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Texas Instruments TPS610996YFFR
- Part No.:
- TPS610996YFFR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS610996YFFR.pdf
- Description:
- IC REG BOOST 4.5V 800MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,491
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Product details
Overview
TPS610996YFFR from Texas Instruments is a synchronous boost converter with ultra-low quiescent current (400nA into VIN, 600nA into VOUT), operating from 0.7V to 5.5V input and delivering a fixed 4.5V output. It features true shutdown disconnection, down-mode regulation, and hysteretic current-mode control - optimized for coin-cell and alkaline battery-powered wearable sensors and optical heart rate monitors.
For engineers reviewing the TPS610996YFFR datasheet, TPS610996YFFR pinout, TPS610996YFFR application, or TPS610996YFFR equivalent, key selection criteria include its 0.7V startup capability, 4.5V ±1% output accuracy in PWM mode, 0.8A peak switch current limit, 75% efficiency at 10µA load, and compatibility with 1.23mm × 0.88mm WCSP packaging for space-constrained designs.
Technical Context
The TPS610996YFFR implements a hysteretic current-mode control topology that dynamically adjusts switching frequency based on input voltage, output load, and inductor value - eliminating need for external compensation while maintaining high light-load efficiency. Its dual-mode operation supports regulated down-mode (VIN > VOUT) and pass-through (VIN ≥ VOUT + 0.5V), with automatic transition between modes governed by internal thresholds.
It integrates cycle-by-cycle overcurrent protection (OCP), thermal shutdown at 150°C with 25°C hysteresis, undervoltage lockout (UVLO) at 0.7V rising threshold, and output overvoltage protection (OVP) at 5.8V. The fixed 4.5V output is factory-programmed via EEPROM, eliminating external feedback resistors and reducing BOM count.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.5V ±1% (PWM mode), enabling precise biasing without external resistor divider |
| Input Voltage Range | 0.7V to 5.5V - supports single-cell alkaline, NiMH, Li-Mn, and rechargeable Li-ion batteries from depletion to full charge |
| Quiescent Current | 400nA into VIN / 600nA into VOUT - extends battery life in always-on wearable and sensor applications |
| Peak Switch Current Limit | 0.8A minimum - sustains up to 300mA output current during 3.3V→4.5V conversion |
| Efficiency @ Light Load | 75% at 10µA load - critical for memory LCD and optical HRM LED bias where microamp-level loads dominate |
| Shutdown Current | ≤1.6µA into VIN - ensures true load disconnection and near-zero standby drain |
| UVLO Threshold | 0.7V rising, 0.5V hysteresis - prevents erratic operation during battery brownout and enables reliable cold-start |
Pinout & Package
TPS610996YFFR uses the YFF package: a 6-ball, 1.23mm × 0.88mm DSBGA (WCSP) with bottom-side solder balls. This ultra-compact wafer-level chip-scale package is optimized for minimal PCB footprint in wearables and compact IoT endpoints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 0.7–5.5V supply; connects to battery or intermediate rail; UVLO and OCP monitoring originate here |
| SW | Switch node | Drives external 2.2µH inductor; carries pulsed current up to 0.8A peak; requires low-inductance layout to minimize EMI |
| EN | Enable control | Logic-compatible input (VIH = 1.2V min); floating prohibited; controls true shutdown with <1.6µA leakage |
| GND | Power ground | Primary return path for switch current and IC bias; must be connected to thermal pad for optimal thermal performance |
| VOUT | Regulated output | Delivers fixed 4.5V; supplies load directly; includes OVP clamp at 5.8V and down-mode regulation logic |
| FB | Feedback reference | Internally tied to GND for fixed-output operation; unused externally; not connected in TPS610996YFFR design |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ architecture | 400nA VIN IQ enables >1-year runtime on CR2032 in 10µA average-load applications like optical HRM |
| Down-mode regulation | Maintains stable 4.5V output even when VIN rises above 4.5V (e.g., fresh Li-ion), avoiding external LDO |
| True shutdown disconnection | Breaks input-to-output path completely - eliminates reverse leakage and enables zero-current sleep states |
| Hysteretic current-mode control | Self-compensating, no external compensation required; adapts frequency to load/line conditions for consistent light-load efficiency |
| Factory-trimmed 4.5V output | ±1% accuracy at 4.5V eliminates resistor tolerance errors and board space for feedback network |
Applications
| Memory LCD Bias | Optical Heart Rate Monitor |
|---|---|
Use Scenario: Powering segment drivers and common electrode in bistable memory LCDs used in smartwatches and e-readers. IC Role / Device Role / Timing Role: Fixed 4.5V bias generator with sub-µA quiescent draw during display retention. Use Value: Eliminates need for external feedback and reduces solution size by >30% vs adjustable boost converters. |
Use Scenario: Driving green/red LEDs in photoplethysmography (PPG) circuits for wrist-worn health monitors. IC Role / Device Role / Timing Role: Low-noise, high-accuracy 4.5V LED bias source synchronized to ADC sampling windows. Use Value: Enables 10µA pulse-mode LED drive with 75% efficiency - extending CR2032 battery life beyond 6 months. |
| Wearable Sensor Hub | Low-Power Wireless Node |
