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参数资料
| 型号： | PC34710EW |
| 厂商： | MOTOROLA INC |
| 元件分类： | 稳压器 |
| 英文描述： | Adjustable Dual Output Switching Power Supply |
| 中文描述： | 1.2 A SWITCHING REGULATOR, 260 kHz SWITCHING FREQ-MAX, PDSO32 |
| 封装： | LEAD FREE, PLASTIC, SOIC-32 |
| 文件页数： | 1/16页 |
| 文件大小： | 518K |
| 代理商： | PC34710EW |
Simplified Application Diagram
34710 Simplified Application Diagram
MCU
34710
V
SWITCH
V
I/O_OUT
V
CORE
Vb
RST
GND
CP1
LINB+
Mode0
Mode1
Mode2
CP2
B+
12 V to 32 V
V
I/O
V
CORE
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
This document contains information on a product under development.
Motorola reserves the right to change or discontinue this product without notice.
Motorola, Inc. 2004
Document order number: MC34710
Rev 1.0, 04/2004
34710
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.
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
High-Current Adjustable 5.0 V/3.3 V Switching Regulator
Low Noise User-Selectable 3.3 V/2.5 V/1.8 V/1.5 V Linear Regulator
On-Chip Thermal Shutdown and Error Reset Circuitry
Supervisory Functions (Power-ON Reset and Error Reset Circuitry)
Sequenced I/O and Core Voltages
Pb-Free Packaging Designated by Suffix Code EW
EW (Pb-FREE) SUFFIX
CASE 1324-02
32-LEAD SOICW-EP
ORDERING INFORMATION
Device
Temperature
Range (T
A
)
Package
PC34710EW/R2
0°C to 85°C
32 SOICW-EP
ADJUSTABLE DUAL OUTPUT
SWITCHING POWER SUPPLY
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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