công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

MPQ4458 bảng dữ liệu(PDF) 3 Page - Monolithic Power Systems

tên linh kiện MPQ4458
Giải thích chi tiết về linh kiện  Industrial Grade ,1A, 4MHz, 36V Step-Down Converter
PDF  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  MPS [Monolithic Power Systems]
Trang chủ  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MPQ4458 bảng dữ liệu(HTML) 3 Page - Monolithic Power Systems

  MPQ4458 Datasheet HTML 1Page - Monolithic Power Systems MPQ4458 Datasheet HTML 2Page - Monolithic Power Systems MPQ4458 Datasheet HTML 3Page - Monolithic Power Systems MPQ4458 Datasheet HTML 4Page - Monolithic Power Systems MPQ4458 Datasheet HTML 5Page - Monolithic Power Systems MPQ4458 Datasheet HTML 6Page - Monolithic Power Systems MPQ4458 Datasheet HTML 7Page - Monolithic Power Systems MPQ4458 Datasheet HTML 8Page - Monolithic Power Systems MPQ4458 Datasheet HTML 9Page - Monolithic Power Systems Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 16 page
background image
MPQ4458 –INDUSTRIAL GRADE,1A, 4MHz, 36V STEP-DOWN CONVERTER
MPQ4458 Rev. 1.0
www.MonolithicPower.com
3
12/5/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, VEN = 2.5V, VCOMP = 1.4V, TJ = -40°C to +85°C, unless otherwise noted. Typical values
are at TJ = 25°C.
Parameter
Symbol Condition
Min
Typ
Max
Units
TJ = 25°C
0.776
0.8
0.824
V
Feedback Voltage
VFB
4.5V < VIN < 36V
0.770
0.830
Feedback Bias Current
IFB
VFB= 0.8V
0.01
1.0
μA
Upper Switch On Resistance
RDS(ON)
VBST – VSW = 5V
300
mΩ
Upper Switch Leakage
VEN = 0V, VSW = 0V, VIN = 36V
1
μA
Current Limit
Duty Cycle = 50%
1.2
1.8
A
COMP
to
Current
Sense
Transconductance
GCS
3.1
A/V
Error Amp Voltage Gain
(5)
200
V/V
Error Amp Transconductance
ICOMP = ±3µA
20
60
100
µA/V
Error Amp Min Source current
VFB = 0.7V
5
µA
Error Amp Min Sink current
VFB = 0.9V
–5
µA
VIN UVLO Threshold
2.55
3.0
3.45
V
VIN UVLO Hysteresis
0.35
V
Soft-Start Time
(5)
0V < VFB < 0.8V
1.5
ms
RFREQ = 45kΩ
1.55
2
2.45
MHz
Oscillator Frequency
fS
RFREQ = 18kΩ
3.10
4
4.90
MHz
Shutdown Supply Current
VEN = 0V
12
18
µA
Quiescent Supply Current
IQ
No load, VFB = 0.9V
120
165
µA
Thermal Shutdown
150
°C
Thermal Shutdown Hysteresis
15
°C
Minimum Off Time
100
ns
Minimum On Time
(5)
100
ns
EN Up Threshold
1.2
1.5
1.8
V
EN Threshold Hysteresis
300
mV
Note:
5) Guaranteed by design.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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