參數(shù)資料
型號： LM2651MTCX-1.8
英文描述： Current-Mode SMPS Controller
中文描述： 電流模式開關(guān)電源控制器
文件頁數(shù)： 9/11頁
文件大?。?/td> 215K
代理商： LM2651MTCX-1.8
Application Circuits
(Continued)
TABLE 1. Components for the Typical 90 kHz Application Circuit
Input Voltage
Applicable Cell Stacks
7V to 18V IN
8 to 12 Cell NiCd or NiMh, 3 to 4 Cell Li Ion, 8 to 11 Cell Alkaline, 6 Cell
Lead Acid
5V, 3A Out
2 x 22 μF, 35V AVX TPS
Series or Sprague 593D Series
40μH (See Table 2)
3x220 μF, 10V AVX TPS
Series or Sprague 593D Series
R1 = 75k
, 1%,
R2 = 24.9k
, 1%,
R
C
= 37.4 k
,
C
C
= 4.7 nF,
R
3
= 3.57 k
,
C
10
= 5.6 nF
R
SIA
= 33 k
,
R
SOA
= 200 k
Output
3.3V, 3A out
2 x 22 μF, 35V AVX TPS
Series or Sprague 593D Series
33μH (See Table 2)
3x220 μF, 10V AVX TPS
Series or Sprague 593D Series
R1 = 41.2k
, 1%,
R2 = 24.9k
, 1%,
R
C
= 23.2 k
,
C
C
= 8.2 nF,
R
3
= 2.0 k
,
C
10
= 10 nF
R
SIA
= 39 k
,
R
SOA
= 130 k
Input Capacitor C
IN
Inductor L1
Output Capacitor C
OUT
Feedback Resistors R1
and R2
Compensation
Components R
C
, C
C
, R
3
,
and C
10
Sleep Resistors R
SIA
and R
SOA
TABLE 2. Toroidal Inductors Using Cores from MICROMETALS, INC.
Core
Number
T38
T38
T50
T50 (B)
Core
Material
52
52
52
18
Wire
Gauge
AWG
#
23
AWG
#
23
AWG
#
21
AWG
#
21
Number of
Strands
1
1
1
1
Number of
Turns
21
25
41
41
15μH
20μH
33μH
40μH
MICROMETALS
5615 E. La Palma Ave. Anaheim, CA 92807 USA (800) 356-5977
TABLE 3. Components for Typical 200 kHz Applications
Input Voltage
Applicable Cell Stacks
7V to 18V IN
8 to 12 Cell NiCd or NiMh, 3 to 4 Cell Li Ion, 8 to 11 Cell Alkaline, 6 Cell
Lead Acid
5V, 3A Out
2 x 22 μF, 35V AVX TPS
Series or Sprague 593D Series
20μH (See Table 2)
3x220 μF, 10V AVX TPS
Series or Sprague 593D Series
R1 = 75k
, 1%,
R2 = 24.9k
, 1%,
R
C
= 53.6 k
,
C
C
= 2.7 nF,
R
3
= 4.02 k
,
C
10
= 4.7 nF
R
SIA
= 33 k
,
R
SOA
= 200 k
R
FA
= 24.9 k
Output
3.3V, 3A out
2 x 22 μF, 35V AVX TPS
Series or Sprague 593D Series
15μH (See Table 2)
3x220 μF, 10V AVX TPS
Series or Sprague 593D Series
R1 = 41.2k
, 1%,
R2 = 24.9k
, 1%,
R
C
= 33.2 k
,
C
C
= 3.9 nF,
R
3
= 3.01 k
,
C
10
= 6.8 nF
R
SIA
= 47 k
,
R
SOA
= 91 k
R
FA
= 24.9 k
Input Capacitor C
IN
Inductor L1
Output Capacitor C
OUT
Feedback Resistors R1
and R2
Compensation
Components R
C
, C
C
, R
3
,
and C
10
Sleep Resistors R
SIA
and R
SOA
Frequency Adjusting
Resistor R
FA
L
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參數(shù)描述
LM2651MTCX-2.5 制造商:National Semiconductor Corporation 功能描述: 制造商:Texas Instruments 功能描述:
LM2651MTCX-2.5/NOPB 功能描述:IC REG BUCK SYNC 2.5V 16-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR
LM2651MTCX-3.3 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2651MTCX-3.3/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2651MTCX-ADJ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
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