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Texas Instruments TPS610994YFFT
- Part No.:
- TPS610994YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS610994YFFT.pdf
- Description:
- IC REG BOOST 3.3V 800MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,406
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Product details
Overview
TPS610994YFFT from Texas Instruments is a synchronous boost converter optimized for ultra-low-power battery-powered systems, delivering fixed 3.3V output with 600nA quiescent current into VOUT and 400nA into VIN, operating from 0.7V to 5.5V input, and supporting up to 300mA load with 93% peak efficiency - deployed in optical heart rate monitors and memory LCD bias circuits.
For engineers reviewing the TPS610994YFFT datasheet, TPS610994YFFT pinout, TPS610994YFFT application, or TPS610994YFFT equivalent, key selection criteria include its 3.3V fixed-output accuracy (±2.3% over temperature), true load disconnection in shutdown (<0.5µA VIN leakage), hysteretic control enabling burst-mode operation at µA loads, and WCSP package compatibility with space-constrained wearable PCBs.
Technical Context
The TPS610994YFFT implements a hysteretic current-mode control architecture that dynamically adjusts switching frequency and enters burst mode below ~100µA load to sustain 75% efficiency at 10µA - critical for coin-cell longevity. Its down-mode regulation maintains stable 3.3V output even when VIN exceeds VOUT (up to VIN = VOUT + 0.5V), transitioning seamlessly to pass-through operation beyond that threshold.
It integrates cycle-by-cycle overcurrent protection (0.8–1.25A switch current limit), thermal shutdown at 150°C with 25°C hysteresis, and output overvoltage protection clamping at 5.8V. The FB pin is internally tied to GND for fixed-output configuration, eliminating external resistors and reducing BOM count in compact designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.3V ±2.3% (3.23–3.37V in PWM mode, 3.4V in PFM mode) - ensures stable bias for low-noise analog sensors. |
| Quiescent current (VIN) | 400nA typical - extends alkaline/coin-cell battery life beyond 10 years in always-on wearables. |
| Quiescent current (VOUT) | 600nA typical - enables ultra-low standby power in memory LCD hold modes. |
| Input voltage range | 0.7V to 5.5V - supports single-cell Li-ion (2.7–4.2V), NiMH (0.9–1.4V/cell), and alkaline (0.7–1.5V/cell) without pre-regulation. |
| Switch current limit | 0.8A minimum - sustains 300mA output at 3.3V from 3.6V input with margin for transient loads. |
| Efficiency @ 10µA | Up to 75% - preserves >90% of battery capacity during long idle periods in optical HRM LEDs. |
| Efficiency @ 200mA | Up to 93% - delivers high conversion efficiency during active sensor measurement bursts. |
| Shutdown current | ≤0.5µA into VIN - guarantees true load isolation and eliminates parasitic drain in off-state. |
Pinout & Package
TPS610994YFFT uses a 6-ball, 1.23mm × 0.88mm DSBGA (WCSP) package with bottom-side solder balls and thermal pad connected to GND. This ultra-compact package enables <1.1mm² PCB footprint and supports automated reflow assembly for high-density wearable modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 0.7–5.5V source; connects to input capacitor and battery; UVLO triggers at 0.7V rising threshold. |
| SW | Power switch node | Drives external 2.2µH inductor; carries pulsed current up to 1.25A peak; requires low-ESR ceramic output cap. |
| EN | Enable logic input | Active-high control (VIH ≥1.2V); must be pulled high or low - floating prohibited; enables true shutdown. |
| GND | Power ground | Main return path for input/output currents; connects to thermal pad; must be solid copper pour for thermal relief. |
| VOUT | Regulated output | Delivers fixed 3.3V; supplies sensor bias or MCU I/O rails; decoupled with ≥10µF ceramic capacitor. |
| FB | Feedback reference | Internally shorted to GND for fixed 3.3V operation - no external resistor divider required. |
Key Features
| Feature | Design Value |
|---|---|
| Hysteretic burst-mode control | Enables automatic transition to ultra-low-IQ sleep state at µA loads while maintaining regulation - eliminates need for external enable sequencing. |
| Down-mode regulation | Maintains precise 3.3V output even when VIN rises above VOUT (up to VIN = VOUT + 0.5V), avoiding external LDO in hybrid supply architectures. |
| True shutdown disconnect | Breaks conduction path between VIN and VOUT using integrated PMOS rectifier - reduces system standby current to sub-µA levels. |
| Integrated OVP & thermal protection | Clamps output at 5.8V and halts switching at 150°C junction temperature - prevents damage during fault conditions without external components. |
| Fixed-output EEPROM programming | Eliminates external feedback resistors and layout sensitivity - reduces bill-of-materials and improves production yield in high-volume wearables. |
Applications
| Memory LCD Bias | Optical Heart Rate Monitor |
|---|---|
|
Use Scenario: Powering segment drivers and common electrode in bistable memory LCDs requiring stable 3.3V bias during display retention and update cycles. IC Role / Device Role / Timing Role: Primary voltage booster supplying regulated 3.3V rail with ultra-low quiescent current during multi-hour static display hold. Use Value: Enables >5-year battery life on CR2032 coin cell by sustaining 75% efficiency at 10µA load and consuming only 600nA into VOUT during idle. |
Use Scenario: Driving green/red LED arrays in wrist-worn photoplethysmography (PPG) sensors with precise current control and minimal thermal drift. IC Role / Device Role / Timing Role: Fixed 3.3V bias generator for LED driver ICs and analog front-end amplifiers during brief 10–50ms illumination bursts. Use Value: Delivers 93% efficiency at 200mA pulse loads while maintaining output accuracy within ±2.3% across –40°C to 85°C for consistent optical signal SNR. |
| Wearable Fitness Tracker | Low-Power Wireless Sensor Node |
|
