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參數(shù)資料
| 型號(hào)： | LTC3427EDC#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 2 MM, LEAD FREE, PLSTIC, DFN-6 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 202K |
| 代理商： | LTC3427EDC#PBF |
2
LTC3427
3427fa
VIN, VOUT Voltages ...................................... – 0.3V to 6V
SHDN, FB Voltages ..................................... – 0.3V to 6V
SW Voltage
DC .......................................................... – 0.3V to 6V
Pulsed < 100ns ...................................... – 0.3V to 7V
Operating Temperature Range
(Notes 2, 5) ............................................ – 40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
(Note 1)
LTC3427EDC
ORDER PART NUMBER
DC PART MARKING
LBSY
TJMAX = 125°C, θJA = 60°C/W TO 85°C/W
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
V
OUT
FB
SHDN
SW
GND
V
IN
DC PACKAGE
6-LEAD (2mm
× 2mm) PLASTIC DFN
4
5
7
6
3
2
1
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Start-Up Voltage
ILOAD < 1mA
●
1.6
1.8
V
Output Voltage Adjust Range
●
1.8
5.25
V
Feedback Voltage
●
1.215
1.24
1.265
V
Feedback Input Current
VFB = 1.24V
1
50
nA
Quiescent Current—Shutdown
VSHDN = 0V, VOUT = 0V
0.01
1
A
Quiescent Current—Active
VFB = 1.5V (Note 3)
350
550
A
NMOS Switch Leakage
0.1
5
A
PMOS Switch Leakage
0.1
5
A
NMOS Switch-On Resistance
0.525
PMOS Switch-On Resistance
0.575
NMOS Current Limit
●
500
mA
Current Limit Delay to Output
(Note 4)
40
ns
Maximum Duty Cycle
VFB = 1V
●
80
87
%
Minimum Duty Cycle
VFB = 1.5V
●
0%
Frequency
●
0.9
1.25
1.5
MHz
SHDN Input High
1V
SHDN Input Low
0.35
V
SHDN Input Current
VSHDN = 5.5V
0.01
1
A
Soft-Start Time
2ms
The
● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 2.4V, VOUT = 3.3V unless otherwise specified.
ELECTRICAL CHARACTERISTICS
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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