LTC1628IG-SYNC#TRPBF Linear Technology, LTC1628IG-SYNC#TRPBF Datasheet - Page 30

• Manufacturer Part Number: LTC1628IG-SYNC#TRPBF
• Description: IC SW REG STEP-DOWN 28-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1628IG-SYNC#TRPBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: Adj to 0.8V
• Current - Output: 3A
• Frequency - Switching: 140kHz ~ 310kHz
• Voltage - Input: 3.5 ~ 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

LTC1628-SYNC
TYPICAL APPLICATIO S
30
V
V
IN
OUT
0.1µF
: 5.2V TO 28V
27pF
27pF
33pF
33pF
20k
10k
15k
15k
20k
1%
1%
: 5V, 4A/3.3V, 4A
0.01µF
0.1µF
220pF
220pF
63.4k
105k
1%
1%
1000pF
Figure 13. LTC1628-SYNC 5V/4A, 3.3V/4A Regulator with External Frequency Synchronization
1000pF
1000pF
3.3V
f
SWITCHING FREQUENCY = 300kHz
MI, M2: FDS8936A
SYNC
10
11
12
13
14
1
2
3
4
5
6
7
8
9
RUN/SS1
SENSE1
SENSE1
V
PLLFLTR
PLLIN
FCB
I
SGND
3.3V
I
V
SENSE2
SENSE2
U
TH1
TH2
OSENSE1
OSENSE2
LTC1628-SYNC
OUT
+
–
–
+
RUN/SS2
BOOST1
BOOST2
EXTV
PGOOD
INTV
PGND
SW1
SW2
TG1
BG1
BG2
TG2
V
CC
CC
IN
L1, L2: 8µH SUMIDA CEP1238R0MC
OUTPUT CAPACITORS: PANASONIC SP SERIES
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1µF
10V
CMDSH-3TR
0.1µF
V
(<7V)
PGOOD
PULL-UP
CMDSH-3TR
0.1µF
4.7µF
0.1µF
10Ω
M1A
M2A
M1B
M2B
8µH
22µF
8µH
50V
L1
L2
0.015Ω
0.015Ω
56µF, 4V
1628 F13
47µF
6.3V
D1
MBRM
140T3
D2
MBRM
140T3
V
5V
3A; 4A PEAK
GND
V
5.2V TO
28V
V
3.3V
3A; 4A PEAK
OUT1
IN
OUT2
1628syncfa