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Texas Instruments TPS610996YFFT
- Part No.:
- TPS610996YFFT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFBGA, DSBGA
- Datasheet:
-
TPS610996YFFT.pdf
- Description:
- IC REG BOOST 4.5V 800MA 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:517
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Product details
Overview
TPS610996YFFT 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 with ±2% accuracy. It features true shutdown disconnection, down-mode regulation, and pass-through operation-designed for battery-powered wearable and optical sensor systems requiring multi-decade runtime.
For engineers reviewing the TPS610996YFFT datasheet, TPS610996YFFT pinout, TPS610996YFFT application, or TPS610996YFFT equivalent, key selection criteria include its 0.7V startup capability, 4.5V fixed output tolerance, hysteretic control architecture, 6-ball WCSP package footprint, and verified performance at 10µA–300mA loads across alkaline, Li-Mn, and Li-ion sources.
Technical Context
The TPS610996YFFT implements a hysteretic current-mode control topology that eliminates fixed-frequency switching losses and enables burst-mode operation under light loads-achieving up to 75% efficiency at 10µA and 93% at 200mA. Its down-mode regulation maintains 4.5V output even when VIN exceeds VOUT, transitioning automatically to pass-through mode when VIN > VOUT + 0.5V.
It integrates cycle-by-cycle overcurrent protection (0.8–1.25A switch current limit), thermal shutdown (150°C trip), output overvoltage protection (5.8V threshold), and undervoltage lockout (0.7V rising threshold with 200mV hysteresis). The device uses internal EEPROM to store its fixed 4.5V configuration and supports EN-controlled enable/disable with <0.5µA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 4.5V ±2% (programmed via internal EEPROM; no external feedback required) |
| 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 - enables >10-year battery life in µA-load applications like memory LCD bias |
| Peak switch current limit | 0.8A minimum - sustains regulated 4.5V output up to 300mA load in boost mode |
| Efficiency | Up to 75% at 10µA load; up to 93% at 200mA - validated across VIN = 0.7V–4.2V and VOUT = 4.5V |
| UVLO threshold | 0.7V (rising), 0.5V (falling) - prevents erratic operation during battery brownout and ensures clean restart |
| OVP threshold | 5.8V with 100–200mV hysteresis - protects downstream circuitry if feedback network fails or is omitted |
Pinout & Package
TPS610996YFFT is packaged in a 6-ball, 1.23mm × 0.88mm DSBGA (WCSP) with bottom-side solder balls and thermal pad connected to GND. The package is optimized for ultra-compact, low-profile wearable PCBs and supports reflow assembly per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies IC core and power stage; accepts 0.7–5.5V; connects to battery or source with ≥1µF ceramic capacitor |
| SW | Switch node | Drives external 2.2µH inductor; high dv/dt node requiring tight layout and ground shielding |
| EN | Digital enable input | Active-high logic control (VIH ≥1.2V, VIL ≤0.4V); must not float; pulls to GND for true shutdown |
| GND | Power and signal reference | Primary return path for input/output currents; connects directly to thermal pad for thermal management |
| VOUT | Regulated output | Delivers fixed 4.5V; requires ≥10µF ceramic output capacitor; supplies load directly in pass-through mode |
| FB | Feedback terminal | Internally shorted to GND for fixed-output variants; left unconnected in TPS610996YFFT (no external divider needed) |
Key Features
| Feature | Design Value |
|---|---|
| Hysteretic current-mode control | Eliminates clock and error amplifier-reducing IQ to sub-µA while enabling automatic burst mode below 100µA load |
| Down-mode regulation | Maintains 4.5V output even when VIN rises above 4.5V (e.g., fresh Li-ion at 4.2V → 4.5V), using PMOS gate modulation instead of switching |
| True shutdown disconnection | Breaks VIN-to-VOUT path completely; draws ≤0.5µA total shutdown current-critical for zero-leakage standby in wearables |
| Pass-through operation | Disables switching and fully turns on rectifying PMOS when VIN > VOUT + 0.5V-minimizing conduction loss and heat rise |
| Integrated OVP and thermal shutdown | 5.8V output overvoltage cutoff with auto-recovery; 150°C junction thermal shutdown with 25°C hysteresis-ensures robust field reliability |
Applications
| Memory LCD Bias Supply | Optical Heart Rate Monitor LED Driver |
|---|---|
|
Use Scenario: Powering segment-based memory LCDs in smartwatches and fitness bands where display remains active for days between charges. IC Role / Device Role / Timing Role: Fixed 4.5V boost regulator providing stable bias rail; operates continuously at ~50µA load with no wake-up latency. Use Value: Enables >5-year battery life on CR2032 coin cell by sustaining 75% efficiency at 10µA and eliminating quiescent drain during display hold. |
Use Scenario: Driving green/IR LEDs in wrist-worn PPG sensors with pulsed 10–50mA bursts every 50ms, followed by long idle periods. IC Role / Device Role / Timing Role: Primary 4.5V supply for LED anode; enters burst mode during idle, then delivers full current on demand without soft-start delay. Use Value: Delivers precise 4.5V for consistent LED intensity while drawing only 400nA between pulses-extending battery life by 3× vs. standard boosters. |
| Low-Power Wireless Sensor Node | Portable Medical Glucose Meter |
|
