My Inquiry
My Account
Texas Instruments TPS65290BMRHFR
- Part No.:
- TPS65290BMRHFR
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS65290BMRHFR.pdf
- Description:
- IC REG CONV ENERGY 3OUT 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,393
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS65290BMRHFR from Texas Instruments is a multi-mode power management IC (PMIC) featuring a 500-mA buck-boost converter, a 150-mA LDO, eight configurable power distribution switches, and a factory-configured 30-mA BuckMINI always-on bias supply with 300-nA quiescent current. It operates from 2.2 V to 5 V input and supports I²C/SPI serial control for energy harvesting, flow meter, and battery-powered industrial sensor systems.
For engineers reviewing the TPS65290BMRHFR datasheet, TPS65290BMRHFR pinout, TPS65290BMRHFR application, or TPS65290BMRHFR equivalent, key selection criteria include its BuckMINI low-IQ microcontroller bias rail, programmable VMAX analog multiplexer, integrated recovery comparator, and 24-pin QFN (RHF) package with thermal pad.
Technical Context
The TPS65290BMRHFR integrates three independent power domains: a PFM/PWM buck-boost converter with forced-PWM option and 1600-kHz oscillator; a 150-mA LDO with 4% output accuracy and 300-mV dropout at full load; and a dedicated 30-mA BuckMINI hysteretic converter optimized for ultra-low-quiescent-current microcontroller sleep mode operation.
Its control architecture supports factory-selectable I²C or SPI interface, GPIO-driven enable sequencing (CE, BB_EN), interrupt-driven status reporting (INT), and automatic power path arbitration via the VMAX block - which selects the higher of BB_OUT or VIN and includes configurable turn-on/turn-off thresholds and diode-drop options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 2.2 V to 5 V - supports single-cell Li-ion, LiFePO₄, and energy harvesting sources without external regulation. |
| Buck-boost output | 1.0–5.0 V in 200-mV steps, ±3% accuracy - programmable to match system rail requirements including 3.3 V or 4.5 V for RF modules. |
| LDO output | 2.8 V default, 1.0–4.0 V in 100-mV steps, ±4% accuracy - supplies noise-sensitive analog or reference circuits with 28 dB PSRR at 10 kHz. |
| BuckMINI output | Factory-set to 2.2 V, 1.8–3.3 V programmable, 30 mA max, 5% accuracy - delivers regulated microcontroller bias with 300-nA quiescent current in deep sleep. |
| VMAX function | Outputs highest of BB_OUT or VIN (or VIN minus diode drop), with 8-step rising/falling threshold selection - enables automatic source switchover without host intervention. |
| Recovery comparator | Configurable 1.7–3.1 V rising threshold and 2.4–3.1 V falling threshold, ±3% accuracy - triggers re-enabling of power blocks after brownout recovery. |
| Package | 24-pin RHF (4 mm × 4 mm QFN) with exposed thermal pad - supports high-density PCB layouts and efficient heat dissipation up to 1.3 W at 85°C ambient. |
Pinout & Package
TPS65290BMRHFR uses a 24-pin RHF QFN package (4 mm × 4 mm, 0.5-mm pitch) with an exposed thermal pad connected to AGND/PGND. Pin functions are validated per TI SLVSBY5A datasheet Rev. May 2013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BB_VIN | Buck-boost input | Direct connection to battery or intermediate rail; supports 1.8–5 V operation. |
| BB_LX1 / BB_LX2 | Switching nodes | Connect to external inductors; require low-ESR ceramic capacitors for stability. |
| BB_OUT | Buck-boost output | Main system power rail; feeds PWR_BB1/PWR_BB2 switches and VMAX selector. |
| VIN | Battery input | Primary system input; powers CE logic, recovery comparator, and VMAX reference. |
| VMAX | Analog multiplexer output | Delivers highest available voltage (VIN or BB_OUT) - used for backup power or dynamic rail selection. |
| LDO_IN / LDO_OUT | LDO input/output | Supports 2.2–5 V input; provides 150-mA regulated output with 300-mV dropout at full load. |
| VMICRO | BuckMINI output | 30-mA regulated bias rail for MCU core; factory-configured for 300-nA IQ deep-sleep operation. |
| CE | Chip enable | Active-high control: enables SPI/I²C, switches, and buck-boost; low state activates BuckMINI and disables INT. |
| BB_EN | Buck-boost enable | Hardware override for buck-boost; independent of CE - allows sequenced power-up. |
| INT | Interrupt output | Push-pull active-low signal indicating fault, comparator trip, or register update completion. |
| MOSI/SDA, MISO, CS, SCL/SCK | Serial interface | Factory-configured for SPI or I²C; internal pull-up/pull-down resistors eliminate external components. |
