參數(shù)資料
型號(hào): LTC1142
廠商: Linear Technology Corporation
英文描述: OCTAL BUS TRANSCEIVER O.C. 20-SOIC 0 to 70
中文描述: 雙通道高效率同步降壓型開關(guān)穩(wěn)壓器
文件頁數(shù): 3/20頁
文件大?。?/td> 401K
代理商: LTC1142
3
LTC1142/LTC1142L/LTC1142HV
ELECTRICAL C
HARA TERISTICS
T
A
= 25
°
C, V
10
= V
24
= 10V, V
SHUTDOWN
= 0V, unless otherwise noted.
–40
°
C
T
A
85
°
C (Note 4), V
10
= V
24
= 10V, unless otherwise noted.
V
2
, V
16
I
2
, I
16
V
OUT
Feedback Voltage
Feedback Current
Regulated Output Voltage
3.3V Output
5V Output
Input DC Supply Current (Note 2)
Normal Mode
Sleep Mode
Shutdown
Input DC Supply Current (Note 2)
Normal Mode
Sleep Mode
Shutdown
Input DC Supply Current (Note 2)
Normal Mode
Sleep Mode
Shutdown
Current Sense Threshold Voltage
LTC1142HV-ADJ Only: V
10
, V
24
= 9V
LTC1142HV-ADJ Only
LTC1142, LTC1142HV
I
LOAD
= 700mA, V
24
= 9V
I
LOAD
= 700mA, V
10
= 9V
LTC1142
4V < V
10
, V
24
< 12V
4V < V
24
< 12V, 6V < V
10
< 12V
V
SHUTDOWN
= 2.1V, 4V < V
10
, V
24
< 12V
LTC1142HV-ADJ, LTC1142HV
4V < V
10
, V
24
< 18V
4V < V
24
< 18V, 6V < V
10
< 18V
V
SHUTDOWN
= 2.1V, 4V < V
10
, V
24
< 12V
LTC1142L-ADJ (Note 5)
3.5V < V
10
, V
24
< 12V
3.5V < V
10
, V
24
< 12V
V
SD1
= V
SD2
= 2.1V, 3.5V < V
10
, V
24
< 12V
LTC1142HV-ADJ, LTC1142L-ADJ
V
14
= V
28
= V
OUT
+ 100mV, V
2
= V
16
= V
REF
+ 25mV
V
14
= V
28
= V
OUT
– 100mV, V
2
= V
16
= V
REF
– 25mV
LTC1142, LTC1142HV
V
28
= V
OUT
+ 100mV (Forced)
V
28
= V
OUT
– 100mV (Forced)
LTC1142, LTC1142HV
V
14
= V
OUT
+ 100mV (Forced)
V
14
= V
OUT
– 100mV (Forced)
1.21
1.25
0.2
1.29
1
V
μ
A
3.17
4.85
3.33
5.05
3.40
5.20
V
V
I
10
, I
24
1.6
160
10
2.4
260
22
mA
μ
A
μ
A
1.6
160
10
2.6
280
24
mA
μ
A
μ
A
1.6
160
10
2.4
260
22
mA
μ
A
μ
A
V
1
– V
28
V
15
– V
14
25
150
mV
mV
130
170
25
150
mV
mV
125
175
25
150
0.8
5
mV
mV
125
0.55
3.8
175
2
6
V
SHUTDOWN
t
OFF
Shutdown Pin Threshold
Off-Time (Note 3)
V
C
T
= 390pF, I
LOAD
= 700mA
μ
s
SYMBOL
PARAMETER
Input DC Supply Current (Note 2)
Normal Mode
Sleep Mode
Shutdown
Current Sense Threshold Voltage
CONDITIONS
LTC1142L-ADJ (Note 5)
3.5V < V
10
, V
24
< 12V
3.5V < V
10
, V
24
< 12V
V
SD1
= V
SD2
= 2.1V, 3.5V < V
10
, V
24
< 12V
LTC1142HV-ADJ, LTC1142L-ADJ
V
14
= V
28
= V
OUT
+ 100mV, V
2
= V
16
= V
REF
+ 25mV
V
14
= V
28
= V
OUT
– 100mV, V
2
= V
16
= V
REF
– 25mV
LTC1142, LTC1142HV
V
28
= V
OUT
+ 100mV (Forced)
V
28
= V
OUT
– 100mV (Forced)
LTC1142, LTC1142HV
V
14
= V
OUT
+ 100mV (Forced)
V
14
= V
OUT
– 100mV (Forced)
MIN
TYP
MAX
UNITS
1.6
160
10
2.1
230
20
mA
μ
A
μ
A
V
1
– V
28
V
15
– V
14
25
150
mV
mV
G
130
170
25
150
mV
mV
G
130
170
25
150
0.8
1.2
70
2
5
100
mV
mV
G
130
0.5
170
2
5
90
10
6
200
V
SHUTDOWN
I
SHUTDOWN
I
11
, I
24
Shutdown Pin Threshold
Shutdown Pin Input Current
C
T
Pin Discharge Current
V
0V < V
SHUTDOWN
< 8V, V
10
, V
24
= 16V
V
OUT
in Regulation, V
SENSE–
= V
OUT
V
OUT
= 0V
C
T
= 390pF, I
LOAD
= 700mA
C
L
= 3000pF (Pins 6, 9, 20, 23), V
10
, V
24
= 6V
μ
A
μ
A
μ
A
μ
s
ns
50
t
OFF
t
r
, t
f
Off-Time (Note 3)
Driver Output Transition Times
4
相關(guān)PDF資料
PDF描述
LTC1142CG OCTAL BUS TRANSCEIVER O.C. 20-PDIP 0 to 70
LTC1142L OCTAL BUS TRANSCEIVER O.C. 20-PDIP 0 to 70
LTC1142L-ADJ OCTAL BUS TRANSCEIVER O.C. 20-SO 0 to 70
LTC1142-ADJ RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LTC1142HV-ADJ RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1142_00 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual High Efficiency Synchronous Step-Down Switching Regulators
LTC1142-ADJ 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual High Efficiency Synchronous Step-Down Switching Regulators
LTC1142CG 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP(0.173",4.40mm 寬) 包裝:帶卷 (TR)
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