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PC33702DWB Datasheet

  • PC33702DWB

  • 3.0 A Switch-Mode Power Supply with Linear Regulator

  • 24頁

  • MOTOROLA   MOTOROLA

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Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document from Analog Marketing: MC33702/D
Rev 0, 05/2003
Preliminary Information
3.0 A Switch-Mode Power Supply
with Linear Regulator
The 33702 provides the means to efficiently supply the Power QUICC鈩?I,
II, and other families of Motorola microprocessors and DSPs. The 33702
incorporates a high-performance switching regulator, providing the direct
supply for the microprocessor鈥檚 core, and a low dropout (LDO) linear regulator
control circuit providing the microprocessor I/O and bus voltage.
The switching regulator is a high-efficiency synchronous buck regulator with
integrated 50 m鈩?N-channel power MOSFETs to provide protection features
and to allow space-efficient, compact design.
The 33702 incorporates many advanced features; e.g., precisely
maintained up/down power sequencing, ensuring the proper operation and
protection of the CPU and power system.
Features
鈥?Operating Voltage: 2.8 V to 6.0 V
鈥?High-Accuracy Output Voltages
鈥?Fast Transient Response
鈥?Switcher Output Current Up to 3.0 A
鈥?Undervoltage Lockout
鈥?Power Sequencing
鈥?Programmable Watchdog Timer
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Voltage Margining via
Bus
Overcurrent Protection
Reset with Programmable Power-ON Delay
Enable Inputs
I
2
C鈩?/div>
33702
POWER SUPPLY
INTEGRATED CIRCUIT
Freescale Semiconductor, Inc...
DWB SUFFIX
CASE 1324-02
32-LEAD SOICW
ORDERING INFORMATION
Device
PC33702DWB/R2
Temperature
Range (T
A
)
-40 to 85擄C
Package
32 SOICW
I
2
C is a trademark of Phillips Corporation.
33702 Simplified Application Diagram
2.8
V
V
to
to
3. 5 V
V
put
2.8
1
6.0
In
MC3 3703
33702
V
IN2
VIN2
V
IN1
VIN1
O the r
Circuits
LDRV
CS
LDO
LFB
V
BD
VBD
VBST
V
BST
SR
RT
V
LDO
=
0.8 t o 5. 0 V
(Adjustable)
VDDH (I/Os)
ADDR
SDA
SCL
GND
MPC8XXX
MPC85xx
PORESET
RES ET
BO OT
SW
VBS T
EN1
EN2
V
OUT
=
0.8 to 5.0 V
(Adjus table)
VDDL (Core)
V
OUT
CLKS YN
VOUT
CLKS EL
PG ND
Optional
FREQ
I NV
This document contains information on a product under development.
Motorola reserves the right to change or discontinue this product without notice.
漏 Motorola, Inc. 2003
For More Information On This Product,
Go to: www.freescale.com

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