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SC1408 数据表(PDF) 2 Page - Semtech Corporation

部件名 SC1408
功能描述  LOW VOLTAGE, BOOST DC-DC CONTROLLER
PDF  12 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC1408 数据表(HTML) 2 Page - Semtech Corporation

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© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
LOW VOLTAGE, BOOST DC-DC
CONTROLLER
SC1408
August 22, 2000
2
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
Input Voltage
BST to GND
-0.3 to 18
V
Small Signal Ground to Power Ground
GND to AGND
±0.1
V
GATE to GND
-0.3 to VBST+0.3
V
FB, SHDN, REF, ISENSE to GND
-0.3 to min. of VBST+0.3 or 5
V
Operating Temperature
T
A
-40 to +85
°C
Junction Temperature Range
T
J
-40 to +150
°C
Storage Temperature
T
STG
-65 to +160
°C
Lead Temperature (Soldering) 10 seconds
T
L
+300
°C
Thermal Resistance, Junction to Ambient
SO-8
MSOP-8
θ=
JA
165
206
°C/W
Thermal Resistance, Junction to Case
SO-8/MSOP-8
θ=
JC
40
°C/W
ELECTRICAL CHARACTERISTICS
(1)
Unless specified: V
OUT = 5V; ILOAD = 0mA; TA = +25°C
PARAMETER
SYM
CONDITIONS
MIN
TYP
MAX UNITS
Input Voltage
T
A = 25°C
1.8
16.5
V
T
A = -40°C to +85°C
1.8
16.5
V
Supply Current
V
OUT = 16.5V,
SHDN
≤=0.4V
T
A = -40°C to +85°C
110
140
uA
V
OUT = 10V,
1.6V
≤=SHDN ≤=5V
T
A = -40°C to +85°C
2
10
µA
Output Voltage
V
IN = 2.0V to 5.0V,
T
A = -40°C to +85°C
4.800
5.0
5.200
V
Load Regulation
V
IN = 2.0V, VOUT = 5V, ILOAD = 0mA to 500mA
60
mV/A
Line Regulation
V
IN = 2.7V to 4.0V, VOUT= 5V, ILOAD = 500mA
7
mV/V
Minimum Start Up Voltage
No load
1.8
V
Maximum Switch On Time
T
ON
9.6
16
22.4
µs
Minimum Switch Off Time
T
OFF
1.4
2.3
3.2
µs
Efficiency
V
IN = 4V, VOUT = 5V, ILOAD = 500mA
87
%
Reference Voltage
V
REF
I
REF = 0µA
T
A = -40°C to +85°C
1.176 1.200 1.224
V
Reference Load Regulation
0µA < I
REF < 100µA
-4
10
mV
Reference Line Regulation
5V < V
OUT < 16.5V
40
100
µV/V
FB Trip Point Voltage
V
FB
T
A = 25°C
T
A = -40°C to +85°C
1.176
1.200
1.224
V
FB Input Current
I
FM
T
A = 25°C
T
A = -40°C to +85°C
-4
+40
nA



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