參數(shù)資料
型號： LTC1772
廠商： Linear Technology Corporation
英文描述： Constant Frequency Current Mode Step-Down DC/DC Controller in SOT-23
中文描述： 恒定頻率電流模式降壓DC / DC控制器，采用SOT - 23
文件頁數(shù)： 11/16頁
文件大?。?/td> 188K
代理商： LTC1772
11
LTC1772
APPLICATIO
S I
N
FOR
ATIO
U
PC Board Layout Checklist
When laying out the printed circuit board, the following
checklist should be used to ensure proper operation of the
LTC1772. These items are illustrated graphically in the
layout diagram in Figure 6. Check the following in your
layout:
1. Is the Schottky diode closely connected between ground
(Pin 2) and drain of the external MOSFET
2. Does the (+) plate of C
IN
connect to the sense resistor
as closely as possible This capacitor provides AC
current to the MOSFET.
3. Is the input decoupling capacitor (0.1
μ
F) connected
closely between V
IN
(Pin 5) and ground (Pin 2)
W
U
Figure 6. LTC1772 Layout Diagram (See PC Board Layout Checklist)
4. Connect the end of R
SENSE
as close to V
IN
(Pin 5) as
possible. The V
IN
pin is the SENSE
+
of the current
comparator.
5. Is the trace from SENSE
–
(Pin 4) to the Sense resistor
kept short Does the trace connect close to R
SENSE
6. Keep the switching node PGATE away from sensitive
small signal nodes.
7. Does the V
FB
pin connect directly to the feedback
resistors The resistive divider R1 and R2 must be
connected between the (+) plate of C
OUT
and signal
ground. The 100pF capacitor should be as close as
possible to the LTC1772.
L1
5W
M1
R1
BOLD LINES INDICATE HIGH CURRENT PATHS
R2
D1
R
S
V
IN
V
OUT
1772 F06
0.1
μ
F
C
OUT
C
ITH
R
ITH
C1
+
C
IN
+
I
TH
/RUN
LTC1772
GND
V
FB
6
5
4
1
2
3
PGATE
V
IN
SENSE
–
相關(guān)PDF資料
PDF描述
LTC1773 Synchronous Step-Down Regulator Controller(同步步降穩(wěn)壓器)
LTC1775C Quadruple 2-Input Positive-NAND Gate 14-TVSOP -40 to 85
LTC1775IGN RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LTC1775CGN Quadruple 2-Input Positive-NAND Gate 14-TVSOP -40 to 85
LTC1775CS Quadruple 2-Input Positive-NAND Gate 14-SOIC -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1772BES6 制造商:Linear Technology 功能描述:IC CTRLR DC/DC S-DWN SOT23-6
LTC1772BES6#PBF 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Down 2.5V to 9.8V Input 6-Pin TSOT-23 制造商:Linear Technology 功能描述:DC-DC CONTROLLER BUCK 5A TS 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BUCK, 5A, TSOT-23-6; Primary Input Voltage:9.8V; No. of Outputs:1; Output Current:5A; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:6-TSOT-23; Supply Voltage Max:9.8V;RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BUCK, 5A, TSOT-23-6; Primary Input Voltage:9.8V; No. of Outputs:1; Output Current:5A; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:6-TSOT-23 ;RoHS Compliant: Yes
LTC1772BES6#TR 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 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:2,500 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)
LTC1772BES6#TRM 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 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:2,500 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)
LTC1772BES6#TRMPBF 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 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:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*