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| LTC3872-1_15 Datasheet, PDF (16/20 Pages) Linear Technology – No RSENSE Current Mode Boost DC/DC Controller | |||
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LTC3872-1
typical applications
High Efficiency 3.3V Input, 12V Output Boost Converter
2.2nF 23.2k
100pF
11.8k
1%
0.1µF
4.7M
ITH RUN/SS VIN
IPRG
LTC3872-1
GND
SW
VFB
NGATE
107k
1%
L1
2.2µH
M1 PDS1040
COUT1
22µF
Ã2
COUT1: TAIYO YUDEN TMK325B7226MM
L1: COILTRONICS DR125-2R2
M1: VISHAY Si4114DY
VIN
CIN
3.3V
10µF
COUT2
120µF
VOUT
12V
1.5A
38721 F09
VOUT
12V
AC-COUPLED
IL
5A/DIV
ILOAD
1A/DIV
STEP FROM
500mA TO 1.5A
100µs/DIV
38721 F10
16
For more information www.linear.com/LTC3872-1
38721f
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