參數(shù)資料
型號(hào)： LTC1628
廠商： Linear Technology Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C
中文描述： 射頻放大器
文件頁(yè)數(shù)： 32/32頁(yè)
文件大?。?/td> 366K
代理商： LTC1628
32
LTC1628/LTC1628-PG
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
G
FAX: (408) 434-0507
G
www.linear-tech.com
LINEAR TECHNOLOGY CORPORATION 1998
1628fa LT/TP 0300 2K REV A PRINTED IN USA
Figure 13. LTC1628 5V/4A, 3.3V/4A Regulator
RELATED PARTS
PART NUMBER
LTC1159
LTC1438/LTC1439
LTC1438-ADJ
LTC1538-AUX
LTC1539
LTC1530
LTC1625/LTC1775
LTC1629
DESCRIPTION
High Efficiency Synchronous Step-Down Switching Regulator
Dual High Efficiency Low Noise Synchronous Step-Down Switching Regulators POR, Auxiliary Regulator
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 Synchronous DC/DC Controller in SO-8
No R
SENSE
20A to 200A PolyPhase
TM
Synchronous Controller
COMMENTS
100% DC, Logic Level MOSFETs, V
IN
< 40V
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
97% Efficiency, No Sense Resistor, 16-Pin SSOP
Expandable from 2-Phase to 12-Phase, Uses All
Surface Mount Components, No Heat Sink
550kHz, No Sense Resistor
Mobile Pentium
III Processors, 550kHz,
V
IN
≤
7V
1.3V
≤
V
OUT
≤
3.5V, Current Mode Ensures
Accurate Current Sharing, 3.5V
≤
V
IN
≤
36V
Output Fault Protection, 16-Pin SSOP
Output Fault Protection, 24-Pin SSOP,
3.5V
≤
V
IN
≤
36V
Up to 42A, Uses All Surface Mount Components,
No Heat Sink, 3.5V
≤
V
IN
≤
36V
TM
Current Mode Synchronous Step-Down Controller
LTC1702
LTC1703
No R
SENSE
2-Phase Dual Synchronous Step-Down Controller
No R
SENSE
2-Phase Dual Synchronous Step-Down Controller
with 5-Bit Mobile VID Control
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
with 5-Bit VID
High Efficiency Synchronous Step-Down Switching Regulator
High Efficiency Synchronous Controller with 5-Bit Mobile VID Control
LT1709
LTC1735
LTC1736
LTC1929
2-Phase Synchronous Controller
Adaptive Power, No R
SENSE
and PolyPhase are trademarks of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation.
0.1
μ
F
4.7
μ
F
+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
22
μ
F
50V
D1
MBRM
140T3
D2
MBRM
140T3
M1A
M1B
M2A
M2B
1
μ
F
10V
0.1
μ
F
10
0.015
0.015
INTV
CC
3.3V
0.1
μ
F
20k
1%
105k
1%
33pF
15k
33pF
15k
220pF
220pF
1000pF
1000pF
0.1
μ
F
20k
1%
63.4k
1%
RUN/SS1
SENSE1
+
SENSE1
–
V
OSENSE1
FREQSET
STBYMD
FCB
I
TH1
SGND
3.3V
OUT
I
TH2
V
OSENSE2
SENSE2
–
SENSE2
+
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
RUN/SS2
LTC1628
L1
8
μ
H
L2
8
μ
H
47
μ
F
6.3V
56
μ
F, 4V
GND
V
3.3V
3A; 4A PEAK
V
OUT1
5V
3A; 4A PEAK
V
5.2V TO
28V
1628 F13
+
+
V
IN
: 5.2V TO 28V
V
OUT
: 5V, 4A/3.3V, 4A
SWITCHING FREQUENCY = 300kHz
MI, M2: FDS8936A
L1, L2: 8
μ
H SUMIDA CEP1238R0MC
OUTPUT CAPACITORS: PANASONIC SP SERIES
27pF
27pF
0.1
μ
F
CMDSH-3TR
CMDSH-3TR
0.01
μ
F
FLTCPL
PGOOD
V
(<7V)
FLTCPL*
(PGOOD)
*PGOOD ON THE LTC1628-PG
U
TYPICAL APPLICATIO
相關(guān)PDF資料
PDF描述
LTC1629I-PG RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LTC1629-PG RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LTC1629CG-PG RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
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