参数资料
型号: LTC3780MPG#PBF
厂商: Linear Technology
文件页数: 3/30页
文件大小: 0K
描述: IC REG CTRLR BST PWM CM 24-SSOP
标准包装: 59
PWM 型: 电流模式
输出数: 1
频率 - 最大: 440kHz
占空比: 99%
电源电压: 4 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -55°C ~ 125°C
封装/外壳: 24-SSOP(0.209",5.30mm 宽)
包装: 管件
LTC3780
ORDER INFORMATION
LEAD FREE FINISH
LTC3780EG#PBF
LTC3780IG#PBF
LTC3780EUH#PBF
LTC3780IUH#PBF
LEAD BASED FINISH
LTC3780EG
LTC3780IG
LTC3780MPG
LTC3780EUH
LTC3780IUH
TAPE AND REEL
LTC3780EG#TRPBF
LTC3780IG#TRPBF
LTC3780EUH#TRPBF
LTC3780IUH#TRPBF
TAPE AND REEL
LTC3780EG#TR
LTC3780IG#TR
LTC3780MPG#TR
LTC3780EUH#TR
LTC3780IUH#TR
PART MARKING
LTC3780EG
LTC3780IG
3780
3780I
PART MARKING
LTC3780EG
LTC3780IG
LTC3780MPG
3780
3780I
PACKAGE DESCRIPTION
24-Lead Plastic SSOP
24-Lead Plastic SSOP
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
PACKAGE DESCRIPTION
24-Lead Plastic SSOP
24-Lead Plastic SSOP
24-Lead Plastic SSOP
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
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
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/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T A = 25°C. (Note 7) V IN = 15V unles s otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
V OSENSE
I VOSENSE
V LOADREG
V REF(LINEREG)
Feedback Reference Voltage
Feedback Pin Input Current
Output Voltage Load Regulation
Reference Voltage Line Regulation
I TH = 1.2V, –40°C ≤ T ≤ 85°C (Note 3)
–55°C ≤ T ≤ 125°C
(Note 3)
(Note 3)
? I TH = 1.2V to 0.7V
? I TH = 1.2V to 1.8V
V IN = 4V to 30V, I TH = 1.2V (Note 3)
l
l
l
l
0.792
0.792
0.800
0.800
–5
0.1
–0.1
0.002
0.808
0.811
–50
0.5
–0.5
0.02
V
V
nA
%
%
%/V
g m(EA)
g m(GBW)
Error Amplifier Transconductance
Error Amplifier GBW
I TH = 1.2V, Sink/Source = 3μA (Note 3)
(Note 8)
0.32
0.6
mS
MHz
I Q
V FCB
Input DC Supply Current
Normal
Standby
Shutdown Supply Current
Forced Continuous Threshold
(Note 4)
V RUN = 0V, V STBYMD > 2V
V RUN = 0V, V STBYMD = Open
0.76
2400
1500
55
0.800
70
0.84
μA
μA
μA
V
I FCB
V BINHIBIT
UVLO
V OVL
I SENSE
V STBYMD(START)
V STBYMD(KA)
Forced Continuous Pin Current
Burst Inhibit (Constant Frequency)
Threshold
Undervoltage Reset
Feedback Overvoltage Lockout
Sense Pins Total Source Current
Start-Up Threshold
Keep-Alive Power-On Threshold
V FCB = 0.85V
Measured at FCB Pin
V IN Falling
Measured at V OSENSE Pin
V SENSE– = V SENSE+ = 0V
V STBYMD Rising
V STBYMD Rising, V RUN = 0V
l
–0.30
0.84
0.4
–0.18
5.3
3.8
0.86
–380
0.7
1.25
–0.1
5.5
4
0.88
μA
V
V
V
μA
V
V
3780ff
For more information www.linear.com/LTC3780
3
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