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LTC3565 датащи(PDF) 18 Page - Linear Technology

номер детали LTC3565
подробное описание детали  1.25A, 4MHz, Synchronous Step-Down DC/DC Converter
PDF  22 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC3565 датащи(HTML) 18 Page - Linear Technology

Back Button LTC3565 Datasheet HTML 14Page - Linear Technology LTC3565 Datasheet HTML 15Page - Linear Technology LTC3565 Datasheet HTML 16Page - Linear Technology LTC3565 Datasheet HTML 17Page - Linear Technology LTC3565 Datasheet HTML 18Page - Linear Technology LTC3565 Datasheet HTML 19Page - Linear Technology LTC3565 Datasheet HTML 20Page - Linear Technology LTC3565 Datasheet HTML 21Page - Linear Technology LTC3565 Datasheet HTML 22Page - Linear Technology  
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background image
LTC3565
18
3565fb
SVIN
LTC3565
PGOOD
PGOOD
SW
PVIN
SYNC/MODE
VFB
ITH
SHDN/RT
L1
2.2μH
VIN
2.5V TO
5.5V
VOUT
1.8V/1.5V/1.2V
AT 1.25A
R5
100k
R4
191k
R1A
147k
R3
12.1k
RS1
1M
BM
RS2
1M
3565 TA02a
C3
680pF
C4 22pF
R2 294k
C2
22μF
R1B
196k
R1C
294k
PS
FC
C1
22μF
GND
NOTE: IN DROPOUT, THE OUTPUT TRACKS THE INPUT VOLTAGE
C1, C2: TAIYO YUDEN JMK325BJ226MM
L1: TOKO A914BYW-2R2M (D52LC SERIES)
1.8V
1.5V
1.2V
General Purpose Buck Regulator Using Ceramic Capacitors
Efficiency vs Output Current
TYPICAL APPLICATION
OUTPUT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000
10000
3565 TA02b
Burst Mode
OPERATION
VIN = 3.6V
VOUT = 1.2V
fO = 1MHz
FORCED CONTINUOUS
PULSE SKIP
VIN = 3.6V
VOUT = 1.2V
ILOAD = 100mA TO 1.25A
Burst Mode OPERATION
VOUT
100mV/DIV
AC COUPLED
IL
1A/DIV
3565 TA02c
40μs/DIV
ILOAD
1A/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 100mA TO 1.25A
PULSE SKIPPING MODE
VOUT
100mV/DIV
AC COUPLED
IL
1A/DIV
3565 TA02d
40μs/DIV
ILOAD
1A/DIV



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