数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

L7983 数据表(PDF) 7 Page - STMicroelectronics

部件名 L7983
功能描述  60 V, 300 mA synchronous step-down switching regulator with 10 μA quiescent current
PDF  43 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L7983 数据表(HTML) 7 Page - STMicroelectronics

Back Button L7983 Datasheet HTML 3Page - STMicroelectronics L7983 Datasheet HTML 4Page - STMicroelectronics L7983 Datasheet HTML 5Page - STMicroelectronics L7983 Datasheet HTML 6Page - STMicroelectronics L7983 Datasheet HTML 7Page - STMicroelectronics L7983 Datasheet HTML 8Page - STMicroelectronics L7983 Datasheet HTML 9Page - STMicroelectronics L7983 Datasheet HTML 10Page - STMicroelectronics L7983 Datasheet HTML 11Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 43 page
background image
4
Electrical characteristics
TJ = 25 °C, VIN = 24 V, VEN/UVLO = VIN, LNM selected, fSW = 1 MHz unless otherwise specified.
Table 6. Electrical characteristics
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Turn on and power section characteristics
VINH
VIN turn-on
VIN rising
2.6
2.8
3.0
V
VINL
VIN turn-off
VIN falling
2.5
2.7
2.9
Hysteresis
0.1
VWAKEUPH Wake-up ON threshold
VEN rising
0.7
V
VWAKEUPL
Wake-up OFF threshold
VEN falling
0.2
VENH
Enable ON threshold
VEN rising
1.1
1.2
1.3
VENL
Enable OFF threshold
VEN falling
0.9
1.0
1.1
Hysteresis
0.2
IPK
Peak current limit
Duty cycle < 20% (1)
0.42
0.47
0.52
A
Duty cycle = 100%, closed loop operation (1)
0.35
0.39
0.43
IVY
Valley current limit
(1)
0.43
0.52
0.61
ISKIP
Skip current limit
(1)
0.08
INEG
Reverse current limit
LNM selected, VFB = 0.9 V (1)
- 0.15
HS RDSON HS MOS ON resistance
ILX = 0.2 A
1.9
2.5
Ω
LS RDSON
LS MOS ON resistance
ILX = 0.2 A
0.85
1.2
fSW
Selected switching frequency
RFSW = 5.6 kΩ
450
500
550
kHz
RFSW = 0 Ω
900
1000
1100
RFSW = 56 kΩ
1980
2200
2420
D
Duty cycle
0
100
%
tON MIN
Minimum HS MOS on-time
60
ns
tSS
Internal soft-start time
1.3
2
2.7
ms
VCC and VBIAS
VCC
LDO output voltage
VBIAS = GND
2.9
3.3
3.6
V
VBIAS = 5 V
2.9
3.3
3.6
SWO
Switchover threshold
VBIAS increasing
3.2
V
Hysteresis
0.075
V
Power consumption
ISHTDWN
Shutdown current from VIN
VEN/UVLO = GND
2.3
3.2
µA
IQVIN
Quiescent current from VIN, LCM
(refer to Section 5.5 VCC and
switchover)
VBIAS = 5 V, VOUT = 1.05 * VREF(2)
3
6
VBIAS = GND, VOUT = 1.05 * VREF(2)
35
50
Quiescent current from VIN, LNM
VBIAS = 5 V, VOUT = 1.05 * VREF
170
205
VBIAS = GND, VOUT = 1.05 * VREF
1300
1500
L7983
Electrical characteristics
DS13354 - Rev 1
page 7/43



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com