SC4614 查看數據表（PDF） - Semtech Corporation
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SC4614 Datasheet PDF : 14 Pages
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SC4614
POWER MANAGEMENT
Electrical Characteristics
Unless specified: VCC = 5V to 18V; VFB = VO; VBST - VPN = 5V to 8.2V; TA = -40 to 85°C
Parameter
Symbol
Conditions
Switching Regulator
Reference Voltage
Load Regulation
Line Regulation
Operating Frequency
Ramp Amplitude (2)
Maximum Duty Cycle (2)
Minimum On-Time (2)
DH Rising/Falling Time
DL Rising/Falling Time
DH, DL Nonoverlapping Time
VREF
FS
Vm
DMAX
TON_MIN
tSRC_DH
tSINK_DH
tSRC_DL
tSINK_DL
TA = 25°C, VCC = 12V
IO = 0.2 to 4A
VCC = 10V to 14V
6V Swing at CL = 3.3nF
VBST-VPN = 8.2V
6V Swing at CL = 3.3nF
VDRV = 8.2V
Soft Start Time
Voltage Error Amplifier
TA = 25°C, VCC = 12V
Input Offset Voltage (2)
Input Offset Current (2)
Open Loop Gain (2)
Unity Gain Bandwidth (2)
Output Source Current
Output Sink Current
Slew Rate (2)
For CL=500pF Load
Min Typ Max Units
0.495 0.500 0.505 V
0.4
%
0.4
%
400 500 600 kHz
0.8
V
97
%
125
ns
41
ns
27
29
ns
42
30
ns
1.5
ms
2
mV
40
nA
80
dB
10
MHz
0.9
mA
0.9
mA
1.2
V/us
Notes:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
(2) Guaranteed by design, not tested in production.
2005 Semtech Corp.
3
www.semtech.com
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