LTC1629C-PG View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1629C-PG Datasheet PDF : 28 Pages
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LTC1629/LTC1629-PG
TYPICAL APPLICATIO
13.2k
INTVCC
0.1µF
10k
17.8k
1000pF
33pF
3.3k
1000pF
1000pF
16.5k
100pF
1
28
2
RUN/SS
SENSE1+
CLKOUT 27
TG1
3
4
SENSE1–
26
SW1 25
5 EAIN
BOOST1 24
PLLFLTR
6
VIN 23
7 PLLIN
8 PHASMD
BG1
EXTVCC
22 5V
21
9
ITH
SGND
INTVCC
LTC1629-PG PGND
20
10
19
11
12
13
14
VDIFFOUT
VOS–
VOS+
SENSE2–
SENSE2+
BG2 18
BOOST2 17
SW2 16
TG2 15
PGOOD
1000pF
0.47µF
D3
1µF,25V
L1
0.003Ω
M1
10Ω
0.1µF
4.7µF
6.3V
M2
CIN
D1
UPS840
COUT
D4
100k
0.47µF
POWER
GOOD
M3
L2
D2
UPS840
M4
0.003Ω
VIN
5V TO
16V
VOUT
3.3V/30A
VIN: 5V TO 16V
VOUT: 3.3V/30A
SWITCHING FREQUENCY = 250kHz
MI, M3: IRF7811
M2, M4: IRF7809
L1, L2: 1µH SUMIDA CEPH149-1R0MC
CIN: OS CON 2-16SP270M
COUT: KEMET 3-T510 470µF
D3, D4: CENTRAL CMDSH-3TR
Figure 12. 3.3V/30A Power Supply with Active Voltage Positioning
1629 TA02
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DESCRIPTION
High Efficiency Synchronous Step-Down Switching Regulator
High Efficiency Low Noise Synchronous Step-Down Switching Regulator
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulators
Dual Synchronous Controller with Auxiliary Regulator
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulator
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulator
LTC1530
High Power Step-Down Switching Regulator Controller
LTC1628/LTC1628-PG Dual High Efficiency, PolyPhase Synchronous Step-Down Switching Regulator
LTC1702/LTC1703
LTC1708-PG
Dual High Efficiency, PolyPhase Synchronous Step-Down Switching Regulator
Dual High Efficiency, PolyPhase Synchronous Step-Down Switching Regulator
LTC1709
LTC1735
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
with 5-Bit VID
High Efficiency Synchronous Step-Down Controller
LTC1736
High Efficiency Synchronous Step-Down Controller with 5-Bit VID
LTC1929
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
Adaptive Power and Burst Mode are trademarks of Linear Technology Corporation.
COMMENTS
Burst ModeTM Operation, 16-Pin Narrow SO
Adaptive PowerTM Mode, 24-Pin SSOP
POR, Auxiliary Regulator
POR, External Feedback Divider
Auxiliary Regulator, 5V Standby
5V Standby, POR, Low-Battery,
Aux Regulator
High Efficiency 5V to 3.3V Conversion
at Up to 15A
Constant Frequency, Standby,
5V and 3.3V LDOs, PGOOD
500kHz, 25MHz GBW, Voltage Mode
Constant Frequency, 5-Bit VID,
Standby 5V, 3.3V, PGOOD
1.3V ≤ VOUT ≤ 3.5V, Current Mode Ensures
Accurate Current Sharing, 3.5V ≤ VIN ≤ 36V
Burst Mode Operation, 16-Pin Narrow SSOP,
Fault Protection, 3.5V ≤ VIN ≤ 36V
Output Fault Protection, Power Good,
24-Pin SSOP, 3.5V ≤ VIN ≤ 36V
Low Cost, 2-Phase Current Mode
28 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX: (408) 434-0507 qwww.linear-tech.com
1629f LT/TP 0100 4K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1999
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