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Document Number: MC34713
Rev. 5.0, 12/2008
Freescale Semiconductor
Advance Information
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2007-8. All rights reserved.
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.
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 mΩ integrated 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
• Pb-free packaging designated by suffix code EP.
Figure 1. 34713 Simplified Application Diagram
SWITCH-MODE POWER SUPPLY
EP SUFFIX
98ARL10577D
24-PIN QFN
34713
ORDERING INFORMATION
Device
Temperature
Range (T
A
)
Package
MC34713EP/R2 -40 to 85°C 24 QFN
VIN
VREFIN
PGND
VDDI
FREQ
ILIM
GND
PVIN
BOOT
SW
INV
COMP
VOUT
PG
SD
34713
VIN
V
OUT
V
MASTER
(3.0 TO 6.0 V) VIN
MICROCONTROLLER
DSP,
FPGA,
ASIC
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