ISL6425 INTERSIL [Intersil Corporation], ISL6425 Datasheet - Page 6

• Manufacturer Part Number: ISL6425
• Description: Single Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-top Box Designs
• Manufacturer: INTERSIL [Intersil Corporation]

Electrical Specifications
NOTES:
LINEAR REGULATOR
Drop-Out Voltage
DSQIN, SEL18V INPUT PINs (Note 6)
Asserted Low
Asserted HIGH
Input Current
CURRENT SENSE
Input Bias Current
Overcurrent Threshold
ERROR AMPLIFIER
Open Loop Voltage Gain
Gain Bandwidth Product
PWM
Maximum Duty Cycle
Minimum Pulse Width
OSCILLATOR
Oscillator Frequency
THERMAL PROTECTION
Thermal Shutdown
Temperature Shutdown Threshold
Temperature Shutdown Hysteresis
3. Internal Digital Soft-start
4. Voltage programming signals VSEL and LLC are implemented via the I
5. Guaranteed by Design.
6. Unused DSQIN pin should be connected to GND. SEL18V pins is internally connected to GND by a 200K resistor.
IO = 450mA.
PARAMETER
6
V
ENT = L, DCL = L, DSQIN = L, I
access to the system. (Continued)
CC
= 12V, T
SYMBOL
I
A
GBP
BIAS
f
OL
o
A
= -20°C to +85°C, unless otherwise noted. Typical values are at T
Iout = 450mA (Note 4)
Static current mode, DCL = H
(Note 4)
(Note 4)
(Note 4)
Fixed at (10)(f
(Note 4)
(Note 4)
ISL6425
OUT
TEST CONDITIONS
tone
= 12mA, unless otherwise noted. See software description section for I
)
2
C bus.
MIN
325
200
1.7
70
10
90
-
-
-
-
-
-
-
TYP
700
400
220
150
1.2
A
88
93
20
20
1
-
-
-
= 25°C. EN = H, LLC = L,
MAX
500
240
0.8
-
-
-
-
-
-
-
-
-
-
February 8, 2005
UNITS
MHz
kHz
mV
FN9176.1
µA
nA
dB
ns
%
V
V
V
2
C