參數(shù)資料
型號(hào)： LM2670-5.0MDC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 穩(wěn)壓器
英文描述： 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, UUC
封裝： DIE
文件頁(yè)數(shù)： 22/30頁(yè)
文件大?。?/td> 494K
代理商： LM2670-5.0MDC
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2670.html
LM2670S-5.0
7
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LM2670S-ADJ
7
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LM2670
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LM2670SX-12
7
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LM2670
S-12
LM2670SX-3.3
7
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[logo]UZ2T
LM2670
S-3.3
LM2670SX-5.0
7
Full
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N/A
1K+
$3.0600
reel
of
500
[logo]UZ2T
LM2670
S-5.0
LM2670SX-ADJ
7
Full
production
N/A
1K+
$3.0600
reel
of
500
[logo]UZ2T
LM2670
S-ADJ
LM2670-5.0
MDC
Full
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LM2670-5.0
MWC
Full
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N/A
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N/A
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General Description
The LM2670 series of regulators are monolithic integrated circuits which provide all of the active functions for
a step-down (buck) switching regulator capable of driving up to 3A loads with excellent line and load
regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance DMOS
power switch. The series consists of fixed output voltages of 3.3V, 5V and 12V and an adjustable output
version.
The SIMPLE SWITCHER concept provides for a complete design using a minimum number of external
components. The switching clock frequency can be provided by an internal fixed frequency oscillator
(260KHz) or from an externally provided clock in the range of 280KHz to 400Khz which allows the use of
physically smaller sized components. A family of standard inductors for use with the LM2670 are available
from several manufacturers to greatly simplify the design process. The external Sync clock provides direct
and precise control of the output ripple frequency for consistent filtering or frequency spectrum positioning.
The LM2670 series also has built in thermal shutdown, current limiting and an ON/OFF control input that can
power down the regulator to a low 50A quiescent current standby condition. The output voltage is
guaranteed to a ±2% tolerance.
Features
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2670.html (3 of 4) [Aug-09-2002 2:42:49 PM]
相關(guān)PDF資料
PDF描述
LM2670LDX-3.3 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14
LM2670LD-3.3 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14
LM2670LD-12 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14
LM2670LD-5.0 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14
LM2670LD-ADJ 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2670EP 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM2670EP Enhanced Plastic SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync
LM2670LD-12 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
LM2670LD-3.3 制造商:Rochester Electronics LLC 功能描述:3A STEP DOWN SIMP SWITCH 260KH - Bulk 制造商:Texas Instruments 功能描述:
LM2670LD-5.0 制造商:Rochester Electronics LLC 功能描述:3A STEP DOWN SIMP SWITCH 260KH - Bulk
LM2670LD-ADJ 制造商:Rochester Electronics LLC 功能描述:3A STEP DOWN SIMP SWITCH 260KH - Bulk
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