TPS61096ADSSR - 28V Boost Converter, 1µA IQ | Texas Instruments
N.º da peça: TPS61096ADSSR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.32 | $1,32 |
| 10 | $1.18 | $11,80 |
| 100 | $0.97 | $97,00 |
| 500 | $0.85 | $425,00 |
| 1.000 | $0.74 | $740,00 |
| 3.000 | $0.62 | $1.860,00 |
TPS61096ADSSR Visão geral
A boost converter (step-up DC-DC switching regulator) is a power management integrated circuit that raises a lower DC input voltage to a higher DC output voltage using an inductor, switch, and rectifier network. It belongs to the broader hierarchy of switching voltage regulators, then voltage regulators, then power management ICs. The TPS61096A family is specifically optimized for ultra-low standby current to extend battery life in always-on systems.
Key features of the TPS61096ADSSR include true shutdown isolation, internal synchronous MOSFETs, output disconnect during shutdown, programmable output voltage via an external resistor divider, and integrated soft-start. Thermal shutdown and over-current protection safeguard the device under fault conditions. The 1µA quiescent current is among the lowest in its class, making this regulator exceptionally well suited to IoT nodes, wearables, and metering applications that spend most of their operational life in standby.
The TPS61096ADSSR uses a peak-current-mode control architecture with a fixed internal switching frequency (typically around 1 MHz, depending on variant), enabling a small 4.7µH inductor. Synchronous rectification eliminates the need for an external Schottky diode, shrinking the BOM and improving efficiency at heavy loads. The output disconnect feature prevents reverse current flow from VOUT back through the inductor to the battery when the converter is disabled, preserving battery energy and protecting the system.
Typical applications include smart meters and gas/water AMR modules, ePaper and e-ink displays, two-cell alkaline-powered toys and portable instruments, single-cell Li-Ion powered OLED bias supplies, and low-power wireless sensor nodes. The wide output range of 4.5V to 28V also supports bias rails for TFT displays, IGBT gate drivers, and piezo buzzer excitation.
When designing with this part, ensure the inductor has a saturation current rating at least 30% above the peak switch current to prevent saturation at cold temperatures. Place the input capacitor, output capacitor, and bootstrap capacitor as close to the IC as possible. The output disconnect feature must be considered when cascading boost stages.
This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas drop-in para TPS61096ADSSR — 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:
TPS61096ADSST
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS61096DSSR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS61096ADSSR Classificações máximas e características elétricas
| Topologia | Synchronous Boost (Step-Up) |
| Faixa de tensão de entrada | 1.8 V to 5.5 V |
| Faixa de tensão de saída | 4.5 V to 28 V (adjustable) |
| Switch Current | 350 mA |
| Corrente de repouso | 1 µA (ultra-low) |
| Encapsulamento | WSON-12 (DSS) 3x3 mm with Exposed Pad |
| Contagem de pinos | 12 |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 °C to +125 °C |
| Output Disconnect | Yes (true shutdown) |
| Retificador síncrono | Yes (internal MOSFETs) |
| Soft-start | Yes (internal) |
| Desligamento térmico | Yes |
| Over-Current Protection | Yes |
| Status RoHS | Compliant |
Configuração de pinos do TPS61096ADSSR
| Pino 1 | SW — Switch node - inductor connection |
| Pino 2 | SW — Switch node - inductor connection |
| Pino 3 | VIN — Input supply voltage |
| Pino 4 | EN — Enable input (active high) |
| Pino 5 | GND — Ground |
| Pino 6 | AGND — Analog ground |
| Pino 7 | FB — Feedback voltage (set VOUT via resistor divider) |
| Pino 8 | VOUT — Regulated output voltage |
| Pino 9 | VOUT — Regulated output voltage |
| Pino 10 | NC — Not connected (per datasheet) |
| Pino 11 | NC — Not connected (per datasheet) |
| Pino 12 | PGND — Power ground (exposed pad) |
Aplicações típicas
TPS61096ADSSR é adequado para 6 aplicaçãos: Smart Meter AMR Modules, ePaper and E-Ink Display Bias, Two-Cell Alkaline Portable Instruments, Single-Cell Li-Ion OLED Bias Supply, Low-Power Wireless Sensor Nodes, TFT Display and IGBT Gate Driver Bias.
Smart Meter AMR Modules
The TPS61096ADSSR's 1µA quiescent current and 28V output capability make it ideal for automatic meter reading (AMR) modules in gas, water, and electricity meters. The wide 4.5V to 28V output range drives LCD bias rails and piezo buzzer drivers, while the ultra-low IQ preserves battery life across 10+ year field deployments. The WSON-12 footprint fits inside compact meter enclosures, and the 1.8V to 5.5V input range accommodates single-cell Li-SOCl2 or two-cell alkaline primary batteries common in metering applications.
