TPS826711 - 600mA 1.8V MicroSiP Buck Module | Texas Instruments
MPN： TPS826711 ✓ 啟用中TPS826711 概覽
A step-down converter, also known as a buck converter, is a type of DC-DC converter that steps down an input voltage to a lower output voltage while maintaining high efficiency. It is a fundamental building block in power management, converting a higher voltage rail to a lower one for powering digital ICs, sensors, and other loads. The TPS826711 belongs to the family of switching regulators, which are more efficient than linear regulators for large voltage differences, making them essential in battery-powered devices where power conservation is critical.
Key features include a regulated 5.5MHz switching frequency, which allows tiny external components and reduces output ripple. It achieves up to 90% efficiency, minimizing power loss and extending battery life. The device also features a low quiescent current of 17uA, making it suitable for always-on applications. Additionally, it includes spread-spectrum PWM frequency dithering to reduce electromagnetic interference (EMI), a critical feature for noise-sensitive systems.
Technically, the TPS826711 is based on a high-frequency synchronous step-down topology, using both high-side and low-side MOSFETs to achieve high efficiency. The integrated inductor and capacitors are co-packaged in the MicroSiP, ensuring predictable performance and reducing parasitic effects. The device operates in power-save mode at light loads, further improving efficiency across the entire load range.
Typical applications include powering microcontrollers, DSPs, and other digital ICs in battery-powered devices such as wearables, IoT sensors, and portable medical equipment. Its low noise and high efficiency also make it suitable for RF transceivers and audio codecs where clean power is essential.
When designing with the TPS826711, ensure adequate input and output decoupling as recommended in the datasheet. The power-save mode provides excellent light-load efficiency but may introduce output ripple; consider this trade-off in noise-sensitive applications.
直接替換替代品，適用於 TPS826711 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TPS826711 （相同外形與佔位） — 差異在於 Input Voltage Range, Package, Switching Frequency.
TPS826721SIPT
✅ 直接替換📋 參考替代品（不在目錄中）
TPS82676SIPT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TPS82674SIPT
✅ 直接替換📋 參考替代品（不在目錄中）
TPS82740A
⚡ 相同封裝📋 參考替代品（不在目錄中）
TPS82085SILR
⚡ 相同封裝聯絡詢價
查看資料表 →TPS826711 最大額定值與電氣特性
| Output Current | 600 mA |
| 輸出電壓 | 1.8 V (fixed) |
| 輸入電壓範圍 | 2.3 V to 4.8 V |
| 切換頻率 | 5.5 MHz (regulated) |
| 拓撲 | Synchronous step-down (buck) module |
| 靜態電流 | 17 uA |
| Peak Efficiency | 90% |
| EMI Reduction | Spread spectrum, PWM frequency dithering |
| Light-Load Mode | Power-save mode |
| Integrated Components | Switching regulator, inductor, input/output capacitors |
| External Components | None required |
| 封裝 | MicroSiP, 8-pin uSIP |
| Profile Height | < 1.0 mm |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
TPS826711 腳位配置
| 腳位 1 | VIN — Power input, 2.3V to 4.8V |
| 腳位 2 | GND — Ground |
| 腳位 3 | EN — Enable input |
| 腳位 4 | VOUT — Fixed 1.8V regulated output |
| 腳位 5 | GND — Ground |
| 腳位 6 | VOUT — Regulated output (parallel) |
| 腳位 7 | GND — Ground / thermal |
| 腳位 8 | NC/GND — Refer to datasheet pin table |
典型應用
TPS826711 適用於 6 應用s: Wearables and Smart Watches, IoT Sensor Nodes, RF Transceiver Power, Portable Medical Devices, Battery-Powered Audio, Point-of-Load for MCUs and DSPs.
Wearables and Smart Watches
The TPS826711 fits wearables because its <1.0mm profile MicroSiP package saves vertical space under display stacks, and its 17uA quiescent current preserves battery life during always-on standby. With a 2.3V-4.8V input it connects directly to a Li-ion cell and delivers a regulated 1.8V at up to 600mA for MCU and sensor rails. The 5.5MHz switching frequency keeps the integrated inductor tiny, and spread-spectrum dithering reduces interference with touch and wireless subsystems.
