SC1182 Ver la hoja de datos (PDF) - Semtech Corporation
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Lista de partido
SC1182 Datasheet PDF : 14 Pages
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SC1182 & SC1183
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
Symbol
Maximum
Units
VCC to AGND
PGNDL, PGNDH to GND
VIN
-0.3 to +7
V
±1
V
BSTH to PGNDH, BSTL to PGNDL
Operating Temperature Range
Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 Sec.
Thermal Impedance Junction to Ambient
Thermal Impedance Junction to Case
VBOOST
TA
TJ
TSTG
TL
θJA
θJC
-0.3 to +15
0 to +70
0 to +125
-65 to +150
300
80
25
V
°C
°C
°C
°C
°C/W
°C/W
Electrical Characteristics
Unless specified: VIN=4.75V to 5.25V; AGND=PGNDH=PGNDL=0V; VOSENSE=VO; 0mV< (CS+-CS-)< 60mV; LDOV= VBOOST= 11.4V to 12.6V; TA = 25°C
Parameter
Conditions
Min
Typ
Max
Units
Switching Section
Output Voltage
Supply Voltage
IO = 2A in Application Circuit
See Output Voltage Table
4.5
7
V
Supply Current
Load Regulation
Line Regulation
VIN = 5.0V
I = 0.8A to 15A
O
8
15
mA
1
%
0.5
%
Minimum operating voltage
4.2
V
Current Limit Voltage
60
70
80
mV
Oscillator Frequency
180
200
220
kHz
Oscillator Max Duty Cycle
90
95
%
Peak DH Sink/Source Current BSTH - DH = 4.5V, DH - PGNDH = 2V
1
A
Peak DL Sink/Source Current BSTL - DL = 4.5V, DL - PGNDL = 2V
1
A
Output Voltage Tempco
30
100
ppm/oC
Gain (AOL)
OVP threshold voltage
VOSENSE to VO
35
dB
120
%
OVP source current
Power good threshold voltage
VOVP = 3.0V
10
mA
88
112
%
Dead time
50
100
ns
© 2001 Semtech Corp.
2
www.semtech.com
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