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TPS541620

ACTIVE

4.5-V to 15-V, advanced current mode, dual 6-A synchronous SWIFT™ step-down converter

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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 15 Vout (Min) (V) 0.5 Vout (Max) (V) 6 Iout (Max) (A) 6 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 2000 Features Adjustable Current Limit, Enable, Frequency Synchronization, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 2 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN-HR (RPB) 25 15 mm² 5 x 3 open-in-new Find other Buck converters (integrated switch)

Features

  • Integrated 24-mΩ and 10-mΩ MOSFETs with lossless current sensing
  • Fixed-frequency, internally-compensated advanced current mode (ACM) control
  • Dual output with up to 6 A each output
  • Dual-phase, single output for up to 12 A
  • Phase interleaving operation for one or two phases
  • Synchronization to an external clock using SYNC and CLKO
  • 0.5-V to 5.5-V output voltage range
  • Four selectable PWM ramp options for each switching frequency to optimize control loop performance
  • Soft start time is configurable by an external cap in single-output, multi-phase configuration and is fixed at 1 ms for dual-output configuration
  • True differential remote sensing in multi-phase operation
  • Independent enable and power good
  • Four selectable switching frequency options of 500 kHz, 1 MHz, 1.5 MHz, and 2.0 MHz
  • Supports safe pre-biased start-up
  • Overtemperature protection with hysteresis
  • –40°C to 150°C operation junction temperature
  • 3-mm × 5-mm, 25-pin VQFN-HR package with 0.5-mm pitch
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Description

The TPS541620 is a highly integrated non-isolated dual DC-DC converter that is capable of high-frequency operation in a 3-mm × 5-mm package. The device can be configured as two single 6-A rails or combined to drive a single 12-A current load. The device implements a fixed-frequency advanced current mode control (ACM) with selectable ramp amplitude configurations to optimize the loop bandwidth. Two mode selection pins (MODE1 and 2) are used to select switching frequency, configuration, clock phase delay, and internal compensation.

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Technical documentation

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
Description
TPS541620DEVM-050 (6-A) and TPS541620SEVM-050 (12-A) are evaluation modules (EVM) for the TPS541620. The TPS541620 is a dual, internally compensated step-down converter.  The TPS541620 is 3-mm x 5-mm package with two outputs that can be configured as two single rails or combined to drive a (...)
Features
  • 4.5-V to 15-V input voltage, 12-V nominal
  • Fixed frequency ACM control
  • 500-kHz to 2000-kHz switching frequency (1000-kHz default setting)
  • TPS541620DEVM-050: dual output: 1 V at 6 A and 3.3 V at 6 A
  • TPS541620SEVM-050: 2-phase interleaved: 1 V at 12 A

Design tools & simulation

SIMULATION MODEL Download
SNVMC59.ZIP (2509 KB) - SIMPLIS Model
SIMULATION TOOL 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
VQFN-HR (RPB) 25 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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