参数资料
型号: LTC1625IS#PBF
厂商: Linear Technology
文件页数: 2/24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: 165kHz
占空比: 99%
电源电压: 3.9 V ~ 36 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)
LTC1625
ABSOLUTE M AXI M U M RATINGS
PACKAGE/ORDER I FOR ATIO
(Note 1)
Input Supply Voltage (V IN , TK) ................. 36V to – 0.3V
Boosted Supply Voltage (BOOST) ............. 42V to – 0.3V
Boosted Driver Voltage (BOOST – SW) ...... 7V to – 0.3V
Switch Voltage (SW).....................................36V to – 5V
EXTV CC Voltage ...........................................7V to – 0.3V
I TH Voltage ................................................2.7V to – 0.3V
FCB, RUN/SS, SYNC Voltages .....................7V to – 0.3V
V OSENSE , V PROG Voltages ........(INTV CC + 0.3V) to – 0.3V
Peak Driver Output Current < 10 μ s (TG, BG) ............ 2A
EXTV CC 1
SYNC 2
RUN/SS 3
FCB 4
I TH 5
SGND 6
V OSENSE 7
V PROG 8
TOP VIEW
16 V IN
15 TK
14 SW
13 TG
12 BOOST
11 INTV CC
10 BG
9 PGND
ORDER PART
NUMBER
LTC1625CGN
LTC1625CS
LTC1625IGN
LTC1625IS
INTV CC Output Current ........................................ 50mA
Operating Ambient Temperature Range
LTC1625C............................................... 0 ° C to 70 ° C
LTC1625I (Note 5) .............................. – 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
GN PACKAGE S PACKAGE
16-LEAD PLASTIC SSOP 16-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 130 ° C/W (GN)
T JMAX = 125 ° C, θ JA = 110 ° C/W (S)
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
T A = 25 ° C, V IN = 15V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
I IN V OSENSE
Feedback Current
V PROG Pin Open, I TH = 1.19V (Note 3)
10
50
nA
V OUT
Regulated Output Voltage
I TH = 1.19V (Note 3)
V LINEREG
1.19V (Adjustable) Selected
3.3V Selected
5V Selected
Reference Voltage Line Regulation
V PROG Pin Open
V PROG = 0V
V PROG = INTV CC
V IN = 3.6V to 20V, I TH = 1.19V (Note 3),
q
q
q
1.178
3.220
4.900
1.190
3.300
5.000
0.001
1.202
3.380
5.100
0.01
V
V
V
%/V
V PROG Pin Open
V LOADREG
Output Voltage Load Regulation
I TH = 2V (Note 3)
I TH = 0.5V (Note 3)
q
q
– 0.020
0.035
– 0.2
0.2
%
%
V FCB
I FCB
V OVL
I PROG
I Q
Forced Continuous Threshold
Forced Continuous Current
Output Overvoltage Lockout
V PROG Input Current
3.3V V OUT
5V V OUT
Input DC Supply Current
Normal Mode
Shutdown
V FCB Ramping Negative
V FCB = 1.19V
V PROG Pin Open
V PROG = 0V
V PROG = 5V
EXTV CC = 5V (Note 4)
V RUN/SS = 0V, 3.7V < V IN < 15V
q
1.16
1.24
1.19
–1
1.28
– 3.5
3.5
500
15
1.22
–2
1.32
–7
7
30
V
μ A
V
μ A
μ A
μ A
μ A
V RUN/SS
I RUN/SS
RUN/SS Pin Threshold
Soft Start Current Source
V RUN/SS = 0V
q
0.8
1.2
1.4
2.5
2
4
V
μ A
? V SENSE(MAX) Maximum Current Sense Threshold
V OSENSE = 1V, V PROG Pin Open
120
150
170
mV
TG Transition Time
TG t R
TG t F
Rise Time
Fall Time
C LOAD = 3300pF
C LOAD = 3300pF
50
50
150
150
ns
ns
2
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