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Texas Instruments TPS610994YFFR
- Part No.:
- TPS610994YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS610994YFFR.pdf
- Description:
- IC REG BOOST 3.3V 800MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,760
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Product details
Overview
TPS610994YFFR from Texas Instruments is a synchronous boost converter optimized for ultra-low-power battery-powered systems, delivering fixed 3.3V output with 3.23–3.37V accuracy at PWM mode, 0.7–5.5V input range, 0.8A peak switch current limit, and true load disconnection during shutdown - deployed in optical heart rate monitor LED bias and memory LCD applications.
For engineers reviewing the TPS610994YFFR datasheet, TPS610994YFFR pinout, TPS610994YFFR application, or TPS610994YFFR equivalent, key selection criteria include ultra-low quiescent current (400nA into VIN, 600nA into VOUT), hysteretic control topology for light-load efficiency, down-mode regulation capability, and WCSP package compatibility with space-constrained wearable designs.
Technical Context
The TPS610994YFFR implements a hysteretic current-mode control architecture that dynamically adjusts switching frequency based on input voltage, output voltage, and inductor value - enabling discontinuous conduction mode (DCM) and burst mode operation to maintain up to 75% efficiency at 10µA load. It supports three functional states: boost mode (VIN < VOUT − 50mV), down mode (VOUT − 50mV < VIN < VOUT + 0.5V), and pass-through mode (VIN ≥ VOUT + 0.5V), with regulated output maintained in down mode via PMOS gate control.
It integrates cycle-by-cycle overcurrent protection (OCP) with 0.8–1.25A current limit threshold, output overvoltage protection (OVP) at 5.6–6.0V, thermal shutdown at 150°C with 25°C hysteresis, and undervoltage lockout (UVLO) with 0.6–0.7V rising threshold and 200mV hysteresis - all operating across –40°C to 125°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±2.3% (3.23–3.37V) in PWM mode; enables stable bias for low-current sensors and displays without external feedback resistors. |
| Input Voltage Range | 0.7V to 5.5V - supports single-cell alkaline, NiMH, Li-Mn, and rechargeable Li-ion batteries across full discharge curve. |
| Quiescent Current | 400nA into VIN / 600nA into VOUT - minimizes standby power loss in always-on wearable subsystems. |
| Peak Switch Current Limit | 0.8A minimum - ensures robust transient response and supports up to 300mA output current in 3.3V-to-5V conversion. |
| Efficiency | Up to 75% at 10µA load (fixed-VOUT); up to 93% at 10–300mA load - extends battery life in intermittent-sensing applications. |
| Shutdown Current | <0.5µA into VIN - guarantees true disconnection and near-zero leakage when disabled. |
| Package | 6-ball DSBGA (YFF), 1.23mm × 0.88mm - enables ultra-compact PCB layout for space-critical wearables and medical patches. |
Pinout & Package
TPS610994YFFR uses a 6-ball, 1.23mm × 0.88mm DSBGA (WCSP) package with bottom-side solder balls. Pin mapping follows TI's YFF footprint: A1=VIN, B1=SW, C1=EN, A2=GND, B2=VOUT, C2=FB. The FB pin is internally connected to GND for fixed-output variants, eliminating external resistor divider requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 0.7–5.5V supply; connects to battery or energy-harvesting source; UVLO active below 0.6V. |
| SW | Switch node | Drives external 2.2µH inductor; carries pulsed current up to 0.8A peak; requires low-ESR ceramic capacitor routing. |
| EN | Enable logic input | Active-high control: ≥1.2V (VIN > 1.5V) enables device; ≤0.4V disables with true load disconnect; must not float. |
| GND | Power ground | Primary return path for input/output currents; connects to thermal pad (PowerPAD™) for thermal dissipation. |
| VOUT | Regulated output | Delivers fixed 3.3V; supplies bias to optical sensors, memory LCDs, or RF transceivers; requires 10µF output capacitance. |
| FB | Feedback reference | Internally shorted to GND for TPS610994YFFR - no external divider needed; unused in fixed-output configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Hysteretic current-mode control | Enables automatic transition between CCM, DCM, and burst mode - sustaining high efficiency from 10µA to 300mA without external compensation. |
| Down mode regulation | Maintains precise 3.3V output even when VIN exceeds VOUT (up to VOUT + 0.5V), using PMOS gate modulation instead of switching - critical for battery voltage tracking. |
| True shutdown disconnection | Breaks input-to-output path via fully off rectifying PMOS - reduces system standby current to sub-µA levels in sleep states. |
| Integrated OVP and thermal protection | OVP triggers at 5.6–6.0V to prevent damage from feedback fault; thermal shutdown activates at 150°C with 25°C hysteresis - ensures reliability in sealed enclosures. |
| Ultra-small WCSP package | 1.23mm × 0.88mm DSBGA footprint occupies <1 mm² PCB area - ideal for hearables, patch monitors, and coin-cell-powered IoT nodes. |
Applications
| Memory LCD Bias | Optical Heart Rate Monitor |
|---|---|
Use Scenario: Powering segment-based memory LCDs in smartwatches and fitness bands requiring stable 3.3V bias at µA-level quiescent current. IC Role / Device Role / Timing Role: Fixed-output boost regulator providing regulated VBIAS rail; operates in burst mode during display idle periods. Use Value: Enables >1-year battery life on CR2032 coin cell by maintaining 75% efficiency at 10µA load and reducing shutdown leakage to <0.5µA. |
Use Scenario: Driving green/red/IR LEDs in photoplethysmography (PPG) modules where pulse-width-modulated LED current demands clean, ripple-free 3.3V supply. IC Role / Device Role / Timing Role: Primary power stage for LED bias rail; enters down mode during high-VIN battery states to avoid unnecessary switching noise. Use Value: Delivers low-noise 3.3V output with <50mV ripple, minimizing optical signal interference while supporting 300mA peak LED pulses. |
| Wearable Sensor Hub | Low-Power Wireless Node |
