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TPSM365R3

ACTIVE

3-V to 65-V input, 1-V to 13-V output, 0.3-A synchronous buck converter power module

Product details

Iout (max) (A) 0.3 Vin (min) (V) 3 Vin (max) (V) 65 Vout (min) (V) 1 Vout (max) (V) 13 EMI features Integrated capacitors, Low parasitic Hotrod packaging, Spread Spectrum Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Overcurrent protection, Power good, Spread Spectrum Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.004 Regulated outputs (#) 1 Switching frequency (max) (kHz) 2200 Switching frequency (min) (kHz) 200 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable Topology Buck, Synchronous Buck Type Module Rating Catalog
Iout (max) (A) 0.3 Vin (min) (V) 3 Vin (max) (V) 65 Vout (min) (V) 1 Vout (max) (V) 13 EMI features Integrated capacitors, Low parasitic Hotrod packaging, Spread Spectrum Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Overcurrent protection, Power good, Spread Spectrum Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.004 Regulated outputs (#) 1 Switching frequency (max) (kHz) 2200 Switching frequency (min) (kHz) 200 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable Topology Buck, Synchronous Buck Type Module Rating Catalog
QFN-FCMOD (RDN) 11 15.75 mm² 4.5 x 3.5
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC module:
    • Integrated MOSFETs, inductor, and controller
    • Wide input voltage range: 3 V to 65 V
    • Input transient up to 70 V
    • Junction temperature range –40°C to +125°C
    • 4.5-mm × 3.5-mm × 2-mm overmolded package
    • Frequency adjustable from 200 kHz to 2.2 MHz using the RT pin or an external SYNC signal
  • Ultra-high efficiency across the full load range:
    • Greater than 85% efficiency at 12 VIN, 3.3-VOUT
    • Greater than 85% efficiency at 24 VIN, 5-VOUT
    • Ultra-low operating quiescent current at no load: 4 µA at VIN = 24 V to 3.3-V VOUT
  • Optimized for ultra-low EMI requirements:
    • Pseudo-random spread spectrum reduces peak emissions
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • FSW synchronization with MODE/SYNC pin
    • CISPR11 class B capable
  • Output voltage and current options:
    • Fixed output variants of 3.3-V or 5-V VOUT
    • Adjustable output voltage from 1 V to 13 V
    • Pin compatible with TPSM33625
    • 600-mA output current (TPSM365R6)
    • 300-mA output current (TPSM365R3)
  • Inherent protection features for robust design
    • Precision enable input and open-drain PGOOD indicator for sequencing, control, and VIN UVLO
    • Overcurrent and thermal shutdown protections
  • Create a custom design using the TPSM365Rx with the WEBENCH® Power Designer
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC module:
    • Integrated MOSFETs, inductor, and controller
    • Wide input voltage range: 3 V to 65 V
    • Input transient up to 70 V
    • Junction temperature range –40°C to +125°C
    • 4.5-mm × 3.5-mm × 2-mm overmolded package
    • Frequency adjustable from 200 kHz to 2.2 MHz using the RT pin or an external SYNC signal
  • Ultra-high efficiency across the full load range:
    • Greater than 85% efficiency at 12 VIN, 3.3-VOUT
    • Greater than 85% efficiency at 24 VIN, 5-VOUT
    • Ultra-low operating quiescent current at no load: 4 µA at VIN = 24 V to 3.3-V VOUT
  • Optimized for ultra-low EMI requirements:
    • Pseudo-random spread spectrum reduces peak emissions
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • FSW synchronization with MODE/SYNC pin
    • CISPR11 class B capable
  • Output voltage and current options:
    • Fixed output variants of 3.3-V or 5-V VOUT
    • Adjustable output voltage from 1 V to 13 V
    • Pin compatible with TPSM33625
    • 600-mA output current (TPSM365R6)
    • 300-mA output current (TPSM365R3)
  • Inherent protection features for robust design
    • Precision enable input and open-drain PGOOD indicator for sequencing, control, and VIN UVLO
    • Overcurrent and thermal shutdown protections
  • Create a custom design using the TPSM365Rx with the WEBENCH® Power Designer

The TPSM365R6 or TPSM365R3 is a 600-mA or 300-mA, 65-V input synchronous step-down DC/DC power module that combines power MOSFETs, integrated inductor and boot capacitor in a compact and easy-to-use 3.5-mm × 4.5-mm × 2-mm, 11-pin QFN package. The small HotRod™ QFN package technology enhances the thermal performance and low EMI. The device features the ultra-low operating IQ of 4 µA at no load (24 V to 3.3-V VOUT). The TPSM365Rx is available in two fixed output voltage option supporting 3.3 V and 5 V, and an adjustable output voltage option supporting 1-V to 13-V range. The module only requires four external components for a 3.3-V and 5-V fixed output solution. The TPSM365Rx is optimized for excellent EMI performance and space constraint applications.

