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TPS65263-Q1

ACTIVE

4.0V-18V Vin, 3A/2A/2A Triple Synchronous Buck Converter with I2C Controlled Dynamic Voltage Scaling

Product details

Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.6 Vout (max) (V) 16 Iout (max) (A) 3 Iq (typ) (mA) 0.6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2300 Features Adaptive/Dynamic Voltage Scaling, Enable, Frequency synchronization, Light Load Efficiency, Phase Interleaving, Power good, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Automotive Regulated outputs (#) 3 Control mode current mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 4 Vin (max) (V) 18 Vout (min) (V) 0.6 Vout (max) (V) 16 Iout (max) (A) 3 Iq (typ) (mA) 0.6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2300 Features Adaptive/Dynamic Voltage Scaling, Enable, Frequency synchronization, Light Load Efficiency, Phase Interleaving, Power good, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Automotive Regulated outputs (#) 3 Control mode current mode Duty cycle (max) (%) 100 Type Converter
VQFN (RHB) 32 25 mm² 5 x 5
  • Qualified for automotive applications
  • AEC-Q100 qualification with the following results:
    • Device temperature grade 1: –40°C to 125°C operating junction temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C4B
  • Operating input voltage range 4.0-V to 18-V maximum continuous output current 3 A/2 A/2 A
  • I 2C controlled 7-bits VID programmable output voltage from 0.68 to 1.95 V With 10-mV voltage step for Buck2
  • I 2C controlled VID voltage transition slew rate for Buck2
  • I 2C read back power-good status, overcurrent warning and die temperature warning
  • I 2C compatible interface with standard mode (100 kHz) and fast mode (400 kHz)
  • Feedback reference voltage 0.6 V ±1%
  • Adjustable clock frequency from 200 kHz to 2.3 MHz
  • External clock synchronization
  • Dedicated enable and soft-start pins for each buck
  • Output voltage power-good indicator
  • Thermal overloading protection
  • Qualified for automotive applications
  • AEC-Q100 qualification with the following results:
    • Device temperature grade 1: –40°C to 125°C operating junction temperature range
    • Device HBM ESD classification level H2
    • Device CDM ESD classification level C4B
  • Operating input voltage range 4.0-V to 18-V maximum continuous output current 3 A/2 A/2 A
  • I 2C controlled 7-bits VID programmable output voltage from 0.68 to 1.95 V With 10-mV voltage step for Buck2
  • I 2C controlled VID voltage transition slew rate for Buck2
  • I 2C read back power-good status, overcurrent warning and die temperature warning
  • I 2C compatible interface with standard mode (100 kHz) and fast mode (400 kHz)
  • Feedback reference voltage 0.6 V ±1%
  • Adjustable clock frequency from 200 kHz to 2.3 MHz
  • External clock synchronization
  • Dedicated enable and soft-start pins for each buck
  • Output voltage power-good indicator
  • Thermal overloading protection

The TPS65263-Q1 incorporates triple-synchronous buck converters with 4.0- to 18-V wide input voltage. The converter with constant frequency peak current mode is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters is adjustable from 200 kHz to 2.3 MHz with an external resistor. 180° out-of-phase operation between buck1 and buck2, buck3 (buck2 and buck3 run in phase) minimizes the input filter requirements.

The initial start-up voltage of each buck can be set with external feedback resistors. The output voltage of buck2 can be dynamically scaled from 0.68 to 1.95 V in 10-mV steps with I 2C-controlled 7 bits VID. The VID voltage transition slew rate is programmable with 3-bits control through I 2C bus to optimize overshoot/undershoot during VID voltage transition.

Each buck in TPS65263-Q1 can be I 2C controlled for enabling/disabling output voltage, setting the pulse skipping mode (PSM) or forced continuous current (FCC) mode at light load condition and reading the power-good status, overcurrent warning, and die temperature warning.

The TPS65263-Q1 features overvoltage, overcurrent, short-circuit, and overtemperature protection.

The TPS65263-Q1 incorporates triple-synchronous buck converters with 4.0- to 18-V wide input voltage. The converter with constant frequency peak current mode is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters is adjustable from 200 kHz to 2.3 MHz with an external resistor. 180° out-of-phase operation between buck1 and buck2, buck3 (buck2 and buck3 run in phase) minimizes the input filter requirements.

The initial start-up voltage of each buck can be set with external feedback resistors. The output voltage of buck2 can be dynamically scaled from 0.68 to 1.95 V in 10-mV steps with I 2C-controlled 7 bits VID. The VID voltage transition slew rate is programmable with 3-bits control through I 2C bus to optimize overshoot/undershoot during VID voltage transition.

Each buck in TPS65263-Q1 can be I 2C controlled for enabling/disabling output voltage, setting the pulse skipping mode (PSM) or forced continuous current (FCC) mode at light load condition and reading the power-good status, overcurrent warning, and die temperature warning.

The TPS65263-Q1 features overvoltage, overcurrent, short-circuit, and overtemperature protection.

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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.

Evaluation board

TPS65263EVM-645 — TPS65263EVM Evaluation Module

The TPS65263EVM-645 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65263. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.

User guide: PDF
Not available on TI.com
Simulation model

TPS65263 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAA8A.ZIP (53 KB) - PSpice Model
Simulation model

TPS65263-Q1 Unencrypted PSpice Average Model Package (Rev. A)

SLVMAL4A.ZIP (70 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Reference designs

TIDA-01413 — ADAS 8-Channel Sensor Fusion Hub Reference Design with Two 4-Gbps Quad Deserializers

This sensor fusion hub reference design allows the connection of up to four 2-megapixel cameras and up to four radar modules over coaxial cable. This design utilizes these coaxial cables to provide power, backchannel communication, and clock synchronization to the sensors. The two 4 Gbps FPD-Link (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP10851 — Three Output Synchronous Buck Converter for Automotive Radio Tuner Reference Design

This design, incorporating the TPS65263, is a three output Synchronous Buck Converter intended for automotive radio tuners. The input voltage range is 6.5V to 16V, with all outputs designed up to 1A.
Test report: PDF
Schematic: PDF
Package Pins Download
VQFN (RHB) 32 View options

Ordering & quality

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