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

X  

MC34713EP bảng dữ liệu(PDF) 9 Page - Freescale Semiconductor, Inc

tên linh kiện MC34713EP
Giải thích chi tiết về linh kiện  5.0 A 1.0MHz Fully Integrated Single Switch-Mode Power Supply
Download  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC34713EP bảng dữ liệu(HTML) 9 Page - Freescale Semiconductor, Inc

Back Button MC34713EP Datasheet HTML 5Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 6Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 7Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 8Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 9Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 10Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 11Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 12Page - Freescale Semiconductor, Inc MC34713EP Datasheet HTML 13Page - Freescale Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 21 page
background image
Analog Integrated Circuit Device Data
Freescale Semiconductor
9
34713
FUNCTIONAL DESCRIPTION
INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
Advanced microprocessor-based systems require
compact, efficient, and accurate point-of-load (PoL) power
supplies. These PoL supply high current and fast transient
response capability while maintaining regulation accuracy.
Voltage monitoring (power sequencing) and increased
operating frequency are also key features for PoL power
supplies.
PoL power supplies are non-isolated DC to DC converters
that are physically located near their load (on the same
printed circuit board) and take their input supply from an
intermediate bus. Their close proximity to the load allows for
higher efficiency, localized protection, and minimum
distribution losses. Their compact design and low
component-count also reduces overall system cost.
The 34713 is a PoL single-output power supply that
embodies an integrated solution that’s both highly cost-
effective and reliable. It utilizes a voltage-mode synchronous
buck switching converter topology with integrated low
RDS(ON) (45 m) N-channel power MOSFETs for high-
efficiency operation. It provides an output voltage with an
accuracy of less than ±2.0 %, capable of supplying up to
5.0 A of continuous current. Its power sequencing/tracking
abilities makes it ideal for systems with multiple related
supply rails. It has an adjustable switching frequency, thus
permitting greater design flexibility and optimization over a
wide range of operating conditions, and can operate at up to
1.0 MHz to significantly reduce the external components size
and cost. It also features an over-current limit control, and
protects against output overvoltage, undervoltage, and
overtemperature conditions. It also protects the system from
short circuit events and incorporates a power-good output
signal to alert the host MCU should a fault occur.
Operation can be enabled or disabled by controlling the
SD pin, which offers power sequencing capabilities.
By monolithically integrating the control and supervisory
circuitry along with power-FETs, the 34713 offers a complete,
compact, cost-effective, and simple solution to satisfy the
PoL needs of today’s systems.
FUNCTIONAL PIN DESCRIPTION
REFERENCE VOLTAGE INPUT (VREFIN)
The 34713 will track the voltage applied at this pin.
FREQUENCY ADJUSTMENT INPUT (FREQ)
The buck converter switching frequency can be adjusted
by connecting this pin to an external resistor divider between
VDDI and GND pins. The default switching frequency (FREQ
pin connected to ground, GND) is set at 1.0 MHz.
SOFT START ADJUSTMENT INPUT (ILIM)
Soft start timing can be adjusted by applying an external
voltage between 1.25 and VDDI on this pin.
SIGNAL GROUND (GND)
Analog ground of the IC. Internal analog signals are
referenced to this pin voltage.
INTERNAL SUPPLY VOLTAGE OUTPUT (VDDI)
This is the output of the internal bias voltage regulator.
Connect a 1.0 µF, 6 V low ESR ceramic filter capacitor
between this pin and the GND pin. Filtering any spikes on this
output is essential to the internal circuitry stable operation.
OUTPUT VOLTAGE DISCHARGE PATH (VOUT)
Output voltage of the Buck Converter is connected to this
pin. it only serves as the output discharge path once the SD
signal is asserted.
ERROR AMPLIFIER INVERTING INPUT (INV)
Buck converter error amplifier inverting input. Connect the
output voltage feedback network to this pin.
COMPENSATION INPUT (COMP)
Buck converter external compensation network connects
to this pin. Use a type III compensation network.
INPUT SUPPLY VOLTAGE (VIN)
IC power supply input voltage. Input filtering is required for
the device to operate properly.
POWER GROUND (PGND)
Buck converter and discharge MOSFET power ground. It
is the source of the buck converter low-side power MOSFET.
SWITCHING NODE (SW)
Buck converter switching node. This pin is connected to
the output inductor.
POWER INPUT VOLTAGE (PVIN)
Buck converter power input voltage. This is the drain of the
buck converter high-side power MOSFET.
BOOTSTRAP INPUT (BOOT)
Bootstrap capacitor input pin. Connect a capacitor (as
discussed on page 17) between this pin and the SW pin to
enhance the gate of the high-side Power MOSFET during
switching.


Số phần tương tự - MC34713EP

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Freescale Semiconductor...
MC34713EP/R2 FREESCALE-MC34713EP/R2 Datasheet
587Kb / 23P
   5.0 A 1.0 MHz Fully Integrated Single Switch-Mode Power Supply
More results

Mô tả tương tự - MC34713EP

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Freescale Semiconductor...
34712 FREESCALE-34712 Datasheet
477Kb / 23P
   3.0A 1.0MHz Fully Integrated DDR Switch-Mode Power Supply
logo
NXP Semiconductors
KT34713UG NXP-KT34713UG Datasheet
2Mb / 18P
   Using the 5.0A 1.0MHz Fully Integrated Single Switch-Mode Power Supply
Rev. 4.0, 1/2009
logo
Freescale Semiconductor...
MC34713 FREESCALE-MC34713 Datasheet
587Kb / 23P
   5.0 A 1.0 MHz Fully Integrated Single Switch-Mode Power Supply
MC34717 FREESCALE-MC34717 Datasheet
778Kb / 28P
   5.0 A 1.0 MHz Fully Integrated Dual Switch-Mode Power Supply
34717 FREESCALE-34717 Datasheet
651Kb / 25P
   5.0 A 1.0 MHz Fully Integrated Dual Switch-Mode Dual Switch-Mode Power Supply
logo
NXP Semiconductors
KT34717UG NXP-KT34717UG Datasheet
1Mb / 20P
   Using the 5.0 A 1.0 MHz Fully Integrated Dual Switch-Mode Power Supply
Rev. 3.0, 1/2009
logo
Freescale Semiconductor...
MC34712 FREESCALE-MC34712 Datasheet
547Kb / 24P
   3.0 A 1.0 MHz Fully Integrated DDR Switch-Mode Power Supply
MC34164-3 FREESCALE-MC34164-3 Datasheet
477Kb / 23P
   3.0 A 1.0 MHz Fully Integrated DDR Switch-Mode Power Supply
logo
NXP Semiconductors
KT34712UG NXP-KT34712UG Datasheet
2Mb / 16P
   Using the 3.0 A 1.0 MHz Fully Integrated DDR Switch-Mode Power Supply
Rev. 4.0, 1/2009
logo
STMicroelectronics
L6590A STMICROELECTRONICS-L6590A Datasheet
238Kb / 19P
   FULLY INTEGRATED POWER SUPPLY
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
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   |   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