Use Scenario: Supplying 3.3V to integrated environmental sensors (temperature, humidity, motion) in compact wearable patches with limited board area. IC Role / Device Role / Timing Role: Central power management IC; manages dynamic load transitions between sensor sampling (mA) and deep sleep (µA). Use Value: Achieves seamless mode transitions (boost → down → pass-through) without output droop or reset, preserving sensor data integrity across battery voltage swing. |
Use Scenario: Powering BLE or Sub-GHz transceivers (e.g., CC2652R) in battery-operated wireless sensors transmitting intermittently every 5–60 seconds. IC Role / Device Role / Timing Role: Efficient voltage booster for RF IC VDD rail; leverages 400nA VIN quiescent current to minimize average system power. Use Value: Extends CR2477 battery life beyond 5 years by sustaining 93% efficiency during 10–300mA transmit bursts and 75% at 10µA receive/idle states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610994DRVR | Same electrical specs and fixed 3.3V output, but in 2mm × 2mm WSON-6 package with exposed thermal pad - higher RθJA (71.7°C/W vs 134.4°C/W) and larger footprint. | Suitable for thermally demanding industrial designs where PCB real estate is less constrained and thermal vias can be added under PowerPAD™. | Select TPS610994DRVR only if thermal performance outweighs size constraints; YFF offers superior power density for wearables. |
| MAX17222ELT+T | Fixed 3.3V output, 350nA IQ, 0.5A switch limit, 0.65V min VIN - lacks down mode, pass-through, and OVP; uses current-mode PWM (not hysteretic). | Better for cost-sensitive, non-safety-critical consumer devices where input never exceeds output voltage and thermal margin is ample. | Choose MAX17222ELT+T only when down-mode regulation is unnecessary and board space allows larger 2.1mm × 2.1mm µDFN package. |
Compared with TPS610994DRVR and MAX17222ELT+T, the TPS610994YFFR uniquely combines ultra-low IQ, down-mode regulation, and sub-1mm² WCSP packaging - making it the only option capable of sustaining 3.3V bias across full battery discharge in space- and efficiency-critical wearables.
Availability
TPS610994YFFR is available at Aetrix Electronics and suitable for wearable sensor hubs, optical heart rate monitors, memory LCD bias circuits, and low-power wireless nodes requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS610994YFFR 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 decades of expertise in battery-efficient power conversion ICs.
The TPS61099x family was designed specifically for ultra-low-power portable electronics - targeting extended runtime in coin-cell and single-cell battery systems through minimal quiescent current and intelligent operational modes.
FAQ
What is the output voltage tolerance of the TPS610994YFFR under PWM mode?
The TPS610994YFFR delivers a fixed 3.3V output with ±2.3% accuracy (3.23V to 3.37V) under PWM mode conditions, as specified in the Electrical Characteristics table of the SLVSD88M datasheet. This tight tolerance ensures reliable biasing for precision analog sensors and memory LCDs without requiring post-regulation.
Does the TPS610994YFFR require external feedback resistors?
No, the TPS610994YFFR does not require external feedback resistors. As a fixed-output variant, its FB pin is internally connected to GND - eliminating the need for an external resistor divider and reducing BOM count and PCB area. This simplifies design and improves reliability in miniaturized wearables.
How does the TPS610994YFFR behave when input voltage exceeds 3.3V?
When VIN rises above 3.3V, the TPS610994YFFR automatically enters down mode (starting at VIN > VOUT − 50mV) to maintain regulated 3.3V output using PMOS gate modulation. At VIN ≥ 3.8V (VOUT + 0.5V), it transitions to pass-through mode where VOUT ≈ VIN − (IL × DCRL + IL × RDS(on)).
What is the minimum input voltage required for the TPS610994YFFR to start up?
The TPS610994YFFR can start up from as low as 0.7V input voltage with a load impedance greater than 3kΩ. Startup fails only if the load is too heavy to allow VOUT to rise above ~1.6V during soft-start - a condition mitigated by proper input capacitance (≥10µF) and controlled enable timing.
Is thermal derating required for the TPS610994YFFR in its YFF package?
Yes - the YFF package has a high junction-to-ambient thermal resistance (RθJA = 134.4°C/W). At 300mA output current with 3.3V output and 1.5V input, power dissipation reaches ~180mW, causing ~24°C junction rise above ambient. For continuous 300mA operation, ensure adequate copper area and thermal vias under the PowerPAD™ to avoid exceeding 125°C max operating junction temperature.
TPS610994YFFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 800mA (Switch)
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DSBGA
TPS610994YFFR FAQ
1.How can I place an order for TPS610994YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS610994YFFR 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 TPS610994YFFR reliable?
The price and inventory of TPS610994YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS610994YFFR is usually 5 days.
3.What payment methods are accepted for TPS610994YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS610994YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS610994YFFR?
TPS610994YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS610994YFFR 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 TPS610994YFFR?
For technical support, including TPS610994YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS610994YFFR requirements.
6.How does Aetrix verify that TPS610994YFFR is sourced from the original manufacturer or authorized distributors?
All TPS610994YFFR 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 TPS610994YFFR meets industry standards.
7.What is the process for return or replacement of TPS610994YFFR?
All TPS610994YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS610994YFFR, 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 TPS610994YFFR part is unused and in its original packaging.
Return procedure for TPS610994YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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