ISL97644 View Datasheet(PDF) - Intersil
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Description
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ISL97644 Datasheet PDF : 15 Pages
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ISL97644
Electrical Specifications VIN1 = VIN2 = ENABLE = 5V, VDD1 = VDD2 = 14V, VGH = 25V, AVDD = 10V, TA = -40°C to +85°C
Unless Otherwise Noted. (Continued)
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
VFB
IFB
RDS(ON)
EFF
Feedback Voltage (VFB)
FB Input Bias Current
Switch On Resistance
Peak Efficiency
ILOAD = 100mA, TA = +25°C
1.20
1.21
1.22
V
ILOAD = 100mA, TA = -40°C to +85°C 1.19
1.21
1.23
V
250
500
nA
150
300
mΩ
92
%
ILIM
DMAX
FOSC
Switch Current Limit
Max Duty Cycle
Oscillator Frequency
ISS
Soft-Start Slew Current
LDO REGULATOR
FREQ = 0V
FREQ = VIN2
SS < 1V, TA = +25°C
2.1
2.6
A
85
90
%
550
650
800
kHz
1.0
1.2
1.4
MHz
2.75
µA
VSL
Input Voltage Range VIN1
ADJ = LDO_OUT
ADJ OPEN
3.0
5.5
V
3.35
5.5
V
ADJ = 0V
3.8
5.5
V
VLDO
Output Voltage
ADJ = GND, ILDO = 1mA
ADJ = GND, ILDO = 350mA
3.31
V
3.29
V
ADJ OPEN, ILDO = 1mA
2.86
V
ADJ OPEN, ILDO = 350mA
2.84
V
ADJ = LDO_OUT, ILDO = 1mA
2.51
V
ADJ = LDO_OUT, ILDO = 350mA
2.49
V
ACCLDO
Overall Accuracy
1mA < ILDO < 350mA
-4
ΔVLDO/ΔVIN
Line Regulation
ILDO = 1mA, 3.0V < VIN1 < 5.5V
ΔVLDO/ΔIOUT Load Regulation
1mA < ILDO < 350mA
VDO
Dropout Voltage
Output drops by 2%, ILDO = 350mA
ILIML
Current Limit
Output drops by 2%
350
VCOM AMPLIFIER RLOAD = 10k, CLOAD = 10pF, Unless Otherwise Stated
2
0.75
300
400
4
%
mV/V
%
500
mV
mA
VSAMP
ISAMP
VOS
IB
CMIR
Supply Voltage
Supply Current
Offset Voltage
Noninverting Input Bias Current
Common Mode Input Voltage
Range
4.5
20
V
3
mA
3
20
mV
0
100
nA
0
VDD2
V
CMRR
Common-Mode Rejection Ratio
50
70
dB
PSRR
Power Supply Rejection Ratio
70
85
dB
VOH
Output Voltage Swing High
Iout(source) = 5mA
VDD2 - 50
mV
VOH
Output Voltage Swing High
Iout(source) = 50mA
VDD2 - 450
mV
VOL
Output Voltage Swing Low
Iout(sink) = 5mA
50
mV
VOL
Output Voltage Swing Low
Iout(sink) = 50mA
450
mV
4
FN9228.1
December 14, 2007
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