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

X  

Preview PDF HTML

LM3370 bảng dữ liệu(PDF) 14 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LM3370
Giải thích chi tiết về linh kiện  Dual Synchronous Step-Down DC-DC Converter with Dynamic Voltage Scaling Function
PDF  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3370 bảng dữ liệu(HTML) 14 Page - National Semiconductor (TI)

Back Button LM3370 Datasheet HTML 10Page - National Semiconductor (TI) LM3370 Datasheet HTML 11Page - National Semiconductor (TI) LM3370 Datasheet HTML 12Page - National Semiconductor (TI) LM3370 Datasheet HTML 13Page - National Semiconductor (TI) LM3370 Datasheet HTML 14Page - National Semiconductor (TI) LM3370 Datasheet HTML 15Page - National Semiconductor (TI) LM3370 Datasheet HTML 16Page - National Semiconductor (TI) LM3370 Datasheet HTML 17Page - National Semiconductor (TI) LM3370 Datasheet HTML 18Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 14 / 23 page
background image
Operation Description (Continued)
FORCED PWM MODE
The LM3370 auto mode can be bypassed by forcing the
device to operate in PWM mode, this can be implemented
through the I
2C compatible interface; see Output Table on
page 19.
SOFT-START
The LM3370 has a soft start circuit that limits in-rush current
during start up. Soft start is activated only if EN goes from
logic low to logic high after V
IN reaches 2.7V.
LDO - LOW DROP OUT OPERATION
The LM3370 can operate at 100% duty cycle (no switching,
PFET switch completely on) for low drop out support of the
output voltage. In this way the output voltage will be con-
trolled down to the lowest possible input voltage. The mini-
mum input voltage needed to support the output voltage is
V
IN,MIN =ILOAD*(RDSON,PFET +RINDUCTOR)+VOUT
• I
LOAD
load current
• R
DSON/PFET drain to source resistance of PFET switch in
the triode region
• R
INDUCTOR
inductor resistance
20167303
FIGURE 5. Operation in PFM Mode and Transfer to PWM Mode
www.national.com
14



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


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