TPS63070RNMT - 2V-16V, 2A Buck-Boost Converter | TI
MPN： TPS63070RNMT ✓ 啟用中TPS63070RNMT 概覽
A buck-boost converter is a type of DC-DC switching regulator within the broader power management IC category that combines buck (step-down) and boost (step-up) topologies. This lets a single inductor-based stage produce a stable rail from sources such as 4-cell alkaline, 12V lead-acid, or solar inputs whose voltage swings across the output level. The TPS63070 belongs to the switching voltage regulator family used in portable, industrial, and IoT power systems.
Key features include a 3.6A switch current limit, 2.4MHz switching frequency, and low quiescent current of approximately 50uA typical. Synchronous rectification with integrated MOSFETs improves efficiency and reduces external component count, while the 2.4MHz clock permits small inductors and capacitors for a compact footprint. PWM mode maximizes heavy-load efficiency and PFM mode preserves light-load efficiency; the device also supports negative output current sinking in PWM mode per TI datasheet SLVSDD7B.
Architecture-wise, the four-switch synchronous buck-boost topology seamlessly transitions between buck, buck-boost, and boost operating regions with a single inductor, avoiding output discontinuity when the battery voltage crosses the setpoint. The adjustable feedback (FB) pin sets the output with a resistor divider, and programmable soft-start limits inrush current.
Typical applications include battery-powered portable instruments, industrial sensors, IoT wireless nodes, and 12V rail conditioning for microcontrollers, RF modules, and displays. Wide input tolerance makes it ideal for solar or vehicle-supplied systems.
For best results, keep the inductor and input/output capacitor loops short, place the input capacitor at VIN and PGND, and provide adequate copper on the thermal pad. Pricing references are as of 2026-08-28.
直接替換替代品，適用於 TPS63070RNMT — 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： TPS63070RNMT （相同外形與佔位） — 差異在於 Input Voltage Range, Operating Temperature, Output Type, Output Voltage Range, Package.
TPS63070QRNMTQ1
聯絡詢價
查看資料表 →TPS63070RNMR
📋 參考替代品（不在目錄中）
TPS630701RNMR
📋 參考替代品（不在目錄中）
TPS630702RNMR
📋 參考替代品（不在目錄中）
TPS63070QNMRQ1
📋 參考替代品（不在目錄中）
TPS63070RNMT 最大額定值與電氣特性
| 拓撲 | Buck-Boost (synchronous) |
| 輸入電壓範圍 | 2 V to 16 V |
| 輸出電壓範圍 | 2.5 V to 9 V (adjustable) |
| Output Current | 2 A |
| Switch Current Limit | 3.6 A |
| 切換頻率 | 2.4 MHz |
| 輸出數量 | 1 |
| 輸出類型 | Adjustable (FB pin) |
| 工作溫度 | -40C to +125C (TJ) |
| 封裝 | VQFN-HR (RNM), 15 pins |
| 安裝類型 | Surface Mount |
| 同步整流 | Yes (integrated MOSFETs) |
| Control Modes | PWM / PFM |
| 軟啟動 | Programmable |
| 過熱關機 | Yes |
| Negative Current Sinking | Supported in PWM mode |
TPS63070RNMT 腳位配置
| 腳位 1 | PGND — Power ground |
| 腳位 2 | VIN — Power input, 2V-16V |
| 腳位 3 | VINA — Analog supply for control circuit |
| 腳位 4 | EN — Enable input |
| 腳位 5 | SS/TR — Soft-start / tracking pin |
| 腳位 6 | FB — Feedback, sets output with resistor divider |
| 腳位 7 | PGND — Power ground |
| 腳位 8 | SW1 — Switch node 1, connect inductor |
| 腳位 9 | SW1 — Switch node 1 |
| 腳位 10 | SW2 — Switch node 2, connect inductor |
| 腳位 11 | SW2 — Switch node 2 |
| 腳位 12 | VOUT — Regulated output, 2.5V-9V |
| 腳位 13 | VOUT — Regulated output |
| 腳位 14 | GND — Ground |
| 腳位 15 | PGND — Power ground / thermal pad |
典型應用
TPS63070RNMT 適用於 6 應用s: 12V Rail Conditioning for MCUs and RF Modules, Battery-Powered Portable Instruments, IoT Wireless Sensor Nodes, Solar-Powered Systems, Automotive 12V Subsystems, Display and LED Bias Supplies.
12V Rail Conditioning for MCUs and RF Modules
Industrial control boards often run from 12V or 24V rails that sag or spike across the 5V logic level. The TPS63070RNMT accepts 2V-16V input and regulates a stable 5V at up to 2A, passing seamlessly through buck, buck-boost, and boost regions without output dropout. Its 2.4MHz switching keeps inductors small, and synchronous rectification sustains high efficiency for always-on microcontroller and radio loads.
