參數(shù)資料
型號(hào): LTC1266IS#TR-5
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16
封裝: 0.150 INCH, PLASTIC, SO-16
文件頁(yè)數(shù): 14/20頁(yè)
文件大?。?/td> 245K
代理商: LTC1266IS#TR-5
3
LTC1266
LTC1266-3.3/LTC1266-5
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VSENSE 1 Current Sense Threshold
VBINH = 0V
(Burst Mode Operation Enabled)
LTC1266
VSENSE– = 3.3V, VFB = VOUT/2.64 + 25mV (Forced)
25
mV
VSENSE– = 3.3V, VFB = VOUT/2.64 – 25mV (Forced)
q
135
155
175
mV
LTC1266-3.3
VSENSE– = VOUT + 100mV (Forced)
25
mV
VSENSE– = VOUT – 100mV (Forced)
q
135
155
175
mV
LTC1266-5
VSENSE– = VOUT + 100mV (Forced)
25
mV
VSENSE– = VOUT – 100mV (Forced)
q
135
155
175
mV
VSENSE 2
Current Sense Threshold
VBINH = 2.1V
(Burst Mode Operation Disabled)
LTC1266
VSENSE– = 3.3V, VFB = VOUT/2.64 + 25mV (Forced)
– 20
mV
VSENSE– = 3.3V, VFB = VOUT/2.64 – 25mV (Forced)
q
135
155
175
mV
LTC1266-3.3
VSENSE– = VOUT + 100mV (Forced)
– 20
mV
VSENSE– = VOUT – 100mV (Forced)
q
135
155
175
mV
LTC1266-5
VSENSE– = VOUT + 100mV (Forced)
– 20
mV
VSENSE– = VOUT – 100mV (Forced)
q
135
155
175
mV
VSHDN
Shutdown Pin Threshold
0.6
0.8
2
V
ISHDN
Shutdown Pin Input Current
0V < VSHDN < 8V, VIN = 16V
1.2
5
A
IPINV
Phase Invert Pin Input Current
0V < VPINV < 18V, VIN = 18V
0.2
1
A
VBINH
Burst Mode Operation
VIN = 7V
0.8
1.2
2
V
Inhibit Pin Threshold
IBINH
Burst Mode Operation
0V < VBINH < 18V, VIN = 18V
0.2
1
A
Inhibit Pin Input Current
ICT
CT Pin Discharge Current
VSENSE+ = VOUT – 100mV, VSENSE– = VOUT – 300mV
50
70
90
A
VOUT = 0V
2
10
A
tOFF
Off-Time (Note 4)
CT = 390pF, ILOAD = 700mA
4
5
6
s
tMAX
Max On-Time
VOUT = 0V, VIN = 18V
60
s
tr, tf
Driver Output Transition Times (Note 7)
CL = 3000pF (Pins 1, 16), VIN = 6V
100
200
ns
VCLAMP
Output Voltage Clamp in
VBINH = 2.1V
Burst Mode Operation Inhibit
LTC1266
Measured at VFB
1.30
V
LTC1266-3.3
Measured at VSENSE–
3.43
V
LTC1266-5
Measured at VSENSE–
5.20
V
VLBTRIP
Low-Battery Trip Point
VIN = 5V
1.14
1.25
1.35
V
VIN = 12V
1.17
1.30
1.42
V
ILBLEAK
Max Leakage Current Into Pin 14
VLBOUT = 18V, VLBIN = 2V
25
200
nA
ILBSINK
Max Sink Current Into Pin 14
VLBOUT = 1V, VLBIN = 0V, 2.5V < VIN < 18V
1
8
mA
ILBIN
Max Leakage Current Into Pin 13
VLBIN = 18V
0.2
1
A
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, VSHDN = VBINH = 0V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VFB
Feedback Voltage
VIN = 9V, ILOAD = 700mA, VPINV = VPWR = 14V,
Topside Switch = N-Ch
LTC1266AIS
1.246
1.265
1.290
V
LTC1266CS, LTC1266IS
1.210
1.265
1.290
V
VOUT
Regulated Output Voltage
VIN = 9V, ILOAD = 700mA, VPINV = VPWR = 14,
Topside Switch = N-Ch
LTC1266CS-3.3, LTC1266IS-3.3
3.23
3.33
3.43
V
LTC1266CS-5, LTC1266IS-5
4.90
5.05
5.20
V
–40
°C < TA < 85°C (Note 5), VIN = 10V, unless otherwise noted.
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