參數(shù)資料
型號(hào)： EL7584IR-T7
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： 4-Channel DC:DC Converter
中文描述： 1.75 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO24
封裝： MO-153, TSSOP-24
文件頁數(shù)： 2/16頁
文件大?。?/td> 860K
代理商： EL7584IR-T7
Absolute Maximum Ratings
(T
A
= 25°C)
LX Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18V
V
DDB
, V
DDP
, V
DDN
V
DDC
Maximum Continuous V
BOOST
Output Current. . . . . . . . . . . 800mA
18V
16.5V
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
2
FN7317.2
February 4, 2005
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are
at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Specifications
V
IN
= 3.3V, V
BOOST
= 12V, R
OSC
= 62k
, T
A
= 25°C, Unless Otherwise Specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
DC/DC BOOST CONVERTER
IQ1_B
Quiescent Current - Shut-down
EN = 0V
0.8
10
μA
IQ2_B
Quiescent Current - Switching
EN = V
DDB
4.8
8
mA
V(FBB)
Feedback Voltage
1.275
1.300
1.325
V
V
REF
Reference Voltage
1.260
1.310
1.360
V
V
ROSC
Oscillator Set Voltage
1.260
1.325
1.390
V
I(FBB)
Feedback Input Bias Current
0.1
μA
V
DDB
Boost Converter Supply Range
2
17
V
D
MAX
Maximum Duty Cycle
85
92
%
I(LX)
MAX
Peak Internal FET Current
1.75
A
R
DS-ON
Switch On Resistance
at V
BOOST
= 10V, I(LX) total = 350mA
0.22
I
LEAK-SWITCH
Switch Leakage Current
I(LX) total
1
μA
V
BOOST
Output Range
V
BOOST
> V
IN
+ V
DIODE
5
17
V
V
BOOST
/
V
IN
Line Regulation
2.7V < V
IN
< 13.2V, V
BOOST
= 15V
0.1
%
V
BOOST
/
I
O1
Load Regulation
50mA < I
O1
< 250mA
0.5
%
F
OSC-RANGE
Frequency Range
R
OSC
range = 240k
to 60k
200
1200
kHz
F
OSC1
Switching Frequency
R
OSC
= 62k
900
1000
1100
kHz
V
COM
BUFFER
V
DDC
Supply Voltage Range
6
15
V
IQ1, V
DDC
V
DDC
Disable Current
V
DDC
= 12V, EN = 0V
5.5
20
μA
IQ2, V
DDC
V
DDC
Enable Current
V
DDC
= 12V, V
EN
= V
DDB
, no load
1.7
5
mA
V
COM
-offset
Accuracy of V
COM
Output Voltage
2V < V
COM
< (V
DDC
- 2V)
-10
+10
mV
I(INC)
V
COM
Input Bias Currents
Current magnitude
-0.1
0.01
0.1
μA
R
O
(V
COM
)
V
COM
Output Impedance
V
DDC
= V
BOOST
= 12V, V
COM
= 6V with
-100mA < I
LOAD
< 100mA
C
LOAD
for V
COM
> 0.47μF, MLCC
0.25
I
COM
(max)
Output Current Limit
150
mA
PSRR
Supply Voltage Rejection
V
INC
= V
DDC/2
, 9V < V
DDC
< 15V
60
102
dB
CMRR
Common Mode Voltage Rejection
V
DDC
= 12V, 2V < V
INC
< 10V
60
93
dB
EL7584
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