參數(shù)資料
型號: LM2746MXAX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
中文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO14
封裝: PLASTIC, TSSOP-14
文件頁數(shù): 23/24頁
文件大?。?/td> 1087K
代理商: LM2746MXAX
Example Circuits
(Continued)
PART
U1
PART NUMBER
LM2746
TYPE
Synchronous
Controller
Dual N-MOSFET
PACKAGE
TSSOP-14
DESCRIPTION
VENDOR
NSC
Q1
FDS6898A
SO-8
20V, 10m
@
4.5V,
16nC
Fairchild
D1
L1
C
IN
1
MBR0520LTI
DO3316P-332
16SP100M
Schottky Diode
Inductor
Aluminum
Electrolytic
Aluminum
Electrolytic
Capacitor
SOD-123
3.3μH, 5.4Arms 15m
100μF, 16V, 2.89Arms
Coilcraft
Sanyo
10mm x 6mm
C
O
1
6SP220M
10mm x 6mm
220μF, 6.3V 3.1Arms
Sanyo
C
CC
, C
BOOT,
C
IN
2, C
O
2
C
C3
C
SS
C
C2
C
C1
R
FB2
R
FB1
R
FADJ
R
C2
R
CS
R
CC
R
C1
R
PULL-UP
VJ1206Y104KXXA
1206
0.1μF, 10%
Vishay
VJ0805Y222KXXA
VJ0805A123KXAA
VJ0805Y332KXXA
VJ0805A820KXAA
CRCW08051002F
CRCW08052211F
CRCW08051103F
CRCW08052611F
CRCW08054121F
CRCW080510R0F
CRCW08051272F
CRCW08051003J
Capacitor
Capacitor
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
805
805
805
805
805
805
805
805
805
805
805
805
2200pF, 10%
12nF, 10%
3300pF 10%
82pF, 10%
10.0k
1%
2.21k
1%
110k
1%
2.61k
1%
4.12 k
1%
10.0
1%
12.7k
1%
100k
5%
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
20147734
FIGURE 18. 12V to 3.3V
@
4A, f
SW
= 300kHz
L
www.national.com
23
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2746MXAX/NOPB 功能描述:IC REG CTRLR BUCK PWM VM 14TSSOP 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:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP(0.300",7.62mm) 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF)
LM2747 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization
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