參數(shù)資料
型號(hào)： ISL97646IRZ-TK
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： Boost + LDO + VON Slice + VCOM
中文描述： 3.1 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PQCC24
封裝： 4 X 4 MM, ROHS COMPLIANT, PLASTIC, QFN-24
文件頁(yè)數(shù)： 4/15頁(yè)
文件大小： 450K
代理商： ISL97646IRZ-TK
4
FN6265.0
December 21, 2006
V
FB
Feedback Voltage (V
FB
)
I
LOAD
= 100mA, T
A
= +25°C
1.20
1.21
1.22
V
I
LOAD
= 100mA, T
A
= -40°C to +85°C
1.19
1.21
1.23
V
I
FB
FB Input Bias Current
250
500
nA
R
DS(ON)
Switch On Resistance
150
300
m
Ω
EFF
Peak Efficiency
92
%
I
LIM
Switch Current Limit
2.1
2.6
3.1
A
D
MAX
Max Duty Cycle
85
90
%
F
OSC
Oscillator Frequency
FREQ = 0V
550
650
800
kHz
FREQ = V
IN2
1.0
1.2
1.4
MHz
I
SS
Soft-Start Slew Current
SS < 1V, T
A
= +25°C
2.75
μA
LDO REGULATOR
V
SL
Input Voltage Range V
IN1
ADJ = LDO_OUT
3.0
5.5
V
ADJ OPEN
3.35
5.5
V
ADJ = 0V
3.8
5.5
V
V
LDO
Output Voltage
ADJ = GND, ILDO = 1mA
3.31
V
ADJ = GND, ILDO = 350mA
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
ACC
LDO
Overall Accuracy
1mA < ILDO < 350mA
-4
4
%
Δ
V
LDO
/
Δ
V
IN
Line Regulation
ILDO = 1mA, 3.0V < V
IN1
< 5.5V
2
mV/V
Δ
V
LDO
/
Δ
I
OUT
Load Regulation
1mA < ILDO < 350mA
0.75
%
V
DO
Dropout Voltage
Output drops by 2%, ILDO = 350mA
300
500
mV
I
LIML
Current Limit
Output drops by 2%
350
400
mA
VCOM AMPLIFIER
RLOAD = 10k, CLOAD = 10pF, Unless Otherwise Stated
V
SAMP
Supply Voltage
4.5
20
V
I
SAMP
Supply Current
3
mA
V
OS
Offset Voltage
3
20
mV
I
B
Noninverting Input Bias Current
0
100
nA
CMIR
Common Mode Input Voltage
Range
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
Electrical Specifications
V
IN1
= V
IN2
= ENABLE = 5V, VDD1 = VDD2 = 14V, VGH = 25V, AVDD = 10V, T
A
= -40°C to +85°C
Unless Otherwise Noted.
(Continued)
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
ISL97646
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