Recomendado
ePaper and E-Ink Display Bias
The TPS61096ADSSR provides the adjustable high-voltage rail required by ePaper and e-ink display gate and source drivers. Its 4.5V to 28V output range covers typical VCOM voltages (typically ±15V to ±25V for symmetric drive), and the 1µA quiescent current minimizes standby drain between page refresh events, which can be hours or days apart. The output-disconnect feature prevents reverse leakage into the battery when the display is idle, and the small WSON-12 package allows placement directly beneath the display flex cable.
Recomendado
Two-Cell Alkaline Portable Instruments
The TPS61096ADSSR operates from 1.8V to 5.5V, making it well suited for two-cell alkaline (2.0V to 3.2V) powered handheld instruments such as digital calipers, laser distance meters, and portable gas detectors. It boosts the depleted battery voltage up to 28V for sensor excitation, photo-detector bias, or OLED panel supply. The synchronous topology and integrated MOSFETs reduce BOM count and PCB area, while the internal soft-start prevents inrush current that could trigger battery protection circuits at low temperatures.
Recomendado
Single-Cell Li-Ion OLED Bias Supply
The TPS61096ADSSR steps a single Li-Ion cell (3.0V to 4.2V) up to the 12V to 18V AVDD rail required by small OLED displays in wearable and IoT devices. Its 350 mA switch current and synchronous rectification deliver peak load currents required for OLED pixel refresh, while 1µA quiescent current preserves battery life during display-off intervals. The exposed thermal pad of the WSON-12 package provides efficient heat extraction for continuous-operation wearable scenarios.
Recomendado
Low-Power Wireless Sensor Nodes
The TPS61096ADSSR is well matched to battery-powered wireless sensor nodes that transmit periodically from a high-impedance sensor source. Its 1µA quiescent current means the boost converter contributes negligible standby drain between transmissions, and the 28V output can bias electrochemical gas sensors, PIR motion sensors, or piezoelectric accelerometers. The output disconnect feature is critical here because many sensors hold their bias voltage across the measurement window, and any reverse leakage would degrade measurement accuracy.
Recomendado
TFT Display and IGBT Gate Driver Bias
The TPS61096ADSSR delivers the 18V to 24V bias rail required by TFT-LCD gate drivers and IGBT gate driver bootstrap networks from a 3.3V or 5V logic rail. The 28V maximum output range provides design margin for IGBT high-side drive circuits, and the synchronous topology eliminates the need for an external Schottky diode, reducing both BOM cost and PCB area. The 1µA quiescent current is well below the leakage of most gate-driver bootstrap capacitors, so disabling the converter cleanly turns off the high-side drive.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TPS61096ADSSR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TPS61096ADSST | TPS61096DSSR |
|---|---|---|---|
| Package | WSON-12 (DSS) | WSON-12 (DSS) - same | WSON-12 (DSS) - same |
| Brand | Texas Instruments | Texas Instruments - same | Texas Instruments - same |
| Input Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Output Voltage Range | 4.5 V to 28 V | 4.5 V to 28 V | 4.5 V to 28 V |
| Switch Current | 350 mA | 350 mA | 350 mA |
| Quiescent Current | 1 µA | 1 µA | 1 µA |
| Output Disconnect | Yes | Yes | Yes |
| Reel Suffix | ADSSR (large reel) | ADSST (small reel) | DSSR (non-A variant) |
Principais diferenciais
- 28V output from sub-5V input (vs TPS61236PWP)
- 1µA ultra-low quiescent current (vs TPS61090)
- True output disconnect during shutdown (vs TPS61161ADRVR)
Notas de projeto
Estimated: at VIN=3.7V (Li-Ion), VOUT=18V, IOUT=50mA, the TPS61096ADSSR dissipates roughly 0.42W in the high-side MOSFET during boost operation. With the WSON-12 exposed-pad thermal resistance of approximately 50 C/W on a 1-square-inch copper pour, this yields a junction temperature rise of ~21°C above ambient - well within the 125°C rating, but verify with the manufacturer's SOA curve if operating at the full 350mA switch current.
Place the input capacitor (≥4.7µF ceramic), output capacitor (≥1µF ceramic), and bootstrap capacitor as close as possible to the VIN, VOUT, and SW pins respectively to minimize switching-node ringing and EMI. Use a continuous ground plane tying GND, AGND, and PGND (the exposed pad) together at a single star point beneath the IC. Route the SW node traces as short and wide as possible to reduce parasitic inductance.
Do not exceed 28V on VOUT or 5.5V on VIN - the device has no over-voltage protection at the output and the input ESD diodes will clamp at 6V. Choose an inductor with saturation current at least 30% above the peak switch current (typically 350mA × 1.3 ≈ 460mA) to prevent saturation at cold temperatures. The EN pin must not be left floating - tie it to VIN through a 100kΩ resistor if not actively driven.
Informações de conformidade
RoHS compliant per TI product page. Not AEC-Q100 qualified - this is an industrial/consumer grade part.
