MC33998数据手册恩XP中文资料规格书

描述 Description

Overview The 33998 is a multiple output, medium power, integrated supply operating from a 6.0 to 26.5 V input source. A 5.0 V output is provided by a sensorless current mode step-down switching supply. A 2.6 V output is provided by a linear regulator using an external pass transistor. An additional 2.6 V output is provided for standby use along with two internally protected low RDS(on) LDMOS 5.0 V outputs for sensor use. Separate Enable inputs provide main and sensor supply output control with reset and power-on reset delay. The 33998 provides power supply sequencing for advanced microprocessor architectures such as the NXP® Semiconductors MPC5xx and 683xx microprocessor families.
 
***** NOT RECOMMENDED FOR NEW DESIGN *****
MC33998 removed from active portfolio. Possible Replacement Part:  None
Archived content is no longer updated and is made available for historical reference only.

特性 Features

•Step-down switching regulator output VDDH = 5.0 V @ 1400 mA utilizing sensorless current mode control with soft start
•Linear regulator with external pass transistor VDDL = 2.6 V
•Low power standby linear regulator VKAM = 2.6 V @ 10 mA
•Two sensor supplies protected against short-to-battery and short-to-ground
•Reset signals, Power-On Reset Delay
•Enable pin for main supplies, EN pin
•Enable pin for sensor supplies, SNSEN pin
•Power sequencing for advanced microprocessor architectures