Use Scenario: Powering BLE 5.0 transceivers (e.g., CC2640R2F) in battery-operated environmental sensors transmitting once per hour. IC Role / Device Role / Timing Role: Always-on 4.5V rail for RF IC and MCU; transitions seamlessly between boost, down, and pass-through modes as battery voltage decays from 3.6V to 0.8V. Use Value: Eliminates need for separate LDO or buck-boost; maintains regulated 4.5V across full battery discharge curve-reducing BOM count and PCB area by 30%. |
Use Scenario: Supplying 4.5V to electrochemical test strip interface and precision ADC in handheld glucose meters powered by AAA alkaline cells. IC Role / Device Role / Timing Role: Primary DC-DC converter enabling accurate 16-bit ADC measurements; provides stable 4.5V even as battery sags from 1.5V to 0.7V per cell. Use Value: Achieves ±0.5% output regulation over temperature (–40°C to 125°C) and line/load-meeting ISO 15197:2013 accuracy requirements for medical diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS610994YFFT | Fixed 3.3V output; identical quiescent current, package, and control architecture | Used where system logic requires 3.3V instead of 4.5V-e.g., interfacing with 3.3V microcontrollers or sensors | Select when target output voltage is 3.3V; shares same PCB footprint and layout guidelines |
| TPS610995YFFT | Fixed 3.6V output; same 6-ball WCSP package and 0.7V startup capability | Suitable for applications needing intermediate bias voltage-e.g., powering analog front-ends or RF amplifiers with 3.6V rails | Choose for 3.6V systems; offers identical efficiency profile and thermal performance as TPS610996YFFT |
Compared with TPS610994YFFT and TPS610995YFFT, the TPS610996YFFT provides a higher fixed output (4.5V) optimized for memory LCDs and LED drivers requiring elevated bias voltages-without trade-offs in quiescent current, package size, or light-load efficiency.
Availability
TPS610996YFFT is available at Aetrix Electronics and suitable for wearable electronics, optical biosensors, and portable medical devices requiring stable component supply with guaranteed long-term manufacturability and lifecycle continuity.
Supply support for TPS610996YFFT 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS61099x family was designed specifically for ultra-low-power battery-operated systems-including wearables, medical sensors, and IoT edge nodes-where micropower efficiency, minimal footprint, and wide-input operation are mandatory.
FAQ
What is the exact output voltage tolerance of the TPS610996YFFT?
The TPS610996YFFT delivers a fixed 4.5V output with ±2% accuracy over temperature (–40°C to 125°C), line (VIN = 0.7V–5.5V), and load (0–300mA). This specification is confirmed in Section 6.5 of the SLVSD88M datasheet under "TPS610996 Output accuracy" with typical values of 4.4V–4.6V in PWM mode and 4.63V in PFM mode.
Does the TPS610996YFFT require external feedback resistors?
No. The TPS610996YFFT is a fixed-output variant with internal EEPROM-programmed 4.5V regulation. Its FB pin is internally shorted to GND, so no external resistor divider is needed-reducing component count and PCB area. This is explicitly stated in Table 5-1 (Pin Functions) and Section 7.3.9 of the datasheet.
Can the TPS610996YFFT start up from a 0.7V input source?
Yes. The TPS610996YFFT guarantees startup from 0.7V input with a load ≤3kΩ, as verified in Section 7.3.4 (Soft Start) and Figure 6-9 (Load Regulation). It achieves this using a boundary-conduction soft-start sequence that limits inrush current and ramps peak switch current to full ILIM within 500µs.
How does the TPS610996YFFT behave when input voltage exceeds 4.5V?
When VIN rises above 4.5V, the TPS610996YFFT first enters down mode (regulating VOUT at 4.5V using PMOS gate modulation), then automatically transitions to pass-through mode when VIN > 5.0V (VOUT + 0.5V). In pass-through, VOUT ≈ VIN – (IL × DCRL) – (IL × RDS(on)_HS), minimizing power loss.
What is the thermal performance of the TPS610996YFFT in its YFF package?
In the 1.23mm × 0.88mm WCSP (YFF) package, the TPS610996YFFT has a junction-to-board thermal resistance (RθJB) of 36.1°C/W and junction-to-ambient (RθJA) of 134.4°C/W. These values-listed in Section 6.4-enable reliable operation up to 125°C ambient when mounted on 2-layer PCBs with adequate copper pour under the thermal pad.
TPS610996YFFT 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
TPS610996YFFT FAQ
1.How can I place an order for TPS610996YFFT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS610996YFFT 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 TPS610996YFFT reliable?
The price and inventory of TPS610996YFFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS610996YFFT is usually 5 days.
3.What payment methods are accepted for TPS610996YFFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS610996YFFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS610996YFFT?
TPS610996YFFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS610996YFFT 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 TPS610996YFFT?
For technical support, including TPS610996YFFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS610996YFFT requirements.
6.How does Aetrix verify that TPS610996YFFT is sourced from the original manufacturer or authorized distributors?
All TPS610996YFFT 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 TPS610996YFFT meets industry standards.
7.What is the process for return or replacement of TPS610996YFFT?
All TPS610996YFFT units undergo pre-shipment inspection (PSI). If there is an issue with TPS610996YFFT, 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 TPS610996YFFT part is unused and in its original packaging.
Return procedure for TPS610996YFFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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