The TPSM365Rx uses a peak current mode control scheme with internal compensation to maintain stable operation with minimal output capacitance. The precision EN feature allows precise control of the device during start-up and shutdown. An open-drain PGOOD output provides a true indication of the output voltage status. The TPSM365Rx includes prebias start up, overcurrent, and temperature protections, making the TPSM365Rx an excellent device for powering a wide range of industrial applications. In the fixed option variants, the MODE/SYNC pin enables seamless transition from FPWM to PFM with a no-load standby quiescent current of less than 4 µA, ensuring high efficiency and superior transient response for the entire load-current range.

The TPSM365R6 or TPSM365R3 is a 600-mA or 300-mA, 65-V input synchronous step-down DC/DC power module that combines power MOSFETs, integrated inductor and boot capacitor in a compact and easy-to-use 3.5-mm × 4.5-mm × 2-mm, 11-pin QFN package. The small HotRod™ QFN package technology enhances the thermal performance and low EMI. The device features the ultra-low operating IQ of 4 µA at no load (24 V to 3.3-V VOUT). The TPSM365Rx is available in two fixed output voltage option supporting 3.3 V and 5 V, and an adjustable output voltage option supporting 1-V to 13-V range. The module only requires four external components for a 3.3-V and 5-V fixed output solution. The TPSM365Rx is optimized for excellent EMI performance and space constraint applications.

The TPSM365Rx uses a peak current mode control scheme with internal compensation to maintain stable operation with minimal output capacitance. The precision EN feature allows precise control of the device during start-up and shutdown. An open-drain PGOOD output provides a true indication of the output voltage status. The TPSM365Rx includes prebias start up, overcurrent, and temperature protections, making the TPSM365Rx an excellent device for powering a wide range of industrial applications. In the fixed option variants, the MODE/SYNC pin enables seamless transition from FPWM to PFM with a no-load standby quiescent current of less than 4 µA, ensuring high efficiency and superior transient response for the entire load-current range.

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Technical documentation

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Type Title Date
* Data sheet TPSM365R6, TPSM365R3 3-V to 65-V Input, 600-mA/300-mA, 4-μA No-Load IQ Synchronous Buck Converter Power Module in a HotRod™ QFN Package datasheet (Rev. B) PDF | HTML 24 Feb 2023
Application note Soldering Considerations for Power Modules (Rev. C) PDF | HTML 14 Mar 2024
Functional safety information TPSM365R6 and TPSM365R3 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 10 Oct 2022
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 26 Jul 2021
Application brief Powering Drones With a Wide VIN DC-DC Converter (Rev. A) 05 Feb 2019
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 22 Jan 2014

Design & development

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

Evaluation board

TPSM365R6FEVM — TPSM365R6 evaluation board for 3-V to 65-V input, 0.6-A output, power module

The TPSM365R6 evaluation board (EVM) allows for evaluation of TPSM365R6, a synchronous step-down DC/DC module capable of driving up to 0.6 A of load current from a wide input voltage of up to 65 V. The TPSM365R6FEVM operates in FPWM mode. This EVM can be configured for a wide array of selectable (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPSM365R6V3EVM — TPSM365R6 power module evaluation board

The TPSM365R6V3 evaluation board (EVM) allows for evaluation of TPSM365R6, a synchronous step-down DC/DC module capable of driving up to 0.6 A of load current from a wide input voltage of up to 65 V. This EVM is configured to provide a 3.3 V fixed output voltage. The switching frequency is set to (...)
User guide: PDF | HTML
Not available on TI.com
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

PMP41062 — 100W integrated USB Type-C® PD bi-directional charger reference design

This reference design is an integrated USB Type-C® power delivery (PD) and charging reference design for 4- to 10-cell batteries for applications such as, power tool charger with USB Type-C port, vacuum cleaners, portable power station and more. Using the TPS25751, a highly integrated USB (...)
Test report: PDF
Package Pins Download
QFN-FCMOD (RDN) 11 View options

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