LTC3773EG-PBF LINER [Linear Technology], LTC3773EG-PBF Datasheet - Page 32

• Manufacturer Part Number: LTC3773EG-PBF
• Description: Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking
• Manufacturer: LINER [Linear Technology]

RELATED PARTS
LTC3773
TYPICAL APPLICATION
L1:
TDK RLF7030T-2R2M5R4
L2, L3:
TDK RLF7030T-1R5M5R4
C
SANYO POSCAP 4TPE220MF
PART NUMBER
LTC3407-2
LTC3417A
LTC3703
LTC3708
LTC3727
LTC3728
LTC3729
LTC3731
LTC3778
LTC3802
LTC3827
No R
32
OUT1
0.01μF
68.1k
15k
10k
C
SENSE
OUT2
1nF
C
1nF
0.01μF
OUT3
10k
is a trademark of Linear Technology Corporation. PolyPhase is a registered trademark of Linear Technology Corporation.
1nF
8.2k
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
,:
5.9k
20k
20k
150pF
31.6k
10Ω
150pF
150pF
DESCRIPTION
Dual Synchronous, 800mA, 2.25MHz Step-Down Monolithic
DC/DC Regulator
Dual Synchronous Step-Down Monolithic 1.5A/1A
High Input Synchronous Step-Down Controller
No R
with Output Tracking
Dual Output 2-Phase Current Mode Synchronous DC/DC Step-
Down Switching Regulator Controller
Dual PolyPhase
20A to 200A, 500kHz PolyPhase Synchronous Controller
3- to 12-Phase Step-Down Synchronous Controller
Wide Operating Range, No R
Dual PolyPhase Voltage Mode Synchronous Step-Down
Switching Regulator with Output Tracking
Low I
0.01μF
POWER DOWN V
POWER DOWN V
POWER DOWN V
1000pF
●
SENSE
Q
FAX: [phone]
, Dual, 2-Phase Synchronous Step-Down Controller
10
11
12
1
2
3
4
5
6
7
8
9
10Ω
Figure 12. High Effi ciency, Small Footprint Triple Output Step-Down Converter
TM
TRACK1
V
I
SGND
I
I
V
V
TRACK2
TRACK3
SENSE2
SENSE2
TH1
TH2
TH3
, Dual, 2-Phase Synchronous Step-Down Controller
FB1
FB2
FB3
OUT1
OUT2
OUT3
®
39
–
+
10Ω
Synchronous Step-Down Switching Regulator Dual Output, Current Mode
13
38
1000pF
37
14
●
10Ω
SENSE
15
www.linear.com
36
LTC3773
+
16
2.2μF
35
Step-Down Controller
1000pF
10Ω
17
34
18
0.1μF
10Ω
10Ω
33
19
32
BOOST1
BOOST2
BOOST3
SW1
SW2
SW3
TG1
TG2
TG3
BG1
BG2
V
DR
PGOOD
31
30
29
28
27
26
25
24
23
22
21
20
10k
0.1μF
0.1μF
0.1μF
CMDSH-3
4.7μF
COMMENTS
V
V
V
Very Low Duty Factor Operation, Programmable Output Voltage
Voltage Up/Down Tracking
V
Selectable Burst Mode Operation
Expandable from 2-Phase, Uses All Surface Mount Components,
V
Single Output, 60A to 240A Output Current, 0.6V ≤ V
4.5V ≤ V
Single Channel, Separate V
Very Low Duty Factor Operation, Programmable Output Voltage
Up/Down Tracking, V
Low 80μA I
CMDSH-3
CMDSH-3
IN
IN
IN
IN
IN
: 2.5V to 5.5V, V
: 2.25V to 5.5V, V
: 4V to 36V, V
≤ 100V
up to 36V
4.5V TO 6V
+
V
CC
IN
4.7μF
≤ 32V
Q
16V
, 0.8V ≤ V
OUT
1
5
4
1
5
4
1
5
4
OUT
: 0.8V to 14V, 99% Maximum Duty Cycle,
OUT
IN
8 Si4816BDY
8 Si4816BDY
8 Si4816BDY
OUT
: 0.6V to 5V, 100% Maximum Duty Cycle
Up to 30V
: 0.8V to 5V, 100% Maximum Duty Cycle
ON
≤ 10V, 4V ≤ V
© LINEAR TECHNOLOGY CORPORATION 2006
+
Programming
6, 7
2, 3
6, 7
2, 3
6, 7
2, 3
V
4.5V TO 14V
47μF
16V
IN
2.2μH
1.5μH
1.5μH
L1
L2
L3
V
4.7μF
16V
V
4.7μF
16V
LT 0907 REV B • PRINTED IN USA
IN
IN
IN
7mΩ
≤ 36V
7mΩ
7mΩ
C
220μF
C
220μF
OUT1
OUT2
4V
4V
C
220μF
OUT3
4V
+
+
OUT
+
22μF
X5R
≤ 6V,
22μF
X5R
22μF
X5R
V
3.3V/5A
V
2.5V/5A
V
1.8V/5A
OUT1
OUT2
OUT3
3773fb