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參數(shù)資料
| 型號： | LTC1143LCS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大小： | 372K |
| 代理商： | LTC1143LCS |
6
LTC1143/LTC1143L
LTC1143L-ADJ
PI
FU
CTIO
N
S
U
U
V
IN3
(Pin 13):
Supply Pin, 3.3V Section. Must be closely
decoupled to 3.3V power ground Pin 3.
C
T3
(Pin 14):
External capacitor C
T3
from Pin 14 to ground
sets the operating frequency for the 3.3V section. (The
actual frequency is also dependent upon the input voltage.)
I
TH3
(Pin 15):
Gain Amplifier Decoupling Point, 3.3V
Section. The 3.3V section current comparator threshold
increases with the Pin 15 voltage.
SENSE
–
3 (Pin 16):
Connects to internal resistive
divider which sets the output voltage for the 3.3V
section. Pin 16 is also the (–) input for the current
comparator on the 3.3V section.
LTC1143L-ADJ
SENSE
+
1 (Pin 1):
The (+) Input to the Section 1 Current
Comparator. A built-in offset between Pins 1 and 16 in
conjunction with R
SENSE 1
sets the current trip threshold
for section 1.
V
FB1
(Pin 2):
This pin serves as the feedback pin from an
external resistive divider used to set the output voltage for
section 1.
GND1 (Pin 3):
Section 1 Ground. Two independent ground
lines must be routed separately from other grounds to: 1)
the (–) terminal of the section 1 output capacitor and 2) the
cathode of the Schottky diode D1 and (–) terminal of C
IN1
(see Figure 1).
P-DRIVE 1 (Pin 4):
High Current Drive for Top P-Channel
MOSFET, Section 1. Voltage swing at this pin is from V
IN1
to ground.
V
IN2
(Pin 5):
Supply Pin, Section 2. Must be closely
decoupled to power ground Pin 11.
C
T2
(Pin 6):
External capacitor C
T2
from Pin 6 to ground sets
the operating frequency for section 2. (The actual frequency
is also dependent upon the input voltage.)
I
TH2
(Pin 7):
Gain Amplifier Decoupling Point, Section 2.
The section 2 current comparator threshold increases
with the Pin 7 voltage.
SENSE
–
2 (Pin 8):
Pin 8 is the (–) input for the current
comparator on section 2.
SENSE
+
2 (Pin 9):
The (+) Input to the Section 2 Current
Comparator. A built-in offset between Pins 9 and 8 in
conjunction with R
SENSE 2
sets the current trip threshold
for section 2.
V
FB2
(Pin 10):
This pin serves as the feedback pin from an
external resistive divider used to set the output voltage for
section 2.
GND2 (Pin 11):
Section 2 Ground. Two independent
ground lines must be routed separately from other grounds
to: 1) the (–) terminal of section 2 output capacitor and 2)
the cathode of the Schottky diode D2 and (–) terminal of
C
IN2
(see Figure 1).
P-DRIVE 2 (Pin 12):
High Current Drive for Top P-Channel
MOSFET, Section 2. Voltage swing at this pin is from V
IN2
to ground.
V
IN1
(Pin 13):
Supply Pin, Section 1. Must be closely
decoupled to power ground Pin 3.
C
T1
(Pin 14):
External capacitor C
T1
from Pin 14 to ground
sets the operating frequency for section 1. (The actual
frequency is also dependent upon the input voltage.)
I
TH1
(Pin 15):
Gain Amplifier Decoupling Point, Section 1.
The section 1 current comparator threshold increases
with the Pin 15 voltage.
SENSE
–
1 (Pin 16):
Pin 16 is the (–) input for the
current comparator on section 1.
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相關(guān)代理商/技術(shù)參數(shù) |
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| LTC1143LCS#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝: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 |
| LTC1143LCS#TR | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝: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 |
| LTC1143LCS#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝: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 |
| LTC1143LCS-ADJ | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 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:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
| LTC1143LCS-ADJ#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 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:24-WQFN 裸露焊盤 包裝:帶卷 (TR) |
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