TPS54429E

ACTIVE

7V to 18V Input, 4.5A Synchronous Step-Down DCAP2 Mode Converter with Eco-Mode

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Product details

Parameters

Vin (Min) (V) 7 Vin (Max) (V) 18 Vout (Min) (V) 0.76 Vout (Max) (V) 5.5 Iout (Max) (A) 4.5 Iq (Typ) (mA) 0.85 Switching frequency (Min) (kHz) 700 Switching frequency (Max) (kHz) 700 Features Enable, Light Load Efficiency, Power Good, Synchronous Rectification, Soft Start Adjustable Operating temperature range (C) -20 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

HTSSOP (PWP) 14 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4 open-in-new Find other Buck converters (integrated switch)

Features

  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 7 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized
    for Lower Duty Cycle Applications
    – 63 mΩ (High Side) and 55 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc™ Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

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Description

The TPS54429E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429E 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 TPS54429E uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54429E to maintain high efficiency during lighter load conditions. The TPS54429E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 7-V to 18-V VIN input. The output voltage can be programmed between 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54429E is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –20°C to 85°C.

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Same functionality and pinout but is not an equivalent to the compared device:
TPS54426 ACTIVE 4.5V to 18V Input, 4A Synchronous Step-Down Converter with Eco-Mode™ This product offers lower current (4 A).
TPS54526 ACTIVE 4.5V to 18V Input, 5.5A Synchronous Step-Down Converter with Eco-Mode™ This product offers higher current (5.5 A).
Similar but not functionally equivalent to the compared device:
TPS565201 ACTIVE 4.5V to 17V, 5A, Synchronous Step-Down Voltage Regulator in SOT23 Simplify design with minimum external component count.

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet 7V to 18V Input, 4.5-A Synchronous Step-Down SWIFTTM Converter with Eco-Mode™ datasheet Jan. 19, 2011
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- Jan. 02, 2013
User guides TPS54429EEVM-608, SWIFT(TM) Regulator Evaluation Module Mar. 21, 2011

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
25
Description
The TPS54429EEVM-608 is a fully assembled and tested circuit for evaluating the TPS54429E Synchronous Step-Down SWIFT Converter with Auto-Skip ECO-Mode. The TPS54429EEVM-608 operates from a 7V to 18V input and provides a 1.05V output at 4.5A.
Features
  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide Vin Input Voltage Range: 7V to 18V
  • Output Voltage Range: 0.76V to 5.5V
  • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications
  • High Efficiency, less than 10uA at shutdown
  • High (...)
DEVELOPMENT KITS Download
document-generic User guide
699
Description

The K2G Evaluation Module (EVM) enables developers to immediately start evaluating the 66AK2Gx - 600MHz processor, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive applications.  Similar to (...)

Features
  • 66AK2G02 C66x DSP+ARM A15 Processor at 600MHz
  • 2-GByte DDR3L with ECC
  • TPS659118 PMIC
  • Audio and Serial expansion headers
  • Processor SDK Linux and TI-RTOS support
  • Supports Gigabit Ethernet
DEVELOPMENT KITS Download
document-generic User guide
699
Description

The EVMK2GX (also known as "K2G") 1GHz Evaluation Module (EVM) enables developers to immediately start evaluating the 66AK2Gx processor family, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive (...)

Features
  • 66AK2G12 C66x DSP+ARM A15 Processor at 1GHz
  • 2-GByte DDR3L with ECC
  • TPS65911A PMIC
  • Audio and serial expansion headers
  • Processor SDK Linux and TI-RTOS support
DEVELOPMENT KITS Download
document-generic User guide
1049
Description

The K2G 1GHz High Secure Evaluation Module (EVM) enables developers to start  evaluating and testing the programming of the  high secure developmental version of the  66AK2Gx processor, and to accelerate the next stage of secure boot product development of audio and industrial real (...)

Features
  • 66AK2G12 C66x DSP+ARM A15 Processor at 1GHz
  • 2-GByte DDR3L with ECC
  • TPS65911A PMIC
  • Audio and serial expansion headers
  • Processor SDK Linux and TI-RTOS support

Design tools & simulation

SIMULATION MODELS Download
SLVM127A.ZIP (42 KB) - PSpice Model
SIMULATION MODELS Download
SLVM379.ZIP (41 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVM380.TSC (655 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 14 View options
QFN (RSA) 16 View options

Ordering & quality

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