- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377732 > LTC1142 (Linear Technology Corporation) OCTAL BUS TRANSCEIVER O.C. 20-SOIC 0 to 70 PDF資料下載
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)： | 5/20頁 |
| 文件大小： | 401K |
| 代理商： | LTC1142 |
5
LTC1142/LTC1142L/LTC1142HV
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
INPUT VOLTAGE (V)
0
S
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0
2
10
14
1142 G07
8
18
4
6
12
16
PER REGULATOR BLOCK
NOT INCLUDING
GATE CHARGE CURRENT
PINS 10, 24
ACTIVE MODE
SLEEP MODE
INPUT VOLTAGE (V)
0
S
μ
A
20
18
16
14
12
10
8
6
4
2
0
2
10
14
1142 G08
8
18
4
6
12
16
PER REGULATOR BLOCK
PINS 10, 24
V
SHUTDOWN
= 2V
V
IN
– V
OUT
VOLTAGE (V)
0
N
12
1142 G09
2
6
8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
4
10
70°C
0°C
25°C
V
OUT
= 5V
OPERATING FREQUENCY (kHz)
20
G
140
28
24
20
16
12
8
4
0
1142 G10
80
260
200
Q
N
+ Q
P
= 100nC
Q
N
+ Q
P
= 50nC
OUTPUT VOLTAGE (V)
0
O
μ
s
80
70
60
50
40
30
20
10
0
4
1142 G11
1
2
3
5
V
SENSE
= V
OUT
V
OUT
= 5V
V
OUT
= 3.3V
PI FU
LTC1142/LTC1142HV
SENSE
+
3 (Pin 1):
The (+) Input to the 3.3V Section
Current Comparator. A built-in offset between Pins 1 and
28 in conjunction with R
SENSE3
sets the current trip
threshold for the 3.3V section.
SHUTDOWN 3 (Pin 2):
When grounded, the 3.3V section
operates normally. Pulling Pin 2 high holds both MOSFETs
off and puts the 3.3V section in micropower shutdown
mode. Requires CMOS logic-level signal with t
r
, t
f
< 1
μ
s.
Do not “float” Pin 2.
U
Operating Frequency vs
V
IN
– V
OUT
TEMPERATURE (°C)
0
S
175
150
125
100
75
50
25
0
80
1142 G12
20
40
60
100
MAXIMUM
THRESHOLD
MINIMUM
THRESHOLD
Current Sense Threshold Voltage
Supply Current in Shutdown
Off-Time vs Output Voltage
DC Supply Current
Gate Charge Supply Current
SGND3 (Pin 3):
The 3.3V section small-signal ground
must be routed separately from other grounds to the (–)
terminal of the 3.3V section output capacitor.
PGND3 (Pin 4):
The 3.3V section driver power ground
connects to source of N-channel MOSFET and the (–)
terminal of the 3.3V section input capacitor.
NC (Pin 5):
No Connection.
NDRIVE 3 (Pin 6):
High Current Drive for Bottom N-Channel
MOSFET, 3.3V Section. Voltage swing at Pin 6 is from
ground to V
IN3
.
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) |
| LTC1142CG#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 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) |
| LTC1142CG#TR | 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:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。