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參數(shù)資料
| 型號： | LM20154MHE |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4A, 1MHz PowerWise㈢ Synchronous Buck Regulator with SYNCOUT |
| 中文描述： | 6.6 A SWITCHING REGULATOR, 1150 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | TSSOP-16 |
| 文件頁數(shù)： | 4/22頁 |
| 文件大小： | 631K |
| 代理商： | LM20154MHE |
Symbol
V
IH_EN
V
EN_HYS
Parameter
EN Pin Turn on Threshold
Conditions
V
EN
Rising
Min
1.08
Typ
1.18
Max
1.28
Unit
V
EN Pin Hysteresis
66
mV
Thermal Shutdown
T
SD
T
SD_HYS
Thermal Resistance
θ
JA
Thermal Shutdown
160
°C
Thermal Shutdown Hysteresis
10
°C
Junction to Ambient
38
°C/W
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2:
The maximum allowable power dissipation is a function of the maximum junction temperature, T
, the junctions-to-ambient thermal resistance,
θ
JA
,
and the ambient temperature, T
. The maximum allowable power dissipation at any ambient temperature is calculated using: P
D_MAX
= (T
J_MAX
– T
A
)/θ
JA
. The
maximum power dissipations of 2.6W is determined using T
A
= 25°C,
θ
JA
= 38°C/W, and T
J_MAX
= 125°C.
Note 3:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor to each pin.
Typical Performance Characteristics
(Coilcraft MSS1038), V
IN
= 5V, V
OUT
= 1.2V, R
LOAD
= 1.2
, T
A
= 25°C for efficiency curves, loop gain plots and waveforms, and
T
J
= 25°C for all others.
Unless otherwise specified: C
IN
= C
OUT
= 100 μF, L = 1.0 μH
Efficiency vs. Load Current (V
IN
= 5V)
30030831
Efficiency vs. Load Current (V
IN
= 3.3V)
30030830
High-Side FET Resistance vs. Temperature
30030852
Low-Side FET Resistance vs. Temperature
30030853
www.national.com
4
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM20154MHE/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 |
| LM20154MHX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:4A, 1MHz PowerWise㈢ Synchronous Buck Regulator with SYNCOUT |
| LM20154MHX/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 |
| LM201A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SINGLE OPERATIONAL AMPLIFIER |
| LM201AD | 功能描述:運算放大器 - 運放 Gain Band-w 3.5MHz Dissipation 300mW RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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