ISL6529 Datasheet, PDF (5/19 Pages) Intersil Corporation – Dual Regulator.Synchronous Rectified Buck PWM and Linear Power Controller

ISL6529, ISL6529A
Absolute Maximum Ratings
UGATE, LGATE, DRIVE2,. . . . . . . . . . . . . . . GND - 0.3V to 12VCC
5VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +7V
12VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to +14V
FB, FB2, COMP, . . . . . . . . . . . . . . . . . GND - 0.3V to 5VCC + 0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 4kV
Operating Conditions
Supply Voltage on 5VCC . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±10%
Supply Voltage on 12VCC . . . . . . . . . . . . . . . . . . . . . . . +12V ±10%
Supply Voltage to drain of Upper MOSFETs . . . +3.3V to +5V ±10%
Ambient Temperature Range. . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Junction Temperature Range . . . . . . . . . . . . . . . . . . . 0°C to 125°C
Thermal Information
Thermal Resistance
θ_JA (°C/W) θ_JC (°C/W)
SOIC Package (Note 1) . . . . . . . . . . . .
68
NA
QFN Package (Notes 2, 3). . . . . . . . . .
36
5
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(SOIC - Lead Tips Only)
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:
1. θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. θ_JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
3. For θ_JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System
Diagrams, and Typical Application Schematic
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNITS
VCC SUPPLY CURRENT
Nominal Supply Current 12VCC
Nominal Supply Current 5VCC
POWER-ON RESET
I_CC
UGATE, LGATE and DRIVE2 Open
I_CC
UGATE, LGATE and DRIVE2 Open
-
2.7
3.0
mA
-
3.5
4.5
mA
Rising 5VCC Threshold
12VCC = 12V
4.25
4.4
4.5
V
Falling 5VCCThreshold
12VCC = 12V
3.75 3.82
4.0
V
Rising 12VCC Threshold
5VCC = 5V
9.6
10.3 10.8
V
Falling 12VCCThreshold
5VCC = 5V
9.3
9.6
10.2
V
OSCILLATOR AND SOFT-START
Free Running Frequency
Ramp Amplitude
Soft-Start Interval
REFERENCE VOLTAGE
F_OSC
DV_OSC
T_SS
550
600
650 kHz
-
1.5
-
V_P-P
3.1
3.45 3.75 ms
Reference Voltage
System Accuracy
V_REF
ISL6529C
-
0.800
-
V
-2.0
-
+2.0
%
ISL6529AC
-1.0
-
+1.0
%
PWM CONTROLLER ERROR AMPLIFIER
DC Gain
Gain-Bandwidth Product
Slew Rate
FB Input Current
COMP High Output Voltage
COMP Low Output Voltage
COMP High Output, Source Current
GBWP
SR
I_I 
V_OUT High
V_OUT Low
I_OUT High
R_L = 10K, C_L = 10pF
R_L = 10K, C_L = 10pF
R_L = 10K, C_L = 10pF
V_FB = 0.8V
-
80
-
dB
-
15
-
MHz
-
6
-
V/µs
-
20
150
nA
3.0
4.5
-
V
-
0.5
1.0
V
-2.5
-6.8
-
mA
5
FN9070.5
April 12, 2005