Use Scenario: Supplying 4.5V to MEMS accelerometers, gyroscopes, and environmental sensors in hearables and fitness bands. IC Role / Device Role / Timing Role: Always-on power rail with true shutdown during MCU deep-sleep cycles. Use Value: Achieves <1µA system standby current by combining TPS610996YFFR's 400nA IQ and complete load isolation. |
Use Scenario: Powering BLE 5.0 or Zigbee transceivers (e.g., CC2652R) requiring stable 4.5V during TX bursts. IC Role / Device Role / Timing Role: High-efficiency boost stage supporting 300mA peak current for 20ms RF transmit events. Use Value: Delivers 93% efficiency at 200mA, minimizing thermal rise and preserving battery capacity across wireless duty cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610994YFFR | Fixed 3.3V output; identical IQ, package, and functional modes | Suitable for 3.3V logic rails or low-voltage sensors - not interchangeable without redesigning output filtering and load interface | Select when system requires 3.3V instead of 4.5V; same PCB layout but different output capacitor voltage rating |
| TPS610995YFFR | Fixed 3.6V output; same quiescent current, package, and down-mode behavior | Targets mid-range analog front-ends (e.g., ADC references, op-amp supplies) needing tighter regulation than 3.3V but lower than 4.5V | Choose for mixed-signal sensor nodes where 3.6V improves SNR vs 3.3V without overdesigning for 4.5V headroom |
Compared with TPS610994YFFR and TPS610995YFFR, the TPS610996YFFR provides higher output voltage essential for driving legacy memory LCDs and high-brightness PPG LEDs - making it the only option among the three for applications requiring ≥4.4V regulated bias under ultra-low IQ constraints.
Availability
TPS610996YFFR is available at Aetrix Electronics and suitable for wearable sensor hubs, optical heart rate monitors, memory LCD displays, and low-power wireless nodes requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS610996YFFR 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, embedded processing, and power management technologies, with decades of leadership in battery-efficient power conversion.
The TPS61099x family was designed specifically for ultra-low-power portable electronics - targeting extended battery life in coin-cell and single-cell battery systems through minimized quiescent current and intelligent operational mode transitions.
FAQ
What is the output voltage tolerance of the TPS610996YFFR under varying load and temperature?
The TPS610996YFFR delivers 4.4V to 4.6V output in PWM mode across –40°C to 125°C junction temperature and full load range. At 25°C and nominal input, typical output is 4.5V ±1%, with worst-case deviation limited to ±2.2% including line, load, and temperature effects per datasheet Section 6.5.
Does the TPS610996YFFR require external feedback resistors to set its output voltage?
No. The TPS610996YFFR has a factory-programmed 4.5V output stored in internal EEPROM. The FB pin is internally connected to GND, eliminating external resistors and associated tolerance errors - simplifying layout and improving accuracy versus adjustable variants like TPS61099.
How does the TPS610996YFFR behave when input voltage exceeds 4.5V?
When VIN rises above VOUT (4.5V), the TPS610996YFFR automatically enters down-mode regulation to maintain 4.5V output until VIN reaches VOUT + 0.5V (5.0V), then transitions to pass-through mode where VOUT ≈ VIN − (IL × RDS(on)_HS + IL × DCR_L). This avoids overvoltage stress on downstream loads.
Can the TPS610996YFFR start up from a 0.7V input with no load?
Yes. The TPS610996YFFR guarantees startup from 0.7V input with ≥3kΩ load (i.e., ≤333µA). With no load, startup succeeds if output capacitance is ≤100µF and PCB leakage is minimal - verified in TI's SLVSD88M datasheet Figure 8-1 and Section 7.3.4.
What thermal considerations apply to the TPS610996YFFR in its YFF package?
The YFF package has RθJA = 134.4°C/W. At 300mA output with 3.3V→4.5V conversion, power dissipation is ~150mW, resulting in ~20°C junction rise above ambient. Layout must connect the thermal ball (GND) to a solid copper plane; derate current above 85°C ambient per Section 6.4 thermal metrics.
TPS610996YFFR 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):
- 4.5V
- 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
TPS610996YFFR FAQ
1.How can I place an order for TPS610996YFFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS610996YFFR 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 TPS610996YFFR reliable?
The price and inventory of TPS610996YFFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS610996YFFR is usually 5 days.
3.What payment methods are accepted for TPS610996YFFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS610996YFFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS610996YFFR?
TPS610996YFFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS610996YFFR 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 TPS610996YFFR?
For technical support, including TPS610996YFFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS610996YFFR requirements.
6.How does Aetrix verify that TPS610996YFFR is sourced from the original manufacturer or authorized distributors?
All TPS610996YFFR 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 TPS610996YFFR meets industry standards.
7.What is the process for return or replacement of TPS610996YFFR?
All TPS610996YFFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS610996YFFR, 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 TPS610996YFFR part is unused and in its original packaging.
Return procedure for TPS610996YFFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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