Current into RDCM Pin......................................... ±10mA
Current into UVLO1 Pin.......................................... ±1mA
Current into UVLO2 Pin.......................................... ±1mA
Current into OVLO1 Pin .......................................... ±1mA
Current into OVLO2 Pin.......................................... ±1mA
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range (Note 2).. –40°C to 125°C
Storage Temperature Range .................. –65°C to 125°C
pin conFiguraTion
TOP VIEW
RV
TRANS
UVLO1
TOP VIEW
RV
TRANS
UVLO1
OVLO1
UVLO2
OVLO2
FAULT
DONE
CHARGE
CLAMP
1
2
3
4
5
6
7
8
9
21
20 RDCM
19 NC
18 RV
OUT
17 NC
16 RBG
15 HVGATE
14 LVGATE
13 V
CC
12 CSP
11 CSN
OVLO1 1
UVLO2 2
OVLO2 3
FAULT
4
DONE
5
CHARGE 6
7
CLAMP
8
FB
9 10
CSN
CSP
21
RDCM
16 RV
OUT
15 NC
14 RBG
13 HVGATE
12 LVGATE
11 V
CC
NC
20 19 18 17
FB 10
FE PACKAGE
20-LEAD PLASTIC TSSOP
T
JMAX
= 125°C,
θ
JA
= 38°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
UFD PACKAGE
20-PIN (4mm
×
5mm) PLASTIC QFN
T
JMAX
= 125°C,
θ
JA
= 43°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE TIED TO PCB
orDer inForMaTion
LEAD FREE FINISH
LT3751EFE#PBF
LT3751IFE#PBF
LT3751EUFD#PBF
LT3751IUFD#PBF
LEAD BASED FINISH
LT3751EFE
LT3751IFE
LT3751EUFD
LT3751IUFD
TAPE AND REEL
LT3751EFE#TRPBF
LT3751IFE#TRPBF
LT3751EUFD#TRPBF
LT3751IUFD#TRPBF
TAPE AND REEL
LT3751EFE#TR
LT3751IFE#TR
LT3751EUFD#TR
LT3751IUFD#TR
PART MARKING*
LT3751FE
LT3751FE
3751
3751
PART MARKING*
LT3751FE
LT3751FE
3751
3751
PACKAGE DESCRIPTION
20-Lead Plastic TSSOP
20-Lead Plastic TSSOP
20-Pin (4mm × 5mm) Plastic QFN
20-Pin (4mm × 5mm) Plastic QFN
PACKAGE DESCRIPTION
20-Lead Plastic TSSOP
20-Lead Plastic TSSOP
20-Pin (4mm × 5mm) Plastic QFN
20-Pin (4mm × 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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/
3751fc
2
LT3751
elecTrical characTerisTics
PARAMETER
V
CC
Voltage
RV
TRANS
Voltage
V
CC
Quiescent Current
RV
TRANS
, R
DCM
Quiescent Current
RV
OUT
Quiescent Current
UVLO1, UVLO2, OVLO1, OVLO2 Clamp Voltage
RV
TRANS
, RV
OUT
, R
DCM
Clamp Voltage
CHARGE Pin Current
(Note 3)
Not Switching, CHARGE = 5V
Not Switching, CHARGE = 0.3V
(Note 4)
Not Switching, CHARGE = 5V
Not Switching, CHARGE = 0.3V
(Note 4)
Not Switching, CHARGE = 5V
Not Switching, CHARGE = 0.3V
Measured at 1mA into Pin, CHARGE = 0V
Measured at 1mA into Pin, CHARGE = 0V
CHARGE = 24V
CHARGE = 5V
CHARGE = 0V
l
l
The
l
denotes the specifications which apply over the full operating
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Embedded System
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