LTC3630 Datasheet, PDF (26/26 Pages) Linear Technology – High Efficiency, 65V 500mA Synchronous

LTC3630
TYPICAL APPLICATION
4.5V to 65V Input to 3.3V Output, 1.5A Regulator
V_X
V_IN*
4.5V TO 65V
C_IN
4.7μF
V_IN
SW
LTC3630
RUN V_FB
I_SET
SS
FBO V_PRG1
V_PRG2
GND
L1
33μH
R1
200k
R2
102k
R_OSC
105k
C_ITH
1nF
R_ITH
4.32k
R1
105k
R2
475k
C_FB
10pF
SYNC/MODE INTV_CC
PGOOD
PV_IN
PV_IN
RT
BOOST
LTC3603
ITH
SW
V_FB
SW
RUN
TRACK/SS
PGND
SW
PGND
PGND
C_VCC
D1 _1μF
C_BST
0.22μF
L1
2.2μH
C_IN: MURATA GCM32DR72A225KA64L
C1: TDK CGA6P1X7R1C226M
L1: COILCRAFT MSS1048T-333
C_OUT: TDK C3225X5ROJ107M
L2: VISHAY IHLP-2525CZ-01
*WHEN V_IN > 15V, LTC3630 SWITCHES AND V_X IS REGULATED TO 15V; WHEN
V_IN < 15V, LTC3630 OPERATES IN DROPOUT AND V_X FOLLOWS V_IN
22μF
V_OUT
3.3V
1.5A
C_OUT
100μF
3630 TA06
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COMMENTS
V_IN: 4.5V to 45V, V_OUT(MIN) = 0.8V, I_Q = 12μA, I_SD = 3μA,
3 × 3 DFN-8, MSOP-8
V_IN: 4.5V to 45V, V_OUT(MIN) = 0.8V, I_Q = 12μA, I_SD = 3μA,
3 × 3 DFN-8, MSOP-8
V_IN: 4.5V to 50V, V_OUT(MIN) = 0.8V, I_Q = 12μA, I_SD = 3μA,
3 × 3 DFN-8, MSOP-8
V_IN: 2.5V to 15V, V_OUT(MIN) = 0.6V, I_Q = 1.8μA, I_SD = 1μA,
3 × 3 DFN-10, MSOP-10E
V_IN: 2.5V to 15V, V_OUT(MIN) = 0.6V, I_Q = 2.6μA, I_SD = 1μA,
4 × 3 DFN-14, MSOP-16E
V_IN: 4.2V to 40V, V_OUT(MIN) = 1.21V, I_Q = 2.5μA, I_SD < 1μA,
3 × 2 DFN-10, MSOP-10
V_IN: 4.2V to 62V, V_OUT(MIN) = 1.21V, I_Q = 2.5μA, I_SD < 1μA,
3 × 3 DFN-10, MSOP-16E
V_IN: 4.3V to 38V, V_OUT(MIN) = 1.19V, I_Q = 2.8μA, I_SD < 1μA,
3 × 3 DFN-10, MSOP-10E
V_IN: 4.3V to 55V, V_OUT(MIN) = 1.19V, I_Q = 2.8μA, I_SD < 1μA,
3 × 3 DFN-10, MSOP-10E
V_IN: 3.6V to 36V, V_OUT(MIN) = 0.8V, I_Q = 75μA, I_SD < 1μA,
3 × 3 DFN-12
V_IN: 4V to 60V, V_OUT(MIN) = 0.8V, I_Q = 50μA, I_SD = 14μA,
3 × 4 QFN-20, TSSOP-20E
26 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3630fb
LT 0612 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2012