ISL6420A Intersil, ISL6420A Datasheet - Page 8

• Manufacturer Part Number: ISL6420A
• Description: Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
• Manufacturer: Intersil

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Electrical Specifications
NOTES:
Typical Performance Curves
Buffered Output Voltage - External Reference
Current Drive Capability
VOLTAGE MARGINING
Voltage Margining Range (Note 7)
CDEL Current for Voltage Margining
Slew Time
ISET1 on FB Pin
ISET2 on FB Pin
THERMAL SHUTDOWN
Shutdown Temperature (Note 7)
Thermal Shutdown Hysteresis (Note 7)
4. The operating supply current and shutdown current specifications for 5V input are the same as VIN supply current specifications, i.e., 5.6V to
5. This is the V
6. When the input voltage is 5.6V to 28V at VIN pin, the VCC5 pin provides a 5V output capable of 50mA (max) total from the internal LDO. When
7. Guaranteed by design. Not production tested.
28V input conditions. These should also be tested with part configured for 5V input configuration, i.e., VIN = VCC5 = PVCC = 5V.
the input voltage is 5V, VCC5 pin will be used as a 5V input, the internal LDO regulator is disabled and the VIN must be connected to the VCC5.
In both cases the PVCC pin should always be connected to VCC5 pin. (Refer to the Pin Descriptions sections for more details.)
0.604
0.602
0.600
0.598
0.596
0.594
-40
FIGURE 1. V
PARAMETER
CC
-15
current consumed when the device is active but not switching. Does not include gate drive current.
REF
TEMPERATURE (°C)
10
vs TEMPERATURE
8
Operating Conditions, Unless Otherwise Noted: VIN = 12V, PV
35
V
SYMBOL
REFOUT
60
V
VMSET2/MODE = High,
C
C
CDEL = 0.1µF, VMSET = 330kΩ
VMSET = 330K,
GPIO1 = L
GPIO2 = H
VMSET = 330K,
GPIO1 = H
GPIO2 = L
REFIN
REFOUT
REFOUT
ISL6420A
85
= 1.25V, I
TEST CONDITIONS
= 2.2µF
= 2.2µF
REFOUT
320
310
300
290
280
270
-40
= 20mA,
FIGURE 2. V
-15
CC
shorted with V
1.219
TEMPERATURE (°C)
MIN
SW
-10
20
-
-
-
-
-
-
10
vs TEMPERATURE
CC5
1.238
TYP
7.48
7.48
100
150
2.5
20
-
-
, T
35
A
= 25°C (Continued)
1.257
MAX
+10
-
-
-
-
-
-
-
60
October 13, 2005
UNITS
FN9169.1
mA
ms
µA
µA
µA
°C
°C
%
V
85