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TPS54527

ACTIVE

4.5V to 18V Input, 5-A Synchronous Step-Down Converter

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Data sheet

TPS54527

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 6 Iq (typ) (µA) 900 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 6 Iq (typ) (µA) 900 Duty cycle (max) (%) 85
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 6 V
  • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications: 65 mΩ (High Side) and 36 mΩ (Low Side)
  • High Efficiency: Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Prebiased Soft Start
  • 650-kHz Switching Frequency
  • Cycle-by-Cycle Overcurrent Limit
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 6 V
  • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications: 65 mΩ (High Side) and 36 mΩ (Low Side)
  • High Efficiency: Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Prebiased Soft Start
  • 650-kHz Switching Frequency
  • Cycle-by-Cycle Overcurrent Limit

The TPS54527 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54527 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54527 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54527 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from a 4.5-V to 18-V input. The output voltage can be programmed from 0.76 V to 6 V. The device also features an adjustable soft-start time. The TPS54527 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

The TPS54527 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54527 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54527 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54527 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from a 4.5-V to 18-V input. The output voltage can be programmed from 0.76 V to 6 V. The device also features an adjustable soft-start time. The TPS54527 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
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Technical documentation

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Type Title Date
* Data sheet TPS54527 4.5-V to 18-V Input, 5-A Synchronous Step-Down Converter datasheet (Rev. D) PDF | HTML 25 Aug 2016
EVM User's guide TPS54527 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 25 Aug 2021
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Optimize Output Filter on D-CAP2 for Stability Improvement 13 Jun 2017
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 02 Jan 2013

Design & development

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Evaluation board

TPS54527EVM-052 — Evaluation Module for TPS54527 Synchronous Step-Down Converter with D-CAP2 Mode

The TPS54527EVM-052 evaluation module is a fully assembled and tested circuit for evaluating the TPS54527 synchronous step-down DC/DC converter. The TPS54527EVM-052 operates from a 4.5-V to 18-V supply and provides a 1.05-V output up to 5-A load. The main control loop of TPS54527 uses D-CAP2™ (...)

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HSOIC (DDA) 8 Ultra Librarian
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