TPSM265R1SILR - 65V Input 100mA Buck Power Module | Texas Instruments
N.º da peça: TPSM265R1SILR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.61 | $2,61 |
| 10 | $2.38 | $23,80 |
| 100 | $2.12 | $212,00 |
| 500 | $1.94 | $970,00 |
| 1.000 | $1.78 | $1.780,00 |
TPSM265R1SILR Visão geral
A step-down power module is a complete DC-DC converter solution in one package. Unlike a discrete buck regulator design, a power module places the controller, switching FETs, inductor, and passives inside a single molded package, eliminating magnetics selection and layout optimization from the design cycle. Power modules sit at the top of the point-of-load (PoL) power hierarchy: voltage regulator -> switching regulator -> buck converter -> integrated power module, all within the broader power management IC (PMIC) category.
Key differentiating features of the TPSM265R1SILR include an ultra-low quiescent current of 10.5 uA, which enables very high light-load efficiency in always-on and battery-backup systems; a maximum continuous input voltage of 65 V, providing robust headroom for industrial 24 V and 48 V nominal buses; and full integration of the power stage and inductor for a minimal external component count. Fixed 3.3 V and 5 V output options are also available in the same family.
Technically, the module employs a synchronous step-down topology with integrated high-side and low-side MOSFETs and an internal output inductor. The wide 3V to 65V input range with an internal controller and protection features allows direct connection to industrial and automotive-style supply rails, reducing the need for a front-end transient suppressor stage in moderately protected systems. Ultra-low IQ supports low standby power in always-connected nodes.
Typical applications include industrial programmable logic controller (PLC) I/O and sensor supply rails, 24V/48V auxiliary bias supplies for field transmitters and gate drivers, and building-automation or battery-powered monitoring nodes where 10.5 uA quiescent current extends battery life. The small 2.8 mm x 3.7 mm footprint also suits dense multi-rail boards.
Design consideration: because the inductor is internal, verify the estimated thermal and output-current requirements stay within the 100 mA rating across your input voltage and ambient temperature range, and follow the TI datasheet layout guidelines for input capacitance placement.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para TPSM265R1SILR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TPSM265R1V5SILR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPSM265R13R3SILR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TPSM265R1SILR Classificações máximas e características elétricas
| Topologia | Step-Down (Buck) Power Module |
| Faixa de tensão de entrada | 3 V to 65 V |
| Maximum Continuous Input Voltage | 65 V |
| Output Voltage Range (Adjustable) | 1.233 V to 15 V |
| Output Current | 100 mA |
| Quiescent Current (Iq) | 10.5 uA |
| Número de saídas | 1 |
| Isolation | Non-Isolated |
| Integrated Components | Controller, MOSFETs, output inductor |
| Fixed Output Options (Family) | 3.3 V and 5 V variants available |
| Package Dimensions | 2.8 mm x 3.7 mm |
| Package Type | uSIP module (10-terminal, SILR suffix) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant (per distributor listing) |
Guia de Configuração de Pinos do TPSM265R1SILR usip module (10-terminal, silr suffix)
Configuração de pinos para TPSM265R1SILR (pacote usip module (10-terminal, silr suffix)). Este dispositivo de potência possui terminais de gate, drain e source. Para pacotes não polarizados, consulte o datasheet do fabricante para a orientação exata do pino 1 e detalhes do footprint. Aplicações comuns incluem projeto de fontes de alimentação, acionamento de motores e comutação de cargas.
Nenhum dado detalhado de pinagem disponível para TPSM265R1SILR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TPSM265R1SILR é adequado para 6 aplicaçãos: Industrial PLC I/O and Sensor Supply, 48V Auxiliary and Bias Rails, Battery-Powered Monitoring and Metering Nodes, Building Automation and HVAC Controllers, Field Transmitter and 4-20mA Loop Equipment, Dense Multi-Rail Point-of-Load Distribution.
Industrial PLC I/O and Sensor Supply
The TPSM265R1SILR fits PLC I/O card and industrial sensor supplies because its 3V to 65V input range directly tolerates 24V nominal buses with substantial surge headroom, while the 100mA output covers typical channel-level loads for discrete inputs, analog front ends, and local microcontrollers. The fully integrated controller, MOSFETs, and inductor let designers drop a complete buck stage into a 2.8 mm x 3.7 mm footprint where discrete solutions would need careful magnetics placement and switching-loop routing. In distributed I/O architectures where dozens of small rails are needed per cabinet, the module's minimal external component count shortens design cycles and improves reproducibility across board revisions. The adjustable 1.233V to 15V output also serves mixed-voltage rails (5V logic, 3.3V MCU, 12V relays) from one common design.
Recomendado
48V Auxiliary and Bias Rails
For 48V telecom, PoE, and industrial drive systems, the TPSM265R1SILR's 65V maximum continuous input provides the margin needed above 48V nominal rails, generating auxiliary bias supplies of 5V to 15V at up to 100mA for gate-driver logic, microcontrollers, and supervisory circuits. The integrated power stage removes the difficulty of designing a high-voltage buck from scratch, which typically requires careful selection of a 65V+ rated controller and MOSFETs plus magnetics. The 10.5 uA quiescent current is particularly valuable in standby and housekeeping rails that remain energized continuously, reducing wasted power in always-on equipment. Because the output inductor is internal, the module also constrains EMI hot spots to a compact area, simplifying filter design around the input.
