Texas Instruments LM5140-Q1 | Demoboard LM5140RWGEVM

Description

The LM5140EVM evaluation module helps designers evaluate the operation and performance of theLM5140-Q1 Synchronous Buck Controller. The EVM operates over the input voltage range of 3.8 V to 42V. The EVM provides two independent outputs, a 3.3-V output with a maximum load current of 6 A, and a5-V output with a maximum load current of 5 A. The device offers configurability and can be set up toswitch at 440 kHz or 2.2 MHz.

Features

This EVM supports the following features and performance capabilities:

• The LM5140-Q1 is qualified to AEC-Q100 grade 1 (–40ºC to 125ºC operating junction temperature)
• VIN 3.8 to 42 V (EVM)
• Two outputs:– VOUT1 fixed 3.3 V, 5 V, or adjustable from 1.5 V–15 V– VOUT2 fixed 5 V, 8 V, or adjustable from 1.5 V–15 V
• Shutdown mode IQ: 9 μA
• Low IQ standby: 35-μA typical (1-channel in regulation, no load)
• The current-limit threshold of VOUT1 and VOUT2 can be externally programmed: 50 mV, or 75 mV
• The outputs can be synchronized to an external clock
• A SYNC output
• A fixed 2.2-MHz, or 440-kHz oscillator frequency
• EN1 enables output 1
• EN2 enables output 2
• Hiccup mode for sustained overload
• Independent power good (PG1 and PG2) signals
• Gate drive with slew rate control for reduced EMI
• Diode emulation or forced pulse-width modulation (FPWM

More information

• Datasheet
• IC product information