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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 20 Vout (Min) (V) 13.25 Vout (Max) (V) 18.4 Switch current limit (Typ) (A) 3 Regulated outputs (#) 1 Features Adjustable Current Limit, I2C, Power Good Operating temperature range (C) -40 to 125 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

WQFN (RUK) 20 9 mm² 3 x 3 open-in-new Find other Boost converters (integrated switch)

Features

  • Complete integrate solution for LNB and I2C interface
  • DiSEqC 2.x, and DiSEqC 1.x compatible
  • Supports 5-V, 12-V, and 15-V power rail
  • Up to 1000-mA accurate output current limit adjustable by external resistor
  • Boost switch peak current limit proportional to LDO current limit
  • Boost converter with 140-mΩ low Rds(on) internal power switch
  • Boost switching frequency 1-MHz or 500-kHz selectable
  • Audible noise avoided at Forced PWM mode
  • Dedicated enable pin for non-I2C application
  • Low-dropout (LDO) regulator with push-pull output stage for VLNB output
  • Built-in accurate 22-kHz tone generator and external tone input support
  • Supports both external 44-kHz and 22-kHz tone input
  • Adjustable soft-start and 13-V to 18-V voltage transition time
  • 650-mV to 750-mV 22-kHz tone amplitude selection
  • Selectable over current time 29 ms / 58 ms
  • I2C registers accessible with EN low
  • Short circuit dynamic protection
  • Diagnostics for output voltage level, DiSEqC tone input and output, current level, and cable connection
  • Thermal protection available
  • 20-Pin WQFN 3 mm × 3 mm (RUK) package

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Description

Designed for analog and digital satellite receivers, the TPS652353 is a monolithic voltage regulator with I2C interface; specifically to provide the 13-V to 18-V power supply and the 22-kHz tone signal to the LNB down converter in the antenna dish or to the multi-switch box. The device offers a complete solution with minimum component count, low power dissipation together with simple design and I2C standard interface.

The TPS652353 features high power efficiency. The boost converter integrates a 140-mΩ power MOSFET running at 1 MHz or 500 kHz selectable switching frequency. Drop out voltage at the linear regulator is 0.8 V to minimize power loss. The TPS652353 provides multiple ways to generate the 22 kHz signal. Integrated linear regulator with push-pull output stage generates 22-kHz tone signal superimposed at the output even at zero loading. Current limit of linear regulator can be programmed by external resistor with ±10% accuracy. Full range of diagnostic read by I2C is available for system monitoring.

The TPS652353 has a special design at Forced PWM mode to avoid the audible noise especially when VIN is higher or closer to the VLNB output.

The TPS652353 supports advanced DiSEqC 2.x standard with 22-kHz tone detection circuit and output interface.

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Technical documentation

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Type Title Date
* Datasheet TPS652353 LNB Voltage Regulator With I2C Interface datasheet (Rev. A) Dec. 10, 2019

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
49
Description
The TPS65235-1EVM-694 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65235-1 for DisEqC2.x applications. The EVM contains input and output connectors as well as control jumpers to easily evaluate the device features. Compared with TPS65235-1EVM-747, the (...)
Features
  • Supports  5 V, 12 V and 15 V  power bus
  • Up to 1000 mA accurate output current limit adjustable by external resistor
  • Boost switch peak current limit proportional to LDO current limit
  • Boost switching frequency 1MHz/500KHz selectable


EVALUATION BOARDS Download
document-generic User guide
49
Description
The TPS65235EVM-694 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65235 for DisEqC2.x application. The EVM contains input and output connectors as well as control jumpers to easily evaluate the device features. Compared with TPS65235EVM-747, the (...)
Features
  • Supports  5 V, 12 V and 15 V  power bus
  • Up to 1000 mA accurate output current limit adjustable by external resistor
  • Boost switch peak current limit proportional to LDO current limit
  • Dedicated Enable Pin for Non-I2C Application
  • Boost switching frequency 1MHz/500KHz selectable
EVALUATION BOARDS Download
document-generic User guide
49
Description

The TPS65235EVM-PWR747 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65235 for DisEqC1.x application. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features. The TPS65235 is a monolithic voltage regulator (...)

Features
  • Supports 5 V, 12 V and 15 V power bus
  • Up to 1000 mA accurate output current limit adjustable by external resistor
  • Boost switch peak current limit proportional to LDO current limit
  • Dedicated Enable Pin for Non-I2C Application
  • Boost switching frequency 1MHz/500KHz selectable

Design tools & simulation

SIMULATION MODELS Download
SLVMD80.ZIP (584 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
WQFN (RUK) 20 View options

Ordering & quality

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