參數(shù)資料
型號(hào): LTC3772ETS8#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 1 MM HEIGHT, PLASTIC, MO-193, SOT-23, 8 PIN
文件頁(yè)數(shù): 12/20頁(yè)
文件大?。?/td> 248K
代理商: LTC3772ETS8#PBF
2
LTC3772
3772f
ORDER PART
NUMBER
(Note 1)
Input Supply Voltage (VIN)........................ – 0.3V to 10V
IPRG, PGATE Voltages ................ – 0.3V to (VIN + 0.3V)
VFB, ITH/RUN Voltages ............................. –0.3V to 2.4V
SW Voltage ........... – 2V to (VIN + 1V) or 10V Maximum
PGATE Peak Output Current (<10s) ........................ 1A
LTC3772EDDB
TJMAX = 125°C, θJA = 76°C/W
EXPOSED PAD (PIN 9) IS GND
MUST BE SOLDERED TO PCB
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DDB8 PART MARKING
LBNR
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Note 3) ............................ 125°C
Storage Temperature Range ................. – 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
TSOT-23 ........................................................... 300°C
ORDER PART
NUMBER
LTC3772ETS8
TJMAX = 125°C, θJA = 230°C/W
TS8 PART MARKING
LTBNQ
IPRG 1
ITH/RUN 2
VFB 3
GND 4
8 NC
7 SW
6 VIN
5 PGATE
TOP VIEW
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
TOP VIEW
9
DDB PACKAGE
8-LEAD (3mm × 2mm) PLASTIC DFN
5
6
7
8
4
3
2
1
GND
VFB
ITH/RUN
IPRG
PGATE
VIN
SW
NC
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
2.75
9.8
V
Input DC Supply Current
(Note 4)
Normal Operation
VITH/RUN = 1.3V
250
375
A
SLEEP Mode
40
60
A
Shutdown
VITH/RUN = 0V
8
20
A
UVLO
VIN < UVLO Threshold – 100mV
1
5
A
Undervoltage Lockout (UVLO) Threshold
VIN Rising
2.0
2.75
V
VIN Falling
1.85
2.60
V
Start-Up Current Source
VITH/RUN = 0V
0.7
1.2
1.7
A
Shutdown Threshold (at ITH/RUN)
VITH/RUN Rising
0.3
0.6
0.95
V
Regulated Feedback Voltage
0°C ≤ TA ≤ 85°C (Note 5)
0.788
0.800
0.812
V
–40°C ≤ TA ≤ 85°C (Note 5)
0.780
0.800
0.812
V
Feedback Voltage Line Regulation
2.75V ≤ VIN ≤ 9.8V (Note 5)
0.08
0.2
mV/V
Feedback Voltage Load Regulation
ITH/RUN = 1.6V (Note 5)
0.2
%
ITH/RUN = 1V (Note 5)
–0.2
%
The
indicates specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 4.2V unless otherwise noted. (Note 2)
ELECTRICAL CHARACTERISTICS
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