LT3477IFE データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LT3477IFE Datasheet PDF : 20 Pages
| |||
LT3477
ABSOLUTE MAXIMUM RATINGS (Note 1)
SW Pin Voltage ....................................................... 42V
VIN, SHDN Pin Voltage ............................................ 25V
FBP, FBN Pin Voltage ................................................ 6V
VREF Pin Voltage ....................................................... 6V
RT, VC, SS Pin Voltage .............................................. 6V
IADJ1, IADJ2 Pin Voltage ........................................... 25V
ISP1, ISP2, ISN1, ISN2 Pin Voltage .............................. 42V
Junction Temperature .......................................... 125°C
Operating Temperature Range (Note 2)
LT3477E ............................................. – 40°C to 85°C
LT3477I ............................................ – 40°C to 125°C
Storage Temperature Range ................. – 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
TSSOP .............................................................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
20 19 18 17 16
NC 1
NC 2
VIN 3
RT 4
SHDN 5
15 ISP1
14 ISN2
21
13 ISP2
12 IADJ1
11 IADJ2
6 7 8 9 10
UF PACKAGE
20-LEAD (4mm × 4mm) PLASTIC QFN
TJMAX = 125°C, θJA = 37°C/W
EXPOSED PAD (PIN 21) IS PGND (MUST BE SOLDERED TO PCB)
TOP VIEW
VIN 1
RT 2
SHDN 3
20 NC
19 NC
18 NC
SS 4
17 SW
VC 5
FBN 6
16 SW
21
15 GND
FBP 7
VREF 8
IADJ2 9
IADJ1 10
14 ISN1
13 ISP1
12 ISN2
11 ISP2
FE PACKAGE
20-LEAD PLASTIC TSSOP
TJMAX = 150°C, θJA = 40°C/W
EXPOSED PAD (PIN 21) IS PGND (MUST BE SOLDERED TO PCB)
ORDER PART NUMBER
UF PART MARKING
ORDER PART NUMBER
SW PART MARKING
LT3477EUF
3477
LT3477IUF
3477
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LT3477EFE
LT3477IFE
ELECTRICAL CHARACTERISTICS The ● indicates specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 2.5V, VSHDN = 2.5V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
Minimum Input Voltage
Quiescent Current
Reference Voltage
Reference Voltage Line Regulation
Maximum VREF Pin Current
VSHDN = 0V
VSHDN = 2.5V, VC = 0.3V (Not Switching)
E Grade
I Grade
2.5V < VIN < 25V, VC = 0.3V
Out of Pin
●
● 1.216
● 1.210
2.3
0.1
5.0
1.235
1.235
0.01
2.5
1.0
7.5
1.250
1.260
0.03
100
UNITS
V
µA
mA
V
V
%/V
µA
3477fb
2
Share Link: 