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LM5145RGYR

20 Terminals 6V~75V 20-Pin LM5145 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 100kHz~1MHz Transistor Driver

Manufacturer: Texas Instruments
Origchip NO: 815-LM5145RGYR
Package: 20-VFQFN Exposed Pad
Datasheet: PDF
Stock: 314
Description: 20 Terminals 6V~75V 20-Pin LM5145 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs 100kHz~1MHz Transistor Driver (Kg)

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Details

Tags

Parameters
Number of Pins	20
Operating Temperature	-40°C~125°C TJ
Packaging	Tape & Reel (TR)
JESD-609 Code	e3
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	2 (1 Year)
Number of Terminations	20
Terminal Finish	Matte Tin (Sn)
Additional Feature	ADJUSTABLE OUTPUT VOLATGE RANGE FROM 0.8 TO 60V
Terminal Position	QUAD
Terminal Form	NO LEAD
Base Part Number	LM5145
Function	Step-Down
Number of Outputs	1
Output Type	Transistor Driver
Input Voltage-Nom	48V
Analog IC - Other Type	SWITCHING CONTROLLER
Output Configuration	Positive
Voltage - Supply (Vcc/Vdd)	6V~75V
Control Features	Enable, Frequency Control, Power Good, Soft Start
Input Voltage (Min)	6V
Topology	Buck
Control Mode	VOLTAGE-MODE
Frequency - Switching	100kHz~1MHz
Input Voltage (Max)	75V
Control Technique	PULSE WIDTH MODULATION
Synchronous Rectifier	Yes
Duty Cycle (Max)	100%
Height	1mm
Length	4.5mm
Width	3.5mm
Thickness	900μm
RoHS Status	ROHS3 Compliant
Factory Lead Time	6 Weeks
Lifecycle Status	ACTIVE (Last Updated: 3 days ago)
Mounting Type	Surface Mount, Wettable Flank
Package / Case	20-VFQFN Exposed Pad
Surface Mount	YES

LM5145RGYR Description

The LM5145RGYR 75-V synchronous buck controller regulates from a high input voltage source or a high voltage transient-prone input rail, reducing the need for external surge suppression components. Large step-down ratios are enabled by a high-side switch minimum on-time of 40 ns, allowing direct step-down conversion from a 48-V nominal input to low-voltage rails for decreased system complexity and solution cost. The LM5145RGYR continues to run at nearly 100% duty cycle with input voltage dips as low as 6 V, making it a perfect choice for high-performance industrial control, robotics, datacom, and RF power applications.

LM5145RGYR Features

Soft start with adjustable output voltage

Overcurrent protection in hiccup mode

UVLO with hysteresis as input

UVLO protection with VCC and gate-drive

For sequencing and control, a precision enable input and an open-drain PGOOD indication are used.

LM5145RGYR Applications

? BTS and remote radio unit (RRU)

? Computing and networking power

? IP and PoE cameras that aren't separated

? Drives for industrial motors