Texas Instruments TPS548D21

Description

The TPS548D21 device is a compact single buckconverter with adaptive on-time, D-CAP3 modecontrol. It is designed for high accuracy, highefficiency, fast transient response, ease-of-use, lowexternal component count and space-consciouspower systems.This device features full differential sense, TIintegrated FETs with a high-side on-resistance of2.9 mΩ and a low-side on-resistance of 1.2 mΩ. Thedevice also features accurate 0.5%, 0.9-V referencewith an ambient temperature range between –40°Cand 125°C. Competitive features include: very lowexternal component count, accurate load regulationand line regulation, FCCM mode operation, andinternal soft-start control.

Features

Conversion Input Voltage Range (PVIN): 1.5 V to 16 VInput Bias Voltage (VDD) Range: 4.5 V to 22 VOutput Voltage Range: 0.6 V to 5.5 VIntegrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs with 40-A Continuous Output CurrentVoltage Reference 0.6 V to 1.2 V in 50 mV Steps Using VSEL Pin±0.5%, 0.9-VREF Tolerance Range: –40°C to 125°C Junction TemperatureTrue Differential Remote Sense AmplifierD-CAP3 Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External CompensationAnalog AVS Optimization via REFIN_TRK PinAdaptive On-Time Control with 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz, and 1.05 MHzTemperature Compensated and Programmable Current Limit with RILIM and OC ClampChoice of Hiccup or Latch-Off OVP or UVPVDD UVLO External Adjustment by Precision EN HysteresisPrebias Startup SupportFCCM Mode During All OperationFull Suite of Fault Protection and PGOOD5 mm × 7 mm × 1.5 mm, 40-Pin, Stack Clipped LQFN-CLIP Package

More information

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