参数资料
型号: LTC1735IS#PBF
厂商: Linear Technology
文件页数: 2/32页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 16-SOIC
标准包装: 50
PWM 型: 电流模式
输出数: 1
频率 - 最大: 335kHz
占空比: 99.4%
电源电压: 4 V ~ 30 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
包装: 管件
产品目录页面: 1333 (CN2011-ZH PDF)
LTC1735
ABSOLUTE
AXI U RATI GS
(Note 1)
Input Supply Voltage (V IN ).........................36V to – 0.3V
Topside Driver Supply Voltage (BOOST)....42V to – 0.3V
Switch Voltage (SW) ....................................36V to – 5V
EXTV CC Voltage ...........................................7V to – 0.3V
Boosted Driver Voltage (BOOST – SW) .......7V to – 0.3V
SENSE + , SENSE – Voltages .......... 1.1 (INTV CC ) to – 0.3V
FCB Voltage ............................(INTV CC + 0.3V) to – 0.3V
I TH , V OSENSE Voltages ...............................2.7V to – 0.3V
RUN/SS, PGOOD (LTC1735F Only)
Voltages .......................................................7V to – 0.3V
PACKAGE/ORDER I FOR ATIO
Peak Driver Output Current <10 μ s (TG, BG) .............. 3A
INTV CC Output Current ......................................... 50mA
Operating Ambient Temperature Range
LTC1735C ............................................... 0 ° C to 85 ° C
LTC1735I/LTC1735E (Note 8) ............ – 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
C OSC 1
RUN/SS 2
I TH 3
FCB 4
SGND 5
V OSENSE 6
SENSE – 7
SENSE + 8
TOP VIEW
16 TG
15 BOOST
14 SW
13 V IN
12 INTV CC
11 BG
10 PGND
9
EXTV CC
ORDER PART
NUMBER
LTC1735CGN
LTC1735CS
LTC1735IGN
LTC1735IS
LTC1735EGN
GN PART MARKING
NC
C OSC
RUN/SS
I TH
FCB
SGND
V OSENSE
PGOOD
SENSE –
1
2
3
4
5
6
7
8
9
TOP VIEW
20 NC
19 TG
18 BOOST
17 SW
16 V IN
15 INTV CC
14 BG
13 PGND
12 EXTV CC
ORDER PART
NUMBER
LTC1735CF
LTC1735IF
GN PACKAGE
16-LEAD NARROW
S PACKAGE
16-LEAD PLASTIC SO
1735
SENSE + 10
11 NC
PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 130 ° C/W (GN)
T JMAX = 125 ° C, θ JA = 110 ° C/W (S)
1735I
1735E
F PACKAGE
20-LEAD PLASTIC TSSOP
T JMAX = 125 ° C, θ JA = 110 ° C/W
Consult LTC marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 15V, V RUN/SS = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
I VOSENSE
Feedback Current
(Note 3)
–4
– 25
nA
V OSENSE
? V LINEREG
Feedback Voltage
Reference Voltage Line Regulation
(Note 3)
V IN = 3.6V to 30V (Note 3)
q
0.792
0.8
0.001
0.808
0.02
V
%/V
? V LOADREG
Output Voltage Load Regulation
(Note 3)
Measured in Servo Loop; V ITH = 0.7V
Measured in Servo Loop; V ITH = 2V
q
q
0.1
– 0.1
0.3
– 0.3
%
%
DF Max
g m
Maximum Duty Factor
Transconductance Amplifier g m
In Dropout
98
99.4
1.3
%
mmho
V FCB
I FCB
Forced Continuous Threshold
Forced Continuous Current
V FCB = 0.85V
q
0.76
0.8
– 0.17
0.84
– 0.3
V
μ A
1735fc
2
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