LM5145 datasheet(10/70 Pages) TI

Part #	LM5145

Description	LM5148 80-V, Synchronous, Buck DC/DC Controller with Ultra-Low IQ and Dual Random Spread Spectrum

PDF	70 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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10 / 70 page

7.6 Typical Characteristics

VIN = 12 V, unless otherwise specified

Load Current (A)

100

VIN = 8 V

VIN = 12 V

VIN = 18 V

VIN = 24 V

VOUT = 5 V

FSW = 440 kHz

Figure 7-1. Efficiency vs Load

Load Current (A)

0.001

0.01

0.1

100

VIN = 8 V

VIN = 12 V

VIN = 18 V

VIN = 24 V

VOUT = 5 V

FSW = 440 kHz

Figure 7-2. Efficiency vs Load, Log Scale

Junction Temperature (

C)

-50

-25

100

125

150

VEN = 0 V

Figure 7-3. Shutdown Current vs Temperature

Junction Temperature (

C)

-50

-25

100

125

150

VVOUT = 3.3 V

1.03 V ≤ VEN ≤ 80 V

Figure 7-4. Sleep1 Current vs Temperature

Junction Temperature (

C)

-50

-25

100

125

150

VVOUT = 5 V

1.03 V ≤ VEN ≤ 80 V

Figure 7-5. Sleep2 Current vs Temperature

Figure 7-6. Fixed 3.3-V Output Voltage vs Temperature

LM5148

SNVSC01 – FEBRUARY 2023

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