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參數(shù)資料
| 型號： | LTC3414MPFE#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 9.5 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | 4.40 MM, LEAD FREE, PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 268K |
| 代理商： | LTC3414MPFE#PBF |
LTC3414
2
3414fb
Input Supply Voltage ................................... –0.3V to 6V
ITH, RUN/SS, VFB,
SYNC/MODE Voltages .................................. –0.3 to VIN
SW Voltages ................................. –0.3V to (VIN + 0.3V)
Peak SW Sink and Source Current ......................... 9.5A
Operating Temperature Range (Note 2)
E, I Grades .............................................. – 40
°C to 85°C
MP Grade ............................................. – 55
°C to 125°C
Junction Temperature (Notes 5, 6) ....................... 125
°C
Storage Temperature Range ................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ORDER PART
NUMBER
EXPOSED PAD (PIN 21), MUST BE SOLDERED TO PCB
TJMAX = 125°C, θJA = 38°C/W, θJC = 10°C/W
LTC3414EFE
LTC3414IFE
LTC3414MPFE
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
(Note 1)
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3414E is guaranteed to meet performance specifications
from 0
°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3414I is guaranteed over the full
–40
°C to 85°C operating temperature range. The LTC3414MP is
guaranteed over the full –55
°C to 125°C operating tempaerature range.
Note 3: The LTC3414 is tested in a feedback loop that adjusts VFB to
The
● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.3V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Voltage Range
●
2.25
5.5
V
IFB
Feedback Pin Input Current
(Note 3)
0.2
μA
VFB
Regulated Feedback Voltage
E, I Grade (Note 3)
●
0.784
0.800
0.816
V
MP Grade
0.780
0.800
0.816
V
ΔVFB
Reference Voltage Line Regulation
VIN = 2.7V to 5.5V (Note 3)
●
0.04
0.2
%V
VLOADREG
Output Voltage Load Regulation
Measured in Servo Loop, VITH = 0.36V
●
0.02
0.2
%
Mesured in Servo Loop, VITH = 0.84V
●
–0.02
–0.2
%
ΔVPGOOD
Power Good Range
±7.5
±9%
RPGOOD
Power Good Resistance
120
200
Ω
IQ
Input DC Bias Current
(Note 4)
Active Current
VFB = 0.75V, VITH = 1.2V
250
330
μA
Sleep
VFB = 1V, VITH = 0V, VSYNC/MODE = 0V
64
100
μA
Shutdown
VRUN = 0V
0.02
1
μA
fOSC
Switching Frequency
ROSC = 294k
0.88
1.00
1.12
MHz
Switching Frequency Range
0.3
4
MHz
fSYNC
SYNC Capture Range
0.3
4
MHz
RPFET
RDS(ON) of P-Channel FET
ISW = 300mA
67
100
m
Ω
RNFET
RDS(ON) of N-Channel FET
ISW = –300mA
50
100
m
Ω
ILIMIT
Peak Current Limit
6
8
A
VUVLO
Undervoltage Lockout Threshold
1.75
2.00
2.25
V
ILSW
SW Leakage Current
VRUN = 0V, VIN = 5.5V
0.1
1.0
μA
VRUN
RUN Threshold
0.5
0.65
0.8
V
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
PGND
RT
SYNC/MODE
RUN/SS
SGND
NC
PVIN
SW
PGND
VFB
ITH
PGOOD
SVIN
NC
PVIN
SW
PGND
FE PACKAGE
20-LEAD PLASTIC TSSOP
21
achieve a specified error amplifier output voltage (ITH).
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5: TJ is calculated from the ambient temperature TA and power
dissipation PD as follows: TJ =TA + (PD)(38°C/W)
Note 6: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125
°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliabability.
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/
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