參數(shù)資料
型號： LTC1628CG
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 3 A SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.209 INCH, PLASTIC, SSOP-28
文件頁數(shù)： 2/32頁
文件大小： 375K
代理商： LTC1628CG
2
LTC1628-SYNC
ORDER PART
NUMBER
LTC1628CG-SYNC
LTC1628IG-SYNC
(Note 1)
Input Supply Voltage (V
IN
).........................36V to –0.3V
Top Side Driver Voltages
(BOOST1, BOOST2)...................................42V to –0.3V
Switch Voltage (SW1, SW2).........................36V to –5V
INTV
CC,
EXTV
CC
, RUN/SS1, RUN/SS2, (BOOST1-SW1),
(BOOST2-SW2), PGOOD .............................7V to –0.3V
SENSE1
+
, SENSE2
+
, SENSE1
–
,
SENSE2
–
Voltages........................(1.1)INTV
CC
to –0.3V
PLLIN, PLLFLTR, FCB, Voltage............ INTV
CC
to –0.3V
I
TH1,
I
TH2
, V
OSENSE1
, V
OSENSE2
Voltages ...2.7V to –0.3V
Peak Output Current <10
μ
s (TG1, TG2, BG1, BG2) ... 3A
INTV
CC
Peak Output Current................................ 50mA
Operating Temperature Range
LTC1628CG-SYNC...................................0
°
C to 85
°
C
LTC1628IG-SYNC............................... –40
°
C to 85
°
C
Junction Temperature (Note 2).............................125
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
T
JMAX
= 125
°
C,
θ
JA
= 95
°
C/W
*PGOOD ON THE LTC1628-SYNC
Consult factory for Military grade parts.
The
G
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 15V, V
RUN/SS1, 2
= 5V unless otherwise noted.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
G PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RUN/SS1
SENSE1
+
SENSE1
–
V
OSENSE1
PLLFLTR
PLLIN
FCB
I
TH1
SGND
3.3V
OUT
I
TH2
V
OSENSE2
SENSE2
–
SENSE2
+
PGOOD
TG1
SW1
BOOST1
V
IN
BG1
EXTV
CC
INTV
CC
PGND
BG2
BOOST2
SW2
TG2
RUN/SS2
ABSOLUTEW
W
W
U
PACKAGE/ORDER U
U
W
ELECTRICAL CHARACTERISTICS
SYMBOL
Main Control Loops
V
OSENSE1, 2
I
VOSENSE1, 2
V
REFLNREG
V
LOADREG
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Regulated Feedback Voltage
Feedback Current
Reference Voltage Line Regulation
Output Voltage Load Regulation
(Note 3); I
TH1, 2
Voltage = 1.2V
(Note 3)
V
IN
= 3.6V to 30V (Note 3)
(Note 3)
Measured in Servo Loop;
I
TH
Voltage = 1.2V to 0.7V
Measured in Servo Loop;
I
TH
Voltage = 1.2V to 2.0V
I
TH1, 2
= 1.2V; Sink/Source 5uA; (Note 3)
I
TH1, 2
= 1.2V; (Note 3)
(Note 4)
V
IN
= 15V; EXTV
CC
Tied to V
OUT1
; V
OUT1
= 5V
V
RUN/SS1, 2
= 0V, V
STBYMD
= Open;
G
0.792
0.800
–5
0.002
0.808
–50
0.02
V
nA
%/V
G
G
0.1
–0.1
1.3
3
0.5
–0.5
%
%
g
m1, 2
g
mGBW1, 2
I
Q
Transconductance Amplifier g
m
Transconductance Amplifier GBW
Input DC Supply Current
Normal Mode
Shutdown
Forced Continuous Threshold
Forced Continuous Pin Current
Burst Inhibit (Constant Frequency)
Threshold
Undervoltage Lockout
Feedback Overvoltage Lockout
Sense Pins Total Source Current
mmho
MHz
350
20
0.800
–0.18
4.3
μ
A
μ
A
V
μ
A
V
35
0.84
–0.1
4.8
V
FCB
I
FCB
V
BINHIBIT
G
0.76
–0.30
V
FCB
= 0.85V
Measured at FCB pin
UVLO
V
OVL
I
SENSE
V
IN
Ramping Down
Measured at V
OSENSE1, 2
(Each Channel); V
SENSE1
–
, 2
–
= V
SENSE1
+
, 2
+
= 0V
G
3.5
0.86
–60
4
V
V
G
0.84
–85
0.88
μ
A
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