Recomendado
Battery-Powered Monitoring and Metering Nodes
Battery-backed meters, data loggers, and condition-monitoring nodes benefit directly from the TPSM265R1SILR's 10.5 uA quiescent current, which keeps conversion overhead negligible during long sleep intervals where average draw may be tens of microamps. The wide 3V to 65V input accepts stacked battery stacks, solar-charged lead-acid strings, or industrial charging buses without changing the regulator. At 100mA output capability, it comfortably powers a low-power microcontroller, radio module, and sensor front end with burst loads for RF transmission. The compact 2.8 mm x 3.7 mm package suits small form-factor enclosure designs, and the adjustable output supports efficient system partitioning between the converter and a downstream low-IQ LDO for noise-sensitive analog circuitry.
Recomendado
Building Automation and HVAC Controllers
Building automation controllers, damper actuators, and HVAC sensor boards run from 24VAC-derived or 24VDC buses, and the TPSM265R1SILR's 65V input rating absorbs the rectified peak and line-swell conditions typical of these systems. A single module provides 3.3V or 5V logic power plus configurable auxiliary rails from 1.233V to 15V at 100mA, covering display backlights, communication transceivers, and microcontrollers on one footprint. The integrated inductor and controller shorten board spins for the frequent product variants characteristic of the building-automation market, and the low 10.5 uA quiescent current supports energy-harvesting or battery-holdup subassemblies used in wireless room controllers. Surface-mount construction enables standard reflow assembly with no magnetics hand placement.
Recomendado
Field Transmitter and 4-20mA Loop Equipment
Two-wire field transmitters and loop-powered instruments must live within tight power budgets, making the TPSM265R1SILR's 10.5 uA quiescent current decisive; every microamp of regulator overhead subtracts directly from the 3.5mA minimum loop current available for electronics. Its wide 3V to 65V input range withstands loop supply variations from roughly 12V to 60V instruments without a pre-regulator, while the 100mA capacity (far above loop constraints) also serves 4-wire transmitter auxiliary rails. The 2.8 mm x 3.7 mm module footprint fits the small cylindrical or DIN-rail housings typical of process instrumentation. Fully integrated MOSFETs and inductor reduce component count on PCBs that must conform to intrinsic-safety style layouts with limited real estate and creepage-friendly placement.
Recomendado
Dense Multi-Rail Point-of-Load Distribution
On densely packed control boards requiring many small rails, the TPSM265R1SILR acts as a replicable point-of-load building block: one footprint converts a common 24V or 48V intermediate bus into 1.233V to 15V outputs at 100mA each. Standardizing on one module across multiple rails reduces qualification effort, spare-part diversity, and layout variants, since only the feedback divider changes between voltages. Compared with discrete bucks, the internal inductor means each converter occupies identical board area, simplifying autorouting and thermal spreading across the PCB. The 65V input tolerance lets the same part serve both 24V industrial and 48V compute-style backplanes in one design library, and the ultra-low quiescent current limits standby consumption as rail count multiplies.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TPSM265R1SILR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TPSM265R1V5SILR | TPSM265R13R3SILR |
|---|---|---|---|
| Package | 2.8 mm x 3.7 mm uSIP module | 2.8 mm x 3.7 mm uSIP module - same | 2.8 mm x 3.7 mm uSIP module - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | 3 V to 65 V | 3 V to 65 V | 3 V to 65 V |
| Output Voltage | 1.233 V to 15 V (adjustable) | 5 V fixed | 3.3 V fixed |
| Output Current | 100 mA | 100 mA | 100 mA |
| Quiescent Current | 10.5 uA | 10.5 uA | 10.5 uA |
| External Feedback Divider | Required (adjustable output) | Not required (fixed 5V) | Not required (fixed 3.3V) |
| Best Fit Application | Mixed or custom rail voltages | Standard 5V logic rails | Standard 3.3V MCU rails |
Principais diferenciais
- Ultra-low 10.5 uA quiescent current (vs TPSM265R1V5SILR)
- Adjustable 1.233V to 15V output covers 3.3V, 5V, and 12V rails with one part number (vs TPSM265R13R3SILR)
- Fully integrated power stage in a 2.8 mm x 3.7 mm footprint (vs TPSM4850 (larger TI module family))
Notas de projeto
Although the controller, MOSFETs, and inductor are integrated, external input capacitance placement still determines performance. Place the input ceramic capacitor (per TI datasheet recommendations, typically a low-ESR ceramic within 1-2 mm of the VIN and GND terminals) directly at the module terminals to minimize the high-frequency switching loop. Keep the feedback resistor divider (for the adjustable SILR version) close to the FB terminal and route it away from the switch node. Follow the TI TPSM265R1 datasheet layout example rather than generic buck layout rules, since terminal positions are unique to the 2.8 mm x 3.7 mm uSIP package.
Estimated: at 65V input and 100mA load, throughput is about 6.5W, so even 85-90% efficiency means roughly 0.7-1.0W of dissipation in the module's tiny 2.8 mm x 3.7 mm body - verify junction temperature against the datasheet derating curves at your ambient. At 24V input the same load dissipates proportionally less (about 0.3-0.4W estimated). Use generous copper pour on all terminals to spread heat, and consult the TI datasheet thermal information table for theta_JA of the uSIP package before committing to full-load operation at high input voltages or elevated ambient temperatures.
Do not confuse ordering-code suffixes: SILR is the adjustable-output variant (1.233V to 15V), while other TPSM265R1 order codes are fixed 3.3V or 5V - they are not interchangeable without BOM review. Second, the 65V rating is a maximum continuous input; add TVS clamping if your 24V/48V bus exceeds it during surges, since no module absorbs unlimited transients. Third, because the inductor is internal, the module cannot be parallel-stacked for higher current - 100mA is a hard limit. Finally, respect the minimum input of 3V; brownout conditions below this will drop regulation.
Informações de conformidade
RoHS compliance and lead-free status per distributor listings (DigiKey/LCSC). Formal REACH, halogen-free, and conflict-minerals declarations should be obtained from the TI.com quality page for TPSM265R1.
