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SC2603AEVB bảng dữ liệu(PDF) 2 Page - Semtech Corporation

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SC2603AEVB bảng dữ liệu(HTML) 2 Page - Semtech Corporation

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 2007 Semtech Corp.
www.semtech.com
SC2603A
POWER MANAGEMENT
Absolute Maximum Rating
Electrical Characteristics
Note:
(1) Mounting pad has to be larger than one square inch on two sided printed circuit board with minimum 1 ounce copper
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. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device
reliability.
Parameter
Symbol
Maximum
Units
Input Voltage
V
IN to GND
-0.3 to 20
V
GATE Pin Voltage
V
GATE
-0.3 to 20
V
EN/SS Pin Voltage
V
EN/SS
-0.3 to 7
V
FB Pin Voltage
V
FB
-0.3 to 7
V
Thermal Resistance Junction to Ambient(1)
θ
JA
165
°C/W
Thermal Resistance Junction to Case
θ
JC
102
°C/W
Maximum Junction Temperature
T
J
150
°C
Storage Temperature Range
T
STG
-45 to +150
°C
Lead Temperature (Soldering)10 sec
T
LEAD
300
°C
ESD Rating (Human Body Model)
ESD
2
kV
Unless specified: V
IN = 2V, VO = 25V; TA = TJ = -40°C to 25°C
Parameter
Symbols
Conditions
Min
Typ
Max
Units
General
V
IN Supply Voltage
V
IN
4.5
16
V
V
IN UVLO Threshold
V
UVLO
V
IN ramping up
4.2
4.5
V
V
IN UVLO Hysteresis
V
HYS
400
mV
V
IN Supply Current
Current into V
IN pin during switching
6.0
9.0
mA
V
IN Shutdown Current
EN/SS=Low
5.0
6.0
mA
Error Amplifier
Reference Voltage
V
FB
1.225
1.250
1.275
V
Feedback Bias Current
I
FB
V
IN = 12V, VFB = VEN/SS
2.0
8.0
µ
A
Error Amplifier Gain(1)
105
V/V
Oscillator
Oscillator Frequency
T
A = 25 °C
190
200
210
kHz
Oscillator Frequency Shift
V
FB < VREF /2
50
kHz
Maximum Duty Cycle
90
95
%
Internal Ramp Peak
V
R_PEAK
1.4
V
Internal Ramp Valley
V
R_VALLEY
0.4
V



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