My Inquiry
My Account
Texas Instruments TPS65290ZBRHFR
- Part No.:
- TPS65290ZBRHFR
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS65290ZBRHFR.pdf
- Description:
- IC REG CONV ENERGY 3OUT 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,797
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS65290ZBRHFR from Texas Instruments is a low-quiescent-current, multi-mode power management IC (PMIC) integrating a 500-mA buck-boost converter, a 150-mA LDO, eight programmable power distribution switches, and a factory-configured zero-leakage adjustable bias supply (10 mA / 100 nA IDDQ). 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 TPS65290ZBRHFR datasheet, TPS65290ZBRHFR pinout, TPS65290ZBRHFR application, or TPS65290ZBRHFR equivalent, key selection criteria include its ultra-low 100-nA always-on bias current, factory-set zero-drop VMICRO output, 24-pin QFN RHF package with thermal pad, integrated recovery comparator, and configurable PFM/PWM operation mode.
Technical Context
The TPS65290ZBRHFR implements a dual-phase buck-boost topology with internal high- and low-side MOSFETs (120 mΩ each), selectable PFM/PWM operation, and forced PWM mode for consistent switching frequency (1.6 MHz typical). Its zero-leakage bias circuit delivers unregulated VMICRO output with 0.6–2.0 V drop steps from VIN, enabling microcontroller deep-sleep operation without regulation overhead.
Control logic integrates factory-configured I²C/SPI interface, interrupt-driven status reporting (INT pin), and GPIO-controlled enable sequencing (CE, BB_EN). The VMAX analog multiplexer selects the higher of BB_OUT or VIN, while eight independent power switches (PWR_BB1/BB2/VMAX/LDO1/LDO2/VIN/BB_LDO/MICRO_LDO) support flexible rail routing with on-resistances from 100 mΩ to 1 Ω.
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 regulators |
| Buck-Boost Output Current | 500 mA - sufficient to power two downstream power switches or an MCU + peripheral rail |
| LDO Output Current | 150 mA - delivers stable 2.8 V (default) for analog sensors or communication interfaces |
| Always-On Bias Quiescent Current | 100 nA - enables multi-year battery life in deep-sleep IoT nodes with 10 mA VMICRO load |
| VMICRO Output Type | Zero-drop adjustable bias - unregulated output with 200 mV step resolution; no feedback loop or external components required |
| Package | 24-pin RHF QFN (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad - optimized for compact industrial PCB layouts |
| Operating Temperature | –40°C to +85°C ambient - qualified for flow meters, handheld instrumentation, and remote monitoring equipment |
Pinout & Package
TPS65290ZBRHFR 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 |
|---|---|---|
| VIN | Battery input | Main system supply input (2.2–5 V); powers all blocks except VMICRO bias when CE=low |
| BB_VIN | Buck-boost input | Dedicated input for buck-boost stage; decoupled separately for optimal efficiency |
| BB_OUT | Buck-boost output | Regulated output (1.0–5.0 V, 200 mV steps); feeds PWR_BB1/BB2 and VMAX multiplexer |
| LDO_IN / LDO_OUT | LDO input/output | 150 mA LDO with 2.8 V default; 32-step programmable output (1–4 V) and 300 mV dropout |
| VMAX | Analog multiplexer output | Auto-selects higher voltage between BB_OUT and VIN; used for highest-priority system rail |
| VMICRO | Zero-leakage bias output | Factory-configured unregulated output (VIN – 0.6–2.0 V); 100 nA IQQ enables decade-scale battery life |
| CE | Chip enable | Active-low master enable: low = deep sleep + VMICRO on + INT disabled; high = full PMIC operation |
| BB_EN | Buck-boost enable | Independent control of buck-boost converter; allows dynamic power-state partitioning |
| INT | Interrupt output | Push-pull active-low signal indicating fault, UVLO, or comparator event; maskable via register |
| MOSI/SDA, MISO, SCL/SCK, CS | Serial interface | Factory-configured I²C or SPI bus; includes internal pull-up/down resistors to minimize BOM count |
Key Features
| Feature | Design Value |
|---|---|
| Zero-leakage VMICRO bias | 100 nA quiescent current with 10 mA output capability - eliminates regulator overhead for MCU sleep domains |
| Integrated recovery comparator | Configurable rising/falling thresholds (1.7–3.1 V) with ±3% accuracy - enables autonomous wake-up from energy harvesting sources |
| Eight independent power switches | On-resistances from 100 mΩ (PWR_BB1) to 1 Ω (PWR_BB_LDO); each controllable via register or GPIO |
| Internal compensation & dividers | Buck-boost and LDO compensation networks, VIN monitor divider, and I²C pull-ups built-in - reduces external component count by ≥7 passive parts |
| Thermal protection | Dual-level shutdown: 141°C for buck-boost stage, 160°C for full IC - prevents damage during sustained overload or poor heatsinking |
Applications
| Flow Meter Power Management | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered ultrasonic or magnetic flow meter operating in remote locations with intermittent solar charging. IC Role / Device Role / Timing Role: TPS65290ZBRHFR acts as primary power arbiter: VMAX selects highest available source (battery or BB), VMICRO powers MCU in 100-nA deep sleep, and BB_EN triggers boost only during measurement bursts. Use Value: Extends battery life beyond 10 years by eliminating LDO regulation overhead during 99.9% sleep time and enabling precise wake-up via recovery comparator. |
Use Scenario: Low-power environmental sensor node transmitting temperature/humidity data every 5 minutes via BLE or LoRaWAN. IC Role / Device Role / Timing Role: TPS65290ZBRHFR supplies VMICRO to MCU core in deep sleep, powers RF transceiver from PWR_BB1 during TX, and uses PWR_LDO1 for analog front-end during sampling. Use Value: Achieves sub-1 μA system sleep current using zero-drop VMICRO bias and disables unused rails via register-controlled switches. |
| Industrial Handheld Instrument | Energy Harvesting Data Logger |
