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See Technical Specifications

LM5085MY/NOPB +BOM

4.5-75V Wide Vin, Constant On-Time Non-Synchronous PFET Buck Controller

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM5085MY/NOPB
Datasheet:

LM5085MY/NOPB Datasheet (PDF)
Vin (min) (V):

4.5
Vin (max) (V):

75
Vout (min) (V):

1.25
Vout (max) (V):

75
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LM5085MY/NOPB General Description

The LM5085MY/NOPB's ability to handle input voltages from 4.5V to 75V make it a versatile choice for a variety of power management applications. Its programmable peak current limit and wide switching frequency range offer flexibility and optimization, while the integrated gate drivers and precision reference voltage ensure efficient and accurate power management. The compact 10-pin VSSOP package makes it ideal for space-constrained designs, and the inclusion of overvoltage protection and thermal shutdown features enhances system reliability in demanding environments

Key Features

High-efficiency DC-DC conversion
Compact design for space-constrained applications

Application

Automotive power systems
Networking equipment
Smartphone batteries

Specifications

Vin (min) (V)	4.5	Vin (max) (V)	75
Vout (min) (V)	1.25	Vout (max) (V)	75
Iout (max) (A)	10	Iq (typ) (mA)	1.3
Switching frequency (min) (kHz)	50	Switching frequency (max) (kHz)	1000
Features	Adjustable current limit, Enable, Frequency synchronization	Operating temperature range (°C)	-40 to 125
Regulated outputs (#)	1	Number of phases	1
Rating	Catalog	Control mode	Constant on-time (COT)
Type	Controller	feature-topology	Step Down
feature-number-of-outputs	1	feature-output-voltage-v	1.25 to 75
feature-minimum-output-current-a		feature-maximum-output-current-a	10
feature-minimum-input-voltage-v	4.5	feature-maximum-switching-frequency-khz	1000
feature-maximum-input-voltage-v	75	feature-operating-supply-voltage-v	4.5 to 75
feature-maximum-supply-current-ma	1.3(Typ)	feature-maximum-power-dissipation-mw
feature-minimum-switching-frequency-khz		feature-synchronous-rectifier
feature-synchronous-clock		feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	8
feature-cecc-qualified	No	feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No

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Ratings and Reviews

S**a 01/15/2023

Each board is packed in an antistatic bag. That's where all the joys end. Resistors-terminators at 120 ohms are soldered, but not connected. To connect, you need to solder a long enough jumper. Could on the board make two nearby standing contact areas for easy connection of resistors. Next, the most interesting: the inputs max490 from the uart side are connected leds through resistors. Just so, directly, without transistors. So i could not understand for a short time why there is no data transmission, although the led blinked. It turned out that the signal from the microcontroller on the tx line was planted with a led and not perceived max490, so i had to remove the resistor connecting the led. After that, everything worked fine.