SC2677 查看數據表（PDF） - Semtech Corporation
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SC2677 Datasheet PDF : 9 Pages
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SC2677
POWER MANAGEMENT
Absolute Maximum Rating
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
Limits
Units
VCC to GND
PGND to GND
VIN
-0.3 to 15
V
±1
V
BST1, BST2 to GND
-0.3 to 20
V
BSTC to GND
-0.3 to 20
V
-IN1, +/-IN2 to GND
7
V
COMP1, COMP2 to GND
7
V
DH1, DH2 to GND
-0.3 to 20
V
DL1, DL2 to GND
-0.3 to BSTC + 0.3
V
-3 peak (50nS) (1)
V
PWRGD to GND
PHASING
VCC + 0.3
V
7
V
SS/ENA to GND
-0.3 to 7
V
Thermal Resistance Junction to Case
θJC
Thermal Resistance Junction to Ambient
θJA
Operating Ambient Temperature Range
TA
Operating Junction Temperature Range
TJ
Storage Temperature Range
TSTG
Lead Temperature (Soldering) 10 sec
TLEAD
Electrical Characteristics
Unless Specified: VCC = 4.75 to 5.25V, GND = PGND = 0V, FB = VO, TJ = 25°C, VBSTC = VBST = 12V
Parameter
Conditions
17
90
0 to 70
0 to 125
-65 to +150
300
Min
Typ
°C/W
°C/W
°C
°C
°C
°C
Max Units
Output Voltage
Supply Voltage
Supply Current
UVLO
UVLO Hysteresis
Reference
Reference Load Regulation
Reference Line Regulation
Output Line Regulation
Gain (Gm) (Error Amplifier)
Bias Current Offset (Slave Error Amplifier)
Max Current (Error Amplifier)
Input Bias Current
Short Circuit Protection Threshold
Oscillator Frequency Range
© 2004 Semtech Corp.
VOUT = VFB
VCC
VCC = 5.0
VCC Ramp up Threshold
VCC
VREF source 10uA ~ 100uA
5V < V < 15V
CC
5V < VIN < 15V
COMP pin source 100uA
Source
Sink
-IN1, +IN2, -IN2
2
0.495
4.5
4
-2
200
400
45
300
0.500
10
2.84
100
0.5
5
-1
250
460
55
0.505
V
15
V
mA
V
mV
V
0.2
%
0.7
%
0.7
%
6
mA/V
0
mV
uA
uA
2
µA
65
%
1000
kHz
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