| PWR_BB1 / PWR_BB2 / PWR_LDO1 / PWR_LDO2 / PWR_VMAX / PWR_VIN / PWR_BB_LDO / PWR_MICRO_LDO | Power distribution switches | Eight NMOS/P-channel switches with on-resistances from 100 mΩ to 1000 mΩ - enable flexible load powering and isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-selectable SPI/I²C interface | Reduces BOM count by integrating bus pull-up/down resistors - SPI preferred for lower average IQ in duty-cycled systems. |
| BuckMINI always-on converter | 30-mA regulated output with 300-nA quiescent current - sustains MCU real-time clock and wake-up logic during multi-year battery operation. |
| VMAX analog multiplexer | Automatically selects highest of BB_OUT or VIN with user-programmable hysteresis - eliminates need for external OR-ing diodes or ideal diode controllers. |
| Integrated input voltage recovery comparator | 8-step rising/falling thresholds (1.7–3.1 V) with ±3% accuracy - autonomously restores power to downstream rails after brownout without host CPU involvement. |
| Eight configurable power switches | Individually controllable NMOS/P-channel switches with 100–1000 mΩ RDS(on) - enables dynamic load partitioning, sleep-state isolation, and fail-safe shutdown sequences. |
Applications
| Flow Meter Power Management | Industrial Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered ultrasonic flow meter operating for >10 years on primary cell, requiring periodic measurement bursts and long idle periods. IC Role / Device Role / Timing Role: TPS65290BMRHFR manages all power domains: BuckMINI powers MCU in deep sleep (300-nA IQ), buck-boost powers ADC and transducer during measurement, LDO supplies precision reference. Use Value: Extends battery life by minimizing sleep-mode current while enabling fast wake-up (<330 µs buck-boost startup) and accurate voltage monitoring via recovery comparator. | Use Scenario: LoRaWAN-enabled temperature/humidity sensor deployed in remote infrastructure with no maintenance access. IC Role / Device Role / Timing Role: TPS65290BMRHFR acts as central power arbiter: VMAX selects optimal source (solar harvester or battery), PWR_BB_LDO connects BB_OUT to LDO for efficiency boost, and GPIO-controlled switches isolate RF front-end during sleep. Use Value: Achieves <1 µA system standby by combining BuckMINI bias, zero-leakage switch control, and autonomous source switchover - eliminating manual power sequencing firmware. |
| Handheld Industrial Scanner | Low-Power Fitness Tracker |
Use Scenario: Rugged barcode scanner powered by rechargeable Li-ion, requiring instant-on capability and USB charging compatibility. IC Role / Device Role / Timing Role: TPS65290BMRHFR provides dual-path power: PWR_VIN powers display and laser driver from battery; BB_OUT powers image sensor and processor; VMAX ensures seamless transition when USB charger is connected. Use Value: Eliminates external power-path controller; VMAX's diode-drop mode prevents backfeed into battery during charging while maintaining system uptime. | Use Scenario: Wearable fitness band using coin-cell battery, needing continuous accelerometer logging and periodic BLE transmission. IC Role / Device Role / Timing Role: TPS65290BMRHFR supplies VMICRO to MCU core (BuckMINI), LDO_OUT to BLE radio, and PWR_BB2 to motion sensor - all independently switchable via I²C to minimize active current. Use Value: Reduces total system IQ by 40% vs discrete solutions via integrated bias rail, programmable LDO voltage (to match BLE VDD min), and zero-power GPIO retention during sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65290LMRHFR | Features 10-mA LDOMINI low-IQ LDO (400-nA IQ) instead of 30-mA BuckMINI; same pinout and interface. | Optimized for sub-10-mA microcontroller bias loads where ripple sensitivity outweighs current demand. | Select when system MCU sleep current ≤10 mA and ultra-low-noise bias is required over higher current capability. |
| TPS65290ZBRHFR | Uses zero-drop adjustable bias (100-nA IQ, unregulated VIN–1.4 V output) instead of BuckMINI; identical package and control logic. | Suited for fixed-voltage MCU cores where regulation is unnecessary and absolute minimum IQ is critical. | Choose when bias rail voltage tolerance >10% is acceptable and longest possible battery life is prioritized over output regulation. |
Compared with TPS65290LMRHFR and TPS65290ZBRHFR, the TPS65290BMRHFR uniquely delivers 30-mA regulated BuckMINI output with 300-nA quiescent current - making it the only variant capable of powering higher-current MCUs (e.g., ARM Cortex-M4) in deep sleep while maintaining tight voltage accuracy and low ripple.
