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參數(shù)資料
| 型號： | L5971D |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SO-16 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大小： | 158K |
| 代理商： | L5971D |
ELECTRICAL CHARACTERISTICS (Tj = 25°C, Cosc = 2.7nF, Rosc = 20k
, VCC = 12V, unless other-
wise specified.) * Specification Refered to Tj from 0 to 125°C
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
DYNAMIC CHARACTERISTIC
VI
Operating input voltage range
*
6.5
28
V
Vo
Output voltage
Io = 0.5A
1.247
1.26
1.273
V
Io = 0.2 to 1.5A
1.235
1.26
1.285
V
Vcc = 6.5 to 25V
*
1.21
1.26
1.31
V
Vd
Dropout voltage
Vcc = 10V; Io = 1.5A
0.44
0.55
V
*0.88
V
Il
Maximum limiting current
Vcc = 6.5 to 25V
*
2
2.5
3
A
Efficiency
Vo = 3.3V; Io = 1.5A
85
%
fs
Switching frequency
*
90
100
110
KHz
SVRR
Supply voltage ripple rejection
Vi = Vcc+2VRMS; Vo = Vref;
Io = 1.5A; f ripple = 100Hz
60
dB
Voltage stability of switching
frequency
Vcc = 6.5 to 25V
3
6
%
Temp. stability of switching
frequency
Tj = 0 to 125°C
4
%
Soft Start
Soft start charge current
30
40
50
A
Soft start discharge current
6
10
14
A
Inhibit
VLL
Low level voltage
*
0.9
V
IsLL
Isource Low level
*
5
15
A
THERMAL DATA
Symbol
Parameter
Minidip
SO16
Unit
Rth(j-amb)
Thermal Resistance Junction to ambient
Max.
90 (*)
110 (*)
°C/W
(*) Package mounted on board.
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Minidip
S016
V5, V3
V11, V4
Input voltage
30
V
V4
V5,V6
Output DC voltage
Output peak voltage at t = 0.1
s f=200KHz
-1
-5
V
I4
I5,I6
Maximum output current
int. limit.
V6-V5
V12-V11
14
V
V6
V12
Bootstrap voltage
45
V
V7,V2
V13,V3
Analogs input voltage (VCC = 12V)
10
V
V8
V14
(VCC = 20V)
6
-0.3
V
Ptot
Power dissipation a Tamb
≤ 60°C
Minidip
1W
SO16
0.8
W
Tj,Tstg
Junction and storage temperature
-40 to 150
°C
L5971
3/11
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相關代理商/技術參數(shù) |
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|---|---|
| L5971D013TR | 制造商:STMicroelectronics 功能描述: |
| L5972 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2A SWITCH STEP DOWN SWITCHING REGULATOR |
| L5972D | 功能描述:直流/直流開關調節(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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| L5972D013TR | 功能描述:直流/直流開關調節(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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