參數(shù)資料
型號(hào)： LTC1143L
廠商： Linear Technology Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 抗輻射高效，5安培開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù)： 6/20頁(yè)
文件大?。?/td> 372K
代理商： LTC1143L
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)
參數(shù)描述
LTC1143L-ADJ 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual High Efficiency SO-16 Step-Down Switching Regulator Controllers
LTC1143LCS 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(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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤(pán) 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
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(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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤(pán) 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(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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤(pán) 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(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(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤(pán) 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
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