參數(shù)資料
型號(hào)： LTC1437A
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安培開關(guān)穩(wěn)壓器
文件頁(yè)數(shù)： 7/28頁(yè)
文件大?。?/td> 518K
代理商： LTC1437A
7
LTC1436A
LTC1436A-PLL/LTC1437A
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
Auxiliary Regulator
Sink Current Available
AUX DR VOLTAGE (V)
0
0
A
5
10
15
20
2
4
6
8
1436 G19
10
12
14
16
Auxiliary Regulator PSRR
FREQUENCY (kHz)
10
10
20
30
40
50
60
70
P
100
1000
1436 G20
10mA LOAD
100mA LOAD
PI
FU
CTIO
N
S
U
U
V
IN
:
Main Supply Pin. Must be closely decoupled to the
IC’s signal ground pin.
INTV
CC
:
Output of the Internal 5V Regulator and EXTV
CC
Switch. The driver and control circuits are powered from
this voltage. Must be closely decoupled to power ground
with a minimum of 2.2
μ
F tantalum or electrolytic capacitor.
DRV
CC
:
Bottom MOSFET Driver Supply Voltage.
EXTV
CC
:
Input to the Internal Switch Connected to INTV
CC
.
This switch closes and supplies V
CC
power whenever
EXTV
CC
is higher than 4.7V. See EXTV
CC
connection in
Applications Information section. Do not exceed 10V on
this pin. Connect to V
OUT
if V
OUT
≥
5V.
BOOST:
Supply to Topside Floating Driver. The bootstrap
capacitor is returned to this pin. Voltage swing at this pin
is from INTV
CC
to V
IN
+ INTV
CC
.
SW:
Switch Node Connection to Inductor. Voltage swing
at this pin is from a Schottky diode (external) voltage drop
below ground to V
IN
.
SGND:
Small Signal Ground. Must be routed separately
from other grounds to the (–) terminal of C
OUT
.
PGND:
Driver Power Ground. Connects to source of
bottom N-channel MOSFET and the (–) terminal of C
IN
.
SENSE
–
:
The (–) Input to the Current Comparator.
SENSE
+
:
The (+) Input to the Current Comparator. Built-
in offsets between SENSE
–
and SENSE
+
pins in conjunction
with R
SENSE
set the current trip thresholds.
V
OSENSE
:
Receives the remotely sensed feedback voltage
either from the output or from an external resistive divider
across the output . The V
PROG
pin determines which point
V
OSENSE
must connect to.
V
PROG
:
This voltage selects the output voltage. For V
PROG
< V
INTVCC
/3 the output is set to 3.3V with V
OSENSE
connected to the output. With V
PROG
> V
INTVCC
/1.5 the
output is set to 5V with V
OSENSE
connected to the output.
Leaving V
PROG
open (DC) allows the output voltage to be
set by an external resistive divider connected to V
OSENSE
.
C
OSC
: External capacitor C
OSC
from this pin to ground sets
the operating frequency.
I
TH
:
Error Amplifier Compensation Point. The current
comparator threshold increases with this control voltage.
Nominal voltage range for this pin is 0V to 2.5V.
RUN/SS:
Combination of Soft Start and Run Control
Inputs. A capacitor to ground at this pin sets the ramp time
to full current output. The time is approximately 0.5s/
μ
F.
相關(guān)PDF資料
PDF描述
LTC1437ACG RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LTC1437AIG Dual, Micropower, Push-Pull Outputs, LinCMOS(TM) Voltage Comparator 8-SOIC 0 to 70
LTC1438XCG Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators
LTC1438 Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators
LTC1438CG Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1437ACG 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(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 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC1437ACG#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:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 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 ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
LTC1437ACG#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(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 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC1437ACG#TRPBF 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:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 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 ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
LTC1437AIG 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(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 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)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*