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MC33730EK PDF预览

MC33730EK

更新时间: 2024-03-03 10:10:19
品牌 Logo 应用领域
恩智浦 - NXP /
页数 文件大小 规格书
28页 1190K
描述
Power management IC, Switch Mode Power Supply with Multiple Linear Regulators, SOIC 32

MC33730EK 数据手册

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Document Number: MC33730  
Rev. 9.0, 8/2012  
escale Semiconductor  
Advance Information  
Switch Mode Power Supply with  
Multiple Linear Regulators  
33730  
The 33730 is a multiple output power supply integrated circuit for  
automotive applications. The integrated circuit (IC) incorporates a  
switching regulator, which operates over a wide input voltage range  
from 4.5 to 26.5 V.  
SWITCHING POWER SUPPLY  
The step-down switching regulator uses a fixed frequency pulse-  
width modulation (PWM) voltage mode control. It has a 3.5 A current  
limit (typical) and the slew-rate is adjustable via a control pin to reduce  
switching noise. The switching regulator has an adjustable frequency  
oscillator, which allows the user to optimize its operation over a wide  
range of input voltages and component values.  
The linear regulators can be configured either as two Normal mode  
regulators (VDD3, VDDL) and one standby regulator (VKAM), or as one  
Normal mode linear regulator (VDDL) and two standby regulators (VKAM  
and VDD3 Standby). Two protected outputs [VREF (1, 2)] are used to  
provide power to external sensors.  
EK SUFFIX (PB-FREE)  
98ARL10543D  
32-LEAD SOICW-EP  
Features  
• Provides all regulated voltages for Freescale 32-bit  
microcontroller family  
• Adjustable frequency switching buck regulator with slew-rate  
control  
ORDERING INFORMATION  
Temperature  
Device  
(Add R2 Suffix for  
Package  
Range (T )  
A
• Power sequencing provided  
Tape and Reel)  
• Programmable voltages VDDL, VDD3 - 3% accuracy  
• Programmable standby regulator VKAM - 15% accuracy,  
operating down to 4.5 V at the KA_VBAT pin  
• VDD3 can be programmed as an optional second standby  
regulator with 15% accuracy  
MCZ33730EK  
MC33730EK *  
-40 °C to 125 °C  
32-SOICW-EP  
* Recommended device for all new designs  
• Provides two 5.0 V protected supplies for sensors  
• Provides reverse battery protection FET gate drive  
• Provides necessary MCU monitoring and fail-safe support  
33730  
VBAT  
BOOT  
SW  
+
+
+
PFD  
KA_VBAT  
VIGN  
VDDH  
INV  
VCOMP  
5.0 V  
VDD3_B  
VDD3  
IGN_ON  
VREF1,2  
3.3 V  
5.0 V  
MCU  
(32 Bit)  
+
VDDL_B  
VDDL  
P1  
P2  
P3  
1.5 V  
CP  
VKAM  
KA_1.0 V  
5.0V  
GND  
HRT  
RSTs  
REGON  
Figure 1. 33730 Simplified Application Diagram  
* This document contains certain information on a new product.  
Specifications and information herein are subject to change without notice.  
© Freescale Semiconductor, Inc., 2009 - 2012. All rights reserved.  

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