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參數(shù)資料
| 型號： | LM2670-5.0MDC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 25/30頁 |
| 文件大?。?/td> | 494K |
| 代理商： | LM2670-5.0MDC |
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All Output Voltage Versions
Electrical Characteristics
Limits appearing in bold type face apply over the entire junction temperature range of operation, 40C to 125C.
Specifications 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
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| 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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