IC reference design search
IC manufacturers Texas Instruments

IC manufacturers (108)

reference designTPS548D21

Texas Instruments TPS548D21

1.5V to 16V Input, 40A SWIFT Synchronous Step-Down Converter with AVSO and Full Differential

Overview

TopologyBuck Converter
Input voltage1.5-16 V
Switching frequency1250 kHz
Output 140 V / 40 A

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

Parts approved by Texas Instruments

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(nH)
LR(nH)
IR(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
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.

Simu­lation
Availability
–
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 
–Check availability