参数资料
型号: LTC1143CS
厂商: Linear Technology
文件页数: 2/20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: 2
频率 - 最大: 400kHz
占空比: 100%
电源电压: 3.5 V ~ 16 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
其它名称: LTC1143CSW
LTC1143CSW-ND
LTC1143/LTC1143L
LTC1143L-ADJ
ABSOLUTE M AXI M U M RATINGS
Input Supply Voltage (Pins 5,13) ............... 16V to –0.3V
Continuous Output Current (Pins 4,12) ................ 50mA
Sense Voltages (Pins 1, 8, 9, 16)
V IN ≥ 12.7V .......................................... 13V to – 0.3V
V IN < 12.7V .............................. (V IN + 0.3V) to – 0.3V
Shutdown Voltage
(LTC1143, LTC1143L, Pins 2, 10)...........7V to – 0.3V
PACKAGE/ORDER I N FOR M ATIO N
V FB Current (LTC1143L-ADJ, Pins 2, 10) ............... 1mA
Operating Temperature Range
Ambient .................................................. 0 ° C to 70 ° C
Extended Commercial (Note 4) ........... –40 ° C to 85 ° C
Junction Temperature (Note 1) ............................. 125 ° C
Storage Temperature Range .................. –65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
TOP VIEW
ORDER PART
TOP VIEW
ORDER PART
SENSE + 3
1
16
SENSE –
3
NUMBER
SENSE + 1 1
16 SENSE – 1
NUMBER
SHUTDOWN 3 2
15 I TH3
V FB1 2
15 I TH1
GND3 3
P-DRIVE 3 4
V IN5 5
C T5 6
I TH5 7
14 C T3
13 V IN3
12 P-DRIVE 5
11 GND5
10 SHUTDOWN 5
LTC1143CS
LTC1143LCS
GND1 3
P-DRIVE 1 4
V IN2 5
C T2 6
I TH2 7
14 C T1
13 V IN1
12 P-DRIVE 2
11 GND2
10 V FB2
LTC1143LCS-ADJ
SENSE – 5 8
9
SENSE + 5
SENSE – 2 8
9
SENSE + 2
S PACKAGE
16-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 95 ° C/W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
S PACKAGE
16-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 95 ° C/W
T A = 25 ° C, V IN = 10V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V 2 , V 10
I 2 , I 10
Feedback Voltage (LTC1143L-ADJ)
Feedback Current (LTC1143L-ADJ)
V IN = 9V
q
q
1.21
1.25
0.2
1.29
1
V
μ A
V OUT
Regulated Output Voltage (LTC1143/LTC1143L)
V IN3, V IN5 = 9V, V 2 = V 10 = 0V
3.3V Output
5V Output
I LOAD = 700mA
I LOAD = 700mA
q
q
3.23
4.90
3.33
5.05
3.43
5.20
V
V
? V OUT
Output Voltage Line Regulation
V IN = 7V to 12V, I LOAD = 50mA
–40
0
40
mV
Output Voltage Load Regulation
LTC1143/LTC1143L
V 2 = V 10 = 0V
3.3V Output
5V Output
Output Ripple (Burst Mode)
5mA < I LOAD < 2.0A
5mA < I LOAD < 2.0A
I LOAD = 0A
q
q
40
60
50
65
100
mV
mV
mV P-P
I 5 , I 13
Input DC Supply Current (Note 2)
LTC1143: Normal Mode
Sleep Mode
Shutdown
LTC1143L: Normal Mode
Sleep Mode
Shutdown
LTC1143L-ADJ: Normal Mode
Sleep Mode
V 2 = V 10 = 0V, 4V < V IN < 12V
V 2 = V 10 = 0V, 4V < V IN3 < 12V, 6V < V IN5 < 12V
V 2 = V 10 = 2.1V, 4V < V IN < 12V
V 2 = V 10 = 0V, 3.5V < V IN < 12V
V 2 = V 10 = 0V, 3.5V < V IN3 < 12V, 6V < V IN5 < 12V
V 2 = V 10 = 2.1V, 3.5V < V IN < 12V
3.5V < V IN < 12V
3.5V < V IN < 12V, V OUT ≤ 3.3V
1.6
160
10
1.6
160
10
1.6
160
2.1
230
20
2.1
230
20
2.1
230
mA
μ A
μ A
mA
μ A
μ A
mA
μ A
2
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