LTC3603 Linear Dimensions Semiconductor, LTC3603 Datasheet - Page 17

• Manufacturer Part Number: LTC3603
• Description: Monolithic Synchronous Step-Down Regulator
• Manufacturer: Linear Dimensions Semiconductor

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TYPICAL APPLICATIONS
1.8V Regulator at 1MHz, Burst Mode Operation
100
95
90
85
80
75
70
65
60
0.001
Effi ciency vs Load Current,
0.01
L1: VISHAY IHLP2525CZER1ROMO1
C
C
EXT. CLK
IN
OUT
1.8MHz
PGOOD
LOAD CURRENT (A)
: TAIYO YUDEN TMK325BJ226MM-T
470pF
: MURATA GRM31CR60J476ME19
105k
C
R1
ITH
200k
C
10pF
V
V
R
FB
IN
IN
0.1
PG
69.8k
2.94k
R
= 7.2V
R
= 12V
OSC
ITH
R2
332k
3.3V, 2.5A Regulator, Synchronized to 1.8MHz, Small Size
1
3603 TA04a
SYNC/MODE
PGOOD
RT
ITH
V
RUN
TRACK/SS
PGND
FB
10
LTC3603
INTV
BOOST
PGND
PGND
PV
PV
SW
SW
SW
CC
IN
IN
1.2V Regulator at 750kHz, Burst Mode Operation
100
C
0.22μF
D1
95
90
85
80
75
70
65
60
55
50
BST
0.001
C
1μH
1μF
L1
VCC
Effi ciency vs Load Current,
0.01
LOAD CURRENT (A)
C
22μF
V
12V
IN
IN
V
3603 TA05
V
IN
C
47μF
IN
0.1
V
2.5V
2.5A
OUT
= 7.2V
OUT
= 12V
1
3603 TA04b
LTC3603
10
17
3603f