Product details

Iout (Max) (A) 0.1 Vin (Min) (V) 3 Vin (Max) (V) 65 Vout (Min) (V) 1.223 Vout (Max) (V) 15 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Overcurrent protection, Power Good Iq (Typ) (uA) 10.5 Regulated outputs (#) 1 Duty cycle (Max) (%) 100 Topology Buck, Inverting Buck-Boost, Synchronous Buck
Iout (Max) (A) 0.1 Vin (Min) (V) 3 Vin (Max) (V) 65 Vout (Min) (V) 1.223 Vout (Max) (V) 15 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Overcurrent protection, Power Good Iq (Typ) (uA) 10.5 Regulated outputs (#) 1 Duty cycle (Max) (%) 100 Topology Buck, Inverting Buck-Boost, Synchronous Buck
uSiP (SIL) 10
  • Wide input voltage range of 3 V to 65 V
  • Output voltage options:
    • Adjustable 1.223 V to 15 V
    • Fixed 3.3 V or 5 V
  • 100-mA output current
  • 10.5-µA quiescent current
  • ±1% internal voltage reference
  • PFM mode of operation
  • –40°C to 125°C ambient temperature range
  • Active slew rate control for low EMI
  • Meets CISPR11 (EN55011) EMI standards
  • Monotonic start-up into prebiased output
  • Power-good flag
  • Precision enable and input UVLO with hysteresis
  • Thermal shutdown protection with hysteresis
  • 2.8-mm x 3.7-mm x 1.9-mm package
  • Create a custom regulator design with the TPSM265R1 using WEBENCH Power Designer
  • Wide input voltage range of 3 V to 65 V
  • Output voltage options:
    • Adjustable 1.223 V to 15 V
    • Fixed 3.3 V or 5 V
  • 100-mA output current
  • 10.5-µA quiescent current
  • ±1% internal voltage reference
  • PFM mode of operation
  • –40°C to 125°C ambient temperature range
  • Active slew rate control for low EMI
  • Meets CISPR11 (EN55011) EMI standards
  • Monotonic start-up into prebiased output
  • Power-good flag
  • Precision enable and input UVLO with hysteresis
  • Thermal shutdown protection with hysteresis
  • 2.8-mm x 3.7-mm x 1.9-mm package
  • Create a custom regulator design with the TPSM265R1 using WEBENCH Power Designer

The TPSM265R1 is a compact, easy-to-use module that operates over a wide input voltage range up to a maximum continuous input voltage of 65 V. The module fully integrates a controller, MOSFETs, and an output inductor. The module is designed to quickly and easily implement a power design in a small PCB footprint. There are two fixed output voltage options, 3.3 V and 5 V, and an adjustable output voltage option that can be adjusted from 1.223 V to 15 V. Each option has a load current rating of 100 mA. The TPSM265R1 operates in Pulse Frequency Modulation (PFM) mode, providing optimal efficiency at light loads. The control scheme does not require loop compensation, providing excellent line and load transient.

Although designed for small size and simplicity, the TPSM265R1 offers many features. Precision enable, adjustable UVLO, and hysteresis allow for specific power-up and power-down requirements. Selectable/adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start via an external capacitor. An open-drain PGOOD indicator can be used for sequencing and output voltage monitoring. The very small 2.8-mm × 3.7-mm × 1.9-mm package is a good fit for space-constrained applications.

The TPSM265R1 is a compact, easy-to-use module that operates over a wide input voltage range up to a maximum continuous input voltage of 65 V. The module fully integrates a controller, MOSFETs, and an output inductor. The module is designed to quickly and easily implement a power design in a small PCB footprint. There are two fixed output voltage options, 3.3 V and 5 V, and an adjustable output voltage option that can be adjusted from 1.223 V to 15 V. Each option has a load current rating of 100 mA. The TPSM265R1 operates in Pulse Frequency Modulation (PFM) mode, providing optimal efficiency at light loads. The control scheme does not require loop compensation, providing excellent line and load transient.

Although designed for small size and simplicity, the TPSM265R1 offers many features. Precision enable, adjustable UVLO, and hysteresis allow for specific power-up and power-down requirements. Selectable/adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start via an external capacitor. An open-drain PGOOD indicator can be used for sequencing and output voltage monitoring. The very small 2.8-mm × 3.7-mm × 1.9-mm package is a good fit for space-constrained applications.

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Technical documentation

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Type Title Date
* Data sheet TPSM265R1 65-V Input, 100-mA Power Module with Ultra-Low IQ datasheet (Rev. B) PDF | HTML 09 Dec 2020
Application note Soldering Considerations for Power Modules (Rev. B) PDF | HTML 17 May 2021
Application note Bang for your Buck-An Intro to Buck Converter vs. Buck Power Module Comparison PDF | HTML 28 Aug 2020
Technical article Choosing buck converters and LDOs for miniature industrial automation equipment: what to consider 29 Jan 2020
Application note Practical Thermal Design With DC/DC Power Modules (Rev. A) 20 Nov 2019
Technical article Powering tiny industrial automation control equipment with high-voltage modules: how to ensure reliability 05 Nov 2019
Application note Inverting Application for the TPSM265R1 12 Jun 2019
EVM User's guide Using the TPSM265R1 EVM Document Type EVM User's Guide 14 May 2019

Design & development

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

Evaluation board

TPSM265R1EVM — 3-V to 65-V input, 1.223-V to 15-V output, 100-mA power module evaluation board

The TPSM265R1 evaluation board is configured to evaluate the operation of the TPSM265R1 power module for current up to 100 mA. The input voltage range is 3 V to 65 V. The output voltage range is 1.223 V to 15 V. The evaluation board makes it easy to evaluate the TPSM265R1 operation.
User guide: PDF
Not available on TI.com
Simulation model

TPSM265R1 PSPICE Model

SNVMBV3.ZIP (88 KB) - PSpice Model
Simulation model

TPSM265R1V3 PSpice Transient Model

SNVMBV6.ZIP (91 KB) - PSpice Model
Simulation model

TPSM265R1V5 PSpice Transient Model

SNVMBV4.ZIP (91 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 (...)
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