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LM5085MME +BOM

LM5085MME from Texas Instruments is a DC/DC controller designed for 4.5V to 75V input voltage range

Manufacturer:

texas instruments
Mfr.Part #:

LM5085MME
Datasheet:

LM5085MME Datasheet (PDF)
Number Of Outputs:

1 Output
Switching Frequency:

1 MHz
Input Voltage:

4.5 V to 75 V
Output Voltage:

1.25 V to 75 V
EDA/CAD Models:

Request Free CAD Models for LM5085MME

LM5085MME General Description

Description for the LM5085The LM5085 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, efficient buck regulator for a wide range of applications. This high voltage controller contains a PFET gate driver and a high voltage bias regulator which operates over a wide 4.5-V to 75-V input range. The constant on-time regulation principle requires no loop compensation, simplifies circuit implementation, and results in ultrafast load transient response. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The PFET architecture allows 100% duty cycle operation for a low dropout voltage. Either the RDS(ON) of the PFET or an external sense resistor can be used to sense current for over-current detection.

Key Features

Features for the LM5085

LM5085-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to 125°C Operating Junction Temperature)
Wide 4.5-V to 75-V Input Voltage Range
Adjustable Current Limit Using R_DS(ON) or a Current Sense Resistor
Programmable Switching Frequency to 1MHz
No Loop Compensation Required
Ultra-Fast Transient Response
Nearly Constant Operating Frequency with Line and Load Variations
Adjustable Output Voltage from 1.25 V
Precision ±2% Feedback Reference
Capable of 100% Duty Cycle Operation
Internal Soft-start Timer
Integrated High Voltage Bias Regulator
Thermal Shutdown
Package:
- HVSSOP-8
- VSSOP-8
- WSON-8

Specifications

Product Category	Switching Controllers	Number of Outputs	1 Output
Switching Frequency	1 MHz	Input Voltage	4.5 V to 75 V
Output Voltage	1.25 V to 75 V	Output Current	1.75 A
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 125 C
Mounting Style	SMD/SMT	Product Type	Switching Controllers
Subcategory	PMIC - Power Management ICs	Type	Buck Controller
Unit Weight	0.001058 oz