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reference designTPS548D22

Texas Instruments TPS548D22

1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense

Overview

TopologyBuck Converter
Input voltage5-16 V
Switching frequency425-1050 kHz
Output 11 V / 40 A

Description

Comparing internally-compensated advanced current mode (ACM) with D-CAP3 controlThe 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).

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 CompensationAdaptive 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 Start-up SupportEco-mode™ and FCCM SelectableFull Suite of Fault Protection and PGOOD

Typical applications

  • Industrial PCs, Automation, ATE, PLC, Video
  • Enterprise Storage, SSD, NAS / Wireless and Wired Communication Infrastructure / Enterprise Server, Switches, Routers

More information

Parts approved by Texas Instruments

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Product series
L(nH)
LR(nH)
IR(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
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744309025
SPECWE-HCM SMT High Current Flat Wire Inductor, 250 nH, 245 nH

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance250 nH
Rated Inductance245 nH
Rated Current47.5 A
Saturation Current @ 10%75.6 A
Saturation Current @ 30%88.5 A
DC Resistance0.165 mΩ
Self Resonant Frequency37 MHz
MaterialMnZn 
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