參數(shù)資料
型號(hào)： LM2670LDX-3.3
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, PDSO14
封裝： LLP-14
文件頁(yè)數(shù)： 21/26頁(yè)
文件大?。?/td> 441K
代理商： LM2670LDX-3.3
All Output Voltage Versions
Electrical Characteristics
Limits appearing in bold type face apply over the entire junction temperature range of operation, 40C to 125C. Specifica-
tions appearing in normal type apply for T
A =TJ = 25C. Unless otherwise specified VIN=12V for the 3.3V, 5V and Adjustable
versions and V
IN=24V for the 12V version, Sync pin open circuited..
Symbol
Parameter
Conditions
Typ
Min
Max
Units
DEVICE PARAMETERS
I
Q
Quiescent
Current
V
FEEDBACK = 8V
4.2
6
mA
For 3.3V, 5.0V, and ADJ Versions
V
FEEDBACK = 15V
For 12V Versions
I
STBY
Standby
Quiescent
Current
ON/OFF Pin = 0V
50
100/150
A
I
CL
Current Limit
4.5
3.8/3.6
5.25/5.4
A
I
L
Output Leakage
Current
V
IN = 40V, ON/OFF Pin = 0V
V
SWITCH =0V
V
SWITCH = 1V
16
200
15
A
mA
R
DS(ON)
Switch
On-Resistance
I
SWITCH =3A
0.15
0.17/0.29
f
O
Oscillator
Frequency
Measured at Switch Pin
260
225
280
kHz
D
Duty Cycle
Maximum Duty Cycle
91
%
Minimum Duty Cycle
0
%
I
BIAS
Feedback Bias
Current
V
FEEDBACK = 1.3V
ADJ Version Only
85
nA
V
ON/OFF
Threshold
Voltage
1.4
0.8
2.0
V
I
ON/OFF
ON/OFF Input
Current
ON/OFF Input = 0V
20
45
A
F
SYNC
Synchronization
Frequency
V
SYNC(Pin 5)=3.5V, 50% Duty Cycle
400
KHz
V
SYNC
SYNC Threshold
Voltage
1.4
V
θ
JA
Thermal
Resistance
T Package, Junction to Ambient
65
θ
JA
T Package, Junction to Ambient
45
θ
JC
T Package, Junction to Case
2
θ
JA
S Package, Junction to Ambient
56
C/W
θ
JA
S Package, Junction to Ambient
35
θ
JA
S Package, Junction to Ambient
26
θ
JC
S Package, Junction to Case
2
++
θ
JA
LD Package, Junction to Ambient
55
C/W
θ
JA
LD Package, Junction to Ambient
29
LM2670
www.national.com
4
相關(guān)PDF資料
PDF描述
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
LM2670TADJEP 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PZFM7
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2670LDX-ADJ 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:
LM2670S-12 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
LM2670S-12/NOPB 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
LM2670S12NOPB 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail
LM2670S-3.3 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。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(gòu)。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(gòu)

我的聯(lián)系方式

*
*
*