isl8009a Intersil Corporation, isl8009a Datasheet - Page 2

• Manufacturer Part Number: isl8009a
• Description: 1.5a Low Quiescent Current 1.6mhz High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
Supply Voltage (V
EN, RSI, SKIP, VFB, POR . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
LX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to 6.5V
VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0A to 1.5A
Ambient Temperature Range . . . . . . . . . . . . . . . . . . .-40°C to +85° C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
Electrical Specifications
INPUT SUPPLY
VIN Undervoltage Lockout Threshold
Quiescent Supply Current
Shutdown Supply Current
OUTPUT REGULATION
VFB Regulation Voltage
VFB Bias Current
Output Voltage Accuracy
Line Regulation
COMPENSATION
Error Amplifier Trans-Conductance
LX
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
P-Channel MOSFET Peak Current Limit
LX Maximum Duty Cycle
PWM Switching Frequency
LX Minimum On-Time
Soft-Start-Up Time
1. T
2. For T
3. Limits established by characterization and are not production tested.
Tech Brief TB379.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
PARAMETER
IN
) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
2
Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions and the
typical specifications are measured at the following conditions: T
V
page 8.
IN
(Reference to GND)
= 5V, L = 2.2µH, C
SYMBOL
V
V
I
UVLO
I
I
VFB
I
VIN
VFB
SD
PK
f
S
1
= C
Rising
Falling
SKIP = V
SKIP = V
switches switching, design info only
SKIP = GND, no load at the output
V
VFB = 0.75V
V
(Note 3)
V
Adjustable version, design info only
V
V
V
V
I
SKIP = low (forced PWM mode)
O
IN
IN
IN
IN
IN
IN
IN
= 1.5A
2
= 5.5V, EN = low
= V
= V
= 5.5V, I
= 2.7V, I
= 5.5V, I
= 2.7V, I
= 20µF, I
ISL8009A
O
O
IN
IN
+ 0.5V to 5.5V, I
+ 0.5V to 5.5V (minimal 2.7V)
, no load at the output
, no load at the output and no
TEST CONDITIONS
O
O
O
O
OUT
= 200mA
= 200mA
= 200mA
= 200mA
= 0A to 1.5A, unless otherwise noted. See “Typical Applications” on
Thermal Information
Thermal Resistance (Typical, Notes 1, 2) T
Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +12 5°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +15 0°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
8 Ld 2x3 DFN Package . . . . . . . . . .
O
= 0A to 1A
A
= +25°C, EN = VIN, RSI = SKIP = 0V,
0.784
1.35
MIN
2.2
1.8
90
-3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP
0.12
0.16
0.11
0.15
2.5
2.4
3.7
0.1
0.8
0.1
0.2
2.1
1.6
1.1
17
15
20
70
-
-
JA
(°C /W)
65
0.816
MAX
0.22
0.27
0.22
0.27
1.75
100
2.7
2.6
30
6
2
3
-
-
-
-
-
-
-
February 13, 2008
T
JC
UNITS
µA/V
FN6656.0
MHz
(° C/W)
%/V
mA
ms
6
µA
µA
µA
µA
ns
%

V
V
V
:
:
:
:
A