参数资料
型号: KIT33702DWBEVB
厂商: Freescale Semiconductor
文件页数: 1/39页
文件大小: 0K
描述: KIT FEATURES THE MC34701
标准包装: 1
主要目的: DC/DC,LDO 步降
输出及类型: 2,非隔离
输入电压: 2.8 ~ 6V
稳压器拓扑结构: 降压
频率 - 开关: 300kHz
板类型: 完全填充
已供物品: 板,软件
已用 IC / 零件: MC34702
相关产品: MC34702EKR2CT-ND - IC POWER SUPPLY MCU 3A 32-SOIC
MC34702EKR2TR-ND - IC POWER SUPPLY MCU 3A 32-SOIC
MC34702EK-ND - IC POWER SUPPLY MCU 3A 32-SOIC
Freescale Semiconductor ?
Technical Data
3.0A Switch-Mode Power
Supply with Linear Regulator
The 34702 provides the means to efficiently supply the Freescale
Power QUICC? I, II, and other families of Freescale
microprocessors and DSPs. The 34702 incorporates a high
performance switching regulator, providing the direct supply for the
microprocessor’s 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 N-channel power MOSFETs to provide
protection features and to allow space-efficient, compact design.
The 34702 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
Document Number: MC34702
Rev 7.0, 8/2007
34702
POWER SUPPLY
?
?
?
?
?
Operating voltage from 2.8V to 6.0V
High-accuracy output voltages
Fast transient response
Switcher output current up to 3.0A
Under-voltage lockout and over-current protection
EW (PB-FREE) SUFFIX
98AARH99137A
32-PIN SOICW
ORDERING INFORMATION
?
?
?
Enable inputs and programmable watchdog timer
Voltage margining via I 2 C? bus
Reset with programmable power-ON delay
Device
MCZ34702EW/R2
Temperature
Range (T A )
-40 to 85°C
Package
32 SOICW
?
Pb-free packaging designated by suffix code EW
I 2 C is a trademark of Philips Corporation.
2.8 V to 6.0 V Input
34702
VIN2
VBD
VBST
VIN1
LDRV
CS
Adjustable:
0.8 V to VIN -
Other
Circuits
RT
ADDR
LDO
LFB
Dropout
VDDH (I/Os)
MPC8xxx
SDA
SCL
GND
RST
Adjustable:
PORESET
EN1
EN2
BOOT
SW
VBST
0.8 V to VIN -
Dropout
VDDL (Core)
CLKSYN
CLKSEL
VOUT
PGND
Optional
FREQ
INV
VDDI
Figure 1. 34702 Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the right to change the detail specifications,
as may be required, to permit improvements in the design of its products.
? Freescale Semiconductor, Inc., 2007. All rights reserved.
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