 3.8V
0.1
T = +85°C
T = -45°C
3.80
V
IN
0.2
= 2.7V
V
V
IN
4
IN
I
O
4.35
= 4.9V
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)
(V)
(A)
T = +25°C
1
= 10µF, C
0.3
4.90
SYMBOL
2
= 10µF, I
IN
0.4
f
S
5.45
(VO = 2.5V)
ISL9103, ISL9103A
OUT
V
IN
6.00
0.5
= 3.6V
= 0A (see “Typical Applications” on page 8). Parameters with MIN and/or MAX
TEST CONDITIONS
FIGURE 4. OUTPUT VOLTAGE vs LOAD CURRENT
FIGURE 2. EFFICIENCY vs LOAD CURRENT (VO = 2.5V)
1.800
1.795
1.790
1.785
1.780
1.775
100
90
80
70
60
50
40
30
20
10
0
0
0
V
IN
= 3.5V
(ISL9103, VO_NORMINAL = 1.8V)
0.1
100
VIN = 3.6V, RISING
A
V
= +25°C, V
IN
VIN = 3.6V, FALLING
MIN
0.2
= 4.5V
200
1.9
1.4
-
-
-
-
-
-
I
OUT
I
O
(A)
(mA)
IN
TYP
130
1.2
2.4
0.1
0.3
= V
65
30
300
-
-
EN
V
= 3.6V, L = 2.2µH,
IN
MAX
2.75
0.4
= 5.5V
1
0.4
-
-
-
-
-
400
June 26, 2009
UNITS
FN6828.1
MHz
ms
µA
°C
°C
ns
V
V
0.5
500