ISL6442IA Intersil, ISL6442IA Datasheet - Page 6

• Manufacturer Part Number: ISL6442IA
• Description: IC PWM BUCK VM 24QSOP
• Manufacturer: Intersil

Specifications of ISL6442IA

• Pwm Type: Voltage Mode
• Number Of Outputs: 3
• Frequency - Max: 2.85MHz
• Duty Cycle: 100%
• Voltage - Supply: 4.5 V ~ 24 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-QSOP
• Frequency-max: 2.85MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Electrical Specifications
NOTES:
Typical Performance Curves
Power-Good Lower Threshold
PGOOD Delay
PGOOD Leakage Current
PGOOD Voltage Low
THERMAL
Shutdown Temperature
Shutdown Hysteresis
3. Limits established by characterization and are not production tested.
4. Design guideline only; not production tested.
FIGURE 3. REFERENCE VOLTAGE VARIATION OVER
0.65
0.64
0.63
0.62
0.61
0.60
0.59
0.58
0.57
0.56
0.55
-40
PARAMETER
TEMPERATURE
-20
0
TEMPERATURE (°C)
6
Operating Conditions Unless Otherwise Noted: VIN = 12V, or V
values are at +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested. (Continued)
20
PG_low
t
I
V
PGOOD
PGOOD
SYMBOL
PG_low
3
40
LDO enabled, PGOOD for LDO;
Ch1 and Ch2 disabled; (Note 3)
(Note 3); F
V
I
(Note 4)
(Note 4)
PGOOD
PULLUP
60
= -4mA
= 5.5V
SW
TEST CONDITIONS
80
= 1.4MHz
ISL6442
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
FIGURE 4. FREQUENCY vs RT RESISTOR
5
CC
MIN
10
= 5V ±10%, T
15
TYP
370
150
75
20
RT (kΩ)
20
A
= -40°C to +85°C. Typical
25
MAX
0.5
5
30
October 31, 2008
35
UNITS
ms
µA
°C
°C
FN9204.2
%
V
40