Texas Instruments LM25137F-Q1 | Demoboard LM25137F-Q1-EVM5D3

Description

The LM25137-Q1-EVM5D3 evaluation module (EVM) is designed to showcase the LM(2)5137-Q1 dual synchronous buck controller, which is intended for functional safety applications up to ASIL D or SIL 3. The EVM operates over a wide input voltage range of 6.5V to 36V to deliver 5V and 3.3V regulated outputs with better than 1% setpoint accuracy at load currents up to 20A per output.

Features

• Maximum inout voltage of 36V VIN UVLO thresholds set at 6.5V and 4.5V
• Tightly regulated output voltages of 5V and 3.3V, each rated at 20A with 1mV load/line regulation
• High efficiency – 96% at 10A, 94% at 20A
• VCC bias power derived from the 5V output
• Switching frequency of 440kHz synchronizable ±20% with an external clock signal
• Input π-stage EMI filter meets CISPR 25
• Spread spectrum (DRSS) option for lower EMI
• Electrolytic capacitor for parallel damping
• Peak current-mode control architecture provides fast line and load transient response
• Integrated slope compensation
• Forced PWM (FPWM) or pulsed frequency modulation (PFM) operation
• Integrated power MOSFET gate drivers
• 3A/2A sink/source gate drive current capability
• Adaptive dead-time control reduces power dissipation and MOSFET temperature rise
• Integrated protection features for robust design
• Overcurrent protection (OCP) with shunt or inductor DCR current sensing
• Monotonic prebias output voltage startup
• User-adjustable soft-start time set to 5ms
• PG and FAULT outputs for each channel
• Dual current monitor outputs (IMON1, IMON2)
• Fully assembled, tested and proven PCB layout with 3.3" × 2.9" (84mm × 74mm) total footprint

Typical applications

• Infotainment systems and instrument clusters, Automotive HEV/EV powertrain systems, High-current automotive electronic systems using 2-, 3- and 4-phase implementations, Dual outputs for ADAS and body electronics

More information

• Datasheet
• IC product information