isl8014a Intersil Corporation, isl8014a Datasheet - Page 4

• Manufacturer Part Number: isl8014a
• Description: 4a Low Quiescent Current 1mhz High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
VIN, VDD . . . . . . . . . . . . . . -0.3V to 6V (DC) or 7V (20ms)
EN, SYNCH, PG . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
LX . . . -1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms)
VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.8V
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . 2.8V to 5.5V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . 0A to 4A
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
V
Threshold
Quiescent Supply Current
Shut Down Supply Current
OUTPUT REGULATION
Reference Voltage
VFB Bias Current
Line Regulation
Soft-Start Ramp Time Cycle
OVERCURRENT PROTECTION
Current Limit Blanking Time
Overcurrent and Auto Restart
Period
Switch Current Limit
Peak Skip Limit
COMPENSATION
Error Amplifier
Trans-Conductance
Trans-Resistance
4. θ
5. θ
DD
features. See Tech Brief TB379.
JA
JC
Undervoltage Lockout
, “case temperature” location is at the center of the exposed metal pad on the package underside.
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach”
PARAMETER
4
SYMBOL
Unless otherwise noted, all parameter limits are established over the recommended
operating conditions and the typical specification are measured at the following conditions
unless otherwise noted: T
T
-40°C to +85°C.
t
A
V
t
I
OCOFF
I
V
OCON
I
I
LIMIT
UVLO
I
SKIP
= +25°C. Boldface limits apply over the operating temperature range,
VFB
(Reference to GND)
VIN
RT
REF
SD
Rising, no load
Falling, no load
SYNCH = GND, no load at the output
SYNCH = GND, no load at the output
and no switches switching
SYNCH = VDD, F
the output
V
VFB = 0.75V
V
2.8V)
(Note 6)
(Note 6)
IN
IN
= 5.5V, EN = low
= V
O
TEST CONDITIONS
ISL8014A
+ 0.5V to 5.5V (minimal
A
= -40°C to +85°C, V
S
= 1MHz, no load at
Thermal Information
Thermal Resistance (Typical, Notes 4, 5)θ
Junction Temperature Range . . . . . . . . . . -55°C to +125°C
Storage Temperature Range . . . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
16 Ld 4x4 QFN Package . . . . . . .
IN
(Note 7) TYP
= 3.6V, EN = VDD. Typical values are at
0.790
2.15
0.17
MIN
4.9
-
-
-
-
-
-
-
-
-
-
-
-
2.35
0.20
2.6
6.5
0.1
0.8
0.1
0.2
6.0
1.3
35
30
17
20
1
4
(Note 7)
0.810
MAX
0.23
2.8
7.1
45
10
JA
2
-
-
-
-
-
-
-
-
-
39
(°C/W)θ
December 4, 2009
Clock pulses
SS cycle
UNITS
JC
µA/V
%/V
mA
ms
µA
µA
µA
µA
Ω
V
V
V
A
A
FN7525.1
(°C/W)
3