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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	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. C)	PDF \| HTML	14 Mar 2024
	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	PDF \| HTML	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: h	PDF \| HTML	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

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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