TPS63020-Q1

TPS6302x High Efficiency Single Inductor Buck-boost Converter with 4-A Switches

Manufacturer

Texas Instruments

Category

Integrated Circuits (ICs)

Overview

Part: TPS6302x from Texas Instruments

Type: High Efficiency Single Inductor Buck-boost Converter

Key Specs:

  • Input voltage range: 1.8 V to 5.5 V
  • Adjustable output voltage: 1.2 V to 5.5 V
  • Output current for VIN > 2.5 V, VOUT = 3.3 V: 2 A
  • Operating quiescent current: 25 μA
  • Fixed frequency operation: 2.4 MHz
  • Maximum average switch current: 4 A

Features:

  • High efficiency over the entire load range
  • Power save mode with mode selection
  • Average current mode buck-boost architecture
  • Automatic transition between modes
  • Synchronization possible
  • Power good output
  • Overtemperature, overvoltage protection
  • Load disconnect during shutdown
  • Create a custom design using WEBENCH Power Designer

Applications:

  • Pre-regulation in battery-powered devices: EPOS (portable data terminal, barcode scanner), e-cigarette, single board computer, IP network camera, video doorbell, land mobile radios
  • Voltage stabilizer: wired communication, wireless communication, PLC, optical module
  • Backup supercapacitor supply: electricity meter, solid state drive (SSD) - enterprise

Package:

  • VSON (14-pin): 3 mm × 4 mm

Features

  • 1• Input voltage range: 1.8 V to 5.5 V
  • Adjustable output voltage: 1.2 V to 5.5 V
  • Output current for VIN > 2.5 V, VOUT = 3.3 V: 2 A
  • High efficiency over the entire load range
    • Operating quiescent current: 25 μA
    • Power save mode with mode selection
  • Average current mode buck-boost architecture
    • Automatic transition between modes
    • Fixed frequency operation at 2.4 MHz
    • Synchronization possible
  • Power good output
  • Safety and robust operation features
    • Overtemperature, overvoltage protection
    • Load disconnect during shutdown
  • Create a custom design using the
    • TPS63020 with WEBENCH Power Designer
    • TPS63021 with WEBENCH Power Designer

Applications

SPACE

space

1

Simplified Schematic

Pin Configuration

Pin Functions

  • NAME
  • EN
  • FB
  • GND
  • L1
  • L2
  • PG
  • PGND
  • PS/SYNC
  • VIN
  • VINA
  • VOUT
  • Exposed
    Thermal Pad

4

Electrical Characteristics

over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted)

PARAMETERTEST CONDITIONSMINTYPMAXUNIT
DC/DC STAGE
Input voltage1.85.5V
VINMinimum input voltage for start-up0°C ≤ TA ≤ 85°C1.51.81.9V
Minimum input voltage for start-up1.51.82.0V
TPS63020 output voltage1.25.5V
VOUTDuty cycle in step down conversion20%
TPS63020 feedback voltage495500505mV
VFB_PWMTPS63021 output voltagePS/SYNC = VIN3.2673.33.333V
VFB_PSMaximum line regulation
Maximum load regulation		TPS63020 feedback voltage / TPS63021 output
voltage regulation in PS mode		PS/SYNC = GND; referenced to
VFB_PWM		0.6%0.5%
0.5%		5%
fOscillator frequency220024002600kHz
Frequency range for synchronization220024002600kHz
ISWAverage switch current limitVIN = VINA = 3.6 V, TA = 25°C350040004500mA
High side switch on resistanceVIN = VINA = 3.6 V50mΩ
Low side switch on resistanceVIN = VINA = 3.6 V50mΩ
QuiescentVIN and VINAIOUT = 0 mA, VEN = VIN = VINA = 3.62550μA
IqcurrentVOUTV,
VOUT = 3.3 V		510μA
TPS63021 FB input impedanceVEN = HIGH1MΩ
ISShutdown currentVEN = 0 V, VIN = VINA = 3.6 V0.11μA
CONTROL STAGE
Under voltage lockout thresholdVINA voltage decreasing1.41.51.6V
UVLOUnder voltage lockout hysteresis200mV
VILEN, PS/SYNC input low voltage0.4V
VIHEN, PS/SYNC input high voltage1.2V
EN, PS/SYNC input currentClamped to GND or VINA0.010.1μA
PG output low voltageVOUT = 3.3 V, IPGL = 10 μA0.040.4V
PG output leakage current0.010.1μA
Output overvoltage protection
Overtemperature protection
Overtemperature hysteresis		5.5140
20		7V
°C
°C