Availability
TPS65290BMRHFR is available at Aetrix Electronics and suitable for battery-powered industrial sensors, energy harvesting flow meters, and handheld test equipment requiring stable component supply across extended product lifecycles.
Supply support for TPS65290BMRHFR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in power management ICs for industrial, automotive, and portable applications.
The TPS65290 product line was designed specifically for ultra-low-power, multi-rail energy harvesting and battery-operated systems - integrating buck-boost conversion, LDO regulation, intelligent power switching, and adaptive bias generation in a single compact package.
FAQ
What is the factory-configured interface mode for TPS65290BMRHFR?
The TPS65290BMRHFR is factory-configured for SPI interface operation. This is indicated by the "BM" suffix in the part number and confirmed in TI's ordering table, where TPS65290BM denotes the BuckMINI variant with SPI default. Internal pull-down resistors on CS, MOSI, and MISO ensure reliable SPI boot-up without external components.
How does the BuckMINI function differ from the main buck-boost converter in TPS65290BMRHFR?
The BuckMINI in TPS65290BMRHFR is a dedicated 30-mA hysteretic DC-DC converter optimized for ultra-low-quiescent-current operation (300 nA), whereas the main buck-boost delivers up to 500 mA with PFM/PWM control. BuckMINI requires an external 33-μH inductor and operates independently - it remains active during CE=low (deep sleep), powering VMICRO, while the main converter shuts down.
Can TPS65290BMRHFR support automatic power source selection between battery and buck-boost output?
Yes. The TPS65290BMRHFR implements this via its VMAX block, which outputs the higher of VIN (battery) or BB_OUT (buck-boost). Configuration bits allow selection of three modes: direct MAX(VIN, BB_OUT), VIN-only, or MAX(VIN, BB_OUT) minus diode drop - enabling seamless, hardware-based source arbitration without MCU intervention or external components.
What is the maximum allowable load current on the PWR_BB1 switch of TPS65290BMRHFR?
The PWR_BB1 switch in TPS65290BMRHFR supports up to 800 mA continuous current with a typical on-resistance of 100 mΩ at VIN = 3.6 V and TA = 25°C. This rating is validated under recommended operating conditions and assumes proper PCB thermal design with the exposed thermal pad soldered to ground plane.
Does TPS65290BMRHFR include thermal protection, and how does it behave under overload?
Yes, TPS65290BMRHFR features dual thermal protection: buck-boost-specific shutdown at 141°C (12°C hysteresis) and full-IC shutdown at 160°C (20°C hysteresis). During overload, the buck-boost converter limits peak switch current to 2.4 A and reduces duty cycle; if junction temperature exceeds threshold, it latches off until cool-down, while BuckMINI and LDO remain operational to sustain bias rails.
TPS65290BMRHFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Converter, Energy Harvesting
- Voltage - Input:
- 2.2V ~ 5V
- Number of Outputs:
- 3
- Voltage - Output:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (5x4)
TPS65290BMRHFR FAQ
1.How can I place an order for TPS65290BMRHFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS65290BMRHFR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS65290BMRHFR reliable?
The price and inventory of TPS65290BMRHFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS65290BMRHFR is usually 5 days.
3.What payment methods are accepted for TPS65290BMRHFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS65290BMRHFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS65290BMRHFR?
TPS65290BMRHFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS65290BMRHFR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS65290BMRHFR?
For technical support, including TPS65290BMRHFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS65290BMRHFR requirements.
6.How does Aetrix verify that TPS65290BMRHFR is sourced from the original manufacturer or authorized distributors?
All TPS65290BMRHFR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS65290BMRHFR meets industry standards.
7.What is the process for return or replacement of TPS65290BMRHFR?
All TPS65290BMRHFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS65290BMRHFR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS65290BMRHFR part is unused and in its original packaging.
Return procedure for TPS65290BMRHFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS65290BMRHFR Tags
-
TPS51206DSQR
Texas Instruments
-
TPS51200DRCR
Texas Instruments
-
TPS51200DRCT
Texas Instruments
-
TPS62740DSSR
Texas Instruments
-
TPS51100DGQR
Texas Instruments
-
NCP51200MNTXG
onsemi
-
NCP51400MNTXG
onsemi
-
RT9026GSP
Richtek USA Inc.
-
LP2998MRX/NOPB
Texas Instruments
-
TPS51200QDRCRQ1
Texas Instruments
-
DPA423GN-TL
Power Integrations
-
LM10011SD/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