推薦
IoT Sensor Nodes
Battery-powered IoT nodes benefit from the TPS826711's power-save mode, which maintains high efficiency from light standby loads up to the full 600mA during radio transmit bursts. The fully integrated design - regulator, inductor, and capacitors in one MicroSiP - removes magnetics selection and layout sensitivity, accelerating time-to-market for compact sensor boards. The 90% efficiency at 5.5MHz operation extends coin-cell or Li-ion runtime, while the fixed 1.8V output directly powers low-voltage logic and MCUs.
推薦
RF Transceiver Power
The TPS826711's fixed 5.5MHz regulated frequency and spread-spectrum PWM dithering keep switching harmonics out of sensitive RF bands, making it a good fit for transceiver supply rails. The 600mA rating covers typical transmit-burst currents of short-range radios, and power-save mode sustains efficiency during idle receive periods. Because the inductor and capacitors are integrated, radiated loop area is minimized versus discrete solutions, lowering EMI risk in dense wireless designs such as Zigbee and BLE modules.
推薦
Portable Medical Devices
Portable diagnostic and monitoring equipment uses the TPS826711 to convert a Li-ion battery rail to a clean, fixed 1.8V for low-voltage digital ICs. The high 90% efficiency reduces heat in sealed enclosures, and the fully integrated MicroSiP shortens qualification because magnetics variation is eliminated. Low 17uA quiescent current matters for devices that spend most of the day in standby. The <1.0mm profile suits handheld form factors where board space and height are constrained.
推薦
Battery-Powered Audio
The low-noise TPS826711 supplies 1.8V digital rails for codecs and audio DSPs in Bluetooth headsets and portable recorders. Spread-spectrum frequency dithering spreads switching noise, reducing audible tonal artifacts, while power-save mode keeps efficiency high during quiet playback periods. The integrated input and output capacitance simplify layout in tightly packed acoustical enclosures, and the 600mA capability covers codec plus wireless combo current peaks without a second converter.
推薦
Point-of-Load for MCUs and DSPs
As a complete point-of-load solution, the TPS826711 steps a 2.3V-4.8V intermediate rail down to a fixed 1.8V core or I/O supply for microcontrollers and low-power DSPs such as the C2000 family in portable instruments. The 5.5MHz operation delivers fast transient response to load steps, and the fully integrated module guarantees consistent performance across builds, avoiding inductor sourcing variance. No external components are required, shrinking BOM count on high-volume boards.
推薦
推薦產品摘要
工程參考資料，適用於 TPS826711 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TPS826721SIPT | TPS82676SIPT | TPS82674SIPT | TPS82740A | TPS82085SILR |
|---|---|---|---|---|---|---|
| Package | MicroSiP 8-pin uSIP | MicroSiP 8-pin uSIP - same | MicroSiP 8-pin uSIP - same | MicroSiP 8-pin uSIP - same | MicroSiP (similar family) | MicroSiP (larger footprint) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | |
| Output Voltage | 1.8 V fixed | Different fixed VOUT | Different fixed VOUT | Different fixed VOUT | Step-down, VOUT-selectable | Adjustable 0.8V-6V |
主要差異化特點
- Zero external components required (對比TPS82085SILR)
- 17uA quiescent current for always-on loads (對比TPS826721SIPT)
- Sub-1.0mm profile MicroSiP integration (對比TPS82740A)
設計說明
Although the TPS826711 integrates the inductor and capacitors, PCB layout still matters: place the module directly across the load, keep the VIN trace short and wide, and provide a solid ground plane under the MicroSiP terminals. Per TI datasheet layout guidance, minimize loop area between the module GND and system GND to contain the 5.5MHz switching currents and reduce radiated EMI in wireless designs.
Verify the input source can deliver peak currents. At 90% efficiency with 1.8V/600mA output from a 3.7V battery, input current averages roughly 320mA, but synchronous buck switching draws pulsed input current at 5.5MHz. If the input rail has long, thin traces, add a small local ceramic capacitor near VIN even though the module has integrated input capacitance, per TI application recommendations.
Do not exceed the 4.8V maximum input - a USB 5V rail directly violates the rating; use a stage between USB and this module. Also note that in power-save mode, output ripple increases at light loads; for noise-critical RF PLL supplies, evaluate forcing continuous-conduction operation or adding an LC post-filter. Respect the MSL rating and IPC reflow limits (2-3 reflow cycles maximum).
合規資訊
RoHS compliant per TI product page; exact REACH/halogen status and MSL rating should be confirmed from TI quality portal for the specific ordering code.
