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34710 Datasheet

  • 34710

  • Adjustable Dual Output Switching Power Supply

  • 16頁(yè)

  • MOTOROLA   MOTOROLA

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Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC34710
Rev 1.0, 04/2004
Preliminary Information
Adjustable Dual Output Switching
Power Supply
The 34710 is a dual-output power regulator IC that integrates a switching
regulator, a linear regulator, supervisor circuitry, and a power supply
sequencer. With a wide operating input voltage range of 12 V to 32 V and
robust temperature limits, the 34710 is applicable in many commercial and
industrial applications that use an MCU.
34710
ADJUSTABLE DUAL OUTPUT
SWITCHING POWER SUPPLY
Freescale Semiconductor, Inc...
A user-selectable 5.0 V/3.3 V buck switching regulator is provided for
board-level I/Os and user circuitry. The regulator is capable of delivering up to
1.0 A. The MCU core voltage is an adjustable 3.3 V/2.5 V/1.8 V/1.5 V linear
voltage regulator that can supply up to 500 mA.
The switching and linear regulator output voltage are determined through
three digital input mode terminals that can be controlled by an MCU.
Features
鈥?High-Current Adjustable 5.0 V/3.3 V Switching Regulator
鈥?Low Noise User-Selectable 3.3 V/2.5 V/1.8 V/1.5 V Linear Regulator
鈥?On-Chip Thermal Shutdown and Error Reset Circuitry
鈥?Supervisory Functions (Power-ON Reset and Error Reset Circuitry)
鈥?Sequenced I/O and Core Voltages
鈥?Pb-Free Packaging Designated by Suffix Code EW
EW (Pb-FREE) SUFFIX
CASE 1324-02
32-LEAD SOICW-EP
ORDERING INFORMATION
Device
PC34710EW/R2
Temperature
Range (T
A
)
0擄C to 85擄C
Package
32 SOICW-EP
Simplified Application Diagram
34710 Simplified Application Diagram
12 V to 32 V
B+
Vb
CP2
CP1
Mode0
Mode1
Mode2
LINB+
RST
GND
V
CORE
V
CORE
V
SWITCH
V
I/O_OUT
MCU
V
I/O
34710
This document contains information on a product under development.
Motorola reserves the right to change or discontinue this product without notice.
漏 Motorola, Inc. 2004
For More Information On This Product,
Go to: www.freescale.com

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