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Freescale Semiconductor Electronic Components Datasheet

MC34713 Datasheet

Fully Integrated Single Switch-Mode Power Supply

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Freescale Semiconductor
Advance Information
5.0 A 1.0 MHz Fully Integrated
Single Switch-Mode Power
Supply
The 34713 is a highly integrated, space efficient, low cost, single
synchronous buck switching regulator with integrated N-channel
power MOSFETs. It is a high performance point-of-load (PoL) power
supply with the ability to track an external reference voltage in
different configurations. This device is powered by SMARTMOS
technology.
Its high efficient 5.0 A continuous output current capability
combined with its voltage tracking/sequencing ability and tight output
regulation, makes it ideal as a single power supply.
The 34713 offers the designer the flexibility of many control,
supervisory, and protection functions to allow for easy implementation
of complex designs. It is housed in a Pb-free, thermally enhanced,
and space-efficient 24-Pin Exposed Pad QFN.
Features
• 50 mintegrated N-channel power MOSFETs
• Input voltage operating range from 3.0 to 6.0 V
1% accurate output voltage, ranging from 0.7 to 3.6 V
• Voltage tracking capability in different configurations.
• Programmable switching frequency range from 200 kHz to
1.0 MHz with a default of 1.0 MHz
• Programmable soft start timing
• Over-current limit and short-circuit protection
• Thermal shutdown
• Output over-voltage and under-voltage detection
• Active low power good output signal
• Active low shutdown input.
Document Number: MC34713
Rev. 6.0, 11/2014
34713
SWITCH-MODE POWER SUPPLY
EP SUFFIX
98ASA00474D
24-PIN QFN
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC34713EP/R2 -40 °C to 85 °C
24 QFN
(3.0 TO 6.0 V) VIN
VMASTER
34713
VIN PVIN
VREFIN
PGND
VDDI
BOOT
SW
INV
VOUT
FREQ
ILIM
GND
COMP
VOUT
PG
SD
VIN
Figure 1. 34713 Simplified Application Diagram
MICROCONTROLLER
DSP,
FPGA,
ASIC
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2008-2014. All rights reserved.


Freescale Semiconductor Electronic Components Datasheet

MC34713 Datasheet

Fully Integrated Single Switch-Mode Power Supply

No Preview Available !

INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
SD
PG
FREQ
ILIM
VDDI
VREFIN
GND
Thermal
Monitoring
System
M1 Reset
ILIMIT
System
Control
Internal
Voltage
Regulator
VDDI
M2
VIN
BOOT
Prog Frequency
Prog Soft Start
ISENSE
VDDI
Bandgap
Regulator
Discharge
Oscillator
VIN VBOOT
PVIN
Buck
Control
Logic
FSW
M3
Gate
Driver
ISENSE
SW
Current
Monitoring
ILIMIT
PWM
Comparator
VBG Ramp
Generator
M4
Error
Amplifier
PGND
COMP
INV
Reference
VBG
Selection
M5
VOUT
Discharge
Figure 2. 34713 Simplified Internal Block Diagram
34713
2
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number MC34713
Description Fully Integrated Single Switch-Mode Power Supply
Maker Freescale Semiconductor
Total Page 24 Pages
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