ISL97646 Просмотр технического описания (PDF) - Intersil
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ISL97646 Datasheet PDF : 15 Pages
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ISL97646
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
ILOAD = 100mA, TA = -40°C to +85°C
1.20
1.19
1.21
1.21
250
150
92
1.22
V
1.23
V
500
nA
300
mΩ
%
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
85
90
550
650
1.0
1.2
2.75
A
%
800
kHz
1.4
MHz
µA
VSL
Input Voltage Range VIN1
ADJ = LDO_OUT
ADJ OPEN
3.0
3.35
5.5
V
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
VSAMP
Supply Voltage
4.5
ISAMP
Supply Current
VOS
Offset Voltage
IB
Noninverting Input Bias Current
CMIR
Common Mode Input Voltage
0
Range
2
0.75
300
400
3
3
0
4
%
mV/V
%
500
mV
mA
20
V
mA
20
mV
100
nA
VDD2
V
CMRR
Common-Mode Rejection Ratio
50
70
dB
PSRR
Power Supply Rejection Ratio
70
85
dB
VOH
VOH
VOL
VOL
Output Voltage Swing High
Output Voltage Swing High
Output Voltage Swing Low
Output Voltage Swing Low
IOUT(SOURCE) = 5mA
IOUT(SOURCE) = 50mA
IOUT(SINK) = 5mA
IOUT(SINK) = 50mA
VDD2 - 50
mV
VDD2 - 450
mV
50
mV
450
mV
4
FN6265.1
December 14, 2007
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