參數(shù)資料
型號(hào): LTC1705EGN
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Dual 550kHz Synchronous Switching Regulator Controller with 5-Bit VID and 150mA LDO
中文描述: 5 A DUAL SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO28
封裝: 0.150 INCH, PLASTIC, SSOP-28
文件頁(yè)數(shù): 2/28頁(yè)
文件大小: 326K
代理商: LTC1705EGN
LTC1705
2
Supply Voltage
V
CC
, PV
CC
, V
INCLK
.................................................. 6V
BOOSTC, BOOSTIO ............................................. 12V
BOOSTC – SWC, BOOSTIO – SWIO....................... 6V
Input Voltage
SWC, SWIO ................................................–1V to 6V
SENSEC, FBC, FBIO, VIDn .......–0.3V to (V
CC
+ 0.3V)
PGOOD, RUN/SS,
I
MAXC
, I
MAXIO..................................
–0.3V to (V
CC
+ 0.3V)
Peak Output Current <10
μ
s
TGC, BGC .............................................................. 5A
TGIO, BGIO....................................................... 1.25A
Operating Temperature Range (Note 2).. –40
°
C to 85
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
ORDER PART
NUMBER
T
JMAX
= 125
°
C,
θ
JA
= 80
°
C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTC1705EGN
ABSOLUTEW
(Note 1)
W
W
U
PACKAGE/ORDER IU
U
W
ELECTRICAL CHARACTERISTICS
The
G
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
°
C.
V
CC
= PV
CC
= BOOST = 5V, V
INCLK
= 3.3V unless otherwise specified. (Note 3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
I
MAXIO
PV
CC
BOOSTC
BGC
TGC
SWC
PGND
I
MAXC
RUN/SS
COMPC
FBC
GND
SENSEC
VID0
BGIO
BOOSTIO
TGIO
SWIO
V
INCLK
V
OUTCLK
PGOOD
COMPIO
FBIO
V
CC
VID4
VID3
VID2
VID1
SYMBOL PARAMETER
V
CC
V
CC
Supply Voltage
PV
CC
PV
CC
Supply Voltage
BV
CC
BOOST Pin Voltage
V
INCLK
V
INCLK
Supply Voltage
I
VCC
V
CC
Supply Current
CONDITIONS
MIN
3.15
3.15
3.15
3
TYP
5
5
5
3.3
4.5
40
2
1
2
1
1
4
0.5
–3
MAX
5.5
5.5
5.5
5.5
8
100
6
50
6
50
1.5
30
UNITS
G
V
V
V
V
(Note 4)
V
BOOST
– V
SW
(Note 4)
G
G
G
Test Circuit 1
RUN/SS = 0V
V
SENSEC
= V
FBIO
= 0V, No Load at Drivers (Note 5)
G
RUN/SS = 0V (Note 6)
V
SENSEC
= V
FBIO
= 0V, No Load at Drivers (Note 5)
G
RUN/SS = 0V (Note 6)
I
VOUTCLK
= 0mA
RUN/SS = 0V
V
RUN/SS
(Rising Edge)
RUN/SS = 0V
G
G
mA
μ
A
mA
μ
A
mA
μ
A
mA
μ
A
I
PVCC
PV
CC
Supply Current
G
I
BOOST
I
BOOSTC
+ I
BOOSTIO
G
I
VINCLK
V
INCLK
Supply Current
G
G
V
SHDN
I
SS
Core, I/O Supply Control Loops
V
SENSEC
Output Voltage Accuracy
V
FBC
Core Feedback Voltage
V
FBIO
I/O Feedback Voltage
dV
FB
Feedback Voltage Line Regulation
dV
OUT
Output Voltage Load Regulation
I
FBIO
I/O Feedback Input Current
RUN/SS Shutdown Threshold
RUN/SS Source Current
G
0.2
V
μ
A
Programmed from 0.9V to 2V
(Note 10)
G
–1.25
1.25
%
V
V
0.800
0.800
±
0.01
–0.1
G
0.784
0.816
±
0.1
V
CC
= 3.3V to 5.5V
(Note 7)
G
%/V
G
–0.2
%
μ
A
G
±
1
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