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参数资料
| 型号： | LTC3549EDCB#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.6 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 2 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229, DFN-6 |
| 文件页数： | 9/16页 |
| 文件大小： | 352K |
| 代理商： | LTC3549EDCB#TR |
LTC3549
2
3549f
Input Supply Voltage................................... –0.3V to 6V
RUN, VFB, MODE Voltages .............–0.3V to (VIN + 0.3V)
SW Voltage < 100ns Pulse.............–0.3V to (VIN + 0.3V)
Operating Temperature Range (Note 2) ... –40°C to 85°C
Junction Temperature (Note 3) ........................... 125°C
Storage Temperature Range.................. –65°C to 125°C
(Note 1)
The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C, VIN = 2.2V.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Voltage Range
●
1.6
5.5
V
VRUN
RUN Threshold
●
0.3
0.7
1.1
V
IRUN
RUN Leakage Current
VRUN = 0 or 2.2V
0.01
1
A
VMODE
MODE Threshold
●
0.3
0.65
1.1
V
IMODE
MODE Leakage Current
VMODE = 0 or 2.2V
0.01
1
A
VFB
Regulated Feedback Voltage
TA = 25°C (Note 4)
0°C ≤ TA ≤ 85°C (Note 4)
–40°C ≤ TA ≤ 85°C (Note 4)
●
0.599
0.597
0.596
0.611
0.623
0.626
V
IVFB
Feedback Current
●
±30
nA
ΔVOVL
ΔVFBOVL Overvoltage Lockout
ΔVOVL = ΔVFBOVL – VFB (Note 6)
40
60
80
mV
ΔVFB
Reference Voltage Line Regulation
1.6V < VIN < 5.5V (Note 4)
●
0.04
0.4
%/V
ΔVOUT
Output Voltage Line Regulation
IOUT = 100mA, 1.6V < VIN < 5.5V (Note 7)
0.04
0.4
%/V
IPK
Peak Inductor Current
VFB = 0.5V or VOUT = 90%
0.3
0.45
0.6
A
VLOADREG
Output Voltage Load Regulation
Pulse Skip Mode, VOUT = 1.2V,
50mA < ILOAD < 250mA (Note 7)
0.5
%
ELECTRICAL CHARACTERISTICS
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
TOP VIEW
V
FB
RUN
MODE
V
IN
GND
SW
DCB PACKAGE
6-LEAD (2mm
× 3mm) PLASTIC DFN
4
5
7
6
3
2
1
TJMAX = 125°C, θJA = 64°C/W
EXPOSED PAD (PIN 7) IS GND
MUST BE SOLDERED TO PCB
ORDER PART NUMBER
DCB PART MARKING
LTC3549EDCB
LBZR
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 specied with wider operating temperature ranges.
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