6

Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)

MINMAXUNIT
VIN, VINA, VOUT, PS/SYNC, EN, FB, PG–0.37V
Voltage(2)L1, L2 (DC)–0.37V
L1, L2 (AC, less than 10 ns)(3)–310V
Operating junction temperature, TJ–40150°C
Storage temperature, Tstg–65150°C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods my affect device reliability.

(2) All voltages are with respect to network ground terminal.

(3) Normal switching operation

Recommended Operating Conditions

MINNOMMAXUNIT
Supply voltage at VIN, VINA1.85.5V
Operating free air temperature, TA–4085°C
Operating junction temperature, TJ–40125°C

Thermal Information

TPS6302xUNIT
THERMAL METRIC(1)DSJ (VSON)
14 PINS
RθJAJunction-to-ambient thermal resistance41.8°C/W
RθJC(top)Junction-to-case (top) thermal resistance47°C/W
RθJBJunction-to-board thermal resistance17°C/W
ψJTJunction-to-top characterization parameter0.9°C/W
ψJBJunction-to-board characterization parameter16.8°C/W
RθJC(bot)Junction-to-case (bottom) thermal resistance3.6°C/W

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.

SLVS916I –JULY 2010–REVISED OCTOBER 2019 www.ti.com

6.5 Electrical Characteristics

over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted)

PARAMETERTEST CONDITIONSMINTYPMAXUNIT
DC/DC STAGE
Input voltage1.85.5V
VINMinimum input voltage for start-up0°C ≤ TA ≤ 85°C1.51.81.9V
Minimum input voltage for start-up1.51.82.0V
TPS63020 output voltage1.25.5V
VOUTDuty cycle in step down conversion20%
TPS63020 feedback voltage495500505mV
VFB_PWMTPS63021 output voltagePS/SYNC = VIN3.2673.33.333V
VFB_PSMaximum line regulation
Maximum load regulation		TPS63020 feedback voltage / TPS63021 output
voltage regulation in PS mode		PS/SYNC = GND; referenced to
VFB_PWM		0.6%0.5%
0.5%		5%
fOscillator frequency220024002600kHz
Frequency range for synchronization220024002600kHz
ISWAverage switch current limitVIN = VINA = 3.6 V, TA = 25°C350040004500mA
High side switch on resistanceVIN = VINA = 3.6 V50mΩ
Low side switch on resistanceVIN = VINA = 3.6 V50mΩ
QuiescentVIN and VINAIOUT = 0 mA, VEN = VIN = VINA = 3.62550μA
IqcurrentVOUTV,
VOUT = 3.3 V		510μA
TPS63021 FB input impedanceVEN = HIGH1MΩ
ISShutdown currentVEN = 0 V, VIN = VINA = 3.6 V0.11μA
CONTROL STAGE
Under voltage lockout thresholdVINA voltage decreasing1.41.51.6V
UVLOUnder voltage lockout hysteresis200mV
VILEN, PS/SYNC input low voltage0.4V
VIHEN, PS/SYNC input high voltage1.2V
EN, PS/SYNC input currentClamped to GND or VINA0.010.1μA
PG output low voltageVOUT = 3.3 V, IPGL = 10 μA0.040.4V
PG output leakage current0.010.1μA
Output overvoltage protection
Overtemperature protection
Overtemperature hysteresis		5.5140
20		7V
°C
°C

6

6.6 Typical Characteristics

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
TPS63020Texas Instruments—
TPS63020DSJRTexas Instruments14-VFDFN Exposed Pad
TPS63020DSJR.ATexas Instruments—
TPS63020DSJR.BTexas Instruments—
TPS63020DSJTTexas Instruments—
TPS63020DSJT.ATexas Instruments—
TPS63020DSJT.BTexas Instruments—
Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Get structured datasheet data via API

Get started free