- 您现在的位置：买卖IC网 > PDF目录44530 > LM1572MTC-ADJ/NOPB (NATIONAL SEMICONDUCTOR CORP) 3.2 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO16 PDF资料下载
参数资料
| 型号： | LM1572MTC-ADJ/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | TSSOP-16 |
| 文件页数： | 13/17页 |
| 文件大小： | 583K |
| 代理商： | LM1572MTC-ADJ/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
IN) (Note 3)
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
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| LM1575J-12/883 | 3 A SWITCHING REGULATOR, 58 kHz SWITCHING FREQ-MAX, CDIP16 |
| LM1575J-3.3/883 | 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, CDIP16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM1572MTCX-3.3/NOPB | 功能描述:IC REG BUCK 3.3V 1.5A 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
| LM1572MTCX-5.0/NOPB | 功能描述:IC REG BUCK 5V 1.5A 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
| LM1572MTCX-ADJ/NOPB | 功能描述:IC REG BUCK ADJ 1.5A 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
| LM1575 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ 1A Step-Down Voltage Regulator |
| LM1575_07 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ 1A Step-Down Voltage Regulator |
发布紧急采购，3分钟左右您将得到回复。