LTC3780IUH(RevE) 데이터 시트보기 (PDF) - Linear Technology
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LTC3780IUH Datasheet PDF : 28 Pages
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ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3780EG#PBF
LTC3780EG#TRPBF
LTC3780EG
24-Lead Plastic SSOP
LTC3780IG#PBF
LTC3780IG#TRPBF
LTC3780IG
24-Lead Plastic SSOP
LTC3780EUH#PBF
LTC3780EUH#TRPBF 3780
32-Lead (5mm × 5mm) Plastic QFN
LTC3780IUH#PBF
LTC3780IUH#TRPBF
3780I
32-Lead (5mm × 5mm) Plastic QFN
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3780EG
LTC3780EG#TR
LTC3780EG
24-Lead Plastic SSOP
LTC3780IG
LTC3780IG#TR
LTC3780IG
24-Lead Plastic SSOP
LTC3780MPG
LTC3780MPG#TR
LTC3780MPG
24-Lead Plastic SSOP
LTC3780EUH
LTC3780EUH#TR
3780
32-Lead (5mm × 5mm) Plastic QFN
LTC3780IUH
LTC3780IUH#TR
3780I
32-Lead (5mm × 5mm) Plastic QFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
LTC3780
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 125°C
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C. VIN = 15V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
Main Control Loop
VOSENSE
Feedback Reference Voltage
ITH = 1.2V, –40°C ≤ T ≤ 85°C (Note 3)
–55°C ≤ T ≤ 125°C
l 0.792 0.800 0.808
l 0.792 0.800 0.811
IVOSENSE
Feedback Pin Input Current
(Note 3)
VLOADREG
Output Voltage Load Regulation
(Note 3)
∆ITH = 1.2V to 0.7V
l
∆ITH = 1.2V to 1.8V
l
VREF(LINEREG)
Reference Voltage Line Regulation
VIN = 4V to 30V, ITH = 1.2V (Note 3)
–5
–50
0.1
0.5
–0.1 –0.5
0.002 0.02
gm(EA)
gm(GBW)
IQ
VFCB
Error Amplifier Transconductance
Error Amplifier GBW
Input DC Supply Current
Normal
Standby
Shutdown Supply Current
Forced Continuous Threshold
ITH = 1.2V, Sink/Source = 3μA (Note 3)
(Note 8)
(Note 4)
VRUN = 0V, VSTBYMD > 2V
VRUN = 0V, VSTBYMD = Open
0.32
0.6
2400
1500
55
70
0.76 0.800 0.84
IFCB
VBINHIBIT
Forced Continuous Pin Current
Burst Inhibit (Constant Frequency)
Threshold
VFCB = 0.85V
Measured at FCB Pin
–0.30 –0.18 –0.1
5.3
5.5
UVLO
VOVL
ISENSE
VSTBYMD(START)
VSTBYMD(KA)
Undervoltage Reset
Feedback Overvoltage Lockout
Sense Pins Total Source Current
Start-Up Threshold
Keep-Alive Power-On Threshold
VIN Falling
Measured at VOSENSE Pin
VSENSE– = VSENSE+ = 0V
VSTBYMD Rising
VSTBYMD Rising, VRUN = 0V
l
3.8
4
0.84 0.86 0.88
–380
0.4
0.7
1.25
UNITS
V
V
nA
%
%
%/V
mS
MHz
μA
μA
μA
V
μA
V
V
V
μA
V
V
3780fe
3
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