SC1541 データシートの表示（PDF） - Semtech Corporation
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SC1541 Datasheet PDF : 6 Pages
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SC1541
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not implied.
Parameter
Symbol
Maximum
Units
Maximum Input Pin Voltage
Power Dissipation
Thermal Resistance Junction to Case
SO-8
TO-263
VIN, VEN
PD
θJC
7
V
Internally Limited
W
39
°C/W
3
Thermal Resistance Junction to Ambient
SO-8(1)
TO-263
θJA
65
°C/W
60
Operating Junction Temperature Range
TJ
Storage Temperature Range
TSTG
Lead Temperature (Soldering) 10 Sec
TLEAD
Note:
(1) 1 inch square of 1/16” FR-4, double sided, 1 oz. minimum copper weight.
0 to 125
°C
-65 to 150
°C
300
°C
Electrical Characteristics
Unless otherwise specified: IO = 0mA to 1A, VEN = VIN, 1.8V Option: VIN = 3.2V to 7.0V, 2.5 Option: VIN = 3.9V to 7.0V,
3.3V Option: VIN = 4.7V to 7.0V. Values in bold apply over full operating temperature range.
Parameter
Symbol
Min
Typ
Max
Units
Output Voltage (1)
VOUT
VIN = 5V, IOUT = 0mA
-1
VOUT
+1
%
-2
+2
Line Regulation(1)
Load Regulation(1)
Dropout Voltage(1)(2)
Current Limit(1)
Quiescent Current
REG(LINE)
REG(LOAD)
VD
ICL
IQ
IOUT = 10mA
VIN = 5V
IOUT = 1A
VIN = VEN = 5V
0.035
0.2
%
0.2
0.4
%
1.10
1.30
V
1.1
A
5
7
mA
10
VIN = 5V, VEN < 0.25V
6
8
µA
10
Enable Pin Control Voltage
VEN
Enable Pin Current
IEN
Device OFF
Device ON
VEN = 0V, VIN = 5V (OFF)
VEN = VIN = 5V (ON)
0.25
0.45
V
(VOUT + 0.5) (VOUT + 0.8)
0.1
1.0
µA
15
25
2004 Semtech Corp.
2
www.semtech.com
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