TPS548D22

• Conversion Input Voltage Range (PV_IN): 1.5 V to 16 V
• Input Bias Voltage (V_DD) Range: 4.5 V to 22 V
• Output Voltage Range: 0.6 V to 5.5 V
• Integrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs With 40-A Continuous Output Current
• Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
• ±0.5%, 0.9-V_REF Tolerance Range: –40°C to +125°C Junction Temperature
• True Differential Remote Sense Amplifier
• D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
• Adaptive On-Time Control with 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz, and 1.05 MHz
• Temperature Compensated and Programmable Current Limit with R_ILIM and OC Clamp
• Choice of Hiccup or Latch-Off OVP or UVP
• VDD UVLO External Adjustment by Precision EN Hysteresis
• Prebias Start-up Support
• Eco-mode™ and FCCM Selectable
• Full Suite of Fault Protection and PGOOD

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The TPS548D22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 2.9 mΩ and a low-side on-resistance of 1.2 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548D22 device is available in 7-mm × 5-mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).