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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

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Data sheet

TPSM365R3

ACTIVE
Data sheet Order now

Product details

Iout (max) (A) 0.3 Vin (max) (V) 65
Iout (max) (A) 0.3 Vin (max) (V) 65
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
Reference designs

PMP41062 — 100W integrated USB Type-C® PD bidirectional 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
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QFN-FCMOD (RDN) 11 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

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