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| LTC3603_15 Datasheet, PDF (18/22 Pages) Linear Technology – 2.5A, 15V Monolithic Synchronous Step-Down Regulator | |||
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LTC3603
Typical Applications
Efficiency vs Load Current,
1.8V Regulator at 1MHz, Burst Mode Operation
100
95
VIN = 7.2V
90
85
VIN = 12V
80
75
70
65
60
0.001
0.01
0.1
1
LOAD CURRENT (A)
10
3603 TA04a
Efficiency vs Load Current,
1.2V Regulator at 750kHz, Burst Mode Operation
100
95
90
85
80
75
70
65
60
55
50
0.001
VIN = 7.2V
VIN = 12V
0.01
0.1
1
LOAD CURRENT (A)
10
3603 TA04b
3.3V, 2.5A Regulator, Synchronized to 1.8MHz, Small Size
1.8MHz
EXT. CLK
RPG
200k
PGOOD
ROSC
69.8k
CITH
470pF
RITH
2.94k
R1
105k
CFB R2
10pF 332k
SYNC/MODE
PGOOD
RT
INTVCC
PVIN
PVIN
BOOST
ITH
LTC3603
SW
VFB
SW
RUN
SW
TRACK/SS
PGND
PGND
PGND
CVCC
1µF
VIN
12V
CIN
22µF
D1
CBST
0.22µF
L1
1µH
VOUT
2.5V
2.5A
COUT
47µF
L1: VISHAY IHLP2525CZER1ROMO1
CIN: TAIYO YUDEN TMK325BJ226MM-T
COUT: MURATA GRM31CR60J476ME19
3603 TA05
3603fc
18
For more information www.linear.com/LTC3603
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