參數(shù)資料
型號(hào)： LM1572MTCX-3.3/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 3.2 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO16
封裝： TSSOP-16
文件頁數(shù)： 13/17頁
文件大?。?/td> 583K
代理商： LM1572MTCX-3.3/NOPB
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Tolerance (Note 2)
2kV
Input Voltage
17V
SD Pin Voltage
7V
FB Pin Voltage (All Options)
7V
Storage Temp. Range
65C to 150C
Junction Temperature
150C
Operating Ratings
Supply Voltage (V
8.5V to 16V
Junction Temperature Range
40C to +125C
Package Thermal Resistance
(TSSOP-16) (Note 4)
130C/W
Electrical Characteristics
Unless otherwise specified, all limits are guaranteed for T
A = 25C, VIN = 15V, VCOMP = 1.5V, VSD = 5V, ILOAD = 0A, unless
otherwise noted. Boldface apply over the temperature extremes. ’V
FB low (high)’ is 0.95 (1.05) times the nominal value at
regulation.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
FB_ADJ
Voltage on Feedback pin
(Adjustable version in regulation)
2.37
2.35
2.42
2.49
2.5
V
FB_5
Voltage on Feedback pin (Fixed
5V version in regulation)
4.85
4.8
5.0
5.15
5.2
V
FB_3.3
Voltage on Feedback pin (Fixed
3.3V version in regulation)
3.22
3.16
3.3
3.4
3.44
V
FB/VIN
Feedback Voltage Line
Regulation
V
IN = 8.5V to VIN = 16V
0.05
0
0.05
%/V
I
FB_REG
Feedback Pin Bias Current
(Adjustable Part)
V
FB at regulation
0
0.5
1.5
A
AV
ERROR
Error Amplifier Voltage Gain
350
gm
EA
Error Amplifier
Transconductance (Note 7)
1100
800
2000
2700
3200
Mho
gm
COMP_SW
Comp Pin to Switch Current
Transconductance
2
A/V
I
EA_SOURCE
Error Amplifier Source Current
V
FB low
50
200
300
A
I
EA_SINK
Error Amplifier Sink Current
V
FB high
2.4
mA
V
COMP_TH
Comp Pin Switching Threshold
Duty Cycle = 0
0.9
V
COMP_LIM
Comp Pin High Clamp
2
V
I
CLIM
Switch Current Limit
V
BOOT =VSW + 5V,
Comp Open,
V
FB low
D
≤ 0.5
2.0
2.7
3.2
A
D = 0.8
1.75
2.4
3
R
DS
Switch ON Resistance
I
SW = 1.5A, VBOOT =VIN + 5V
0.15
0.4
0.5
D
MAX
Maximum Duty Cycle
Comp Open,
V
FB low
86
94
%
f
SW
Switch Frequency
V
FB low, VCOMP = 1V,
Full Temp.
Range
400
500
570
kHz
-20C
≤ T
J
≤
125C
440
560
f
REG
Switch Frequency Line
Regulation
V
IN = 8.5V and
V
IN = 16V,VFB low, VCOMP =1V
0.01
%/V
f
FOLDBACK
Foldback Frequency shift
(Adjustable part)
V
FB = 0.8V, VCOMP = 1V
20
90
160
kHz
LM1572
www.national.com
5
相關(guān)PDF資料
PDF描述
LM1572MTC-3.3/NOPB 3.2 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO16
LM1572MTC-ADJ/NOPB 3.2 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO16
LM1575J-ADJ/883 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, CDIP16
LM1575J-5.0/883 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, CDIP16
LM1575J-15/883 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, CDIP16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM1572MTCX-5.0/NOPB 功能描述:IC REG BUCK 5V 1.5A 16TSSOP 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
LM1572MTCX-ADJ/NOPB 功能描述:IC REG BUCK ADJ 1.5A 16TSSOP 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
LM1575 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ 1A Step-Down Voltage Regulator
LM1575_07 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ 1A Step-Down Voltage Regulator
LM1575-12 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER 1A STEP-DOWN VOLTAGE REGULATOR
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(hào)，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(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。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

我的聯(lián)系方式

*
*
*