SC1462 查看數據表（PDF） - Semtech Corporation
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SC1462 Datasheet PDF : 10 Pages
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SC1462
POWER MANAGEMENT
Absolute Maximum Ratings(1)
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
Supply Voltage
VIN
-0.3 to +6.0
Output Voltage
VOUT
-0.3 to +12
VOUT Short Circuit Duration
SC
Indefinite
Thermal Resistance Junction to Ambient(2)
θ
230
JA
Operating Ambient Temperature Range
TA
-40 to +85
Junction Temperature Range
TJ
-40 to +125
Storage Temperature Range
TSTG
-65 to +150
Peak IR Flow Temperature, SC1462ISKTR
TLEAD
240
Peak IR Flow Temperature, SC1462ISKTRT
TLEAD
260
Notes:
1) This device is ESD sensitive. Use of standard ESD handlng precautions is required.
2) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad as per JESD51 standards.
V
V
°C/W
°C
°C
°C
°C
°C
Electrical Characteristics
Unless specified:
TA = -40°C to 85°C, SHDN = GND, 1.65V ≤ VIN ≤ 5.5V, Frequency =160kHz, CIN = COUT = CBUCKET = 3.3μF (ESR = 0.3Ω).
Parameter
Symbol
Conditions
Min Typ Max Units
Input Supply Voltage
Input Supply Current
Ouput Resistance(1)
Output Resistance(1)
Total Switch Resistance(2)
Total Switch Resistance(2)
Output Current
Oscillator Frequency
VIN
IIN
ROUT
ROUT
RSW
RSW
IOUT
fOSC
IOUT = 0, VIN = 2.5V
IOUT = 0, VIN = 3.6V
SHDN = VIN
VIN = 2.5V
VIN = 3.6V
VIN = 2.5V
VIN = 3.6V
VIN = 2.5V
VIN = 3.6V
1.65
5.5 V
140 260 μA
200 400 μA
0.1
1
μA
9.5 13.5 Ω
7.5 10.5 Ω
3
4.5
Ω
2
3
Ω
80 mA
80 mA
100 160 200 kHz
© 2005 Semtech Corp.
2
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