Use Scenario: Supplying MCU core, BLE radio, and motion sensor subsystems from a single 3.0V nominal Li-ion cell across discharge profile (4.2V → 2.7V). IC Role / Device Role / Timing Role: Adaptive power manager providing seamless transition between boost, down-mode, and pass-through operation as battery voltage declines. Use Value: Eliminates need for discrete LDO + buck-boost combo by regulating 3.3V output across full battery range - reducing component count by 3+ devices. |
Use Scenario: Powering sub-GHz RF transceivers (e.g., TI CC1310) and environmental sensors in battery-operated IoT nodes with 10-year target lifetime. IC Role / Device Role / Timing Role: Primary DC-DC converter delivering clean 3.3V rail during 100ms transmit bursts and entering deep-sleep burst mode between transmissions. Use Value: Achieves 75% efficiency at 10µA sleep current and 93% at 200mA TX load - extending CR2477 battery life beyond 12 years per ANSI/ISA-18.2 guidelines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610995YFFT | Fixed 3.6V output; 3.53–3.67V accuracy; identical quiescent current and package. | Requires redesign of downstream 3.3V logic rails; unsuitable where 3.3V tolerance is strict (e.g., SPI interface voltage limits). | Select only if system voltage rails are compatible with 3.6V and higher output ripple is acceptable. |
| MAX17222ELT+T | 3.3V fixed output; 350nA IQ (VIN); 0.7–5.5V input; 300mA max; 2mm × 2mm WLP-6 package. | Lacks down-mode regulation - cannot maintain 3.3V when VIN > 3.3V; requires external LDO for battery voltages above 3.8V. | Prefer when board space allows larger WLP-6 and down-mode functionality is not needed. |
Compared with TPS610994YFFT, TPS610995YFFT offers higher output voltage but invalidates 3.3V-tolerant interfaces, while MAX17222ELT+T saves 50nA IQ but forfeits critical down-mode capability - making TPS610994YFFT uniquely suited for single-cell Li-ion systems requiring uninterrupted 3.3V rail across full discharge.
Availability
TPS610994YFFT is available at Aetrix Electronics and suitable for wearable fitness trackers, optical biosensors, and memory LCD displays requiring stable component supply with guaranteed long-term manufacturability and lifecycle support.
Supply support for TPS610994YFFT 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 ultra-low-power DC-DC conversion.
The TPS61099x product line was designed specifically for energy-constrained battery-powered applications - prioritizing nanoamp quiescent current, miniature WCSP packaging, and adaptive regulation modes to maximize runtime in wearables and medical sensors.
FAQ
What is the output voltage tolerance of the TPS610994YFFT across temperature and load?
The TPS610994YFFT delivers a fixed 3.3V output with ±2.3% accuracy (3.23–3.37V) under PWM mode at TJ = –40°C to 125°C and VIN < VOUT. In PFM mode, output rises to 3.4V - verified in Figure 6-15 of the SLVSD88M datasheet. Load regulation holds within ±15mV from 0 to 300mA, and temperature drift is limited to ±0.02V over –40°C to 125°C.
Does the TPS610994YFFT require external feedback resistors?
No. The TPS610994YFFT has internal EEPROM-programmed feedback, so the FB pin is internally connected to GND - eliminating external resistors and associated layout sensitivity. This simplifies design, reduces BOM cost, and improves production yield compared to adjustable versions like TPS61099YFFT.
How does the TPS610994YFFT behave when input voltage exceeds 3.3V?
When VIN rises above 3.3V, the TPS610994YFFT automatically enters down-mode regulation to maintain 3.3V output until VIN reaches VOUT + 0.5V (i.e., 3.8V). Beyond that, it transitions to pass-through mode where VOUT ≈ VIN − (IL × RDS(on)_HS + IL × DCR_L). This avoids unnecessary switching losses and extends battery life in mid-to-high SOC states.
What is the minimum startup input voltage for the TPS610994YFFT?
The TPS610994YFFT starts reliably from 0.7V input with a load ≤3kΩ, as confirmed in Section 7.3.4. Below 0.7V, UVLO prevents operation. Startup time depends on input voltage and load - e.g., from 0.7V to 3.3V output takes ~5ms into 10kΩ load, but may fail under heavy loads (>100mA) unless VIN ≥1.2V due to soft-start current limiting.
Is the TPS610994YFFT RoHS-compliant and REACH-compliant?
Yes. The TPS610994YFFT is manufactured in Texas Instruments' ISO 9001- and IATF 16949-certified facilities and meets RoHS Directive 2011/65/EU Annex II maximum concentration values and REACH SVHC thresholds. Full compliance documentation, including CoC and material declarations, is available via TI's Quality & Environmental page for orderable part TPS610994YFFT.
TPS610994YFFT 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
TPS610994YFFT FAQ
1.How can I place an order for TPS610994YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS610994YFFT 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 TPS610994YFFT reliable?
The price and inventory of TPS610994YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS610994YFFT is usually 5 days.
3.What payment methods are accepted for TPS610994YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS610994YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS610994YFFT?
TPS610994YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS610994YFFT 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 TPS610994YFFT?
For technical support, including TPS610994YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS610994YFFT requirements.
6.How does Aetrix verify that TPS610994YFFT is sourced from the original manufacturer or authorized distributors?
All TPS610994YFFT 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 TPS610994YFFT meets industry standards.
7.What is the process for return or replacement of TPS610994YFFT?
All TPS610994YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS610994YFFT, 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 TPS610994YFFT part is unused and in its original packaging.
Return procedure for TPS610994YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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