ISL8023 INTERSIL [Intersil Corporation], ISL8023 Datasheet - Page 5

• Manufacturer Part Number: ISL8023
• Description: 3A/4A Low Quiescent Current High Efficiency Synchronous Buck Regulator
• Manufacturer: INTERSIL [Intersil Corporation]

Absolute Maximum Ratings
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V
EN, FS, PG, SYNC, VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -3V (100ns)/(DC) to 6.5V (DC)
COMP, SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
Recommended Operating Conditions
VIN Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V 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
conditions and the typical specification are measured at the following conditions: T
noted. Typical values are at T
INPUT SUPPLY
V
Quiescent Supply Current
Shut Down Supply Current
OUTPUT REGULATION
Reference Voltage - ISL8023IRZ, ISL8024IRZ
VFB Bias Current - ISL8023IRZ, ISL8024IRZ
Line Regulation
Soft-Start Ramp Time Cycle
Soft-Start Charging Current
OVERCURRENT PROTECTION
Current Limit Blanking Time
Overcurrent and Auto Restart Period
Positive Peak Current Limit
Peak Skip Limit
Zero Cross Threshold
Negative Current Limit
4. θ
5. θ
IN
Brief TB379.
Undervoltage Lockout Threshold
JA
JC
, “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” features. See Tech
PARAMETER
A
= +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C
5
Unless otherwise noted, all parameter limits are established over the recommended operating
(Reference to GND)
SYMBOL
t
I
I
t
V
PLIMIT
NLIMIT
OCOFF
V
I
OCON
I
I
SKIP
UVLO
I
I
VFB
VIN
REF
SD
SS
ISL8023, ISL8024
Rising, no load
Falling, no load
SYNC = GND, no load at the output
SYNC = GND, no load at the output and no
switches switching
SYNC = VIN, F
SYNC = GND, V
VFB = 0.75V
V
SS = SGND
V
4A application
3A application
4A application (test at 3.6V)
3A application (test at 3.6V)
IN
SS
= V
= 0.1V
O
+ 0.5V to 5.5V (minimal 2.7V)
S
TEST CONDITIONS
IN
= 1MHz, no load at the output
Thermal Information
Thermal Resistance
Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
= 5.5V, EN = low
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
16 LD TQFN Package (Notes 4, 5) . . . . .
A
= -40°C to +85°C, V
(Note 6)
0.595
IN
0.65
-200
MIN
-3.0
2.2
1.2
5.2
3.9
0.9
= 3.6V, EN = V
0.600
TYP
-2.4
2.5
2.4
0.1
0.2
1.6
6.5
4.8
1.2
0.9
50
50
17
θ
8
5
1
8
JA
(°C/W)
45
IN
(Note 6)
, unless otherwise
0.605
MAX
1.15
200
-1.8
2.7
2.0
5.9
1.5
7.8
December 22, 2011
60
15
7
θ
JC
(°C/W)
SS cycle
FN7812.0
6.5
pulses
UNITS
Clock
%/V
mA
mA
ms
µA
µA
µA
µA
µA
V
V
V
A
A
A
A
A