LTC1629 LINER [Linear Technology], LTC1629 Datasheet - Page 28

• Manufacturer Part Number: LTC1629
• Description: PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulators
• Manufacturer: LINER [Linear Technology]

LTC1629/LTC1629-PG
TYPICAL APPLICATIO
RELATED PARTS
PART NUMBER
LTC1435/LTC1435A
LTC1436A-PLL
LTC1438/LTC1439
LTC1438-ADJ
LTC1538-AUX
LTC1539
LTC1530
LTC1628/LTC1628-PG Dual High Efficiency, PolyPhase Synchronous Step-Down Switching Regulator
LTC1702/LTC1703
LTC1708-PG
LTC1709
LTC1735
LTC1736
LTC1929
Adaptive Power and Burst Mode are trademarks of Linear Technology Corporation.
28
V
V
SWITCHING FREQUENCY = 250kHz
IN
OUT
13.2k
: 5V TO 16V
: 3.3V/30A
3.3k
0.1 F
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
10k
33pF
100pF
INTV
16.5k
CC
17.8k
1000pF
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
High Power Step-Down Switching Regulator Controller
Dual High Efficiency, PolyPhase Synchronous Step-Down Switching Regulator
Dual High Efficiency, PolyPhase Synchronous Step-Down Switching Regulator
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
with 5-Bit VID
High Efficiency Synchronous Step-Down Controller
High Efficiency Synchronous Step-Down Controller with 5-Bit VID
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
1000pF
1000pF
1000pF
MI, M3: IRF7811
M2, M4: IRF7809
L1, L2: 1 H SUMIDA CEPH149-1R0MC
Figure 12. 3.3V/30A Power Supply with Active Voltage Positioning
10
11
12
13
14
1
2
3
4
5
6
7
8
9
RUN/SS
SENSE1
SENSE1
EAIN
PLLFLTR
PLLIN
PHASMD
I
SGND
V
V
V
SENSE2
SENSE2
TH
U
DIFFOUT
OS
OS
–
+
LTC1629-PG
+
–
–
+
CLKOUT
BOOST1
BOOST2
EXTV
PGOOD
INTV
PGND
SW1
SW2
BG1
BG2
TG1
TG2
V
CC
CC
IN
28
27
26
25
24
23
22
21
20
19
18
17
16
15
5V
C
C
D3, D4: CENTRAL CMDSH-3TR
IN
OUT
D4
1 F,25V
0.47 F
: OS CON 2-16SP270M
0.47 F
: KEMET 3-T510 470 F
100k
D3
POWER
GOOD
4.7 F
6.3V
0.1 F
10
M1
M3
COMMENTS
Burst Mode
Adaptive Power
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 V
Accurate Current Sharing, 3.5V V
Burst Mode Operation, 16-Pin Narrow SSOP,
Fault Protection, 3.5V V
Output Fault Protection, Power Good,
24-Pin SSOP, 3.5V V
Low Cost, 2-Phase Current Mode
L1
L2
OUT
C
IN
TM
LINEAR TECHNOLOGY CORPORATION 1999
Operation, 16-Pin Narrow SO
3.5V, Current Mode Ensures
M2
M4
1629f LT/TP 0100 4K • PRINTED IN USA
TM
Mode, 24-Pin SSOP
0.003
0.003
IN
D1
UPS840
D2
UPS840
IN
36V
C
36V
OUT
IN
36V
V
5V TO
16V
V
3.3V/30A
IN
OUT
1629 TA02