推薦
Battery-Powered Portable Instruments
Multi-cell alkaline or lithium battery packs swing from above to below the regulated rail as they discharge. The TPS63070RNMT's 2V-16V input and 2.5V-9V adjustable output maintain regulation across the entire discharge curve, while roughly 50uA quiescent current and PFM light-load mode extend battery life between charges or replacements in handheld test and measurement devices.
推薦
IoT Wireless Sensor Nodes
Wireless sensor nodes need burst-current capability for radio transmit while idling at microamp levels. The TPS63070RNMT supplies 2A peaks for PA bursts from a 2V-16V solar or battery source, and its PFM mode preserves efficiency at sleep-state loads. The 2.4MHz operation permits a compact inductor, fitting constrained node PCBs. Output set by a single FB resistor divider simplifies rail provisioning.
推薦
Solar-Powered Systems
Solar panel output voltage varies widely with irradiance and temperature, frequently crossing the battery or load voltage. The TPS63070RNMT's 2V-16V input range and automatic buck-boost transition deliver a constant output from dawn-to-dusk conditions without mode discontinuity, making it a simple single-inductor power stage for solar garden devices, remote telemetry, and energy-harvesting front ends.
推薦
Automotive 12V Subsystems
With the AEC-Q100 qualified TPS63070QRNMTQ1 sibling, this family serves automotive modules supplied from 12V battery rails that droop during cranking below 6V and surge during load dump. The wide 2V-16V input holds infotainment or sensor-module outputs steady through both conditions, and the 2.4MHz switching keeps switching noise out of the AM radio band, easing EMC compliance.
推薦
Display and LED Bias Supplies
Small TFT and OLED displays need stable 3.3V-9V rails from battery or USB inputs of varying voltage. The TPS63070RNMT regulates any setpoint in its 2.5V-9V range with 2A capability for display backlight drivers and panel logic. Integrated synchronous FETs and a 2.4MHz clock shrink the solution to a single small inductor, fitting slim display modules with tight height limits.
推薦
推薦產品摘要
工程參考資料，適用於 TPS63070RNMT — 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 | TPS63070QRNMTQ1 | TPS63070RNMR | TPS630701RNMR | TPS630702RNMR |
|---|---|---|---|---|---|
| Package | VQFN-HR (RNM) 15-pin | VQFN-HR (RNM) 15-pin - same | VQFN-HR (RNM) 15-pin - same | VQFN-HR (RNM) 15-pin - same | VQFN-HR (RNM) 15-pin - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | 2V to 16V | 2V to 16V | 2V to 16V | 2V to 16V | 2V to 16V |
| Output Voltage | 2.5V-9V adjustable | 2.5V-9V adjustable | 2.5V-9V adjustable | 3.3V fixed | 5V fixed |
| Output Current | 2 A | 2 A | 2 A | 2 A | 2 A |
| Switch Current Limit | 3.6 A | 3.6 A | 3.6 A | 3.6 A | 3.6 A |
| Switching Frequency | 2.4 MHz | 2.4 MHz | 2.4 MHz | 2.4 MHz | 2.4 MHz |
| AEC-Q100 Qualification | No (standard grade) | Yes | No | No | No |
| Packing | Cut tape / small reel (T) | Cut tape (T) | Tape & reel 3000 (R) | Tape & reel 3000 (R) | Tape & reel 3000 (R) |
主要差異化特點
- Widest input range in TI buck-boost family (對比TPS63021)
- Automotive-qualified drop-in sibling (對比TPS63070QRNMTQ1)
- Higher output current than small buck-boosts (對比TPS62740DSSR)
設計說明
Place the input capacitor as close as possible to the VIN and PGND pins, and keep the SW1/SW2-to-inductor loop short and wide. The four-switch buck-boost topology circulates current through both switch nodes, so minimize the copper loop area of SW1-inductor-SW2 to limit radiated EMI at the 2.4MHz switching frequency. Follow TI datasheet SLVSDD7B Section 9 PCB layout guidelines.
The exposed thermal pad must be soldered to a solid ground plane with an array of thermal vias. At VIN=12V, VOUT=5V, 2A load, dissipation is roughly 1-2W depending on efficiency; inadequate copper can push the junction beyond the 125C rating. Use at least 1 square inch of 2oz copper or a buried ground plane under the pad for high-power continuous loads.
Do not omit the SS/TR soft-start capacitor; omitting it causes hard inrush at startup. Ensure the FB divider uses 1% resistors and the FB node is kept short to avoid noise pick-up. Verify the inductor saturation rating exceeds the 3.6A switch current limit - undersized inductors saturate and trigger current-limit instability.
合規資訊
RoHS compliance per distributor listings (DigiKey/LCSC). AEC-Q100 applies only to the TPS63070Q (Q1) variant, not this standard part. Verify REACH status on TI product page.
