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Part Name
Description
LT1612ES8 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1612ES8
Synchronous, Step-Down 800kHz PWM DC/DC Converter
Linear Technology
LT1612ES8 Datasheet PDF : 12 Pages
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LT1612
TYPICAL APPLICATIONS
V
IN
2.7V TO 4.2V
10
µ
F
CERAMIC
Single Li-Ion to 2V Converter
0.1
µ
F
V
IN
BOOST
SHDN
SW
L1
10
µ
H
LT1612
20pF
MODE
FB
V
C
GND
1M
30.1k
453k
1%
1%
680pF
C1: TAIYO-YUDEN LMK325BJ106MN
C2: TAIYO-YUDEN LMK325BJ226MN
L1: SUMIDA CD43-100
V
OUT
2V
500mA
22
µ
F
CERAMIC
1612 TA02
Transient Response
Li-Ion to 2V Converter Efficiency
85
80
V
IN
= 2.8V
75
70
V
IN
= 4.2V
65
V
IN
= 3.5V
60
55
50
1
10
100
LOAD CURRENT (mA)
1000
1612 TA04
Burst Mode Operation
V
OUT
50mV/DIV
V
OUT
20mV/DIV
I
L
200mA/DIV
LOAD STEP
125mA TO 300mA
V
IN
= 4V
V
OUT
= 2V
MODE = HIGH
100
µ
s/DIV
1612 TA03
I
L
100mA/DIV
MODE = LOW
5
µ
s/DIV
Inrush Current at Start-Up
V
OUT
2V/DIV
INRUSH
CURRENT
200mA/DIV
V
SHDN
5V/DIV
0.2ms/DIV
1612 TA06
8
1612 TA05
sn1612 1612fs
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