Use Scenario: Ruggedized handheld multimeter or clamp meter with rechargeable Li-ion battery and LCD display. IC Role / Device Role / Timing Role: TPS65290ZBRHFR provides regulated 2.8 V LDO output for display driver, 4.5 V BB_OUT for op-amp rails, and VMICRO for ARM Cortex-M0+ processor core. Use Value: Single-chip solution replaces discrete LDO + boost + bias supply, reducing PCB area by 45% and BOM cost by $0.32/unit at volume. |
Use Scenario: Vibration- or thermal-energy-harvesting logger deployed on rotating machinery with micro-watt input power. IC Role / Device Role / Timing Role: TPS65290ZBRHFR monitors harvested voltage via recovery comparator, enables BB only when storage capacitor reaches threshold, and powers MCU from VMICRO during data processing. Use Value: Autonomous start-up and rail sequencing eliminate need for external supervisor IC, reducing system complexity and failure points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65290LMRHFR | Features LDOMINI bias (10 mA / 400 nA IDDQ, regulated 1.8–3.3 V output) instead of zero-leakage option | Preferred where MCU requires stable voltage during sleep (e.g., RTC retention), not ultra-low IQQ | Select when regulated VMICRO is mandatory and 400 nA IQQ is acceptable |
| TPS65290BMRHFR | Includes BuckMINI converter (30 mA / 300 nA IDDQ, 1.8–3.3 V, requires external inductor) | Suitable for systems needing higher bias current with moderate ripple tolerance (e.g., sensor signal chain bias) | Choose when >10 mA VMICRO current is needed and board space allows 0603 inductor |
Compared with TPS65290LMRHFR and TPS65290BMRHFR, the TPS65290ZBRHFR uniquely delivers the lowest possible 100-nA quiescent current for VMICRO, making it the sole choice for multi-decade battery life in intermittently active sensing nodes where regulation is unnecessary during sleep.
Availability
TPS65290ZBRHFR is available at Aetrix Electronics and suitable for flow meter design, wireless sensor node development, and industrial handheld instrumentation requiring stable component supply across extended production lifecycles.
Supply support for TPS65290ZBRHFR 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 leader specializing in analog, embedded processing, and power management technologies with over 50 years of innovation in industrial and automotive applications.
The TPS65290 product line was designed specifically for ultra-low-power, battery- and energy-harvesting–powered systems requiring intelligent power arbitration, deep-sleep bias, and multi-rail flexibility in compact form factors.
FAQ
What is the factory-configured interface mode for TPS65290ZBRHFR?
The TPS65290ZBRHFR is factory-configured for SPI interface operation. This is indicated by the "ZB" suffix denoting zero-leakage bias and confirmed in TI's ordering table where TPS65290ZBRHFR maps to SPI-enabled variants. Internal pull-down resistors on CS, MOSI, and MISO pins ensure reliable SPI initialization without external components.
How does the zero-leakage VMICRO output function in TPS65290ZBRHFR?
The TPS65290ZBRHFR's VMICRO pin delivers an unregulated output equal to VIN minus a factory-programmed drop (0.6–2.0 V in 200 mV steps). With only 100 nA quiescent current, it powers microcontroller cores during deep sleep without regulation overhead. No external feedback or compensation is needed - the drop is fixed at wafer level.
What is the maximum continuous current supported by the buck-boost converter in TPS65290ZBRHFR?
The TPS65290ZBRHFR buck-boost converter supports up to 500 mA continuous output current. This rating holds across the full input range (2.2–5 V) and ambient temperature (–40°C to +85°C), verified under PWM mode with proper thermal layout and 4.7 μF output capacitance per TI SLVSBY5A Figure 1–6.
Can TPS65290ZBRHFR operate without I²C/SPI communication?
Yes - the TPS65290ZBRHFR supports fully stand-alone operation. Core functions (buck-boost, LDO, VMICRO, power switches) are enabled via hardware pins (CE, BB_EN) without serial bus interaction. I²C/SPI is optional for dynamic configuration, status readback, and interrupt masking.
What thermal protection mechanisms are implemented in TPS65290ZBRHFR?
The TPS65290ZBRHFR features dual thermal protection: buck-boost–specific shutdown at 141°C (12°C hysteresis) and full-IC shutdown at 160°C (20°C hysteresis). These thresholds are hard-coded and non-adjustable, ensuring robust operation under sustained overload or inadequate PCB copper area.
TPS65290ZBRHFR 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)
TPS65290ZBRHFR FAQ
1.How can I place an order for TPS65290ZBRHFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS65290ZBRHFR 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 TPS65290ZBRHFR reliable?
The price and inventory of TPS65290ZBRHFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS65290ZBRHFR is usually 5 days.
3.What payment methods are accepted for TPS65290ZBRHFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS65290ZBRHFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS65290ZBRHFR?
TPS65290ZBRHFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS65290ZBRHFR 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 TPS65290ZBRHFR?
For technical support, including TPS65290ZBRHFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS65290ZBRHFR requirements.
6.How does Aetrix verify that TPS65290ZBRHFR is sourced from the original manufacturer or authorized distributors?
All TPS65290ZBRHFR 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 TPS65290ZBRHFR meets industry standards.
7.What is the process for return or replacement of TPS65290ZBRHFR?
All TPS65290ZBRHFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS65290ZBRHFR, 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 TPS65290ZBRHFR part is unused and in its original packaging.
Return procedure for TPS65290ZBRHFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS65290ZBRHFR 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…
