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參數(shù)資料
| 型號： | L5973 |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關穩(wěn)壓器 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大?。?/td> | 166K |
| 代理商： | L5973 |
3/13
L5973AD
ELECTRICAL CHARACTERISTICS
(T
j
= 25°C, V
CC
= 12V, unless otherwise specified.)
Symbol
Parameter
V
CC
Operating input voltage range
R
DSON
Mosfet on Resistance
I
l
Maximum limiting current
f
s
Switching frequency
Duty cycle
DYNAMIC CHARACTERISTICS
(see test circuit ).
V
5
Voltage feedback
η
Efficiency
DC CHARACTERISTICS
I
qop
Total Operating Quiescent Current
I
q
Quiescent current
I
qst-by
Total stand-by quiescent current
INHIBIT
INH Threshold Voltage
Note:
1. Guaranteed by design
Test Condition
Min.
4.4
Typ.
Max.
36
0.5
Unit
V
A
V
o
= 1.235V; I
o
= 2A
0.250
2.3
V
CC
= 4.4V to 36V
500
KHz
%
0
100
4.4V < V
CC
< 36V
V
O
= 5V, V
CC
= 12V
1.220
1.235
1.25
V
90
%
5
7
mA
Duty Cycle = 0; V
FB
= 1.5V
V
inh
> 2.2V
2.7
100
mA
μ
A
50
Device ON
Device OFF
0.8
V
V
2.2
ERROR AMPLIFIER
V
OH
V
OL
I
o source
I
o sink
I
b
High level output voltage
Low level output voltage
Source output current
VFB = 1V
VFB = 1.5V
V
COMP
= 1.9V; V
FB
= 1V
V
COMP
= 1.9V; V
FB
= 1.5V
3.5
V
V
μ
A
mA
μ
A
dB
0.4
200
300
Sink output current
Source bias current
DC open loop gain
1
1.5
2.5
57
4
R
L
=
∞
I
comp
= -0.1mA to 0.1mA
V
COMP
= 1.9V
50
gm
Transconductance
2.3
mS
SYNC FUNCTION
High Input Voltage
Low Input Voltage
V
CC
= 4.4V to 36V
V
CC
= 4.4V to 36V
V
sync
= 0.74V
(1)
V
sync
= 2.33V
I
source
= 3mA
no load, V
sync
= 1.65V
2.5
V
REF
0.74
V
V
Slave Sink Current
0.11
0.21
0.25
0.45
mA
mA
Master Output Amplitude
2.75
3
V
μ
s
Output Pulse Width
0.20
0.35
REFERENCE SECTION
Reference Voltage
3.234
3.2
3.3
3.3
3.366
3.399
V
V
I
REF
= 0 to 5mA
V
CC
= 4.4V to 36V
I
REF
= 0mA
V
CC
= 4.4V to 36V
I
REF
= 0 to 5mA
Line Regulation
5
10
mV
Load Regulation
Short Circuit Current
8
15
30
mV
mA
10
18
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L5973A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2A SWITCH STEP DOWN SWITCHING REGULATOR |
| L5973AD | 功能描述:直流/直流開關調(diào)節(jié)器 1.235 to 35V Step-Dn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L5973AD_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2A switch step down switching regulator |
| L5973AD_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 A switch step down switching regulator |
| L5973ADTR | 功能描述:直流/直流開關調(diào)節(jié)器 1.235 to 35V Step-Dn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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