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TPS54229

ACTIVE

4.5V to 18V Input, 2-A Synchronous Step-Down Converter

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Data sheet

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TPS562211 ACTIVE 4.2-V to 18-V, 2-A, synchronous buck converter with 1% accuracy, PG/SS and PFM/forced-PWM in SOT583 This product has improved performance, selectable power good or soft start feature

TPS54229

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 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) 7 Iq (typ) (µA) 800 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 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) 7 Iq (typ) (µA) 800 Duty cycle (max) (%) 90
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 VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 160 mΩ (High Side) and 110 mΩ (Low Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 160 mΩ (High Side) and 110 mΩ (Low Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit

The TPS54229 is an adaptive on-time D-CAP2 mode synchronous buck converter. TheTPS54229 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 TPS54229 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54229 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 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54229 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

The TPS54229 is an adaptive on-time D-CAP2 mode synchronous buck converter. TheTPS54229 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 TPS54229 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54229 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 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54229 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
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TPS54229E ACTIVE 4.5V to 18V Input, 2-A Synchronous Step-Down Converter with Eco-Mode This product has Eco-mode™ operation.
TPS54239 ACTIVE 4.5V to 23V Input, 2A Synchronous Step-Down Converter with D-CAP2 Mode This product has higher input voltage (23 V).
TPS54329 ACTIVE 4.5V to 18V Input, 3A Synchronous Step-Down Converter with D-CAP2 Mode Pin-to-pin compatible high-current product (3 A).
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NEW TPS562206 ACTIVE 4.2-V to 17-V input, 2-A synchronous buck converter in SOT563 with FCCM mode This product has a smaller package with less external component count
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Technical documentation

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Type Title Date
* Data sheet 4.5-V to 18-V Input, 2-A Synchronous Step Down Converter With Integrated FET datasheet (Rev. A) 23 Mar 2012
User guide TPS54229 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 26 Oct 2021
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 02 Jan 2013

Design & development

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

Evaluation board

TPS54229EVM-056 — TPS54229 Synchronous Step-Down DCAP2 Mode Converter Evaluation Module

The TPS54229EVM-056 Evaluation Module (EVM) is a fully assembled and tested circuit for evaluating the TPS54229 Synchronous Step-Down SWIFT Converter. The EVM operates from a 4.5V to 18V input and provides a 1.05V output at 2A.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS54229 TINA-TI Transient Reference Design

SLVM708.TSC (801 KB) - TINA-TI Reference Design
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Simulation model

TPS54229 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM415A.ZIP (43 KB) - PSpice Model
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HSOIC (DDA) 8 Ultra Librarian
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