ISL6549 INTERSIL [Intersil Corporation], ISL6549 Datasheet - Page 4

• Manufacturer Part Number: ISL6549
• Description: Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller
• Manufacturer: INTERSIL [Intersil Corporation]

Absolute Maximum Ratings
VCC12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +14V
PVCC5, VCC5 . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +7V
VCC5 (if used with external supply). . . . . . . . . . . GND - 0.3V to +6V
BOOT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +27V
PHASE. . . . . . . . . . . . . . . . . . . . . . . . V
V
UGATE. . . . . . . . . . . . . . . . . . . . . . V
LGATE . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to PVCC5 + 0.3V
LDO_DR . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC12 + 0.3V
FB, LDO_FB, COMP, FS_DIS . . . . . . . GND - 0.3V to VCC5 + 0.3V
ESD Classification
Human Body Model (Per JESD22-A114C) . . . . . . . . . . . . . . Class 2
Machine Model (Per EIA/JESD22-A115-A) . . . . . . . . . . . . . .Class B
Charge Device Model (Per JESD22-C101C). . . . . . . . . . . . Class IV
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
Electrical Specifications
VCC SUPPLY CURRENT
Nominal Supply Current VCC12 (disabled)
Nominal Supply Current VCC5 (disabled)
Nominal Supply Current VCC12
(includes PVCC5 current)
Nominal Supply Current VCC5
Maximum PVCC5 Current Available (Note 5)
VCC12 to PVCC5 Current Limit (Note 5)
PVCC5 Voltage
POWER-ON RESET
Rising VCC5 Threshold
Falling VCC5 Threshold
Rising VCC12 Threshold
Falling VCC12 Threshold
OSCILLATOR AND SOFT-START
Switching Frequency
1. θ
2. θ
3. For θ
BOOT
Tech Brief TB379.
JA
JA
- V
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
JC
PHASE
, the “case temp” location is the center of the exposed metal pad on the package underside.
PARAMETER
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7V
4
Recommended Operating Conditions, unless otherwise noted. VCC12 = 12V
Temperature = 0 to +70°C (typical = +25°C) for Commercial; Temperature = -40 to + 85°C (typical = +25°C) for
Industrial. Refer to Block Diagram, Simplified Power System Diagram, and Typical Application Schematic.
PHASE
BOOT
- 0.3V to V
- 7V to V
I
SYMBOL
I
PVCC5CL
V
CC12 dis
I
I
CC5 dis
PVCC5
I
F
PVCC5
I
CC12
CC5
OSC
BOOT
BOOT
+ 0.3V
+ 0.3V
UGATE, LGATE and LDO_DR open;
FS_DIS = GND
UGATE, LGATE and LDO_DR open;
FS_DIS = GND (Note 4)
UGATE, LGATE and LDO_DR open;
F
UGATE, LGATE and LDO_DR open;
F
ISL6549C; No external load
ISL6549I; No external load
VCC12 = 12V
VCC12 = 12V
VCC5 = 5V
VCC5 = 5V
ISL6549C; R
ISL6549I; R
OSC
OSC
ISL6549
= 620kHz
= 620kHz
TEST CONDITIONS
FS_DIS
FS_DIS
Thermal Information
Thermal Resistance
Maximum Junction Temperature (Plastic Package) . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . -65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . +300°C
Recommended Operating Conditions
External Supply Voltage on VCC5 . . . . . . . . . . . . . . . . . . +5.0V ±5%
Supply Voltage on VCC12 . . . . . . . . . . . . . . . . . . . . . . . +12V ±10%
Ambient Temperature Range (C). . . . . . . . . . . . . . . . . . 0°C to 70°C
Ambient Temperature Range (I) . . . . . . . . . . . . . . . . -40°C to +85°
Junction Temperature Range. . . . . . . . . . . . . . . . . . . 0°C to +125°C
SOIC Package (Note 1) . . . . . . . . . . . .
QFN Package (Notes 2, 3). . . . . . . . . .
QSOP Package (Note 1) . . . . . . . . . . .
(SOIC - Lead Tips Only)
= 45.3kΩ
= 45.3kΩ
4.95
4.85
MIN
540
525
3.7
3.3
8.8
7.0
TYP
5.25
5.25
100
150
620
620
4.2
3.8
9.5
7.5
12
θ
2
5
4
JA
110
105
(°C/W)
52
MAX
10.0
September 22, 2006
700
700
7.5
5.8
5.8
4.5
4.1
8.0
18
3
6
θ
JC
N/A
N/A
UNITS
FN9168.2
(°C/W)
14
kHz
kHz
mA
mA
mA
mA
mA
mA
V
V
V
V
V