參數(shù)資料
型號(hào): ISL97702IRZ
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: Boost with Dual Reference Outputs
中文描述: 1.2 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, DSO10
封裝: 3 X 3 MM, ROHS COMPLIANT, MO-229, DFN-10
文件頁(yè)數(shù): 3/13頁(yè)
文件大?。?/td> 489K
代理商: ISL97702IRZ
3
FN7462.0
October 13, 2005
Absolute Maximum Ratings
(T
A
= 25°C)
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6V
V
OUT
to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 31V
LX to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
OUT
+1V
VDDOUT, NSYNC, FB0, FB1, SEL, NEN
to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VDD+0.3V
Continuous Current in VDD, GND, VDDOUT, LX . . . . . . . . . 650mA
Continuos Current in NSYNC, FB0, FB1, SEL, NEN. . . . . . . . 10mA
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
T
A
Ambient Operating Temperature. . . . . . . . . . . . .-40°C to +85°C
T
J
Operating Junction Temperature. . . . . . . . . . . . . . . . . . .+125°C
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.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed.
Electrical Specifications
VDD = 3.6V, GND = NEN = 0V, SEL = NSYNC = VDD, R1 = 390K, R2 = 39K, R3 = 26.1K,
L = 10μH, T
A
= -40°C to +85°C unless otherwise stated
PARAMETER
DESCRIPTION
CONDITION
MIN
TYP
MAX
UNIT
SUPPLY
VDD
Supply Operating Voltage Range
2.3
5.5
V
I
DIS
Supply Current when Disabled
NEN = VDD
0.1
3
μA
LOGIC INPUTS – NEN, NSYNC, SEL
Rup
Pull-up Resistor
Enabled, Input at GND
150
250
350
k
I
IL
Leakage Current when Disabled
Disabled, Input at GND
-1
1
μA
VHI
Logic High Threshold
1.8
V
VLO
Logic Low Threshold
0.7
V
POWER-ON RESET – VDD
V
RES_ON
Power On Reset Threshold
VDD rising
2.2
2.3
V
V
RES_OFF
Power Off Threshold
VDD falling
1.9
2
V
LX OUTPUT DRIVER
fosc
LX Switching Frequency with Internal
Oscillator
0.9
1
1.1
MHz
fsync
LX Switching Frequency when
Externally Synchronized at NSYNC
f
(NSYNC)
-
ton-min
Minimum On-Time
FB1 = 0V, I(LX) > Ilim(LX)
60
ns
toff-min
Minimum Off-time
(
Maximum Duty Cycle)
FB1 = 0V, I(LX) < Ilim(LX)
60
ns
Ron
LX On-Resistance
I(LX) = 100mA
0.4
Ileak
LX Leakage Current
NEN = VDD, V(LX) = 30V
1
5
μA
Ipeak
LX Peak Current Limit
t > 8.32ms (end of soft-start)
1200
mA
SCHOTTKY DIODE – LX, V
OUT
Vdiode
Forward Voltage from LX to V
OUT
I = 10mA, T
A
= +25°C
0.4
0.5
0.6
V
I = 10mA, T
A
= -40°C to +85°C
0.3
0.5
0.7
V
FEEDBACK INPUTS AND SELECTION – FB0, FB1, SEL
Vref
FB0
Input Reference Voltage on FB0
SEL = GND, T
A
= +25°C
1.13
1.15
1.17
V
SEL = GND, T
A
= -40°C to +85°C
1.12
1.15
1.18
v
Vref
FB1
Input Reference Voltage on FB1
SEL = VDD, T
A
= +25°C
1.135
1.15
1.165
V
SEL = GND, T
A
= -40°C to +85°C
1.125
1.15
1.175
V
I
FB0
Input Current in FB0
SEL = GND, FB0 = 1.3V
-0.2
0.2
μA
I
FB1
Input Current in FB1
SEL = VDD, FB1 = 1.3V
-0.2
0.2
μA
ISL97702
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