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TPS563240

ACTIVE

17-V, 3-A, 1.4-MHz synchronous step-down voltage regulator

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Data sheet

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NEW TPS562243 ACTIVE 4.2V to 17V input voltage, 2A, 1.2MHz synchronous buck converter in SOT563 with Eco-mode Lower current part and slightly lower switching frequency in a smaller package

TPS563240

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Features Light Load Efficiency, Soft Start Fixed Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 260 Duty cycle (max) (%) 80
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Features Light Load Efficiency, Soft Start Fixed Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 260 Duty cycle (max) (%) 80
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • 3-A converter integrated 70-mΩ and 30-mΩ FETs, support 3.5-A transient
  • D-CAP3™ mode control with fast transient response
  • Input voltage range: 4.5 V to 17 V
  • Output voltage range: 0.6 V to 7 V
  • Pulse-skip mode during light load operation without going below 25-kHz switching frequency
  • 1.4-MHz switching frequency
  • Low shutdown current less than 10 µA
  • 1% feedback voltage accuracy (25 ºC)
  • Startup from pre-biased output voltage
  • Cycle-by-cycle overcurrent limit
  • Hiccup-mode overcurrent protection
  • Non-latch UVP and TSD protections
  • Fixed soft start: 1.7 ms
  • 3-A converter integrated 70-mΩ and 30-mΩ FETs, support 3.5-A transient
  • D-CAP3™ mode control with fast transient response
  • Input voltage range: 4.5 V to 17 V
  • Output voltage range: 0.6 V to 7 V
  • Pulse-skip mode during light load operation without going below 25-kHz switching frequency
  • 1.4-MHz switching frequency
  • Low shutdown current less than 10 µA
  • 1% feedback voltage accuracy (25 ºC)
  • Startup from pre-biased output voltage
  • Cycle-by-cycle overcurrent limit
  • Hiccup-mode overcurrent protection
  • Non-latch UVP and TSD protections
  • Fixed soft start: 1.7 ms

The TPS563240 is a simple, easy-to-use, 3-A synchronous step-down regulator in SOT-23 package. The peak transient output current can be 3.5 A.

The devices are optimized to operate with minimum external component counts and also optimized to achieve low standby current.

This switching regulator employs D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

TPS563240 operates in pulse skip mode, which maintains high efficiency during light load operation. The TPS563240 maintain Fsw over 25-kHz under light load condition. The TPS563240 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and specified from a –40°C to 125°C junction temperature.

The TPS563240 is a simple, easy-to-use, 3-A synchronous step-down regulator in SOT-23 package. The peak transient output current can be 3.5 A.

The devices are optimized to operate with minimum external component counts and also optimized to achieve low standby current.

This switching regulator employs D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

TPS563240 operates in pulse skip mode, which maintains high efficiency during light load operation. The TPS563240 maintain Fsw over 25-kHz under light load condition. The TPS563240 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and specified from a –40°C to 125°C junction temperature.
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Technical documentation

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Type Title Date
* Data sheet TPS563240 17-V, 3-A 1.4-MHz Synchronous Step-Down Voltage Regulator datasheet (Rev. A) PDF | HTML 26 Jul 2019
EVM User's guide TPS563249 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 06 Jul 2021
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
Technical article Understanding and managing buck regulator output ripple PDF | HTML 18 Jun 2020
Technical article Keeping DC/DC solutions (super) simple for cost-sensitive applications PDF | HTML 18 Oct 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS563249EVM-031 — 3-A, regulator evaluation module

The TPS563249 is a simple, easy-to-use, 3-A synchronous step-down converter in SOT-23 package. The device is optimized to operate with minimum external component counts and also optimized to achieve low standby current. This switch mode power supply (SMPS) device employs D-CAP2 mode control (...)

User guide: PDF | HTML
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Simulation model

TPS563240 PSpice Transient Model

SLVMCY7.ZIP (92 KB) - PSpice Model
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SOT-23-THN (DDC) 6 Ultra Librarian
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