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)： 2/32頁(yè)
文件大?。?/td> 366K
代理商： LTC1628
2
LTC1628/LTC1628-PG
ORDER PART
NUMBER
LTC1628CG
LTC1628IG
LTC1628CG-PG
LTC1628IG-PG
(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
FREQSET, STBYMD, FCB,
FLTCPL 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
LTC1628C/LTC1628C-PG........................0
°
C to 85
°
C
LTC1628I/LTC1628I-PG ..................... –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-PG
Consult factory for Military grade parts.
The
G
denotes the specifications which apply over the full operating
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
> 2V
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
Standby
Shutdown
Forced Continuous Threshold
Forced Continuous Pin Current
Burst Inhibit (Constant Frequency)
Threshold
Undervoltage Lockout
Feedback Overvoltage Lockout
Sense Pins Total Source Current
Master Shutdown Threshold
mmho
MHz
350
125
20
0.800
–0.18
4.3
μ
A
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
STBYMD
MS
V
IN
Ramping Down
Measured at V
OSENSE1, 2
(Each Channel); V
SENSE1
–
, 2
–
= V
SENSE1
+
, 2
+
= 0V
V
STBYMD
Ramping Down
G
3.5
0.86
–60
0.6
4
V
V
G
0.84
–85
0.4
0.88
μ
A
V
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
FREQSET
STBYMD
FCB
I
TH1
SGND
3.3V
OUT
I
TH2
V
OSENSE2
SENSE2
–
SENSE2
+
FLTCPL
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
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