位置:MC33998R2 > MC33998R2详情

MC33998R2中文资料

厂家型号

MC33998R2

文件大小

442.35Kbytes

页面数量

20

功能描述

Switching Power Supply with Linear Regulators

数据手册

下载地址一下载地址二到原厂下载

简称

FREESCALE飞思卡尔

生产厂商

Freescale Semiconductor, Inc

中文名称

飞思卡尔半导体官网

MC33998R2数据手册规格书PDF详情

The 33998 is a medium-power, multi-output power supply integrated circuit that is capable of operating over a wide input voltage range, from 6.0 V up to 26.5 V with 40 V transient capability.

It incorporates a sensorless current mode control step-down switching controller regulating directly to 5.0 V. The 2.6 V linear regulator uses an external pass transistor to reduce the 33998 power dissipation. The 33998 also provides a 2.6 V linear standby regulator and two 5.0 V sensor supply outputs protected by internal low resistance LDMOS transistors.

There are two separate enable pins for the main and sensor supply outputs and standard supervisory functions such as resets with power-up reset delay. The 33998 provides proper power supply sequencing for advanced microprocessor architectures such as the MPC5xx and 683xx microprocessor families.

Features

• Operating Voltage Range 6.0 V up to 26.5 V (40 V transient)

• Step-Down Switching Regulator Output VDDH = 5.0 V @ 1400 mA (total)

• Linear Regulator with External Pass Transistor VDDL = 2.6 V @ 400 mA

• Low-Power Standby Linear Regulator VKAM = 2.6 V @ 10 mA

• Two 5.0 V @ 200 mA (typical) Sensor Supplies VREF Protected

Against Short-to-Battery and Short-to-Ground with Retry Capability

• Undervoltage Shutdown on the VDDL, VDDH Outputs with Retry Capability

• Reset Signals

• Power-Up Delay

• Enable Pins for Main Supplies (EN) and Sensor Supplies (SNSEN)

• Power Sequencing for Advanced Microprocessor Architectures

• Pb-Free Packaging Designated by Suffix Code EG

更新时间:2025-10-23 16:30:00
供应商 型号 品牌 批号 封装 库存 备注 价格
FREESCALE
23+
54-SOIC
8500
全新原装!Freescale优势供货渠道!特价!请放心订购!
恩XP
24+
54-SOICW-EP
36500
一级代理/放心采购
恩XP
25+
SOP-54
1001
就找我吧!--邀您体验愉快问购元件!
恩XP
22+
54SOICWEP
9000
原厂渠道,现货配单
恩XP
25+
54-SOIC-EP
9350
独立分销商 公司只做原装 诚心经营 免费试样正品保证
MOT
24+
原厂封装
65250
支持样品,原装现货,提供技术支持!
恩XP
25+
电联咨询
7800
公司现货,提供拆样技术支持
恩XP
24+
54-SOICW-EP
66800
原厂授权一级代理,专注汽车、医疗、工业、新能源!
MOTOROLA
25+
SOP
3378
绝对原装公司现货供应!价格优势
24+
SMD16
3000
公司现货